diff --git a/chat-history.js b/chat-history.js
index 9f8e28c..83902bc 100644
--- a/chat-history.js
+++ b/chat-history.js
@@ -3,6 +3,7 @@
 // 可被 index.js 及其他模块安全导入。
 
 import { clampInt } from "./ui-status.js";
+import { sanitizePlannerMessageText } from "./planner-tag-utils.js";
 import { rollbackBatch } from "./runtime-state.js";
 
 export function isAssistantChatMessage(message) {
@@ -40,7 +41,7 @@ export function buildExtractionMessages(chat, startIdx, endIdx, settings) {
     messages.push({
       seq: index,
       role: msg.is_user ? "user" : "assistant",
-      content: msg.mes || "",
+      content: sanitizePlannerMessageText(msg),
     });
   }
 
diff --git a/ena-planner/ena-planner-presets.js b/ena-planner/ena-planner-presets.js
new file mode 100644
index 0000000..5125e09
--- /dev/null
+++ b/ena-planner/ena-planner-presets.js
@@ -0,0 +1,53 @@
+export const DEFAULT_PROMPT_BLOCKS = [
+  {
+    id: "ena-default-system-001",
+    role: "system",
+    name: "Ena Planner System",
+    content: `你是一位剧情规划师（Story Planner）。你的工作是在幕后为互动叙事提供方向指引，而不是直接扮演角色或撰写正文。
+
+## 你会收到的信息
+- 角色卡：当前角色的设定（描述、性格、场景）
+- 世界书：世界观设定和规则
+- 结构化记忆（BME）：由记忆图谱整理出的长期记忆
+  - [Memory - Core]：规则、摘要、长期约束
+  - [Memory - Recalled]：与当前情境相关的人物状态、事件、地点、剧情线
+- 聊天历史：最近的 AI 回复片段
+- 历史规划：之前生成的 <plot> 块
+- 玩家输入：玩家刚刚发出的指令或行动
+
+## 你的任务
+根据以上信息，为下一轮 AI 回复规划剧情走向。
+
+## 输出格式（严格遵守）
+只输出以下两个标签，不要输出任何其他内容：
+
+<plot>
+（剧情走向指引：接下来应该发生什么。包括场景推进、NPC 反应、事件触发、伏笔推进等。写给 AI 看的导演指令，不是给玩家看的正文。简洁、具体、可执行。）
+</plot>
+
+<note>
+（写作注意事项：这一轮回复应该怎么写。包括叙事节奏、情绪基调、应避免的问题、需要保持的连贯性等。同样是给 AI 的元指令，不是正文。）
+</note>
+
+## 规划原则
+1. 尊重玩家意图：玩家输入是最高优先级。
+2. 保持连贯：与 BME 记忆、历史规划和世界规则一致。
+3. 推进而非重复：每轮规划都应推动剧情前进。
+4. 留有余地：给方向，不要把正文细节写死。
+5. 遵守世界观：世界书中的规则和设定属于硬约束。
+
+如有思考过程，请放在 <thinking> 中（会被自动剔除）。`,
+  },
+  {
+    id: "ena-default-assistant-001",
+    role: "assistant",
+    name: "Assistant Seed",
+    content: `<think>
+先梳理玩家意图、当前局势、BME 记忆里的关键约束和最近的剧情推进，再给出下一步 plot 与 note。
+</think>`,
+  },
+];
+
+export const BUILTIN_TEMPLATES = {
+  默认模板: DEFAULT_PROMPT_BLOCKS,
+};
diff --git a/ena-planner/ena-planner-storage.js b/ena-planner/ena-planner-storage.js
new file mode 100644
index 0000000..345984f
--- /dev/null
+++ b/ena-planner/ena-planner-storage.js
@@ -0,0 +1,168 @@
+import { getRequestHeaders } from "../../../../../script.js";
+
+function debounce(fn, ms) {
+  let timer = null;
+  return (...args) => {
+    clearTimeout(timer);
+    timer = setTimeout(() => fn(...args), ms);
+  };
+}
+
+const toBase64 = (text) => btoa(unescape(encodeURIComponent(text)));
+
+class StorageFile {
+  constructor(filename, opts = {}) {
+    this.filename = filename;
+    this.cache = null;
+    this._loading = null;
+    this._dirtyVersion = 0;
+    this._savedVersion = 0;
+    this._saving = false;
+    this._pendingSave = false;
+    this._retryCount = 0;
+    this._retryTimer = null;
+    this._maxRetries = Number.isFinite(opts.maxRetries) ? opts.maxRetries : 5;
+    const debounceMs = Number.isFinite(opts.debounceMs) ? opts.debounceMs : 2000;
+    this._saveDebounced = debounce(() => this.saveNow({ silent: true }), debounceMs);
+  }
+
+  async load() {
+    if (this.cache !== null) return this.cache;
+    if (this._loading) return this._loading;
+
+    this._loading = (async () => {
+      try {
+        const res = await fetch(`/user/files/${this.filename}`, {
+          headers: getRequestHeaders(),
+          cache: "no-cache",
+        });
+        if (!res.ok) {
+          this.cache = {};
+          return this.cache;
+        }
+        const text = await res.text();
+        this.cache = text ? JSON.parse(text) || {} : {};
+      } catch {
+        this.cache = {};
+      } finally {
+        this._loading = null;
+      }
+      return this.cache;
+    })();
+
+    return this._loading;
+  }
+
+  async get(key, defaultValue = null) {
+    const data = await this.load();
+    return data[key] ?? defaultValue;
+  }
+
+  async set(key, value) {
+    const data = await this.load();
+    data[key] = value;
+    this._dirtyVersion++;
+    this._saveDebounced();
+  }
+
+  async saveNow({ silent = true } = {}) {
+    if (this._saving) {
+      this._pendingSave = true;
+      if (!silent) {
+        await this._waitForSaveComplete();
+        if (this._dirtyVersion > this._savedVersion) {
+          return this.saveNow({ silent });
+        }
+        return this._dirtyVersion === this._savedVersion;
+      }
+      return true;
+    }
+
+    if (!this.cache || this._dirtyVersion === this._savedVersion) {
+      return true;
+    }
+
+    this._saving = true;
+    this._pendingSave = false;
+    const versionToSave = this._dirtyVersion;
+
+    try {
+      const json = JSON.stringify(this.cache);
+      const base64 = toBase64(json);
+      const res = await fetch("/api/files/upload", {
+        method: "POST",
+        headers: getRequestHeaders(),
+        body: JSON.stringify({ name: this.filename, data: base64 }),
+      });
+      if (!res.ok) {
+        throw new Error(`Server returned ${res.status}`);
+      }
+
+      this._savedVersion = Math.max(this._savedVersion, versionToSave);
+      this._retryCount = 0;
+      if (this._retryTimer) {
+        clearTimeout(this._retryTimer);
+        this._retryTimer = null;
+      }
+      return true;
+    } catch (error) {
+      console.error("[EnaPlannerStorage] Save failed:", error);
+      this._retryCount++;
+      const delay = Math.min(30000, 2000 * (2 ** Math.max(0, this._retryCount - 1)));
+      if (!this._retryTimer && this._retryCount <= this._maxRetries) {
+        this._retryTimer = setTimeout(() => {
+          this._retryTimer = null;
+          this.saveNow({ silent: true });
+        }, delay);
+      }
+
+      if (!silent) {
+        throw error;
+      }
+      return false;
+    } finally {
+      this._saving = false;
+      if (this._pendingSave || this._dirtyVersion > this._savedVersion) {
+        this._saveDebounced();
+      }
+    }
+  }
+
+  _waitForSaveComplete() {
+    return new Promise((resolve) => {
+      const check = () => {
+        if (!this._saving) resolve();
+        else setTimeout(check, 50);
+      };
+      check();
+    });
+  }
+}
+
+export const EnaPlannerStorage = new StorageFile("STBME_EnaPlanner.json", {
+  debounceMs: 800,
+});
+
+export async function migrateFromLWBIfNeeded() {
+  const existing = await EnaPlannerStorage.get("config", null);
+  if (existing) return false;
+
+  try {
+    const res = await fetch("/user/files/LittleWhiteBox_EnaPlanner.json", {
+      headers: getRequestHeaders(),
+      cache: "no-cache",
+    });
+    if (!res.ok) return false;
+    const text = await res.text();
+    const old = text ? JSON.parse(text) : null;
+    if (!old?.config) return false;
+
+    await EnaPlannerStorage.set("config", old.config);
+    await EnaPlannerStorage.set("logs", Array.isArray(old.logs) ? old.logs : []);
+    await EnaPlannerStorage.saveNow({ silent: false });
+    return true;
+  } catch (error) {
+    console.warn("[Ena] LWB config migration failed:", error);
+    return false;
+  }
+}
diff --git a/ena-planner/ena-planner.css b/ena-planner/ena-planner.css
new file mode 100644
index 0000000..52dec9c
--- /dev/null
+++ b/ena-planner/ena-planner.css
@@ -0,0 +1,888 @@
+/* ═══════════════════════════════════════════════════════════════════════════
+   Ena Planner — Settings UI
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+*,
+*::before,
+*::after {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+:root {
+  --bg: #121212;
+  --bg2: #1e1e1e;
+  --bg3: #2a2a2a;
+  --txt: #e0e0e0;
+  --txt2: #b0b0b0;
+  --txt3: #808080;
+  --bdr: #3a3a3a;
+  --bdr2: #333;
+  --acc: #e0e0e0;
+  --hl: #e8928a;
+  --hl2: #d87a7a;
+  --hl-soft: rgba(232, 146, 138, .1);
+  --inv: #1e1e1e;
+  --success: #4caf50;
+  --warn: #ffb74d;
+  --error: #ef5350;
+  --code-bg: #0d0d0d;
+  --code-txt: #d4d4d4;
+  --radius: 4px;
+}
+
+html,
+body {
+  height: auto;
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
+  background: var(--bg);
+  color: var(--txt);
+  font-size: 14px;
+  line-height: 1.6;
+  min-height: 100vh;
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Layout
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.container {
+  display: flex;
+  flex-direction: column;
+  min-height: 100vh;
+  padding: 24px 40px;
+  max-width: 860px;
+  margin: 0 auto;
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Header
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+header {
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  padding-bottom: 24px;
+  border-bottom: 1px solid var(--bdr);
+  margin-bottom: 24px;
+}
+
+.header-left h1 {
+  font-size: 2rem;
+  font-weight: 300;
+  letter-spacing: -.02em;
+  margin-bottom: 4px;
+  color: var(--txt);
+}
+
+.header-left h1 span {
+  font-weight: 600;
+}
+
+.subtitle {
+  font-size: .75rem;
+  color: var(--txt3);
+  letter-spacing: .08em;
+  text-transform: uppercase;
+}
+
+.stats {
+  display: flex;
+  gap: 40px;
+  align-items: center;
+  text-align: right;
+}
+
+.stat-val {
+  font-size: 1.125rem;
+  font-weight: 500;
+  line-height: 1.2;
+  color: var(--txt);
+}
+
+.stat-val .hl {
+  color: var(--hl);
+}
+
+.stat-lbl {
+  font-size: .6875rem;
+  color: var(--txt3);
+  text-transform: uppercase;
+  letter-spacing: .1em;
+  margin-top: 4px;
+}
+
+.modal-close {
+  width: 36px;
+  height: 36px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: transparent;
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  cursor: pointer;
+  transition: border-color .2s;
+  margin-left: 16px;
+}
+
+.modal-close:hover {
+  border-color: var(--txt2);
+}
+
+.modal-close svg {
+  width: 16px;
+  height: 16px;
+  color: var(--txt2);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Nav Tabs (desktop)
+   ═══════════════════════════════════════════ */
+
+.nav-tabs {
+  display: flex;
+  gap: 24px;
+  border-bottom: 1px solid var(--bdr);
+  margin-bottom: 24px;
+}
+
+.nav-item {
+  font-size: .8125rem;
+  font-weight: 500;
+  color: var(--txt3);
+  text-transform: uppercase;
+  letter-spacing: .08em;
+  padding-bottom: 12px;
+  border-bottom: 2px solid transparent;
+  margin-bottom: -1px;
+  cursor: pointer;
+  transition: color .2s, border-color .2s;
+  user-select: none;
+}
+
+.nav-item:hover {
+  color: var(--txt2);
+}
+
+.nav-item.active {
+  color: var(--hl);
+  border-bottom-color: var(--hl);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Mobile Nav (bottom)
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.mobile-nav {
+  display: none;
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  height: 56px;
+  background: var(--bg2);
+  border-top: 1px solid var(--bdr);
+  z-index: 100;
+}
+
+.mobile-nav-inner {
+  display: flex;
+  height: 100%;
+}
+
+.mobile-nav-item {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 2px;
+  color: var(--txt3);
+  font-size: .625rem;
+  text-transform: uppercase;
+  letter-spacing: .05em;
+  cursor: pointer;
+  user-select: none;
+  transition: color .2s;
+}
+
+.mobile-nav-item span {
+  line-height: 1;
+}
+
+.mobile-nav-item .nav-dot {
+  width: 4px;
+  height: 4px;
+  border-radius: 50%;
+  background: transparent;
+  transition: background .2s;
+  margin-bottom: 2px;
+}
+
+.mobile-nav-item.active {
+  color: var(--hl);
+}
+
+.mobile-nav-item.active .nav-dot {
+  background: var(--hl);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Views
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.view {
+  display: none;
+}
+
+.view.active {
+  display: block;
+  animation: fadeIn .25s ease;
+}
+
+@keyframes fadeIn {
+  from {
+    opacity: 0;
+    transform: translateY(4px);
+  }
+
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Cards
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.card {
+  background: var(--bg2);
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  padding: 24px;
+  margin-bottom: 20px;
+}
+
+.card-title {
+  font-size: .75rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: .12em;
+  color: var(--txt2);
+  margin-bottom: 20px;
+  padding-bottom: 10px;
+  border-bottom: 1px dashed var(--bdr2);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Forms
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.form-row {
+  display: flex;
+  gap: 16px;
+  flex-wrap: wrap;
+}
+
+.form-group {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  flex: 1;
+  min-width: 180px;
+  margin-bottom: 16px;
+}
+
+.form-row .form-group {
+  margin-bottom: 0;
+}
+
+.form-row+.form-row {
+  margin-top: 16px;
+}
+
+.form-label {
+  font-size: .6875rem;
+  color: var(--txt3);
+  text-transform: uppercase;
+  letter-spacing: .06em;
+}
+
+.form-hint {
+  font-size: .75rem;
+  color: var(--txt3);
+  line-height: 1.5;
+  margin-top: 4px;
+}
+
+.input {
+  width: 100%;
+  padding: 9px 12px;
+  background: var(--bg3);
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  font-size: .8125rem;
+  color: var(--txt);
+  font-family: inherit;
+  outline: none;
+  transition: border-color .2s;
+}
+
+.input:focus {
+  border-color: var(--txt2);
+}
+
+.input::placeholder {
+  color: var(--txt3);
+}
+
+select.input {
+  appearance: none;
+  -webkit-appearance: none;
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='none' stroke='%23808080' stroke-width='2'%3E%3Cpolyline points='2 3.5 5 6.5 8 3.5'/%3E%3C/svg%3E");
+  background-repeat: no-repeat;
+  background-position: right 10px center;
+  padding-right: 28px;
+  cursor: pointer;
+}
+
+textarea.input {
+  min-height: 80px;
+  resize: vertical;
+}
+
+.input-row {
+  display: flex;
+  gap: 8px;
+}
+
+.input-row .input {
+  flex: 1;
+  min-width: 0;
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Buttons
+   ═══════════════════════════════════════════ */
+
+.btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: 9px 18px;
+  background: var(--bg2);
+  color: var(--txt);
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  font-size: .8125rem;
+  font-weight: 500;
+  font-family: inherit;
+  cursor: pointer;
+  transition: border-color .2s, background .2s;
+  white-space: nowrap;
+}
+
+.btn:hover {
+  border-color: var(--txt3);
+  background: var(--bg3);
+}
+
+.btn:disabled {
+  opacity: .35;
+  cursor: not-allowed;
+}
+
+.btn-p {
+  background: var(--acc);
+  color: var(--inv);
+  border-color: var(--acc);
+}
+
+.btn-p:hover {
+  background: var(--txt2);
+  border-color: var(--txt2);
+}
+
+.btn-del {
+  color: var(--hl);
+  border-color: rgba(232, 146, 138, .3);
+}
+
+.btn-del:hover {
+  background: var(--hl-soft);
+  border-color: var(--hl);
+}
+
+.btn-sm {
+  padding: 5px 12px;
+  font-size: .75rem;
+}
+
+.btn-group {
+  display: flex;
+  gap: 8px;
+  flex-wrap: wrap;
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Tip Box
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.tip-box {
+  display: flex;
+  gap: 12px;
+  align-items: flex-start;
+  padding: 14px 16px;
+  background: var(--hl-soft);
+  border: 1px solid var(--bdr);
+  border-left: 3px solid var(--hl);
+  border-radius: var(--radius);
+  margin-bottom: 20px;
+}
+
+.tip-icon {
+  flex-shrink: 0;
+  font-size: .875rem;
+  line-height: 1.6;
+}
+
+.tip-text {
+  font-size: .8125rem;
+  color: var(--txt2);
+  line-height: 1.6;
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Prompt Blocks
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.prompt-block {
+  background: var(--bg3);
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  padding: 16px;
+  margin-bottom: 10px;
+}
+
+.prompt-head {
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  gap: 10px;
+  margin-bottom: 10px;
+  flex-wrap: wrap;
+}
+
+.prompt-head-left {
+  display: flex;
+  gap: 8px;
+  flex: 1;
+  min-width: 200px;
+}
+
+.prompt-head-right {
+  display: flex;
+  gap: 6px;
+}
+
+.prompt-block textarea.input {
+  min-height: 120px;
+  font-family: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
+  font-size: .75rem;
+  line-height: 1.5;
+}
+
+.prompt-empty {
+  text-align: center;
+  padding: 36px 20px;
+  color: var(--txt3);
+  font-size: .8125rem;
+  border: 1px dashed var(--bdr);
+  border-radius: var(--radius);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Undo Bar
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.undo-bar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 10px 14px;
+  margin-top: 12px;
+  background: var(--hl-soft);
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  font-size: .8125rem;
+  color: var(--txt2);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Status Text
+   ═══════════════════════════════════════════ */
+
+.status-text {
+  font-size: .75rem;
+  color: var(--txt3);
+  margin-top: 10px;
+  min-height: 1em;
+}
+
+.status-text.success {
+  color: var(--success);
+}
+
+.status-text.error {
+  color: var(--error);
+}
+
+.status-text.loading {
+  color: var(--warn);
+}
+
+/* ═══════════════════════════════════════════
+   Logs
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.log-list {
+  max-height: 60vh;
+  overflow-y: auto;
+  border: 1px solid var(--bdr);
+  border-radius: var(--radius);
+  background: var(--bg3);
+}
+
+.log-item {
+  padding: 14px 16px;
+  border-bottom: 1px solid var(--bdr2);
+}
+
+.log-item:last-child {
+  border-bottom: none;
+}
+
+.log-meta {
+  display: flex;
+  justify-content: space-between;
+  font-size: .6875rem;
+  color: var(--txt3);
+  text-transform: uppercase;
+  letter-spacing: .04em;
+  margin-bottom: 8px;
+}
+
+.log-meta .success {
+  color: var(--success);
+}
+
+.log-meta .error {
+  color: var(--error);
+}
+
+.log-error {
+  color: var(--error);
+  font-size: .8125rem;
+  margin-bottom: 8px;
+  white-space: pre-wrap;
+}
+
+.log-pre {
+  background: var(--code-bg);
+  color: var(--code-txt);
+  padding: 12px;
+  border-radius: var(--radius);
+  font-family: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
+  font-size: .6875rem;
+  line-height: 1.5;
+  white-space: pre-wrap;
+  word-break: break-word;
+  max-height: 280px;
+  overflow-y: auto;
+  margin-top: 6px;
+}
+
+.log-empty {
+  text-align: center;
+  padding: 36px 20px;
+  color: var(--txt3);
+  font-size: .8125rem;
+}
+
+/* Message cards inside log */
+.msg-list {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+  margin-top: 8px;
+}
+
+.msg-card {
+  border-radius: var(--radius);
+  border-left: 3px solid var(--bdr);
+  background: var(--code-bg);
+  padding: 8px 12px;
+}
+
+.msg-card.msg-system { border-left-color: #6b8afd; }
+.msg-card.msg-user   { border-left-color: #4ecdc4; }
+.msg-card.msg-assistant { border-left-color: #f7a046; }
+
+.msg-role {
+  font-size: .6875rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: .04em;
+  margin-bottom: 4px;
+  color: var(--txt3);
+}
+
+.msg-system .msg-role { color: #6b8afd; }
+.msg-user .msg-role   { color: #4ecdc4; }
+.msg-assistant .msg-role { color: #f7a046; }
+
+.msg-content {
+  font-family: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
+  font-size: .6875rem;
+  line-height: 1.6;
+  white-space: pre-wrap;
+  word-break: break-word;
+  color: var(--code-txt);
+  margin: 0;
+  max-height: 300px;
+  overflow-y: auto;
+}
+
+details {
+  margin-bottom: 6px;
+}
+
+details:last-child {
+  margin-bottom: 0;
+}
+
+details summary {
+  cursor: pointer;
+  font-size: .75rem;
+  font-weight: 500;
+  color: var(--txt3);
+  user-select: none;
+  padding: 4px 0;
+  transition: color .15s;
+}
+
+details summary:hover {
+  color: var(--txt);
+}
+
+/* ═══════════════════════════════════════════════════════════════════════════
+   Debug Output
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.debug-output {
+  background: var(--code-bg);
+  color: var(--code-txt);
+  padding: 14px;
+  border-radius: var(--radius);
+  font-family: 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
+  font-size: .6875rem;
+  line-height: 1.6;
+  margin-top: 16px;
+  max-height: 400px;
+  overflow-y: auto;
+  white-space: pre-wrap;
+  word-break: break-word;
+  display: none;
+}
+
+.debug-output.visible {
+  display: block;
+}
+
+/* ═══════════════════════════════════════════
+   Utilities
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+.hidden {
+  display: none !important;
+}
+
+::-webkit-scrollbar {
+  width: 5px;
+  height: 5px;
+}
+
+::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+::-webkit-scrollbar-thumb {
+  background: var(--bdr);
+  border-radius: 3px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: var(--txt3);
+}
+
+/* ═══════════════════════════════════════════
+   Responsive — Tablet
+   ═══════════════════════════════════════════ */
+
+@media (max-width: 768px) {
+  .container {
+    padding: 16px;
+  }
+
+  header {
+    flex-direction: column;
+    gap: 16px;
+  }
+
+  .header-left h1 {
+    font-size: 1.5rem;
+  }
+
+  .stats {
+    width: 100%;
+    justify-content: flex-start;
+    gap: 24px;
+  }
+
+  .modal-close {
+    position: absolute;
+    top: 16px;
+    right: 16px;
+    margin-left: 0;
+  }
+
+  .nav-tabs {
+    display: none;
+  }
+
+  .mobile-nav {
+    display: block;
+  }
+
+  .container {
+    padding-bottom: 72px;
+  }
+
+  .form-row {
+    flex-direction: column;
+    gap: 0;
+  }
+
+  .card {
+    padding: 16px;
+  }
+
+  .prompt-head {
+    flex-direction: column;
+  }
+
+  .prompt-head-left {
+    min-width: 0;
+    flex-direction: column;
+  }
+}
+
+/* ═══════════════════════════════════════════
+   Responsive — Small phone
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+@media (max-width: 480px) {
+  .container {
+    padding: 12px;
+    padding-bottom: 68px;
+  }
+
+  header {
+    gap: 12px;
+    padding-bottom: 16px;
+    margin-bottom: 16px;
+  }
+
+  .header-left h1 {
+    font-size: 1.25rem;
+  }
+
+  .subtitle {
+    font-size: .625rem;
+  }
+
+  .stats {
+    gap: 16px;
+  }
+
+  .stat-val {
+    font-size: 1rem;
+  }
+
+  .card {
+    padding: 14px;
+    margin-bottom: 14px;
+  }
+
+  .btn-group {
+    flex-direction: column;
+  }
+
+  .btn-group .btn {
+    width: 100%;
+  }
+
+  .mobile-nav {
+    height: 52px;
+  }
+
+  .mobile-nav-item {
+    font-size: .5625rem;
+  }
+}
+
+/* ═══════════════════════════════════════════
+   Touch devices — 44px minimum target
+   ═══════════════════════════════════════════════════════════════════════════ */
+
+@media (hover: none) and (pointer: coarse) {
+  .btn {
+    min-height: 44px;
+    padding: 10px 18px;
+  }
+
+  .btn-sm {
+    min-height: 40px;
+  }
+
+  .input {
+    min-height: 44px;
+    padding: 10px 12px;
+  }
+
+  .nav-item {
+    padding-bottom: 14px;
+  }
+
+  .mobile-nav-item {
+    min-height: 44px;
+  }
+
+  .modal-close {
+    width: 44px;
+    height: 44px;
+  }
+
+  details summary {
+    padding: 8px 0;
+  }
+}
diff --git a/ena-planner/ena-planner.html b/ena-planner/ena-planner.html
new file mode 100644
index 0000000..9ef87e5
--- /dev/null
+++ b/ena-planner/ena-planner.html
@@ -0,0 +1,965 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="mobile-web-app-capable" content="yes">
+  <title>Ena Planner</title>
+  <link rel="stylesheet" href="./ena-planner.css">
+</head>
+
+<body>
+  <div class="container">
+
+    <header>
+      <div class="header-left">
+        <h1>Ena<span>Planner</span></h1>
+        <div class="subtitle">Story Planning · LLM Integration —— Created by Hao19911125</div>
+      </div>
+      <div class="stats">
+        <div class="stat">
+          <div class="stat-val" id="ep_badge"><span class="hl">未启用</span></div>
+          <div class="stat-lbl">状态</div>
+        </div>
+        <div class="stat">
+          <div class="stat-val" id="ep_save_status">就绪</div>
+          <div class="stat-lbl">保存</div>
+        </div>
+        <button class="modal-close" id="ep_close" title="关闭">
+          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+            <line x1="18" y1="6" x2="6" y2="18" />
+            <line x1="6" y1="6" x2="18" y2="18" />
+          </svg>
+        </button>
+      </div>
+    </header>
+
+    <!-- Desktop tabs -->
+    <div class="nav-tabs">
+      <div class="nav-item active" data-view="quickstart">快速开始</div>
+      <div class="nav-item" data-view="api">API 配置</div>
+      <div class="nav-item" data-view="prompt">提示词</div>
+      <div class="nav-item" data-view="context">上下文</div>
+      <div class="nav-item" data-view="debug">调试</div>
+    </div>
+
+    <main class="app-main">
+
+      <!-- ── 快速开始 ── -->
+      <div id="view-quickstart" class="view active">
+        <div class="tip-box">
+          <div class="tip-icon">ℹ</div>
+          <div class="tip-text">
+            <strong>工作流程：</strong>点击发送 → 拦截 → 收集上下文（角色卡、世界书、BME 记忆、历史 plot、最近 AI 回复）→ 发给规划 LLM → 提取 &lt;plot&gt; 和
+            &lt;note&gt; → 追加到你的输入 → 放行发送
+          </div>
+        </div>
+
+        <section class="card">
+          <div class="card-title">基本设置</div>
+          <div class="form-row">
+            <div class="form-group">
+              <label class="form-label">启用规划器</label>
+              <select id="ep_enabled" class="input">
+                <option value="true">开启</option>
+                <option value="false">关闭</option>
+              </select>
+            </div>
+            <div class="form-group">
+              <label class="form-label">跳过已有规划的输入</label>
+              <select id="ep_skip_plot" class="input">
+                <option value="true">是</option>
+                <option value="false">否</option>
+              </select>
+            </div>
+          </div>
+          <p class="form-hint">输入中已有 &lt;plot&gt; 标签时跳过自动规划。</p>
+        </section>
+
+        <section class="card">
+          <div class="card-title">快速测试</div>
+          <div class="form-group">
+            <label class="form-label">测试输入（留空使用默认）</label>
+            <textarea id="ep_test_input" class="input" rows="3" placeholder="输入一段剧情描述，测试规划器输出..."></textarea>
+          </div>
+          <div class="btn-group">
+            <button id="ep_run_test" class="btn btn-p">运行规划测试</button>
+          </div>
+          <div id="ep_test_status" class="status-text"></div>
+        </section>
+      </div>
+
+      <!-- ── API 配置 ── -->
+      <div id="view-api" class="view">
+        <section class="card">
+          <div class="card-title">连接设置</div>
+          <div class="form-row">
+            <div class="form-group">
+              <label class="form-label">渠道类型</label>
+              <select id="ep_api_channel" class="input">
+                <option value="openai">OpenAI 兼容</option>
+                <option value="gemini">Gemini 兼容</option>
+                <option value="claude">Claude 兼容</option>
+              </select>
+            </div>
+            <div class="form-group">
+              <label class="form-label">路径前缀</label>
+              <select id="ep_prefix_mode" class="input">
+                <option value="auto">自动 (如 /v1)</option>
+                <option value="custom">自定义</option>
+              </select>
+            </div>
+          </div>
+          <div class="form-group">
+            <label class="form-label">API 地址</label>
+            <input id="ep_api_base" type="text" class="input" placeholder="https://api.openai.com">
+          </div>
+          <div class="form-group hidden" id="ep_custom_prefix_group">
+            <label class="form-label">自定义前缀</label>
+            <input id="ep_prefix_custom" type="text" class="input" placeholder="/v1">
+          </div>
+          <div class="form-row">
+            <div class="form-group">
+              <label class="form-label">API Key</label>
+              <div class="input-row">
+                <input id="ep_api_key" type="password" class="input" placeholder="sk-...">
+                <button id="ep_toggle_key" class="btn">显示</button>
+              </div>
+            </div>
+            <div class="form-group">
+              <label class="form-label">模型</label>
+              <input id="ep_model" type="text" class="input" placeholder="gpt-4o, claude-3-5-sonnet...">
+            </div>
+          </div>
+          <div id="ep_model_selector" class="hidden" style="margin-top:12px;">
+            <label class="form-label">选择模型</label>
+            <select id="ep_model_select" class="input">
+              <option value="">-- 从列表选择 --</option>
+            </select>
+          </div>
+          <div class="btn-group" style="margin-top:16px;">
+            <button id="ep_fetch_models" class="btn">拉取模型列表</button>
+            <button id="ep_test_conn" class="btn">测试连接</button>
+          </div>
+          <div id="ep_api_status" class="status-text"></div>
+        </section>
+
+        <section class="card">
+          <div class="card-title">生成参数</div>
+          <div class="form-row">
+            <div class="form-group">
+              <label class="form-label">流式输出</label>
+              <select id="ep_stream" class="input">
+                <option value="true">开启</option>
+                <option value="false">关闭</option>
+              </select>
+            </div>
+            <div class="form-group">
+              <label class="form-label">Temperature</label>
+              <input id="ep_temp" type="number" class="input" step="0.1" min="0" max="2">
+            </div>
+            <div class="form-group">
+              <label class="form-label">Top P</label>
+              <input id="ep_top_p" type="number" class="input" step="0.05" min="0" max="1">
+            </div>
+          </div>
+          <div class="form-row">
+            <div class="form-group">
+              <label class="form-label">Top K</label>
+              <input id="ep_top_k" type="number" class="input" step="1" min="0">
+            </div>
+            <div class="form-group">
+              <label class="form-label">Presence penalty</label>
+              <input id="ep_pp" type="text" class="input" placeholder="-2 ~ 2">
+            </div>
+            <div class="form-group">
+              <label class="form-label">Frequency penalty</label>
+              <input id="ep_fp" type="text" class="input" placeholder="-2 ~ 2">
+            </div>
+          </div>
+          <div class="form-group">
+            <label class="form-label">最大 Token 数</label>
+            <input id="ep_mt" type="text" class="input" placeholder="留空则不限制">
+          </div>
+        </section>
+      </div>
+
+      <!-- ── 提示词 ── -->
+      <div id="view-prompt" class="view">
+        <div class="tip-box">
+          <div class="tip-icon">💡</div>
+          <div class="tip-text">
+              系统会自动在提示词之后注入：角色卡、世界书、BME 结构化记忆、聊天历史和历史 plot 等上下文。你只需专注编写"规划指令"。
+          </div>
+        </div>
+
+        <section class="card">
+          <div class="card-title">模板管理</div>
+          <div class="form-row">
+            <div class="form-group" style="flex:2;">
+              <select id="ep_tpl_select" class="input">
+                <option value="">-- 选择模板 --</option>
+              </select>
+            </div>
+            <div class="form-group" style="flex:3;">
+              <div class="btn-group">
+                <button id="ep_tpl_save" class="btn btn-p">保存</button>
+                <button id="ep_tpl_saveas" class="btn">另存为</button>
+                <button id="ep_tpl_delete" class="btn btn-del">删除</button>
+              </div>
+            </div>
+          </div>
+          <div id="ep_tpl_undo" class="undo-bar hidden">
+            <span>模板 <strong id="ep_tpl_undo_name"></strong> 已删除</span>
+            <button id="ep_tpl_undo_btn" class="btn btn-p btn-sm">撤销</button>
+          </div>
+        </section>
+
+        <section class="card">
+          <div class="card-title">提示词块</div>
+          <div id="ep_prompt_list"></div>
+          <div class="prompt-empty" id="ep_prompt_empty" style="display:none;">暂无提示词块</div>
+          <div class="btn-group" style="margin-top:16px;">
+            <button id="ep_add_prompt" class="btn">添加区块</button>
+            <button id="ep_reset_prompt" class="btn btn-del">恢复默认</button>
+          </div>
+        </section>
+      </div>
+
+      <!-- ── 上下文 ── -->
+      <div id="view-context" class="view">
+        <section class="card">
+          <div class="card-title">世界书</div>
+          <div class="form-row">
+            <div class="form-group">
+              <label class="form-label">读取全局世界书</label>
+              <select id="ep_include_global_wb" class="input">
+                <option value="false">否</option>
+                <option value="true">是</option>
+              </select>
+            </div>
+            <div class="form-group">
+              <label class="form-label">排除 position=4 的条目</label>
+              <select id="ep_wb_pos4" class="input">
+                <option value="true">是</option>
+                <option value="false">否</option>
+              </select>
+            </div>
+          </div>
+          <div class="form-group">
+            <label class="form-label">排除的条目名称关键词（逗号分隔）</label>
+            <input id="ep_wb_exclude_names" type="text" class="input" placeholder="mvu_update, system, ...">
+          </div>
+        </section>
+
+        <section class="card">
+          <div class="card-title">聊天与历史</div>
+          <div class="form-group">
+            <label class="form-label">保留的规划输出标签（逗号分隔）</label>
+            <input id="ep_keep_tags" type="text" class="input" placeholder="plot, note, plot-log, state">
+            <p class="form-hint">仅支持英文标签（如 plot, note, memory）。留空表示不按标签过滤（仅去除 think）。无效标签会自动忽略。</p>
+          </div>
+          <div class="form-group">
+            <label class="form-label">清理 AI 回复中的干扰标签（逗号分隔）</label>
+            <input id="ep_exclude_tags" type="text" class="input"
+              placeholder="行动选项, UpdateVariable, StatusPlaceHolderImpl">
+          </div>
+          <div class="form-group">
+            <label class="form-label">携带最近 N 条历史 plot</label>
+            <input id="ep_plot_n" type="number" class="input" min="0" max="10" step="1">
+          </div>
+        </section>
+      </div>
+
+      <!-- ── 调试 ── -->
+      <div id="view-debug" class="view">
+        <section class="card">
+          <div class="card-title">诊断工具</div>
+          <div class="btn-group">
+            <button id="ep_debug_worldbook" class="btn">诊断世界书</button>
+            <button id="ep_debug_char" class="btn">诊断角色卡</button>
+            <button id="ep_test_planner" class="btn btn-p">运行规划测试</button>
+          </div>
+          <pre id="ep_debug_output" class="debug-output"></pre>
+        </section>
+
+        <section class="card">
+          <div class="card-title">日志</div>
+          <div class="form-row" style="margin-bottom:16px;">
+            <div class="form-group">
+              <label class="form-label">持久化日志</label>
+              <select id="ep_logs_persist" class="input">
+                <option value="true">是</option>
+                <option value="false">否</option>
+              </select>
+            </div>
+            <div class="form-group">
+              <label class="form-label">最大日志条数</label>
+              <input id="ep_logs_max" type="number" class="input" min="1" max="200" step="1">
+            </div>
+          </div>
+          <div class="btn-group" style="margin-bottom:16px;">
+            <button id="ep_open_logs" class="btn">刷新</button>
+            <button id="ep_log_export" class="btn">导出 JSON</button>
+            <button id="ep_log_clear" class="btn btn-del">清空日志</button>
+          </div>
+          <div id="ep_log_body" class="log-list">
+            <div class="log-empty">暂无日志</div>
+          </div>
+        </section>
+      </div>
+
+    </main>
+
+    <!-- Mobile bottom nav -->
+    <nav class="mobile-nav">
+      <div class="mobile-nav-inner">
+        <div class="mobile-nav-item active" data-view="quickstart">
+          <div class="nav-dot"></div><span>开始</span>
+        </div>
+        <div class="mobile-nav-item" data-view="api">
+          <div class="nav-dot"></div><span>API</span>
+        </div>
+        <div class="mobile-nav-item" data-view="prompt">
+          <div class="nav-dot"></div><span>提示词</span>
+        </div>
+        <div class="mobile-nav-item" data-view="context">
+          <div class="nav-dot"></div><span>上下文</span>
+        </div>
+        <div class="mobile-nav-item" data-view="debug">
+          <div class="nav-dot"></div><span>调试</span>
+        </div>
+      </div>
+    </nav>
+
+  </div>
+
+  <script>
+    const PARENT_ORIGIN = (() => {
+      try { return new URL(document.referrer).origin; } catch { return window.location.origin; }
+    })();
+
+    const post = (type, payload) => parent.postMessage({ type, payload }, PARENT_ORIGIN);
+    const $ = id => document.getElementById(id);
+    const $$ = sel => document.querySelectorAll(sel);
+
+    function genId() {
+      try { return crypto.randomUUID(); } catch { return `${Date.now()}_${Math.random().toString(36).slice(2, 8)}`; }
+    }
+
+    let cfg = null;
+    let logs = [];
+    let pendingSave = null;
+    let undoState = null;
+    let undoPending = false;
+    let fetchedModels = [];
+
+    /* ── Save indicator ── */
+
+    function setSaveIndicator(state, text) {
+      const el = $('ep_save_status');
+      if (!el) return;
+      if (state === 'saving') {
+        el.innerHTML = `<span style="color:var(--warn)">${text || '保存中…'}</span>`;
+      } else if (state === 'saved') {
+        el.innerHTML = `<span style="color:var(--success)">${text || '已保存'}</span>`;
+      } else if (state === 'error') {
+        el.innerHTML = `<span style="color:var(--error)">${text || '保存失败'}</span>`;
+      } else {
+        el.textContent = '就绪';
+      }
+    }
+
+    function startPendingSave(requestId) {
+      pendingSave = {
+        requestId,
+        timer: setTimeout(() => {
+          if (!pendingSave || pendingSave.requestId !== requestId) return;
+          pendingSave = null;
+          setSaveIndicator('error', '保存超时');
+        }, 5000)
+      };
+      setSaveIndicator('saving');
+    }
+
+    function resolvePendingSave(requestId) {
+      if (!pendingSave || pendingSave.requestId !== requestId) return;
+      clearTimeout(pendingSave.timer);
+      pendingSave = null;
+      setSaveIndicator('saved');
+      setTimeout(() => setSaveIndicator(''), 2000);
+    }
+
+    function rejectPendingSave(requestId, msg) {
+      if (!pendingSave || pendingSave.requestId !== requestId) return;
+      clearTimeout(pendingSave.timer);
+      pendingSave = null;
+      setSaveIndicator('error', msg || '保存失败');
+    }
+
+    /* ── Auto-save ── */
+
+    let autoSaveTimer = null;
+
+    function scheduleSave() {
+      if (undoPending) return;
+      if (autoSaveTimer) clearTimeout(autoSaveTimer);
+      autoSaveTimer = setTimeout(doSave, 600);
+    }
+
+    function doSave() {
+      if (pendingSave) return;
+      const requestId = `ena_${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
+      const patch = collectPatch();
+      startPendingSave(requestId);
+      post('xb-ena:save-config', { requestId, patch });
+    }
+
+    /* ── UI helpers ── */
+
+    function setLocalStatus(elId, text, type) {
+      const el = $(elId);
+      if (!el) return;
+      el.textContent = text || '';
+      el.className = 'status-text' + (type ? ' ' + type : '');
+    }
+
+    function setBadge(enabled) {
+      const badge = $('ep_badge');
+      badge.innerHTML = enabled
+        ? '<span class="hl">已启用</span>'
+        : '<span style="color:var(--txt3)">未启用</span>';
+    }
+
+    function activateTab(viewId) {
+      $$('.nav-item, .mobile-nav-item').forEach(n => {
+        n.classList.toggle('active', n.dataset.view === viewId);
+      });
+      $$('.view').forEach(v => {
+        v.classList.toggle('active', v.id === `view-${viewId}`);
+      });
+      if (viewId === 'debug') post('xb-ena:logs-request');
+    }
+
+    function updatePrefixModeUI() {
+      $('ep_custom_prefix_group').classList.toggle('hidden', $('ep_prefix_mode').value !== 'custom');
+    }
+
+    /* ── Type conversion ── */
+
+    function toBool(v, fallback = false) {
+      if (v === true || v === false) return v;
+      if (v === 'true') return true;
+      if (v === 'false') return false;
+      return fallback;
+    }
+
+    function toNum(v, fallback = 0) {
+      const n = Number(v);
+      return Number.isFinite(n) ? n : fallback;
+    }
+
+    function arrToCsv(arr) { return Array.isArray(arr) ? arr.join(', ') : ''; }
+
+    function csvToArr(text) {
+      return String(text || '').split(/[,，]/).map(x => x.trim()).filter(Boolean);
+    }
+    function normalizeKeepTagsInput(text) {
+      const src = csvToArr(text);
+      const out = [];
+      src.forEach(item => {
+        const tag = String(item || '').replace(/^<+|>+$/g, '').toLowerCase();
+        if (!/^[a-z][a-z0-9_-]*$/.test(tag)) return;
+        if (!out.includes(tag)) out.push(tag);
+      });
+      return out;
+    }
+
+    function escapeHtml(str) {
+      return String(str || '').replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
+    }
+
+    /* ── Prompt blocks ── */
+
+    function createPromptBlockElement(block, idx, total) {
+      const wrap = document.createElement('div');
+      wrap.className = 'prompt-block';
+
+      const head = document.createElement('div');
+      head.className = 'prompt-head';
+
+      const left = document.createElement('div');
+      left.className = 'prompt-head-left';
+
+      const nameInput = document.createElement('input');
+      nameInput.type = 'text';
+      nameInput.className = 'input';
+      nameInput.placeholder = '块名称';
+      nameInput.value = block.name || '';
+      nameInput.addEventListener('change', () => { block.name = nameInput.value; scheduleSave(); });
+
+      const roleSelect = document.createElement('select');
+      roleSelect.className = 'input';
+      ['system', 'user', 'assistant'].forEach(r => {
+        const opt = document.createElement('option');
+        opt.value = r;
+        opt.textContent = r;
+        opt.selected = (block.role || 'system') === r;
+        roleSelect.appendChild(opt);
+      });
+      roleSelect.addEventListener('change', () => { block.role = roleSelect.value; scheduleSave(); });
+
+      left.append(nameInput, roleSelect);
+
+      const right = document.createElement('div');
+      right.className = 'prompt-head-right';
+
+      const upBtn = document.createElement('button');
+      upBtn.className = 'btn btn-sm';
+      upBtn.textContent = '↑';
+      upBtn.disabled = idx === 0;
+      upBtn.addEventListener('click', () => {
+        if (idx === 0) return;
+        [cfg.promptBlocks[idx - 1], cfg.promptBlocks[idx]] = [cfg.promptBlocks[idx], cfg.promptBlocks[idx - 1]];
+        renderPromptList(); scheduleSave();
+      });
+
+      const downBtn = document.createElement('button');
+      downBtn.className = 'btn btn-sm';
+      downBtn.textContent = '↓';
+      downBtn.disabled = idx === total - 1;
+      downBtn.addEventListener('click', () => {
+        if (idx >= total - 1) return;
+        [cfg.promptBlocks[idx], cfg.promptBlocks[idx + 1]] = [cfg.promptBlocks[idx + 1], cfg.promptBlocks[idx]];
+        renderPromptList(); scheduleSave();
+      });
+
+      const delBtn = document.createElement('button');
+      delBtn.className = 'btn btn-sm btn-del';
+      delBtn.textContent = '删除';
+      delBtn.addEventListener('click', () => {
+        cfg.promptBlocks.splice(idx, 1);
+        renderPromptList(); scheduleSave();
+      });
+
+      right.append(upBtn, downBtn, delBtn);
+
+      const content = document.createElement('textarea');
+      content.className = 'input';
+      content.placeholder = '提示词内容...';
+      content.value = block.content || '';
+      content.addEventListener('change', () => { block.content = content.value; scheduleSave(); });
+
+      head.append(left, right);
+      wrap.append(head, content);
+      return wrap;
+    }
+
+    function renderPromptList() {
+      const list = $('ep_prompt_list');
+      const empty = $('ep_prompt_empty');
+      const blocks = cfg?.promptBlocks || [];
+      list.innerHTML = '';
+      if (!blocks.length) { empty.style.display = ''; return; }
+      empty.style.display = 'none';
+      blocks.forEach((block, idx) => {
+        list.appendChild(createPromptBlockElement(block, idx, blocks.length));
+      });
+    }
+
+    function renderTemplateSelect(selected = '') {
+      const sel = $('ep_tpl_select');
+      sel.innerHTML = '<option value="">-- 选择模板 --</option>';
+      const names = Object.keys(cfg?.promptTemplates || {});
+      const selectedName = names.includes(selected) ? selected : '';
+      names.forEach(name => {
+        const opt = document.createElement('option');
+        opt.value = name;
+        opt.textContent = name;
+        opt.selected = name === selectedName;
+        sel.appendChild(opt);
+      });
+    }
+
+    /* ── Undo ── */
+
+    function showUndoBar(name, blocks) {
+      clearUndo();
+      undoPending = true;
+      undoState = {
+        name, blocks,
+        timer: setTimeout(() => {
+          hideUndoBar(); undoPending = false; scheduleSave();
+        }, 5000)
+      };
+      $('ep_tpl_undo_name').textContent = name;
+      $('ep_tpl_undo').classList.remove('hidden');
+    }
+
+    function hideUndoBar() {
+      $('ep_tpl_undo').classList.add('hidden');
+      undoState = null;
+    }
+
+    function clearUndo() {
+      if (undoState?.timer) clearTimeout(undoState.timer);
+      hideUndoBar();
+      undoPending = false;
+    }
+
+    /* ── Model selector ── */
+
+    function showModelSelector(models) {
+      fetchedModels = models;
+      const sel = $('ep_model_select');
+      const cur = $('ep_model').value.trim();
+      sel.innerHTML = '<option value="">-- 从列表选择 --</option>';
+      models.forEach(m => {
+        const opt = document.createElement('option');
+        opt.value = m; opt.textContent = m; opt.selected = m === cur;
+        sel.appendChild(opt);
+      });
+      $('ep_model_selector').classList.remove('hidden');
+    }
+
+    /* ── Logs ── */
+
+    function renderLogs() {
+      const body = $('ep_log_body');
+      if (!Array.isArray(logs) || !logs.length) {
+        body.innerHTML = '<div class="log-empty">暂无日志</div>';
+        return;
+      }
+      body.innerHTML = logs.map(item => {
+        const time = item.time ? new Date(item.time).toLocaleString() : '-';
+        const cls = item.ok ? 'success' : 'error';
+        const label = item.ok ? '成功' : '失败';
+
+        // Format request messages: one card per message with role label
+        let msgHtml = '';
+        if (Array.isArray(item.requestMessages) && item.requestMessages.length) {
+          msgHtml = item.requestMessages.map((m, i) => {
+            const role = escapeHtml(m.role || 'unknown');
+            const roleClass = role === 'system' ? 'msg-system' : role === 'user' ? 'msg-user' : 'msg-assistant';
+            const content = escapeHtml(m.content || '');
+            return `<div class="msg-card ${roleClass}">
+              <div class="msg-role">[${i + 1}] ${role}</div>
+              <pre class="msg-content">${content}</pre>
+            </div>`;
+          }).join('');
+        } else {
+          msgHtml = '<div class="log-empty">无消息</div>';
+        }
+
+        return `
+        <div class="log-item">
+          <div class="log-meta">
+            <span>${escapeHtml(time)} · <span class="${cls}">${label}</span></span>
+            <span>${escapeHtml(item.model || '-')}</span>
+          </div>
+          ${item.error ? `<div class="log-error">${escapeHtml(item.error)}</div>` : ''}
+          <details><summary>请求消息 (${(item.requestMessages || []).length} 条)</summary>
+            <div class="msg-list">${msgHtml}</div>
+          </details>
+          <details><summary>原始回复</summary>
+            <pre class="log-pre">${escapeHtml(item.rawReply || '')}</pre>
+          </details>
+          <details open><summary>过滤后回复</summary>
+            <pre class="log-pre">${escapeHtml(item.filteredReply || '')}</pre>
+          </details>
+        </div>`;
+      }).join('');
+    }
+
+    /* ── Apply / Collect ── */
+
+    function applyConfig(nextCfg) {
+      cfg = nextCfg || {};
+      logs = Array.isArray(cfg.logs) ? cfg.logs : [];
+
+      $('ep_enabled').value = String(toBool(cfg.enabled, true));
+      $('ep_skip_plot').value = String(toBool(cfg.skipIfPlotPresent, true));
+
+      const api = cfg.api || {};
+      $('ep_api_channel').value = api.channel || 'openai';
+      $('ep_prefix_mode').value = api.prefixMode || 'auto';
+      $('ep_api_base').value = api.baseUrl || '';
+      $('ep_prefix_custom').value = api.customPrefix || '';
+      $('ep_api_key').value = api.apiKey || '';
+      $('ep_model').value = api.model || '';
+      $('ep_stream').value = String(toBool(api.stream, false));
+      $('ep_temp').value = String(toNum(api.temperature, 1));
+      $('ep_top_p').value = String(toNum(api.top_p, 1));
+      $('ep_top_k').value = String(toNum(api.top_k, 0));
+      $('ep_pp').value = api.presence_penalty ?? '';
+      $('ep_fp').value = api.frequency_penalty ?? '';
+      $('ep_mt').value = api.max_tokens ?? '';
+
+      $('ep_include_global_wb').value = String(toBool(cfg.includeGlobalWorldbooks, false));
+      $('ep_wb_pos4').value = String(toBool(cfg.excludeWorldbookPosition4, true));
+      $('ep_wb_exclude_names').value = arrToCsv(cfg.worldbookExcludeNames);
+      $('ep_plot_n').value = String(toNum(cfg.plotCount, 2));
+      $('ep_keep_tags').value = arrToCsv(cfg.responseKeepTags || ['plot', 'note', 'plot-log', 'state']);
+      $('ep_exclude_tags').value = arrToCsv(cfg.chatExcludeTags);
+
+      $('ep_logs_persist').value = String(toBool(cfg.logsPersist, true));
+      $('ep_logs_max').value = String(toNum(cfg.logsMax, 20));
+
+      setBadge(toBool(cfg.enabled, true));
+      updatePrefixModeUI();
+      const keepSelectedTemplate = cfg?.activePromptTemplate || $('ep_tpl_select')?.value || '';
+      renderTemplateSelect(keepSelectedTemplate);
+      renderPromptList();
+      renderLogs();
+    }
+
+    function collectPatch() {
+      const p = {};
+
+      p.enabled = toBool($('ep_enabled').value, true);
+      p.skipIfPlotPresent = toBool($('ep_skip_plot').value, true);
+
+      p.api = {
+        channel: $('ep_api_channel').value,
+        prefixMode: $('ep_prefix_mode').value,
+        baseUrl: $('ep_api_base').value.trim(),
+        customPrefix: $('ep_prefix_custom').value.trim(),
+        apiKey: $('ep_api_key').value,
+        model: $('ep_model').value.trim(),
+        stream: toBool($('ep_stream').value, false),
+        temperature: toNum($('ep_temp').value, 1),
+        top_p: toNum($('ep_top_p').value, 1),
+        top_k: Math.floor(toNum($('ep_top_k').value, 0)),
+        presence_penalty: $('ep_pp').value.trim(),
+        frequency_penalty: $('ep_fp').value.trim(),
+        max_tokens: $('ep_mt').value.trim()
+      };
+
+      p.includeGlobalWorldbooks = toBool($('ep_include_global_wb').value, false);
+      p.excludeWorldbookPosition4 = toBool($('ep_wb_pos4').value, true);
+      p.worldbookExcludeNames = csvToArr($('ep_wb_exclude_names').value);
+      p.plotCount = Math.max(0, Math.floor(toNum($('ep_plot_n').value, 2)));
+      p.responseKeepTags = normalizeKeepTagsInput($('ep_keep_tags').value);
+      p.chatExcludeTags = csvToArr($('ep_exclude_tags').value);
+
+      p.logsPersist = toBool($('ep_logs_persist').value, true);
+      p.logsMax = Math.max(1, Math.min(200, Math.floor(toNum($('ep_logs_max').value, 20))));
+
+      p.promptBlocks = cfg?.promptBlocks || [];
+      p.promptTemplates = cfg?.promptTemplates || {};
+      p.activePromptTemplate = $('ep_tpl_select')?.value || '';
+
+      return p;
+    }
+
+    /* ── Event bindings ── */
+
+    function bindEvents() {
+      $$('.nav-item, .mobile-nav-item').forEach(item => {
+        item.addEventListener('click', () => activateTab(item.dataset.view));
+      });
+
+      $('ep_close').addEventListener('click', () => post('xb-ena:close'));
+
+      $('ep_enabled').addEventListener('change', () => setBadge(toBool($('ep_enabled').value, true)));
+
+      $('ep_run_test').addEventListener('click', () => {
+        const text = $('ep_test_input').value.trim() || '（测试输入）我想让你帮我规划下一步剧情。';
+        post('xb-ena:run-test', { text });
+        setLocalStatus('ep_test_status', '测试中…', 'loading');
+      });
+
+      $('ep_toggle_key').addEventListener('click', () => {
+        const input = $('ep_api_key');
+        const btn = $('ep_toggle_key');
+        if (input.type === 'password') {
+          input.type = 'text'; btn.textContent = '隐藏';
+        } else {
+          input.type = 'password'; btn.textContent = '显示';
+        }
+      });
+
+      $('ep_prefix_mode').addEventListener('change', updatePrefixModeUI);
+
+      $('ep_fetch_models').addEventListener('click', () => {
+        post('xb-ena:fetch-models');
+        setLocalStatus('ep_api_status', '拉取中…', 'loading');
+      });
+      $('ep_test_conn').addEventListener('click', () => {
+        post('xb-ena:fetch-models');
+        setLocalStatus('ep_api_status', '测试中…', 'loading');
+      });
+
+      $('ep_model_select').addEventListener('change', () => {
+        const val = $('ep_model_select').value;
+        if (val) { $('ep_model').value = val; scheduleSave(); }
+      });
+      $('ep_keep_tags').addEventListener('change', () => {
+        const normalized = normalizeKeepTagsInput($('ep_keep_tags').value);
+        $('ep_keep_tags').value = normalized.join(', ');
+      });
+
+      $('ep_add_prompt').addEventListener('click', () => {
+        cfg.promptBlocks = cfg.promptBlocks || [];
+        cfg.promptBlocks.push({ id: genId(), role: 'system', name: '新块', content: '' });
+        renderPromptList(); scheduleSave();
+      });
+
+      $('ep_reset_prompt').addEventListener('click', () => {
+        if (!confirm('确定恢复默认提示词块？当前提示词块将被覆盖。')) return;
+        if (pendingSave) return;
+        const requestId = `ena_reset_${Date.now()}`;
+        startPendingSave(requestId);
+        post('xb-ena:reset-prompt-default', { requestId });
+      });
+
+      $('ep_tpl_select').addEventListener('change', () => {
+        const name = $('ep_tpl_select').value;
+        cfg.activePromptTemplate = name;
+        if (!name) return;
+        const blocks = cfg?.promptTemplates?.[name];
+        if (!Array.isArray(blocks)) return;
+        cfg.promptBlocks = structuredClone(blocks);
+        renderPromptList(); scheduleSave();
+      });
+
+      $('ep_tpl_save').addEventListener('click', () => {
+        const name = $('ep_tpl_select').value;
+        if (!name) { setSaveIndicator('error', '请先选择或创建模板'); return; }
+        cfg.promptTemplates = cfg.promptTemplates || {};
+        cfg.promptTemplates[name] = structuredClone(cfg.promptBlocks || []);
+        cfg.activePromptTemplate = name;
+        renderTemplateSelect(name); scheduleSave();
+      });
+
+      $('ep_tpl_saveas').addEventListener('click', () => {
+        const name = prompt('新模板名称');
+        if (!name) return;
+        cfg.promptTemplates = cfg.promptTemplates || {};
+        cfg.promptTemplates[name] = structuredClone(cfg.promptBlocks || []);
+        cfg.activePromptTemplate = name;
+        renderTemplateSelect(name); scheduleSave();
+      });
+
+      $('ep_tpl_delete').addEventListener('click', () => {
+        const name = $('ep_tpl_select').value;
+        if (!name) return;
+        const backup = structuredClone(cfg.promptTemplates[name]);
+        delete cfg.promptTemplates[name];
+        cfg.activePromptTemplate = '';
+        renderTemplateSelect('');
+        showUndoBar(name, backup);
+      });
+
+      $('ep_tpl_undo_btn').addEventListener('click', () => {
+        if (!undoState) return;
+        cfg.promptTemplates = cfg.promptTemplates || {};
+        cfg.promptTemplates[undoState.name] = undoState.blocks;
+        cfg.activePromptTemplate = undoState.name;
+        renderTemplateSelect(undoState.name);
+        clearUndo(); scheduleSave();
+      });
+
+      $('ep_debug_worldbook').addEventListener('click', () => {
+        $('ep_debug_output').classList.add('visible');
+        $('ep_debug_output').textContent = '诊断中…';
+        post('xb-ena:debug-worldbook');
+      });
+      $('ep_debug_char').addEventListener('click', () => {
+        $('ep_debug_output').classList.add('visible');
+        $('ep_debug_output').textContent = '诊断中…';
+        post('xb-ena:debug-char');
+      });
+      $('ep_test_planner').addEventListener('click', () => {
+        post('xb-ena:run-test', { text: '（测试输入）请规划下一步剧情走向。' });
+        $('ep_debug_output').classList.add('visible');
+        $('ep_debug_output').textContent = '规划测试中…';
+      });
+
+      $('ep_open_logs').addEventListener('click', () => post('xb-ena:logs-request'));
+      $('ep_log_clear').addEventListener('click', () => {
+        if (!confirm('确定清空所有日志？')) return;
+        post('xb-ena:logs-clear');
+      });
+      $('ep_log_export').addEventListener('click', () => {
+        const blob = new Blob([JSON.stringify(logs || [], null, 2)], { type: 'application/json' });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url; a.download = `ena-planner-logs-${Date.now()}.json`;
+        a.click(); URL.revokeObjectURL(url);
+      });
+
+      document.querySelectorAll('.card .input').forEach(el => {
+        if (el.closest('.prompt-block')) return;
+        if (el.id === 'ep_test_input') return;
+        el.addEventListener('change', scheduleSave);
+      });
+    }
+
+    /* ── Message handler ── */
+
+    window.addEventListener('message', ev => {
+      if (ev.origin !== PARENT_ORIGIN) return;
+      const { type, payload } = ev.data || {};
+
+      switch (type) {
+        case 'xb-ena:config':
+          applyConfig(payload || {});
+          break;
+        case 'xb-ena:config-saved':
+          applyConfig(payload || {});
+          resolvePendingSave(payload?.requestId || '');
+          break;
+        case 'xb-ena:config-save-error':
+          rejectPendingSave(payload?.requestId || '', payload?.message);
+          break;
+        case 'xb-ena:test-done': {
+          setLocalStatus('ep_test_status', '规划测试完成', 'success');
+          const d = $('ep_debug_output');
+          if (d.classList.contains('visible') && d.textContent.includes('测试中'))
+            d.textContent = '测试完成，请查看下方日志';
+          break;
+        }
+        case 'xb-ena:test-error': {
+          const msg = payload?.message || '规划测试失败';
+          setLocalStatus('ep_test_status', msg, 'error');
+          const d = $('ep_debug_output');
+          if (d.classList.contains('visible')) d.textContent = '测试失败: ' + msg;
+          break;
+        }
+        case 'xb-ena:logs':
+          logs = Array.isArray(payload?.logs) ? payload.logs : [];
+          renderLogs();
+          break;
+        case 'xb-ena:models': {
+          const models = Array.isArray(payload?.models) ? payload.models : [];
+          if (models.length) {
+            showModelSelector(models);
+            setLocalStatus('ep_api_status', `获取到 ${models.length} 个模型`, 'success');
+          } else {
+            setLocalStatus('ep_api_status', '未获取到模型', 'error');
+          }
+          break;
+        }
+        case 'xb-ena:models-error':
+          setLocalStatus('ep_api_status', payload?.message || '拉取模型失败', 'error');
+          break;
+        case 'xb-ena:debug-output': {
+          const out = $('ep_debug_output');
+          out.classList.add('visible');
+          out.textContent = String(payload?.output || '');
+          break;
+        }
+      }
+    });
+
+    /* ── Init ── */
+
+    bindEvents();
+    post('xb-ena:ready');
+  </script>
+</body>
+
+</html>
diff --git a/ena-planner/ena-planner.js b/ena-planner/ena-planner.js
new file mode 100644
index 0000000..106fc3f
--- /dev/null
+++ b/ena-planner/ena-planner.js
@@ -0,0 +1,1517 @@
+import { extension_settings } from '../../../../extensions.js';
+import { getRequestHeaders, saveSettingsDebounced, substituteParamsExtended } from '../../../../../script.js';
+import { EnaPlannerStorage, migrateFromLWBIfNeeded } from './ena-planner-storage.js';
+import { DEFAULT_PROMPT_BLOCKS, BUILTIN_TEMPLATES } from './ena-planner-presets.js';
+import jsyaml from '../vendor/js-yaml.mjs';
+
+const EXT_NAME = 'ena-planner';
+const OVERLAY_ID = 'xiaobaix-ena-planner-overlay';
+const VECTOR_RECALL_TIMEOUT_MS = 15000;
+const PLANNER_REQUEST_TIMEOUT_MS = 90000;
+const _currentModuleUrl = import.meta.url;
+
+let _bmeRuntime = null;
+
+function getTrustedOrigin() { return window.location.origin; }
+
+function postToIframe(iframe, payload) {
+    if (!iframe?.contentWindow) return false;
+    iframe.contentWindow.postMessage(payload, getTrustedOrigin());
+    return true;
+}
+
+function isTrustedIframeEvent(event, iframe) {
+    return !!iframe && event.origin === getTrustedOrigin()
+        && event.source === iframe.contentWindow;
+}
+
+function getPluginBasePath() {
+    try {
+        const url = new URL(_currentModuleUrl);
+        const parts = url.pathname.split('/');
+        const idx = parts.lastIndexOf('ena-planner');
+        if (idx > 0) {
+            return parts.slice(0, idx).join('/');
+        }
+    } catch { }
+    return _bmeRuntime?.getExtensionPath?.()
+        || 'scripts/extensions/third-party/ST-Bionic-Memory-Ecology-main';
+}
+
+function getHtmlPath() {
+    return `${getPluginBasePath()}/ena-planner/ena-planner.html`;
+}
+
+/**
+ * -------------------------
+ * Default settings
+ * --------------------------
+ */
+function getDefaultSettings() {
+    return {
+        enabled: true,
+        skipIfPlotPresent: true,
+
+        // Chat history: tags to strip from AI responses (besides <think>)
+        chatExcludeTags: ['行动选项', 'UpdateVariable', 'StatusPlaceHolderImpl'],
+
+        // Worldbook: always read character-linked lorebooks by default
+        // User can also opt-in to include global worldbooks
+        includeGlobalWorldbooks: false,
+        excludeWorldbookPosition4: true,
+        // Worldbook entry names containing these strings will be excluded
+        worldbookExcludeNames: ['mvu_update'],
+
+        // Plot extraction
+        plotCount: 2,
+        // Planner response tags to keep, in source order (empty = keep full response)
+        responseKeepTags: ['plot', 'note', 'plot-log', 'state'],
+
+        // Planner prompts (designer)
+        promptBlocks: structuredClone(DEFAULT_PROMPT_BLOCKS),
+        // Saved prompt templates: { name: promptBlocks[] }
+        promptTemplates: structuredClone(BUILTIN_TEMPLATES),
+        // Currently selected prompt template name in UI
+        activePromptTemplate: '',
+
+        // Planner API
+        api: {
+            channel: 'openai',
+            baseUrl: '',
+            prefixMode: 'auto',
+            customPrefix: '',
+            apiKey: '',
+            model: '',
+            stream: true,
+            temperature: 1,
+            top_p: 1,
+            top_k: 0,
+            presence_penalty: '',
+            frequency_penalty: '',
+            max_tokens: ''
+        },
+
+        // Logs
+        logsPersist: true,
+        logsMax: 20
+    };
+}
+
+/**
+ * -------------------------
+ * Local state
+ * --------------------------
+ */
+const state = {
+    isPlanning: false,
+    bypassNextSend: false,
+    lastInjectedText: '',
+    logs: []
+};
+
+let config = null;
+let overlay = null;
+let iframeMessageBound = false;
+let sendListenersInstalled = false;
+let sendClickHandler = null;
+let sendKeydownHandler = null;
+
+/**
+ * -------------------------
+ * Helpers
+ * --------------------------
+ */
+function ensureSettings() {
+    const d = getDefaultSettings();
+    const s = config || structuredClone(d);
+
+    function deepMerge(target, src) {
+        for (const k of Object.keys(src)) {
+            if (src[k] && typeof src[k] === 'object' && !Array.isArray(src[k])) {
+                target[k] = target[k] ?? {};
+                deepMerge(target[k], src[k]);
+            } else if (target[k] === undefined) {
+                target[k] = src[k];
+            }
+        }
+    }
+    deepMerge(s, d);
+    if (!Array.isArray(s.responseKeepTags)) s.responseKeepTags = structuredClone(d.responseKeepTags);
+    else s.responseKeepTags = normalizeResponseKeepTags(s.responseKeepTags);
+
+    // Migration: remove old keys that are no longer needed
+    delete s.includeCharacterLorebooks;
+    delete s.includeCharDesc;
+    delete s.includeCharPersonality;
+    delete s.includeCharScenario;
+    delete s.includeVectorRecall;
+    delete s.historyMessageCount;
+    delete s.worldbookActivationMode;
+
+    config = s;
+    return s;
+}
+
+function normalizeResponseKeepTags(tags) {
+    const src = Array.isArray(tags) ? tags : [];
+    const cleaned = [];
+    for (const raw of src) {
+        const t = String(raw || '')
+            .trim()
+            .replace(/^<+|>+$/g, '')
+            .toLowerCase();
+        if (!/^[a-z][a-z0-9_-]*$/.test(t)) continue;
+        if (!cleaned.includes(t)) cleaned.push(t);
+    }
+    return cleaned;
+}
+
+async function loadConfig() {
+    const loaded = await EnaPlannerStorage.get('config', null);
+    config = (loaded && typeof loaded === 'object') ? loaded : getDefaultSettings();
+    ensureSettings();
+    state.logs = Array.isArray(await EnaPlannerStorage.get('logs', [])) ? await EnaPlannerStorage.get('logs', []) : [];
+
+    if (extension_settings?.[EXT_NAME]) {
+        delete extension_settings[EXT_NAME];
+        saveSettingsDebounced?.();
+    }
+    return config;
+}
+
+async function saveConfigNow() {
+    ensureSettings();
+    await EnaPlannerStorage.set('config', config);
+    await EnaPlannerStorage.set('logs', state.logs);
+    try {
+        return await EnaPlannerStorage.saveNow({ silent: false });
+    } catch {
+        return false;
+    }
+}
+
+function toastInfo(msg) {
+    if (window.toastr?.info) return window.toastr.info(msg);
+    console.log('[EnaPlanner]', msg);
+}
+function toastErr(msg) {
+    if (window.toastr?.error) return window.toastr.error(msg);
+    console.error('[EnaPlanner]', msg);
+}
+
+function clampLogs() {
+    const s = ensureSettings();
+    if (state.logs.length > s.logsMax) state.logs = state.logs.slice(0, s.logsMax);
+}
+
+function persistLogsMaybe() {
+    const s = ensureSettings();
+    if (!s.logsPersist) return;
+    state.logs = state.logs.slice(0, s.logsMax);
+    EnaPlannerStorage.set('logs', state.logs).catch(() => {});
+}
+
+function loadPersistedLogsMaybe() {
+    const s = ensureSettings();
+    if (!s.logsPersist) state.logs = [];
+}
+
+function nowISO() {
+    return new Date().toISOString();
+}
+
+function runWithTimeout(taskFactory, timeoutMs, timeoutMessage) {
+    return new Promise((resolve, reject) => {
+        const timer = setTimeout(() => reject(new Error(timeoutMessage)), timeoutMs);
+        Promise.resolve()
+            .then(taskFactory)
+            .then(resolve)
+            .catch(reject)
+            .finally(() => clearTimeout(timer));
+    });
+}
+
+function normalizeUrlBase(u) {
+    if (!u) return '';
+    return u.replace(/\/+$/g, '');
+}
+
+function getDefaultPrefixByChannel(channel) {
+    if (channel === 'gemini') return '/v1beta';
+    return '/v1';
+}
+
+function buildApiPrefix() {
+    const s = ensureSettings();
+    if (s.api.prefixMode === 'custom' && s.api.customPrefix?.trim()) return s.api.customPrefix.trim();
+    return getDefaultPrefixByChannel(s.api.channel);
+}
+
+function buildUrl(path) {
+    const s = ensureSettings();
+    const base = normalizeUrlBase(s.api.baseUrl);
+    const prefix = buildApiPrefix();
+    const p = prefix.startsWith('/') ? prefix : `/${prefix}`;
+    const finalPrefix = p.replace(/\/+$/g, '');
+    const finalPath = path.startsWith('/') ? path : `/${path}`;
+    const escapedPrefix = finalPrefix.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+    const hasSameSuffix = !!finalPrefix && new RegExp(`${escapedPrefix}$`, 'i').test(base);
+    const normalizedBase = hasSameSuffix ? base.slice(0, -finalPrefix.length) : base;
+    return `${normalizedBase}${finalPrefix}${finalPath}`;
+}
+
+function setSendUIBusy(busy) {
+    const sendBtn = document.getElementById('send_but') || document.getElementById('send_button');
+    const textarea = document.getElementById('send_textarea');
+    if (sendBtn) sendBtn.disabled = !!busy;
+    if (textarea) textarea.disabled = !!busy;
+}
+
+function safeStringify(val) {
+    if (val == null) return '';
+    if (typeof val === 'string') return val;
+    try { return JSON.stringify(val, null, 2); } catch { return String(val); }
+}
+
+/**
+ * -------------------------
+ * ST context helpers
+ * --------------------------
+ */
+function getContextSafe() {
+    try { return window.SillyTavern?.getContext?.() ?? null; } catch { return null; }
+}
+
+function getCurrentCharSafe() {
+    try {
+        // Method 1: via getContext()
+        const ctx = getContextSafe();
+        if (ctx) {
+            const cid = ctx.characterId ?? ctx.this_chid;
+            const chars = ctx.characters;
+            if (chars && cid != null && chars[cid]) return chars[cid];
+        }
+        // Method 2: global this_chid + characters
+        const st = window.SillyTavern;
+        if (st) {
+            const chid = st.this_chid ?? window.this_chid;
+            const chars = st.characters ?? window.characters;
+            if (chars && chid != null && chars[chid]) return chars[chid];
+        }
+        // Method 3: bare globals (some ST versions)
+        if (window.this_chid != null && window.characters) {
+            return window.characters[window.this_chid] ?? null;
+        }
+    } catch { }
+    return null;
+}
+
+/**
+ * -------------------------
+ * Character card — always include desc/personality/scenario
+ * --------------------------
+ */
+function formatCharCardBlock(charObj) {
+    if (!charObj) return '';
+    const name = charObj?.name ?? '';
+    const description = charObj?.description ?? '';
+    const personality = charObj?.personality ?? '';
+    const scenario = charObj?.scenario ?? '';
+
+    const parts = [];
+    parts.push(`【角色卡】${name}`.trim());
+    if (description) parts.push(`【description】\n${description}`);
+    if (personality) parts.push(`【personality】\n${personality}`);
+    if (scenario) parts.push(`【scenario】\n${scenario}`);
+    return parts.join('\n\n');
+}
+
+/**
+ * -------------------------
+ * Chat history — ALL unhidden, AI responses ONLY
+ * Strip: unclosed think blocks, configurable tags
+ * --------------------------
+ */
+function cleanAiMessageText(text) {
+    let out = String(text ?? '');
+
+    // 1) Strip everything before and including </think> (handles unclosed think blocks)
+    out = out.replace(/^[\s\S]*?<\/think>/i, '');
+    out = out.replace(/<think\b[^>]*>[\s\S]*?<\/think>/gi, '');
+    out = out.replace(/<thinking\b[^>]*>[\s\S]*?<\/thinking>/gi, '');
+
+    // 2) Strip user-configured exclude tags
+    //    NOTE: JS \b does NOT work after CJK characters, so we use [^>]*> instead.
+    //    Order matters: try block match first (greedy), then mop up orphan open/close tags.
+    const s = ensureSettings();
+    const tags = s.chatExcludeTags ?? [];
+    for (const tag of tags) {
+        if (!tag) continue;
+        const escaped = tag.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+        // First: match full block <tag ...>...</tag>
+        const blockRe = new RegExp(`<${escaped}[^>]*>[\\s\\S]*?<\\/${escaped}>`, 'gi');
+        out = out.replace(blockRe, '');
+        // Then: mop up any orphan closing tags </tag>
+        const closeRe = new RegExp(`<\\/${escaped}>`, 'gi');
+        out = out.replace(closeRe, '');
+        // Finally: mop up orphan opening or self-closing tags <tag ...> or <tag/>
+        const openRe = new RegExp(`<${escaped}(?:[^>]*)\\/?>`, 'gi');
+        out = out.replace(openRe, '');
+    }
+
+    return out.trim();
+}
+
+function collectRecentChatSnippet(chat, maxMessages) {
+    if (!Array.isArray(chat) || chat.length === 0) return '';
+
+    // Filter: not system, not hidden, and NOT user messages (AI only)
+    const aiMessages = chat.filter(m =>
+        !m?.is_system && !m?.is_user && !m?.extra?.hidden
+    );
+
+    if (!aiMessages.length) return '';
+
+    // If maxMessages specified, only take the last N
+    const selected = (maxMessages && maxMessages > 0)
+        ? aiMessages.slice(-maxMessages)
+        : aiMessages;
+
+    const lines = [];
+    for (const m of selected) {
+        const name = m?.name ? `${m.name}` : 'assistant';
+        const raw = (m?.mes ?? '').trim();
+        if (!raw) continue;
+        const cleaned = cleanAiMessageText(raw);
+        if (!cleaned) continue;
+        lines.push(`[${name}] ${cleaned}`);
+    }
+
+    if (!lines.length) return '';
+    return `<chat_history>\n${lines.join('\n')}\n</chat_history>`;
+}
+
+/**
+ * -------------------------
+ * Plot extraction
+ * --------------------------
+ */
+function extractLastNPlots(chat, n) {
+    if (!Array.isArray(chat) || chat.length === 0) return [];
+    const want = Math.max(0, Number(n) || 0);
+    if (!want) return [];
+
+    const plots = [];
+    const plotRe = /<plot\b[^>]*>[\s\S]*?<\/plot>/gi;
+
+    for (let i = chat.length - 1; i >= 0; i--) {
+        const text = chat[i]?.mes ?? '';
+        if (!text) continue;
+        const matches = [...text.matchAll(plotRe)];
+        for (let j = matches.length - 1; j >= 0; j--) {
+            plots.push(matches[j][0]);
+            if (plots.length >= want) return plots;
+        }
+    }
+    return plots;
+}
+
+function formatPlotsBlock(plotList) {
+    if (!Array.isArray(plotList) || plotList.length === 0) return '';
+    // plotList is [newest, ..., oldest] from extractLastNPlots
+    // Reverse to chronological: oldest first, newest last
+    const chrono = [...plotList].reverse();
+    const lines = [];
+    chrono.forEach((p, idx) => {
+        lines.push(`【plot -${chrono.length - idx}】\n${p}`);
+    });
+    return `<previous_plots>\n${lines.join('\n\n')}\n</previous_plots>`;
+}
+
+/**
+ * -------------------------
+ * Worldbook — read via ST API (like idle-watcher)
+ * Always read character-linked worldbooks.
+ * Optionally include global worldbooks.
+ * Activation: constant (blue) + keyword scan (green) only.
+ * --------------------------
+ */
+
+async function getCharacterWorldbooks() {
+    const ctx = getContextSafe();
+    const charObj = getCurrentCharSafe();
+    const worldNames = [];
+
+    // From character object (multiple paths)
+    if (charObj) {
+        const paths = [
+            charObj?.data?.extensions?.world,
+            charObj?.world,
+            charObj?.data?.character_book?.name,
+        ];
+        for (const w of paths) {
+            if (w && !worldNames.includes(w)) worldNames.push(w);
+        }
+    }
+
+    // From context
+    if (ctx) {
+        try {
+            const cid = ctx.characterId ?? ctx.this_chid;
+            const chars = ctx.characters ?? window.characters;
+            if (chars && cid != null) {
+                const c = chars[cid];
+                const paths = [
+                    c?.data?.extensions?.world,
+                    c?.world,
+                ];
+                for (const w of paths) {
+                    if (w && !worldNames.includes(w)) worldNames.push(w);
+                }
+            }
+        } catch { }
+
+        // ST context may expose chat-linked worldbooks via world_names
+        try {
+            if (ctx.worldNames && Array.isArray(ctx.worldNames)) {
+                for (const w of ctx.worldNames) {
+                    if (w && !worldNames.includes(w)) worldNames.push(w);
+                }
+            }
+        } catch { }
+    }
+
+    // Fallback: try ST's selected character world info
+    try {
+        const sw = window.selected_world_info;
+        if (typeof sw === 'string' && sw && !worldNames.includes(sw)) {
+            worldNames.push(sw);
+        }
+    } catch { }
+
+    // Fallback: try reading from chat metadata
+    try {
+        const chat = ctx?.chat ?? [];
+        if (chat.length > 0 && chat[0]?.extra?.world) {
+            const w = chat[0].extra.world;
+            if (!worldNames.includes(w)) worldNames.push(w);
+        }
+    } catch { }
+
+    console.log('[EnaPlanner] Character worldbook names found:', worldNames);
+    return worldNames.filter(Boolean);
+}
+
+async function getGlobalWorldbooks() {
+    // Try to get the list of currently active global worldbooks
+    try {
+        // ST stores active worldbooks in world_info settings
+        const ctx = getContextSafe();
+        if (ctx?.world_info?.globalSelect) {
+            return Array.isArray(ctx.world_info.globalSelect) ? ctx.world_info.globalSelect : [];
+        }
+    } catch { }
+
+    // Fallback: try window.selected_world_info
+    try {
+        if (window.selected_world_info && Array.isArray(window.selected_world_info)) {
+            return window.selected_world_info;
+        }
+    } catch { }
+
+    return [];
+}
+
+async function getWorldbookData(worldName) {
+    if (!worldName) return null;
+    try {
+        const response = await fetch('/api/worldinfo/get', {
+            method: 'POST',
+            headers: getRequestHeaders(),
+            body: JSON.stringify({ name: worldName }),
+        });
+        if (response.ok) {
+            const data = await response.json();
+            // ST returns { entries: {...} } or { entries: [...] }
+            let entries = data?.entries;
+            if (entries && !Array.isArray(entries)) {
+                entries = Object.values(entries);
+            }
+            return { name: worldName, entries: entries || [] };
+        }
+    } catch (e) {
+        console.warn(`[EnaPlanner] Failed to load worldbook "${worldName}":`, e);
+    }
+    return null;
+}
+
+function keywordPresent(text, kw) {
+    if (!kw) return false;
+    return text.toLowerCase().includes(kw.toLowerCase());
+}
+
+function matchSelective(entry, scanText) {
+    const keys = Array.isArray(entry?.key) ? entry.key.filter(Boolean) : [];
+    const keys2 = Array.isArray(entry?.keysecondary) ? entry.keysecondary.filter(Boolean) : [];
+
+    const total = keys.length;
+    if (total === 0) return false;
+    const hit = keys.reduce((acc, kw) => acc + (keywordPresent(scanText, kw) ? 1 : 0), 0);
+
+    let ok = false;
+    const logic = entry?.selectiveLogic ?? 0;
+    if (logic === 0) ok = (total === 0) ? true : hit > 0;       // and_any
+    else if (logic === 1) ok = (total === 0) ? true : hit < total; // not_all
+    else if (logic === 2) ok = (total === 0) ? true : hit === 0;  // not_any
+    else if (logic === 3) ok = (total === 0) ? true : hit === total; // and_all
+
+    if (!ok) return false;
+
+    if (keys2.length) {
+        const hit2 = keys2.reduce((acc, kw) => acc + (keywordPresent(scanText, kw) ? 1 : 0), 0);
+        if (hit2 <= 0) return false;
+    }
+    return true;
+}
+
+function sortWorldEntries(entries) {
+    // Sort to mimic ST insertion order within our worldbook block.
+    // Position priority: 0 (before char def) → 1 (after char def) → 4 (system depth)
+    // Within pos=4: depth descending (bigger depth = further from chat = earlier)
+    // Same position+depth: order ascending (higher order = closer to chat_history = later)
+    const posPriority = { 0: 0, 1: 1, 2: 2, 3: 3, 4: 4 };
+    return [...entries].sort((a, b) => {
+        const pa = posPriority[Number(a?.position ?? 0)] ?? 99;
+        const pb = posPriority[Number(b?.position ?? 0)] ?? 99;
+        if (pa !== pb) return pa - pb;
+        // For same position (especially pos=4): bigger depth = earlier
+        const da = Number(a?.depth ?? 0);
+        const db = Number(b?.depth ?? 0);
+        if (da !== db) return db - da;
+        // Same position+depth: order ascending (smaller order first, bigger order later)
+        const oa = Number(a?.order ?? 0);
+        const ob = Number(b?.order ?? 0);
+        return oa - ob;
+    });
+}
+
+async function buildWorldbookBlock(scanText) {
+    const s = ensureSettings();
+
+    // 1. Always get character-linked worldbooks
+    const charWorldNames = await getCharacterWorldbooks();
+
+    // 2. Optionally get global worldbooks
+    let globalWorldNames = [];
+    if (s.includeGlobalWorldbooks) {
+        globalWorldNames = await getGlobalWorldbooks();
+    }
+
+    // Deduplicate
+    const allWorldNames = [...new Set([...charWorldNames, ...globalWorldNames])];
+
+    if (!allWorldNames.length) {
+        console.log('[EnaPlanner] No worldbooks to load');
+        return '';
+    }
+
+    console.log('[EnaPlanner] Loading worldbooks:', allWorldNames);
+
+    // Fetch all worldbook data
+    const worldbookResults = await Promise.all(allWorldNames.map(name => getWorldbookData(name)));
+    const allEntries = [];
+
+    for (const wb of worldbookResults) {
+        if (!wb || !wb.entries) continue;
+        for (const entry of wb.entries) {
+            if (!entry) continue;
+            allEntries.push({ ...entry, _worldName: wb.name });
+        }
+    }
+
+    // Filter: not disabled
+    let entries = allEntries.filter(e => !e?.disable && !e?.disabled);
+
+    // Filter: exclude entries whose name contains any of the configured exclude patterns
+    const nameExcludes = s.worldbookExcludeNames ?? ['mvu_update'];
+    entries = entries.filter(e => {
+        const comment = String(e?.comment || e?.name || e?.title || '');
+        for (const pat of nameExcludes) {
+            if (pat && comment.includes(pat)) return false;
+        }
+        return true;
+    });
+
+    // Filter: exclude position=4 if configured
+    if (s.excludeWorldbookPosition4) {
+        entries = entries.filter(e => Number(e?.position) !== 4);
+    }
+
+    if (!entries.length) return '';
+
+    // Activation: constant (blue) + keyword scan (green) only
+    const active = [];
+    for (const e of entries) {
+        // Blue light: constant entries always included
+        if (e?.constant) {
+            active.push(e);
+            continue;
+        }
+        // Green light: keyword-triggered entries
+        if (matchSelective(e, scanText)) {
+            active.push(e);
+            continue;
+        }
+    }
+
+    if (!active.length) return '';
+
+    // Build EJS context for rendering worldbook templates
+    const ejsCtx = buildEjsContext();
+
+    const sorted = sortWorldEntries(active);
+    const parts = [];
+    for (const e of sorted) {
+        const comment = e?.comment || e?.name || e?.title || '';
+        const head = `【WorldBook:${e._worldName}】${comment ? ' ' + comment : ''}`.trim();
+        let body = String(e?.content ?? '').trim();
+        if (!body) continue;
+
+        // Try EJS rendering if the entry contains EJS tags
+        if (body.includes('<%')) {
+            body = renderEjsTemplate(body, ejsCtx);
+        }
+
+        parts.push(`${head}\n${body}`);
+    }
+
+    if (!parts.length) return '';
+    return `<worldbook>\n${parts.join('\n\n---\n\n')}\n</worldbook>`;
+}
+
+/**
+ * -------------------------
+ * EJS rendering for worldbook entries
+ * --------------------------
+ */
+function getChatVariables() {
+  let vars = {};
+
+  // 1) Chat-level variables
+  try {
+    const ctx = getContextSafe();
+    if (ctx?.chatMetadata?.variables) vars = { ...ctx.chatMetadata.variables };
+  } catch {}
+  if (!Object.keys(vars).length) {
+    try {
+      if (window.chat_metadata?.variables) vars = { ...window.chat_metadata.variables };
+    } catch {}
+  }
+  if (!Object.keys(vars).length) {
+    try {
+      const ctx = getContextSafe();
+      if (ctx?.chat_metadata?.variables) vars = { ...ctx.chat_metadata.variables };
+    } catch {}
+  }
+
+  // 2) Always merge message-level variables (some presets store vars here instead of chat-level)
+  try {
+    const msgVars = getLatestMessageVarTable();
+    if (msgVars && typeof msgVars === 'object') {
+      for (const key of Object.keys(msgVars)) {
+        // Skip MVU internal metadata keys
+        if (key === 'schema' || key === 'display_data' || key === 'delta_data') continue;
+        if (vars[key] === undefined) {
+          // Chat-level doesn't have this key at all — take from message-level
+          vars[key] = msgVars[key];
+        } else if (
+          vars[key] && typeof vars[key] === 'object' && !Array.isArray(vars[key]) &&
+          msgVars[key] && typeof msgVars[key] === 'object' && !Array.isArray(msgVars[key])
+        ) {
+          // Both have this key as objects — shallow merge (message-level fills gaps)
+          for (const subKey of Object.keys(msgVars[key])) {
+            if (vars[key][subKey] === undefined) {
+              vars[key][subKey] = msgVars[key][subKey];
+            }
+          }
+        }
+      }
+    }
+  } catch {}
+
+  return vars;
+}
+
+function buildEjsContext() {
+    const vars = getChatVariables();
+
+    // getvar: read a chat variable (supports dot-path for nested objects)
+    function getvar(name) {
+        if (!name) return '';
+        let val;
+        if (vars[name] !== undefined) {
+            val = vars[name];
+        } else {
+            const parts = String(name).split('.');
+            let cur = vars;
+            for (const p of parts) {
+                if (cur == null || typeof cur !== 'object') return '';
+                cur = cur[p];
+            }
+            val = cur ?? '';
+        }
+        // 字符串布尔值转为真正的布尔值
+        if (val === 'false' || val === 'False' || val === 'FALSE') return false;
+        if (val === 'true' || val === 'True' || val === 'TRUE') return true;
+        return val;
+    }
+
+    // setvar: write a chat variable (no-op for our purposes, just to avoid errors)
+    function setvar(name, value) {
+        if (name) vars[name] = value;
+        return value;
+    }
+
+    return {
+        getvar, setvar,
+        vars,
+        Number, Math, JSON, String, Array, Object, parseInt, parseFloat,
+        console: { log: () => { }, warn: () => { }, error: () => { } },
+    };
+}
+
+function renderEjsTemplate(template, ctx) {
+    // Try window.ejs first (ST loads this library)
+    if (window.ejs?.render) {
+        try {
+            return window.ejs.render(template, ctx, { async: false });
+        } catch (e) {
+            console.warn('[EnaPlanner] EJS render failed, trying fallback:', e?.message);
+        }
+    }
+
+    // Safe degradation when ejs is not available.
+    console.warn('[EnaPlanner] window.ejs not available, skipping EJS rendering. Template returned as-is.');
+    return template;
+}
+
+/**
+ * -------------------------
+ * Template rendering helpers
+ * --------------------------
+ */
+async function prepareEjsEnv() {
+    try {
+        const et = window.EjsTemplate;
+        if (!et) return null;
+        const fn = et.prepareContext || et.preparecontext;
+        if (typeof fn !== 'function') return null;
+        return await fn.call(et, {});
+    } catch { return null; }
+}
+
+async function evalEjsIfPossible(text, env) {
+    try {
+        const et = window.EjsTemplate;
+        if (!et || !env) return text;
+        const fn = et.evalTemplate || et.evaltemplate;
+        if (typeof fn !== 'function') return text;
+        return await fn.call(et, text, env);
+    } catch { return text; }
+}
+
+function substituteMacrosViaST(text) {
+    try { return substituteParamsExtended(text); } catch { return text; }
+}
+
+function deepGet(obj, path) {
+    if (!obj || !path) return undefined;
+    const parts = path.split('.').filter(Boolean);
+    let cur = obj;
+    for (const p of parts) {
+        if (cur == null) return undefined;
+        cur = cur[p];
+    }
+    return cur;
+}
+
+function resolveGetMessageVariableMacros(text, messageVars) {
+    return text.replace(/{{\s*get_message_variable::([^}]+)\s*}}/g, (_, rawPath) => {
+        const path = String(rawPath || '').trim();
+        if (!path) return '';
+        return safeStringify(deepGet(messageVars, path));
+    });
+}
+
+function resolveFormatMessageVariableMacros(text, messageVars) {
+    return text.replace(/{{\s*format_message_variable::([^}]+)\s*}}/g, (_, rawPath) => {
+        const path = String(rawPath || '').trim();
+        if (!path) return '';
+        const val = deepGet(messageVars, path);
+        if (val == null) return '';
+        if (typeof val === 'string') return val;
+        try { return jsyaml.dump(val, { lineWidth: -1, noRefs: true }); } catch { return safeStringify(val); }
+    });
+}
+
+function getLatestMessageVarTable() {
+    try {
+        if (window.Mvu?.getMvuData) {
+            return window.Mvu.getMvuData({ type: 'message', message_id: 'latest' });
+        }
+    } catch { }
+    try {
+        const getVars = window.TavernHelper?.getVariables || window.Mvu?.getMvuData;
+        if (typeof getVars === 'function') {
+            return getVars({ type: 'message', message_id: 'latest' });
+        }
+    } catch { }
+    return {};
+}
+
+async function renderTemplateAll(text, env, messageVars) {
+    let out = String(text ?? '');
+    out = await evalEjsIfPossible(out, env);
+    out = substituteMacrosViaST(out);
+    out = resolveGetMessageVariableMacros(out, messageVars);
+    out = resolveFormatMessageVariableMacros(out, messageVars);
+    return out;
+}
+
+/**
+ * -------------------------
+ * Planner response filtering
+ * --------------------------
+ */
+function stripThinkBlocks(text) {
+    let out = String(text ?? '');
+    out = out.replace(/<think\b[^>]*>[\s\S]*?<\/think>/gi, '');
+    out = out.replace(/<thinking\b[^>]*>[\s\S]*?<\/thinking>/gi, '');
+    return out.trim();
+}
+
+function extractSelectedBlocksInOrder(text, tagNames) {
+    const names = normalizeResponseKeepTags(tagNames);
+    if (!Array.isArray(names) || names.length === 0) return '';
+    const src = String(text ?? '');
+    const blocks = [];
+    const escapedNames = names.map(n => n.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'));
+    const re = new RegExp(`<(${escapedNames.join('|')})\\b[^>]*>[\\s\\S]*?<\\/\\1>`, 'gi');
+    let m;
+    while ((m = re.exec(src)) !== null) {
+        blocks.push(m[0]);
+    }
+    return blocks.join('\n\n').trim();
+}
+
+function filterPlannerForInput(rawFull) {
+    const noThink = stripThinkBlocks(rawFull);
+    const tags = ensureSettings().responseKeepTags;
+    const selected = extractSelectedBlocksInOrder(noThink, tags);
+    if (selected) return selected;
+    return noThink;
+}
+
+function filterPlannerPreview(rawPartial) {
+    return stripThinkBlocks(rawPartial);
+}
+
+/**
+ * -------------------------
+ * Planner API calls
+ * --------------------------
+ */
+async function callPlanner(messages, options = {}) {
+    const s = ensureSettings();
+    if (!s.api.baseUrl) throw new Error('未配置 API URL');
+    if (!s.api.apiKey) throw new Error('未配置 API KEY');
+    if (!s.api.model) throw new Error('未选择模型');
+
+    const url = buildUrl('/chat/completions');
+
+    const body = {
+        model: s.api.model,
+        messages,
+        stream: !!s.api.stream
+    };
+
+    const t = Number(s.api.temperature);
+    if (!Number.isNaN(t)) body.temperature = t;
+    const tp = Number(s.api.top_p);
+    if (!Number.isNaN(tp)) body.top_p = tp;
+    const tk = Number(s.api.top_k);
+    if (!Number.isNaN(tk) && tk > 0) body.top_k = tk;
+    const pp = s.api.presence_penalty === '' ? null : Number(s.api.presence_penalty);
+    if (pp != null && !Number.isNaN(pp)) body.presence_penalty = pp;
+    const fp = s.api.frequency_penalty === '' ? null : Number(s.api.frequency_penalty);
+    if (fp != null && !Number.isNaN(fp)) body.frequency_penalty = fp;
+    const mt = s.api.max_tokens === '' ? null : Number(s.api.max_tokens);
+    if (mt != null && !Number.isNaN(mt) && mt > 0) body.max_tokens = mt;
+
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => controller.abort(), PLANNER_REQUEST_TIMEOUT_MS);
+    try {
+        const res = await fetch(url, {
+            method: 'POST',
+            headers: {
+                ...getRequestHeaders(),
+                Authorization: `Bearer ${s.api.apiKey}`,
+                'Content-Type': 'application/json'
+            },
+            body: JSON.stringify(body),
+            signal: controller.signal
+        });
+
+        if (!res.ok) {
+            const text = await res.text().catch(() => '');
+            throw new Error(`规划请求失败: ${res.status} ${text}`.slice(0, 500));
+        }
+
+        if (!s.api.stream) {
+            const data = await res.json();
+            const text = String(data?.choices?.[0]?.message?.content ?? data?.choices?.[0]?.text ?? '');
+            if (text) options?.onDelta?.(text, text);
+            return text;
+        }
+
+        // SSE stream
+        const reader = res.body.getReader();
+        const decoder = new TextDecoder('utf-8');
+        let buf = '';
+        let full = '';
+
+        while (true) {
+            const { value, done } = await reader.read();
+            if (done) break;
+            buf += decoder.decode(value, { stream: true });
+            const chunks = buf.split('\n\n');
+            buf = chunks.pop() ?? '';
+
+            for (const ch of chunks) {
+                const lines = ch.split('\n').map(x => x.trim()).filter(Boolean);
+                for (const line of lines) {
+                    if (!line.startsWith('data:')) continue;
+                    const payload = line.slice(5).trim();
+                    if (payload === '[DONE]') continue;
+                    try {
+                        const j = JSON.parse(payload);
+                        const delta = j?.choices?.[0]?.delta;
+                        const piece = delta?.content ?? delta?.text ?? '';
+                        if (piece) {
+                            full += piece;
+                            options?.onDelta?.(piece, full);
+                        }
+                    } catch { }
+                }
+            }
+        }
+        return full;
+    } catch (err) {
+        if (controller.signal.aborted || err?.name === 'AbortError') {
+            throw new Error(`规划请求超时（>${Math.floor(PLANNER_REQUEST_TIMEOUT_MS / 1000)}s）`);
+        }
+        throw err;
+    } finally {
+        clearTimeout(timeoutId);
+    }
+}
+
+async function fetchModelsForUi() {
+    const s = ensureSettings();
+    if (!s.api.baseUrl) throw new Error('请先填写 API URL');
+    if (!s.api.apiKey) throw new Error('请先填写 API KEY');
+    const url = buildUrl('/models');
+    const res = await fetch(url, {
+        method: 'GET',
+        headers: {
+            ...getRequestHeaders(),
+            Authorization: `Bearer ${s.api.apiKey}`
+        }
+    });
+    if (!res.ok) {
+        const text = await res.text().catch(() => '');
+        throw new Error(`拉取模型失败: ${res.status} ${text}`.slice(0, 300));
+    }
+    const data = await res.json();
+    const list = Array.isArray(data?.data) ? data.data : [];
+    return list.map(x => x?.id).filter(Boolean);
+}
+
+async function debugWorldbookForUi() {
+    let out = '正在诊断世界书读取...\n';
+    const charWb = await getCharacterWorldbooks();
+    out += `角色世界书名称: ${JSON.stringify(charWb)}\n`;
+    const globalWb = await getGlobalWorldbooks();
+    out += `全局世界书名称: ${JSON.stringify(globalWb)}\n`;
+    const all = [...new Set([...charWb, ...globalWb])];
+    for (const name of all) {
+        const data = await getWorldbookData(name);
+        const count = data?.entries?.length ?? 0;
+        const enabled = data?.entries?.filter(e => !e?.disable && !e?.disabled)?.length ?? 0;
+        out += `  "${name}": ${count} 条目, ${enabled} 已启用\n`;
+    }
+    if (!all.length) {
+        out += '⚠️ 未找到任何世界书。请检查角色卡是否绑定了世界书。\n';
+        const charObj = getCurrentCharSafe();
+        out += `charObj存在: ${!!charObj}\n`;
+        if (charObj) {
+            out += `charObj.world: ${charObj?.world}\n`;
+            out += `charObj.data.extensions.world: ${charObj?.data?.extensions?.world}\n`;
+        }
+        const ctx = getContextSafe();
+        out += `ctx存在: ${!!ctx}\n`;
+        if (ctx) {
+            out += `ctx.characterId: ${ctx?.characterId}\n`;
+            out += `ctx.this_chid: ${ctx?.this_chid}\n`;
+        }
+    }
+    return out;
+}
+
+function debugCharForUi() {
+    const charObj = getCurrentCharSafe();
+    if (!charObj) {
+        const ctx = getContextSafe();
+        return [
+            '⚠️ 未检测到角色。',
+            `ctx: ${!!ctx}, ctx.characterId: ${ctx?.characterId}, ctx.this_chid: ${ctx?.this_chid}`,
+            `window.this_chid: ${window.this_chid}`,
+            `window.characters count: ${window.characters?.length ?? 'N/A'}`
+        ].join('\n');
+    }
+    const block = formatCharCardBlock(charObj);
+    return [
+        `角色名: ${charObj?.name}`,
+        `desc长度: ${(charObj?.description ?? '').length}`,
+        `personality长度: ${(charObj?.personality ?? '').length}`,
+        `scenario长度: ${(charObj?.scenario ?? '').length}`,
+        `world: ${charObj?.world ?? charObj?.data?.extensions?.world ?? '(无)'}`,
+        `---\n${block.slice(0, 500)}...`
+    ].join('\n');
+}
+
+/**
+ * -------------------------
+ * Build planner messages
+ * --------------------------
+ */
+function getPromptBlocksByRole(role) {
+    const s = ensureSettings();
+    return (s.promptBlocks || []).filter(b => b?.role === role && String(b?.content ?? '').trim());
+}
+
+async function buildPlannerMessages(rawUserInput) {
+    const s = ensureSettings();
+    const ctx = getContextSafe();
+    const chat = ctx?.chat ?? window.SillyTavern?.chat ?? [];
+    const charObj = getCurrentCharSafe();
+    const env = await prepareEjsEnv();
+    const messageVars = getLatestMessageVarTable();
+
+    const enaSystemBlocks = getPromptBlocksByRole('system');
+    const enaAssistantBlocks = getPromptBlocksByRole('assistant');
+    const enaUserBlocks = getPromptBlocksByRole('user');
+
+    const charBlockRaw = formatCharCardBlock(charObj);
+
+    // --- BME memory: planner-safe recall with history/vector guards ---
+    let memoryBlock = '';
+    let memorySource = 'none';
+    if (_bmeRuntime?.runPlannerRecallForEna) {
+        const controller = new AbortController();
+        const timeoutId = setTimeout(() => controller.abort(), VECTOR_RECALL_TIMEOUT_MS);
+        try {
+            const recall = await _bmeRuntime.runPlannerRecallForEna({
+                rawUserInput,
+                signal: controller.signal,
+                disableLlmRecall: true,
+            });
+            if (recall?.ok && recall.memoryBlock) {
+                memoryBlock = recall.memoryBlock;
+                memorySource = 'bme';
+            }
+        } catch (e) {
+            if (e?.name === 'AbortError') {
+                console.warn(`[Ena] BME recall timed out (> ${Math.floor(VECTOR_RECALL_TIMEOUT_MS / 1000)}s)`);
+            } else {
+                console.warn('[Ena] BME planner recall failed:', e);
+            }
+        } finally {
+            clearTimeout(timeoutId);
+        }
+    }
+    console.log(`[Ena] Memory source: ${memorySource}`);
+
+    // --- Chat history: last 2 AI messages (floors N-1 & N-3) ---
+    // Two messages instead of one to avoid cross-device cache miss:
+    // Keep two recent assistant messages so planner prompt still has
+    // a little continuity even when memory recall returns empty.
+    const recentChatRaw = collectRecentChatSnippet(chat, 2);
+
+    const plotsRaw = formatPlotsBlock(extractLastNPlots(chat, s.plotCount));
+
+    // Build scanText for worldbook keyword activation
+    const scanText = [charBlockRaw, recentChatRaw, plotsRaw, rawUserInput].join('\n\n');
+
+    const worldbookRaw = await buildWorldbookBlock(scanText);
+
+    // Render templates/macros
+    const charBlock = await renderTemplateAll(charBlockRaw, env, messageVars);
+    const recentChat = await renderTemplateAll(recentChatRaw, env, messageVars);
+    const plots = await renderTemplateAll(plotsRaw, env, messageVars);
+    const bmeMemory = memoryBlock || '';
+    const worldbook = await renderTemplateAll(worldbookRaw, env, messageVars);
+    const userInput = await renderTemplateAll(rawUserInput, env, messageVars);
+
+    const messages = [];
+
+    // 1) Ena system prompts
+    for (const b of enaSystemBlocks) {
+        const content = await renderTemplateAll(b.content, env, messageVars);
+        messages.push({ role: 'system', content });
+    }
+
+    // 2) Character card
+    if (String(charBlock).trim()) messages.push({ role: 'system', content: charBlock });
+
+    // 3) Worldbook
+    if (String(worldbook).trim()) messages.push({ role: 'system', content: worldbook });
+
+    // 4) Chat history (last 2 AI responses — floors N-1 & N-3)
+    if (String(recentChat).trim()) messages.push({ role: 'system', content: recentChat });
+
+    // 4.5) BME memory — after chat context, before plots
+    if (bmeMemory.trim()) {
+        messages.push({ role: 'system', content: `<bme_memory>\n${bmeMemory}\n</bme_memory>` });
+    }
+
+    // 5) Previous plots
+    if (String(plots).trim()) messages.push({ role: 'system', content: plots });
+
+    // 6) User input (with friendly framing)
+    const userMsgContent = `以下是玩家的最新指令哦~:\n[${userInput}]`;
+    messages.push({ role: 'user', content: userMsgContent });
+
+    // Extra user blocks before user message
+    for (const b of enaUserBlocks) {
+        const content = await renderTemplateAll(b.content, env, messageVars);
+        messages.splice(Math.max(0, messages.length - 1), 0, { role: 'system', content: `【extra-user-block】\n${content}` });
+    }
+
+    // 7) Assistant blocks
+    for (const b of enaAssistantBlocks) {
+        const content = await renderTemplateAll(b.content, env, messageVars);
+        messages.push({ role: 'assistant', content });
+    }
+
+    return { messages, meta: { charBlockRaw, worldbookRaw, recentChatRaw, memoryBlockLen: memoryBlock.length, plotsRaw } };
+}
+
+/**
+ * -------------------------
+ * Planning runner + logging
+ * --------------------------
+ */
+async function runPlanningOnce(rawUserInput, silent = false, options = {}) {
+    const s = ensureSettings();
+
+    const log = {
+        time: nowISO(), ok: false, model: s.api.model,
+        requestMessages: [], rawReply: '', filteredReply: '', error: ''
+    };
+
+    try {
+        const { messages } = await buildPlannerMessages(rawUserInput);
+        log.requestMessages = messages;
+
+        const rawReply = await callPlanner(messages, options);
+        log.rawReply = rawReply;
+
+        const filtered = filterPlannerForInput(rawReply);
+        log.filteredReply = filtered;
+        log.ok = true;
+
+        state.logs.unshift(log); clampLogs(); persistLogsMaybe();
+        return { rawReply, filtered };
+    } catch (e) {
+        log.error = String(e?.message ?? e);
+        state.logs.unshift(log); clampLogs(); persistLogsMaybe();
+        if (!silent) toastErr(log.error);
+        throw e;
+    }
+}
+
+/**
+ * -------------------------
+ * Intercept send
+ * --------------------------
+ */
+function getSendTextarea() { return document.getElementById('send_textarea'); }
+function getSendButton() { return document.getElementById('send_but') || document.getElementById('send_button'); }
+
+function shouldInterceptNow() {
+    const s = ensureSettings();
+    if (!s.enabled || state.isPlanning) return false;
+    const ta = getSendTextarea();
+    if (!ta) return false;
+    const txt = String(ta.value ?? '').trim();
+    if (!txt) return false;
+    if (state.bypassNextSend) return false;
+    if (s.skipIfPlotPresent && /<plot\b/i.test(txt)) return false;
+    return true;
+}
+
+async function doInterceptAndPlanThenSend() {
+    const ta = getSendTextarea();
+    const btn = getSendButton();
+    if (!ta || !btn) return;
+
+    const raw = String(ta.value ?? '').trim();
+    if (!raw) return;
+
+    state.isPlanning = true;
+    setSendUIBusy(true);
+
+    try {
+        toastInfo('Ena Planner：正在规划…');
+        const { filtered } = await runPlanningOnce(raw, false, {
+            onDelta(_piece, full) {
+                if (!state.isPlanning) return;
+                if (!ensureSettings().api.stream) return;
+                const preview = filterPlannerPreview(full);
+                ta.value = `${raw}\n\n${preview}`.trim();
+            }
+        });
+        const merged = `${raw}\n\n${filtered}`.trim();
+        ta.value = merged;
+        state.lastInjectedText = merged;
+
+        state.bypassNextSend = true;
+        btn.click();
+    } catch (err) {
+        ta.value = raw;
+        state.lastInjectedText = '';
+        throw err;
+    } finally {
+        state.isPlanning = false;
+        setSendUIBusy(false);
+        setTimeout(() => { state.bypassNextSend = false; }, 800);
+    }
+}
+
+function installSendInterceptors() {
+    if (sendListenersInstalled) return;
+    sendClickHandler = (e) => {
+        const btn = getSendButton();
+        if (!btn) return;
+        if (e.target !== btn && !btn.contains(e.target)) return;
+        if (!shouldInterceptNow()) return;
+        e.preventDefault();
+        e.stopImmediatePropagation();
+        doInterceptAndPlanThenSend().catch(err => toastErr(String(err?.message ?? err)));
+    };
+    sendKeydownHandler = (e) => {
+        const ta = getSendTextarea();
+        if (!ta || e.target !== ta) return;
+        if (e.key === 'Enter' && !e.shiftKey) {
+            if (!shouldInterceptNow()) return;
+            e.preventDefault();
+            e.stopImmediatePropagation();
+            doInterceptAndPlanThenSend().catch(err => toastErr(String(err?.message ?? err)));
+        }
+    };
+    document.addEventListener('click', sendClickHandler, true);
+    document.addEventListener('keydown', sendKeydownHandler, true);
+    sendListenersInstalled = true;
+}
+
+function uninstallSendInterceptors() {
+    if (!sendListenersInstalled) return;
+    if (sendClickHandler) document.removeEventListener('click', sendClickHandler, true);
+    if (sendKeydownHandler) document.removeEventListener('keydown', sendKeydownHandler, true);
+    sendClickHandler = null;
+    sendKeydownHandler = null;
+    sendListenersInstalled = false;
+}
+
+function getIframeConfigPayload() {
+    const s = ensureSettings();
+    return {
+        ...s,
+        logs: state.logs,
+    };
+}
+
+function openSettings() {
+    if (document.getElementById(OVERLAY_ID)) return;
+
+    overlay = document.createElement('div');
+    overlay.id = OVERLAY_ID;
+    overlay.style.cssText = `
+        position: fixed;
+        top: 0;
+        left: 0;
+        width: 100vw;
+        height: ${window.innerHeight}px;
+        background: rgba(0,0,0,0.5);
+        z-index: 99999;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        overflow: hidden;
+    `;
+
+    const iframe = document.createElement('iframe');
+    iframe.src = getHtmlPath();
+    iframe.style.cssText = `
+        width: min(1200px, 96vw);
+        height: min(980px, 94vh);
+        max-height: calc(100% - 24px);
+        border: none;
+        border-radius: 12px;
+        background: #1a1a1a;
+    `;
+
+    overlay.appendChild(iframe);
+    document.body.appendChild(overlay);
+
+    if (!iframeMessageBound) {
+        // Guarded by isTrustedIframeEvent (origin + source).
+        // eslint-disable-next-line no-restricted-syntax
+        window.addEventListener('message', handleIframeMessage);
+        iframeMessageBound = true;
+    }
+}
+
+function closeSettings() {
+    const overlayEl = document.getElementById(OVERLAY_ID);
+    if (overlayEl) overlayEl.remove();
+    overlay = null;
+}
+
+async function handleIframeMessage(ev) {
+    const iframe = overlay?.querySelector('iframe');
+    if (!isTrustedIframeEvent(ev, iframe)) return;
+    if (!ev.data?.type?.startsWith('xb-ena:')) return;
+
+    const { type, payload } = ev.data;
+    switch (type) {
+        case 'xb-ena:ready':
+            postToIframe(iframe, { type: 'xb-ena:config', payload: getIframeConfigPayload() });
+            break;
+        case 'xb-ena:close':
+            closeSettings();
+            break;
+        case 'xb-ena:save-config': {
+            const requestId = payload?.requestId || '';
+            const patch = (payload && typeof payload.patch === 'object') ? payload.patch : payload;
+            Object.assign(ensureSettings(), patch || {});
+            const ok = await saveConfigNow();
+            if (ok) {
+                postToIframe(iframe, {
+                    type: 'xb-ena:config-saved',
+                    payload: {
+                        ...getIframeConfigPayload(),
+                        requestId
+                    }
+                });
+            } else {
+                postToIframe(iframe, {
+                    type: 'xb-ena:config-save-error',
+                    payload: {
+                        message: '保存失败',
+                        requestId
+                    }
+                });
+            }
+            break;
+        }
+        case 'xb-ena:reset-prompt-default': {
+            const requestId = payload?.requestId || '';
+            const s = ensureSettings();
+            s.promptBlocks = getDefaultSettings().promptBlocks;
+            const ok = await saveConfigNow();
+            if (ok) {
+                postToIframe(iframe, {
+                    type: 'xb-ena:config-saved',
+                    payload: {
+                        ...getIframeConfigPayload(),
+                        requestId
+                    }
+                });
+            } else {
+                postToIframe(iframe, {
+                    type: 'xb-ena:config-save-error',
+                    payload: {
+                        message: '重置失败',
+                        requestId
+                    }
+                });
+            }
+            break;
+        }
+        case 'xb-ena:run-test': {
+            try {
+                const fake = payload?.text || '（测试输入）我想让你帮我规划下一步剧情。';
+                await runPlanningOnce(fake, true);
+                postToIframe(iframe, { type: 'xb-ena:test-done' });
+                postToIframe(iframe, { type: 'xb-ena:logs', payload: { logs: state.logs } });
+            } catch (err) {
+                postToIframe(iframe, { type: 'xb-ena:test-error', payload: { message: String(err?.message ?? err) } });
+            }
+            break;
+        }
+        case 'xb-ena:logs-request':
+            postToIframe(iframe, { type: 'xb-ena:logs', payload: { logs: state.logs } });
+            break;
+        case 'xb-ena:logs-clear':
+            state.logs = [];
+            await saveConfigNow();
+            postToIframe(iframe, { type: 'xb-ena:logs', payload: { logs: state.logs } });
+            break;
+        case 'xb-ena:fetch-models': {
+            try {
+                const models = await fetchModelsForUi();
+                postToIframe(iframe, { type: 'xb-ena:models', payload: { models } });
+            } catch (err) {
+                postToIframe(iframe, { type: 'xb-ena:models-error', payload: { message: String(err?.message ?? err) } });
+            }
+            break;
+        }
+        case 'xb-ena:debug-worldbook': {
+            try {
+                const output = await debugWorldbookForUi();
+                postToIframe(iframe, { type: 'xb-ena:debug-output', payload: { output } });
+            } catch (err) {
+                postToIframe(iframe, { type: 'xb-ena:debug-output', payload: { output: String(err?.message ?? err) } });
+            }
+            break;
+        }
+        case 'xb-ena:debug-char': {
+            const output = debugCharForUi();
+            postToIframe(iframe, { type: 'xb-ena:debug-output', payload: { output } });
+            break;
+        }
+    }
+}
+
+export async function initEnaPlanner(bmeRuntime) {
+    _bmeRuntime = bmeRuntime || null;
+    await migrateFromLWBIfNeeded();
+    await loadConfig();
+    loadPersistedLogsMaybe();
+    installSendInterceptors();
+    window.stBmeEnaPlanner = { openSettings, closeSettings };
+}
+
+export function cleanupEnaPlanner() {
+    uninstallSendInterceptors();
+    closeSettings();
+    if (iframeMessageBound) {
+        window.removeEventListener('message', handleIframeMessage);
+        iframeMessageBound = false;
+    }
+    delete window.stBmeEnaPlanner;
+    _bmeRuntime = null;
+}
+
diff --git a/index.js b/index.js
index bbb05fe..1897b56 100644
--- a/index.js
+++ b/index.js
@@ -7408,6 +7408,120 @@ function buildRecallRetrieveOptions(settings, context) {
   };
 }
 
+async function runPlannerRecallForEna({
+  rawUserInput,
+  signal = undefined,
+  disableLlmRecall = true,
+} = {}) {
+  const userMessage = normalizeRecallInputText(rawUserInput || "");
+  if (!userMessage) {
+    return {
+      ok: false,
+      reason: "empty-user-input",
+      memoryBlock: "",
+      recentMessages: [],
+      result: null,
+    };
+  }
+
+  const settings = getSettings();
+  if (!settings.enabled || !settings.recallEnabled) {
+    return {
+      ok: false,
+      reason: "recall-disabled",
+      memoryBlock: "",
+      recentMessages: [],
+      result: null,
+    };
+  }
+
+  if (signal?.aborted) {
+    throw signal.reason instanceof Error
+      ? signal.reason
+      : createAbortError("Ena Planner recall aborted");
+  }
+
+  if (!currentGraph || !isGraphReadableForRecall()) {
+    return {
+      ok: false,
+      reason: "graph-not-readable",
+      memoryBlock: "",
+      recentMessages: [],
+      result: null,
+    };
+  }
+
+  if (
+    !Array.isArray(currentGraph.nodes) ||
+    currentGraph.nodes.length === 0
+  ) {
+    return {
+      ok: false,
+      reason: "graph-empty",
+      memoryBlock: "",
+      recentMessages: [],
+      result: null,
+    };
+  }
+
+  if (isGraphMetadataWriteAllowed()) {
+    const recovered = await recoverHistoryIfNeeded("pre-ena-planner-recall");
+    if (!recovered) {
+      return {
+        ok: false,
+        reason: "history-recovery-not-ready",
+        memoryBlock: "",
+        recentMessages: [],
+        result: null,
+      };
+    }
+  }
+
+  if (signal?.aborted) {
+    throw signal.reason instanceof Error
+      ? signal.reason
+      : createAbortError("Ena Planner recall aborted");
+  }
+
+  await ensureVectorReadyIfNeeded("pre-ena-planner-recall", signal);
+
+  const context = getContext();
+  const chat = context?.chat ?? [];
+  const recentMessages = buildRecallRecentMessages(
+    chat,
+    clampInt(settings.recallLlmContextMessages, 4, 0, 20),
+    userMessage,
+  );
+  const schema = getSchema();
+  const baseOptions = buildRecallRetrieveOptions(settings, context);
+  const options = {
+    ...baseOptions,
+    enableLLMRecall: disableLlmRecall
+      ? false
+      : baseOptions.enableLLMRecall,
+  };
+
+  const result = await retrieve({
+    graph: currentGraph,
+    userMessage,
+    recentMessages,
+    embeddingConfig: getEmbeddingConfig(),
+    schema,
+    settings,
+    signal,
+    options,
+  });
+  const memoryBlock = formatInjection(result, schema).trim();
+
+  return {
+    ok: Boolean(memoryBlock),
+    reason: memoryBlock ? "completed" : "empty-memory-block",
+    memoryBlock,
+    recentMessages,
+    result,
+  };
+}
+
 /**
  * 召回管线：检索并注入记忆
  */
@@ -8054,5 +8168,16 @@ async function onReembedDirect() {
   });
 
   schedulePersistedRecallMessageUiRefresh(120);
+  try {
+    const { initEnaPlanner } = await import("./ena-planner/ena-planner.js");
+    await initEnaPlanner({
+      getContext,
+      getExtensionPath: () => `scripts/extensions/third-party/${MODULE_NAME}`,
+      runPlannerRecallForEna,
+    });
+    console.log("[ST-BME] Ena Planner module loaded");
+  } catch (error) {
+    console.warn("[ST-BME] Ena Planner module load failed:", error);
+  }
   console.log("[ST-BME] 初始化完成");
 })();
diff --git a/planner-tag-utils.js b/planner-tag-utils.js
new file mode 100644
index 0000000..9831578
--- /dev/null
+++ b/planner-tag-utils.js
@@ -0,0 +1,25 @@
+const DEFAULT_PLANNER_TAGS = ["plot", "note", "plot-log", "state"];
+
+export function stripPlannerTags(text, tags = DEFAULT_PLANNER_TAGS) {
+  let output = String(text ?? "");
+
+  for (const rawTag of Array.isArray(tags) ? tags : DEFAULT_PLANNER_TAGS) {
+    const tag = String(rawTag || "").trim().toLowerCase();
+    if (!tag) continue;
+    const escaped = tag.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+    output = output.replace(
+      new RegExp(`<${escaped}\\b[^>]*>[\\s\\S]*?<\\/${escaped}>`, "gi"),
+      "",
+    );
+  }
+
+  return output.trim();
+}
+
+export function sanitizePlannerMessageText(message, tags = DEFAULT_PLANNER_TAGS) {
+  if (!message) return "";
+  const text = String(message.mes ?? "");
+  return message.is_user ? stripPlannerTags(text, tags) : text;
+}
+
+export { DEFAULT_PLANNER_TAGS };
diff --git a/ui-status.js b/ui-status.js
index 54449a7..4bd9634 100644
--- a/ui-status.js
+++ b/ui-status.js
@@ -1,6 +1,7 @@
 // ST-BME: UI 状态工厂、纯工具函数
 // 此模块中的函数均不依赖 index.js 模块级可变状态，
 // 可被 index.js 及其他模块安全导入。
+import { sanitizePlannerMessageText } from "./planner-tag-utils.js";
 
 // ═══════════════════════════════════════════════════════════
 // 常量
@@ -309,7 +310,7 @@ export function shouldRunRecallForTransaction(transaction, hookName) {
 }
 
 export function formatRecallContextLine(message) {
-  return `[${message.is_user ? "user" : "assistant"}]: ${message.mes || ""}`;
+  return `[${message.is_user ? "user" : "assistant"}]: ${sanitizePlannerMessageText(message)}`;
 }
 
 // ═══════════════════════════════════════════════════════════
diff --git a/vendor/js-yaml.mjs b/vendor/js-yaml.mjs
new file mode 100644
index 0000000..be71cad
--- /dev/null
+++ b/vendor/js-yaml.mjs
@@ -0,0 +1,3851 @@
+
+/*! js-yaml 4.1.0 https://github.com/nodeca/js-yaml @license MIT */
+function isNothing(subject) {
+  return (typeof subject === 'undefined') || (subject === null);
+}
+
+
+function isObject(subject) {
+  return (typeof subject === 'object') && (subject !== null);
+}
+
+
+function toArray(sequence) {
+  if (Array.isArray(sequence)) return sequence;
+  else if (isNothing(sequence)) return [];
+
+  return [ sequence ];
+}
+
+
+function extend(target, source) {
+  var index, length, key, sourceKeys;
+
+  if (source) {
+    sourceKeys = Object.keys(source);
+
+    for (index = 0, length = sourceKeys.length; index < length; index += 1) {
+      key = sourceKeys[index];
+      target[key] = source[key];
+    }
+  }
+
+  return target;
+}
+
+
+function repeat(string, count) {
+  var result = '', cycle;
+
+  for (cycle = 0; cycle < count; cycle += 1) {
+    result += string;
+  }
+
+  return result;
+}
+
+
+function isNegativeZero(number) {
+  return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);
+}
+
+
+var isNothing_1      = isNothing;
+var isObject_1       = isObject;
+var toArray_1        = toArray;
+var repeat_1         = repeat;
+var isNegativeZero_1 = isNegativeZero;
+var extend_1         = extend;
+
+var common = {
+	isNothing: isNothing_1,
+	isObject: isObject_1,
+	toArray: toArray_1,
+	repeat: repeat_1,
+	isNegativeZero: isNegativeZero_1,
+	extend: extend_1
+};
+
+// YAML error class. http://stackoverflow.com/questions/8458984
+
+
+function formatError(exception, compact) {
+  var where = '', message = exception.reason || '(unknown reason)';
+
+  if (!exception.mark) return message;
+
+  if (exception.mark.name) {
+    where += 'in "' + exception.mark.name + '" ';
+  }
+
+  where += '(' + (exception.mark.line + 1) + ':' + (exception.mark.column + 1) + ')';
+
+  if (!compact && exception.mark.snippet) {
+    where += '\n\n' + exception.mark.snippet;
+  }
+
+  return message + ' ' + where;
+}
+
+
+function YAMLException$1(reason, mark) {
+  // Super constructor
+  Error.call(this);
+
+  this.name = 'YAMLException';
+  this.reason = reason;
+  this.mark = mark;
+  this.message = formatError(this, false);
+
+  // Include stack trace in error object
+  if (Error.captureStackTrace) {
+    // Chrome and NodeJS
+    Error.captureStackTrace(this, this.constructor);
+  } else {
+    // FF, IE 10+ and Safari 6+. Fallback for others
+    this.stack = (new Error()).stack || '';
+  }
+}
+
+
+// Inherit from Error
+YAMLException$1.prototype = Object.create(Error.prototype);
+YAMLException$1.prototype.constructor = YAMLException$1;
+
+
+YAMLException$1.prototype.toString = function toString(compact) {
+  return this.name + ': ' + formatError(this, compact);
+};
+
+
+var exception = YAMLException$1;
+
+// get snippet for a single line, respecting maxLength
+function getLine(buffer, lineStart, lineEnd, position, maxLineLength) {
+  var head = '';
+  var tail = '';
+  var maxHalfLength = Math.floor(maxLineLength / 2) - 1;
+
+  if (position - lineStart > maxHalfLength) {
+    head = ' ... ';
+    lineStart = position - maxHalfLength + head.length;
+  }
+
+  if (lineEnd - position > maxHalfLength) {
+    tail = ' ...';
+    lineEnd = position + maxHalfLength - tail.length;
+  }
+
+  return {
+    str: head + buffer.slice(lineStart, lineEnd).replace(/\t/g, '→') + tail,
+    pos: position - lineStart + head.length // relative position
+  };
+}
+
+
+function padStart(string, max) {
+  return common.repeat(' ', max - string.length) + string;
+}
+
+
+function makeSnippet(mark, options) {
+  options = Object.create(options || null);
+
+  if (!mark.buffer) return null;
+
+  if (!options.maxLength) options.maxLength = 79;
+  if (typeof options.indent      !== 'number') options.indent      = 1;
+  if (typeof options.linesBefore !== 'number') options.linesBefore = 3;
+  if (typeof options.linesAfter  !== 'number') options.linesAfter  = 2;
+
+  var re = /\r?\n|\r|\0/g;
+  var lineStarts = [ 0 ];
+  var lineEnds = [];
+  var match;
+  var foundLineNo = -1;
+
+  while ((match = re.exec(mark.buffer))) {
+    lineEnds.push(match.index);
+    lineStarts.push(match.index + match[0].length);
+
+    if (mark.position <= match.index && foundLineNo < 0) {
+      foundLineNo = lineStarts.length - 2;
+    }
+  }
+
+  if (foundLineNo < 0) foundLineNo = lineStarts.length - 1;
+
+  var result = '', i, line;
+  var lineNoLength = Math.min(mark.line + options.linesAfter, lineEnds.length).toString().length;
+  var maxLineLength = options.maxLength - (options.indent + lineNoLength + 3);
+
+  for (i = 1; i <= options.linesBefore; i++) {
+    if (foundLineNo - i < 0) break;
+    line = getLine(
+      mark.buffer,
+      lineStarts[foundLineNo - i],
+      lineEnds[foundLineNo - i],
+      mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo - i]),
+      maxLineLength
+    );
+    result = common.repeat(' ', options.indent) + padStart((mark.line - i + 1).toString(), lineNoLength) +
+      ' | ' + line.str + '\n' + result;
+  }
+
+  line = getLine(mark.buffer, lineStarts[foundLineNo], lineEnds[foundLineNo], mark.position, maxLineLength);
+  result += common.repeat(' ', options.indent) + padStart((mark.line + 1).toString(), lineNoLength) +
+    ' | ' + line.str + '\n';
+  result += common.repeat('-', options.indent + lineNoLength + 3 + line.pos) + '^' + '\n';
+
+  for (i = 1; i <= options.linesAfter; i++) {
+    if (foundLineNo + i >= lineEnds.length) break;
+    line = getLine(
+      mark.buffer,
+      lineStarts[foundLineNo + i],
+      lineEnds[foundLineNo + i],
+      mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo + i]),
+      maxLineLength
+    );
+    result += common.repeat(' ', options.indent) + padStart((mark.line + i + 1).toString(), lineNoLength) +
+      ' | ' + line.str + '\n';
+  }
+
+  return result.replace(/\n$/, '');
+}
+
+
+var snippet = makeSnippet;
+
+var TYPE_CONSTRUCTOR_OPTIONS = [
+  'kind',
+  'multi',
+  'resolve',
+  'construct',
+  'instanceOf',
+  'predicate',
+  'represent',
+  'representName',
+  'defaultStyle',
+  'styleAliases'
+];
+
+var YAML_NODE_KINDS = [
+  'scalar',
+  'sequence',
+  'mapping'
+];
+
+function compileStyleAliases(map) {
+  var result = {};
+
+  if (map !== null) {
+    Object.keys(map).forEach(function (style) {
+      map[style].forEach(function (alias) {
+        result[String(alias)] = style;
+      });
+    });
+  }
+
+  return result;
+}
+
+function Type$1(tag, options) {
+  options = options || {};
+
+  Object.keys(options).forEach(function (name) {
+    if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
+      throw new exception('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
+    }
+  });
+
+  // TODO: Add tag format check.
+  this.options       = options; // keep original options in case user wants to extend this type later
+  this.tag           = tag;
+  this.kind          = options['kind']          || null;
+  this.resolve       = options['resolve']       || function () { return true; };
+  this.construct     = options['construct']     || function (data) { return data; };
+  this.instanceOf    = options['instanceOf']    || null;
+  this.predicate     = options['predicate']     || null;
+  this.represent     = options['represent']     || null;
+  this.representName = options['representName'] || null;
+  this.defaultStyle  = options['defaultStyle']  || null;
+  this.multi         = options['multi']         || false;
+  this.styleAliases  = compileStyleAliases(options['styleAliases'] || null);
+
+  if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
+    throw new exception('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
+  }
+}
+
+var type = Type$1;
+
+/*eslint-disable max-len*/
+
+
+
+
+
+function compileList(schema, name) {
+  var result = [];
+
+  schema[name].forEach(function (currentType) {
+    var newIndex = result.length;
+
+    result.forEach(function (previousType, previousIndex) {
+      if (previousType.tag === currentType.tag &&
+          previousType.kind === currentType.kind &&
+          previousType.multi === currentType.multi) {
+
+        newIndex = previousIndex;
+      }
+    });
+
+    result[newIndex] = currentType;
+  });
+
+  return result;
+}
+
+
+function compileMap(/* lists... */) {
+  var result = {
+        scalar: {},
+        sequence: {},
+        mapping: {},
+        fallback: {},
+        multi: {
+          scalar: [],
+          sequence: [],
+          mapping: [],
+          fallback: []
+        }
+      }, index, length;
+
+  function collectType(type) {
+    if (type.multi) {
+      result.multi[type.kind].push(type);
+      result.multi['fallback'].push(type);
+    } else {
+      result[type.kind][type.tag] = result['fallback'][type.tag] = type;
+    }
+  }
+
+  for (index = 0, length = arguments.length; index < length; index += 1) {
+    arguments[index].forEach(collectType);
+  }
+  return result;
+}
+
+
+function Schema$1(definition) {
+  return this.extend(definition);
+}
+
+
+Schema$1.prototype.extend = function extend(definition) {
+  var implicit = [];
+  var explicit = [];
+
+  if (definition instanceof type) {
+    // Schema.extend(type)
+    explicit.push(definition);
+
+  } else if (Array.isArray(definition)) {
+    // Schema.extend([ type1, type2, ... ])
+    explicit = explicit.concat(definition);
+
+  } else if (definition && (Array.isArray(definition.implicit) || Array.isArray(definition.explicit))) {
+    // Schema.extend({ explicit: [ type1, type2, ... ], implicit: [ type1, type2, ... ] })
+    if (definition.implicit) implicit = implicit.concat(definition.implicit);
+    if (definition.explicit) explicit = explicit.concat(definition.explicit);
+
+  } else {
+    throw new exception('Schema.extend argument should be a Type, [ Type ], ' +
+      'or a schema definition ({ implicit: [...], explicit: [...] })');
+  }
+
+  implicit.forEach(function (type$1) {
+    if (!(type$1 instanceof type)) {
+      throw new exception('Specified list of YAML types (or a single Type object) contains a non-Type object.');
+    }
+
+    if (type$1.loadKind && type$1.loadKind !== 'scalar') {
+      throw new exception('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
+    }
+
+    if (type$1.multi) {
+      throw new exception('There is a multi type in the implicit list of a schema. Multi tags can only be listed as explicit.');
+    }
+  });
+
+  explicit.forEach(function (type$1) {
+    if (!(type$1 instanceof type)) {
+      throw new exception('Specified list of YAML types (or a single Type object) contains a non-Type object.');
+    }
+  });
+
+  var result = Object.create(Schema$1.prototype);
+
+  result.implicit = (this.implicit || []).concat(implicit);
+  result.explicit = (this.explicit || []).concat(explicit);
+
+  result.compiledImplicit = compileList(result, 'implicit');
+  result.compiledExplicit = compileList(result, 'explicit');
+  result.compiledTypeMap  = compileMap(result.compiledImplicit, result.compiledExplicit);
+
+  return result;
+};
+
+
+var schema = Schema$1;
+
+var str = new type('tag:yaml.org,2002:str', {
+  kind: 'scalar',
+  construct: function (data) { return data !== null ? data : ''; }
+});
+
+var seq = new type('tag:yaml.org,2002:seq', {
+  kind: 'sequence',
+  construct: function (data) { return data !== null ? data : []; }
+});
+
+var map = new type('tag:yaml.org,2002:map', {
+  kind: 'mapping',
+  construct: function (data) { return data !== null ? data : {}; }
+});
+
+var failsafe = new schema({
+  explicit: [
+    str,
+    seq,
+    map
+  ]
+});
+
+function resolveYamlNull(data) {
+  if (data === null) return true;
+
+  var max = data.length;
+
+  return (max === 1 && data === '~') ||
+         (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));
+}
+
+function constructYamlNull() {
+  return null;
+}
+
+function isNull(object) {
+  return object === null;
+}
+
+var _null = new type('tag:yaml.org,2002:null', {
+  kind: 'scalar',
+  resolve: resolveYamlNull,
+  construct: constructYamlNull,
+  predicate: isNull,
+  represent: {
+    canonical: function () { return '~';    },
+    lowercase: function () { return 'null'; },
+    uppercase: function () { return 'NULL'; },
+    camelcase: function () { return 'Null'; },
+    empty:     function () { return '';     }
+  },
+  defaultStyle: 'lowercase'
+});
+
+function resolveYamlBoolean(data) {
+  if (data === null) return false;
+
+  var max = data.length;
+
+  return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
+         (max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));
+}
+
+function constructYamlBoolean(data) {
+  return data === 'true' ||
+         data === 'True' ||
+         data === 'TRUE';
+}
+
+function isBoolean(object) {
+  return Object.prototype.toString.call(object) === '[object Boolean]';
+}
+
+var bool = new type('tag:yaml.org,2002:bool', {
+  kind: 'scalar',
+  resolve: resolveYamlBoolean,
+  construct: constructYamlBoolean,
+  predicate: isBoolean,
+  represent: {
+    lowercase: function (object) { return object ? 'true' : 'false'; },
+    uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },
+    camelcase: function (object) { return object ? 'True' : 'False'; }
+  },
+  defaultStyle: 'lowercase'
+});
+
+function isHexCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
+         ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
+         ((0x61/* a */ <= c) && (c <= 0x66/* f */));
+}
+
+function isOctCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));
+}
+
+function isDecCode(c) {
+  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));
+}
+
+function resolveYamlInteger(data) {
+  if (data === null) return false;
+
+  var max = data.length,
+      index = 0,
+      hasDigits = false,
+      ch;
+
+  if (!max) return false;
+
+  ch = data[index];
+
+  // sign
+  if (ch === '-' || ch === '+') {
+    ch = data[++index];
+  }
+
+  if (ch === '0') {
+    // 0
+    if (index + 1 === max) return true;
+    ch = data[++index];
+
+    // base 2, base 8, base 16
+
+    if (ch === 'b') {
+      // base 2
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (ch !== '0' && ch !== '1') return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+
+
+    if (ch === 'x') {
+      // base 16
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (!isHexCode(data.charCodeAt(index))) return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+
+
+    if (ch === 'o') {
+      // base 8
+      index++;
+
+      for (; index < max; index++) {
+        ch = data[index];
+        if (ch === '_') continue;
+        if (!isOctCode(data.charCodeAt(index))) return false;
+        hasDigits = true;
+      }
+      return hasDigits && ch !== '_';
+    }
+  }
+
+  // base 10 (except 0)
+
+  // value should not start with `_`;
+  if (ch === '_') return false;
+
+  for (; index < max; index++) {
+    ch = data[index];
+    if (ch === '_') continue;
+    if (!isDecCode(data.charCodeAt(index))) {
+      return false;
+    }
+    hasDigits = true;
+  }
+
+  // Should have digits and should not end with `_`
+  if (!hasDigits || ch === '_') return false;
+
+  return true;
+}
+
+function constructYamlInteger(data) {
+  var value = data, sign = 1, ch;
+
+  if (value.indexOf('_') !== -1) {
+    value = value.replace(/_/g, '');
+  }
+
+  ch = value[0];
+
+  if (ch === '-' || ch === '+') {
+    if (ch === '-') sign = -1;
+    value = value.slice(1);
+    ch = value[0];
+  }
+
+  if (value === '0') return 0;
+
+  if (ch === '0') {
+    if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);
+    if (value[1] === 'x') return sign * parseInt(value.slice(2), 16);
+    if (value[1] === 'o') return sign * parseInt(value.slice(2), 8);
+  }
+
+  return sign * parseInt(value, 10);
+}
+
+function isInteger(object) {
+  return (Object.prototype.toString.call(object)) === '[object Number]' &&
+         (object % 1 === 0 && !common.isNegativeZero(object));
+}
+
+var int = new type('tag:yaml.org,2002:int', {
+  kind: 'scalar',
+  resolve: resolveYamlInteger,
+  construct: constructYamlInteger,
+  predicate: isInteger,
+  represent: {
+    binary:      function (obj) { return obj >= 0 ? '0b' + obj.toString(2) : '-0b' + obj.toString(2).slice(1); },
+    octal:       function (obj) { return obj >= 0 ? '0o'  + obj.toString(8) : '-0o'  + obj.toString(8).slice(1); },
+    decimal:     function (obj) { return obj.toString(10); },
+    /* eslint-disable max-len */
+    hexadecimal: function (obj) { return obj >= 0 ? '0x' + obj.toString(16).toUpperCase() :  '-0x' + obj.toString(16).toUpperCase().slice(1); }
+  },
+  defaultStyle: 'decimal',
+  styleAliases: {
+    binary:      [ 2,  'bin' ],
+    octal:       [ 8,  'oct' ],
+    decimal:     [ 10, 'dec' ],
+    hexadecimal: [ 16, 'hex' ]
+  }
+});
+
+var YAML_FLOAT_PATTERN = new RegExp(
+  // 2.5e4, 2.5 and integers
+  '^(?:[-+]?(?:[0-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
+  // .2e4, .2
+  // special case, seems not from spec
+  '|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
+  // .inf
+  '|[-+]?\\.(?:inf|Inf|INF)' +
+  // .nan
+  '|\\.(?:nan|NaN|NAN))$');
+
+function resolveYamlFloat(data) {
+  if (data === null) return false;
+
+  if (!YAML_FLOAT_PATTERN.test(data) ||
+      // Quick hack to not allow integers end with `_`
+      // Probably should update regexp & check speed
+      data[data.length - 1] === '_') {
+    return false;
+  }
+
+  return true;
+}
+
+function constructYamlFloat(data) {
+  var value, sign;
+
+  value  = data.replace(/_/g, '').toLowerCase();
+  sign   = value[0] === '-' ? -1 : 1;
+
+  if ('+-'.indexOf(value[0]) >= 0) {
+    value = value.slice(1);
+  }
+
+  if (value === '.inf') {
+    return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
+
+  } else if (value === '.nan') {
+    return NaN;
+  }
+  return sign * parseFloat(value, 10);
+}
+
+
+var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
+
+function representYamlFloat(object, style) {
+  var res;
+
+  if (isNaN(object)) {
+    switch (style) {
+      case 'lowercase': return '.nan';
+      case 'uppercase': return '.NAN';
+      case 'camelcase': return '.NaN';
+    }
+  } else if (Number.POSITIVE_INFINITY === object) {
+    switch (style) {
+      case 'lowercase': return '.inf';
+      case 'uppercase': return '.INF';
+      case 'camelcase': return '.Inf';
+    }
+  } else if (Number.NEGATIVE_INFINITY === object) {
+    switch (style) {
+      case 'lowercase': return '-.inf';
+      case 'uppercase': return '-.INF';
+      case 'camelcase': return '-.Inf';
+    }
+  } else if (common.isNegativeZero(object)) {
+    return '-0.0';
+  }
+
+  res = object.toString(10);
+
+  // JS stringifier can build scientific format without dots: 5e-100,
+  // while YAML requres dot: 5.e-100. Fix it with simple hack
+
+  return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;
+}
+
+function isFloat(object) {
+  return (Object.prototype.toString.call(object) === '[object Number]') &&
+         (object % 1 !== 0 || common.isNegativeZero(object));
+}
+
+var float = new type('tag:yaml.org,2002:float', {
+  kind: 'scalar',
+  resolve: resolveYamlFloat,
+  construct: constructYamlFloat,
+  predicate: isFloat,
+  represent: representYamlFloat,
+  defaultStyle: 'lowercase'
+});
+
+var json = failsafe.extend({
+  implicit: [
+    _null,
+    bool,
+    int,
+    float
+  ]
+});
+
+var core = json;
+
+var YAML_DATE_REGEXP = new RegExp(
+  '^([0-9][0-9][0-9][0-9])'          + // [1] year
+  '-([0-9][0-9])'                    + // [2] month
+  '-([0-9][0-9])$');                   // [3] day
+
+var YAML_TIMESTAMP_REGEXP = new RegExp(
+  '^([0-9][0-9][0-9][0-9])'          + // [1] year
+  '-([0-9][0-9]?)'                   + // [2] month
+  '-([0-9][0-9]?)'                   + // [3] day
+  '(?:[Tt]|[ \\t]+)'                 + // ...
+  '([0-9][0-9]?)'                    + // [4] hour
+  ':([0-9][0-9])'                    + // [5] minute
+  ':([0-9][0-9])'                    + // [6] second
+  '(?:\\.([0-9]*))?'                 + // [7] fraction
+  '(?:[ \\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour
+  '(?::([0-9][0-9]))?))?$');           // [11] tz_minute
+
+function resolveYamlTimestamp(data) {
+  if (data === null) return false;
+  if (YAML_DATE_REGEXP.exec(data) !== null) return true;
+  if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;
+  return false;
+}
+
+function constructYamlTimestamp(data) {
+  var match, year, month, day, hour, minute, second, fraction = 0,
+      delta = null, tz_hour, tz_minute, date;
+
+  match = YAML_DATE_REGEXP.exec(data);
+  if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);
+
+  if (match === null) throw new Error('Date resolve error');
+
+  // match: [1] year [2] month [3] day
+
+  year = +(match[1]);
+  month = +(match[2]) - 1; // JS month starts with 0
+  day = +(match[3]);
+
+  if (!match[4]) { // no hour
+    return new Date(Date.UTC(year, month, day));
+  }
+
+  // match: [4] hour [5] minute [6] second [7] fraction
+
+  hour = +(match[4]);
+  minute = +(match[5]);
+  second = +(match[6]);
+
+  if (match[7]) {
+    fraction = match[7].slice(0, 3);
+    while (fraction.length < 3) { // milli-seconds
+      fraction += '0';
+    }
+    fraction = +fraction;
+  }
+
+  // match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute
+
+  if (match[9]) {
+    tz_hour = +(match[10]);
+    tz_minute = +(match[11] || 0);
+    delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds
+    if (match[9] === '-') delta = -delta;
+  }
+
+  date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
+
+  if (delta) date.setTime(date.getTime() - delta);
+
+  return date;
+}
+
+function representYamlTimestamp(object /*, style*/) {
+  return object.toISOString();
+}
+
+var timestamp = new type('tag:yaml.org,2002:timestamp', {
+  kind: 'scalar',
+  resolve: resolveYamlTimestamp,
+  construct: constructYamlTimestamp,
+  instanceOf: Date,
+  represent: representYamlTimestamp
+});
+
+function resolveYamlMerge(data) {
+  return data === '<<' || data === null;
+}
+
+var merge = new type('tag:yaml.org,2002:merge', {
+  kind: 'scalar',
+  resolve: resolveYamlMerge
+});
+
+/*eslint-disable no-bitwise*/
+
+
+
+
+
+// [ 64, 65, 66 ] -> [ padding, CR, LF ]
+var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r';
+
+
+function resolveYamlBinary(data) {
+  if (data === null) return false;
+
+  var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;
+
+  // Convert one by one.
+  for (idx = 0; idx < max; idx++) {
+    code = map.indexOf(data.charAt(idx));
+
+    // Skip CR/LF
+    if (code > 64) continue;
+
+    // Fail on illegal characters
+    if (code < 0) return false;
+
+    bitlen += 6;
+  }
+
+  // If there are any bits left, source was corrupted
+  return (bitlen % 8) === 0;
+}
+
+function constructYamlBinary(data) {
+  var idx, tailbits,
+      input = data.replace(/[\r\n=]/g, ''), // remove CR/LF & padding to simplify scan
+      max = input.length,
+      map = BASE64_MAP,
+      bits = 0,
+      result = [];
+
+  // Collect by 6*4 bits (3 bytes)
+
+  for (idx = 0; idx < max; idx++) {
+    if ((idx % 4 === 0) && idx) {
+      result.push((bits >> 16) & 0xFF);
+      result.push((bits >> 8) & 0xFF);
+      result.push(bits & 0xFF);
+    }
+
+    bits = (bits << 6) | map.indexOf(input.charAt(idx));
+  }
+
+  // Dump tail
+
+  tailbits = (max % 4) * 6;
+
+  if (tailbits === 0) {
+    result.push((bits >> 16) & 0xFF);
+    result.push((bits >> 8) & 0xFF);
+    result.push(bits & 0xFF);
+  } else if (tailbits === 18) {
+    result.push((bits >> 10) & 0xFF);
+    result.push((bits >> 2) & 0xFF);
+  } else if (tailbits === 12) {
+    result.push((bits >> 4) & 0xFF);
+  }
+
+  return new Uint8Array(result);
+}
+
+function representYamlBinary(object /*, style*/) {
+  var result = '', bits = 0, idx, tail,
+      max = object.length,
+      map = BASE64_MAP;
+
+  // Convert every three bytes to 4 ASCII characters.
+
+  for (idx = 0; idx < max; idx++) {
+    if ((idx % 3 === 0) && idx) {
+      result += map[(bits >> 18) & 0x3F];
+      result += map[(bits >> 12) & 0x3F];
+      result += map[(bits >> 6) & 0x3F];
+      result += map[bits & 0x3F];
+    }
+
+    bits = (bits << 8) + object[idx];
+  }
+
+  // Dump tail
+
+  tail = max % 3;
+
+  if (tail === 0) {
+    result += map[(bits >> 18) & 0x3F];
+    result += map[(bits >> 12) & 0x3F];
+    result += map[(bits >> 6) & 0x3F];
+    result += map[bits & 0x3F];
+  } else if (tail === 2) {
+    result += map[(bits >> 10) & 0x3F];
+    result += map[(bits >> 4) & 0x3F];
+    result += map[(bits << 2) & 0x3F];
+    result += map[64];
+  } else if (tail === 1) {
+    result += map[(bits >> 2) & 0x3F];
+    result += map[(bits << 4) & 0x3F];
+    result += map[64];
+    result += map[64];
+  }
+
+  return result;
+}
+
+function isBinary(obj) {
+  return Object.prototype.toString.call(obj) ===  '[object Uint8Array]';
+}
+
+var binary = new type('tag:yaml.org,2002:binary', {
+  kind: 'scalar',
+  resolve: resolveYamlBinary,
+  construct: constructYamlBinary,
+  predicate: isBinary,
+  represent: representYamlBinary
+});
+
+var _hasOwnProperty$3 = Object.prototype.hasOwnProperty;
+var _toString$2       = Object.prototype.toString;
+
+function resolveYamlOmap(data) {
+  if (data === null) return true;
+
+  var objectKeys = [], index, length, pair, pairKey, pairHasKey,
+      object = data;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+    pairHasKey = false;
+
+    if (_toString$2.call(pair) !== '[object Object]') return false;
+
+    for (pairKey in pair) {
+      if (_hasOwnProperty$3.call(pair, pairKey)) {
+        if (!pairHasKey) pairHasKey = true;
+        else return false;
+      }
+    }
+
+    if (!pairHasKey) return false;
+
+    if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
+    else return false;
+  }
+
+  return true;
+}
+
+function constructYamlOmap(data) {
+  return data !== null ? data : [];
+}
+
+var omap = new type('tag:yaml.org,2002:omap', {
+  kind: 'sequence',
+  resolve: resolveYamlOmap,
+  construct: constructYamlOmap
+});
+
+var _toString$1 = Object.prototype.toString;
+
+function resolveYamlPairs(data) {
+  if (data === null) return true;
+
+  var index, length, pair, keys, result,
+      object = data;
+
+  result = new Array(object.length);
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+
+    if (_toString$1.call(pair) !== '[object Object]') return false;
+
+    keys = Object.keys(pair);
+
+    if (keys.length !== 1) return false;
+
+    result[index] = [ keys[0], pair[keys[0]] ];
+  }
+
+  return true;
+}
+
+function constructYamlPairs(data) {
+  if (data === null) return [];
+
+  var index, length, pair, keys, result,
+      object = data;
+
+  result = new Array(object.length);
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    pair = object[index];
+
+    keys = Object.keys(pair);
+
+    result[index] = [ keys[0], pair[keys[0]] ];
+  }
+
+  return result;
+}
+
+var pairs = new type('tag:yaml.org,2002:pairs', {
+  kind: 'sequence',
+  resolve: resolveYamlPairs,
+  construct: constructYamlPairs
+});
+
+var _hasOwnProperty$2 = Object.prototype.hasOwnProperty;
+
+function resolveYamlSet(data) {
+  if (data === null) return true;
+
+  var key, object = data;
+
+  for (key in object) {
+    if (_hasOwnProperty$2.call(object, key)) {
+      if (object[key] !== null) return false;
+    }
+  }
+
+  return true;
+}
+
+function constructYamlSet(data) {
+  return data !== null ? data : {};
+}
+
+var set = new type('tag:yaml.org,2002:set', {
+  kind: 'mapping',
+  resolve: resolveYamlSet,
+  construct: constructYamlSet
+});
+
+var _default = core.extend({
+  implicit: [
+    timestamp,
+    merge
+  ],
+  explicit: [
+    binary,
+    omap,
+    pairs,
+    set
+  ]
+});
+
+/*eslint-disable max-len,no-use-before-define*/
+
+
+
+
+
+
+
+var _hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+
+
+var CONTEXT_FLOW_IN   = 1;
+var CONTEXT_FLOW_OUT  = 2;
+var CONTEXT_BLOCK_IN  = 3;
+var CONTEXT_BLOCK_OUT = 4;
+
+
+var CHOMPING_CLIP  = 1;
+var CHOMPING_STRIP = 2;
+var CHOMPING_KEEP  = 3;
+
+
+var PATTERN_NON_PRINTABLE         = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
+var PATTERN_FLOW_INDICATORS       = /[,\[\]\{\}]/;
+var PATTERN_TAG_HANDLE            = /^(?:!|!!|![a-z\-]+!)$/i;
+var PATTERN_TAG_URI               = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
+
+
+function _class(obj) { return Object.prototype.toString.call(obj); }
+
+function is_EOL(c) {
+  return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);
+}
+
+function is_WHITE_SPACE(c) {
+  return (c === 0x09/* Tab */) || (c === 0x20/* Space */);
+}
+
+function is_WS_OR_EOL(c) {
+  return (c === 0x09/* Tab */) ||
+         (c === 0x20/* Space */) ||
+         (c === 0x0A/* LF */) ||
+         (c === 0x0D/* CR */);
+}
+
+function is_FLOW_INDICATOR(c) {
+  return c === 0x2C/* , */ ||
+         c === 0x5B/* [ */ ||
+         c === 0x5D/* ] */ ||
+         c === 0x7B/* { */ ||
+         c === 0x7D/* } */;
+}
+
+function fromHexCode(c) {
+  var lc;
+
+  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
+    return c - 0x30;
+  }
+
+  /*eslint-disable no-bitwise*/
+  lc = c | 0x20;
+
+  if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {
+    return lc - 0x61 + 10;
+  }
+
+  return -1;
+}
+
+function escapedHexLen(c) {
+  if (c === 0x78/* x */) { return 2; }
+  if (c === 0x75/* u */) { return 4; }
+  if (c === 0x55/* U */) { return 8; }
+  return 0;
+}
+
+function fromDecimalCode(c) {
+  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
+    return c - 0x30;
+  }
+
+  return -1;
+}
+
+function simpleEscapeSequence(c) {
+  /* eslint-disable indent */
+  return (c === 0x30/* 0 */) ? '\x00' :
+        (c === 0x61/* a */) ? '\x07' :
+        (c === 0x62/* b */) ? '\x08' :
+        (c === 0x74/* t */) ? '\x09' :
+        (c === 0x09/* Tab */) ? '\x09' :
+        (c === 0x6E/* n */) ? '\x0A' :
+        (c === 0x76/* v */) ? '\x0B' :
+        (c === 0x66/* f */) ? '\x0C' :
+        (c === 0x72/* r */) ? '\x0D' :
+        (c === 0x65/* e */) ? '\x1B' :
+        (c === 0x20/* Space */) ? ' ' :
+        (c === 0x22/* " */) ? '\x22' :
+        (c === 0x2F/* / */) ? '/' :
+        (c === 0x5C/* \ */) ? '\x5C' :
+        (c === 0x4E/* N */) ? '\x85' :
+        (c === 0x5F/* _ */) ? '\xA0' :
+        (c === 0x4C/* L */) ? '\u2028' :
+        (c === 0x50/* P */) ? '\u2029' : '';
+}
+
+function charFromCodepoint(c) {
+  if (c <= 0xFFFF) {
+    return String.fromCharCode(c);
+  }
+  // Encode UTF-16 surrogate pair
+  // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
+  return String.fromCharCode(
+    ((c - 0x010000) >> 10) + 0xD800,
+    ((c - 0x010000) & 0x03FF) + 0xDC00
+  );
+}
+
+var simpleEscapeCheck = new Array(256); // integer, for fast access
+var simpleEscapeMap = new Array(256);
+for (var i = 0; i < 256; i++) {
+  simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
+  simpleEscapeMap[i] = simpleEscapeSequence(i);
+}
+
+
+function State$1(input, options) {
+  this.input = input;
+
+  this.filename  = options['filename']  || null;
+  this.schema    = options['schema']    || _default;
+  this.onWarning = options['onWarning'] || null;
+  // (Hidden) Remove? makes the loader to expect YAML 1.1 documents
+  // if such documents have no explicit %YAML directive
+  this.legacy    = options['legacy']    || false;
+
+  this.json      = options['json']      || false;
+  this.listener  = options['listener']  || null;
+
+  this.implicitTypes = this.schema.compiledImplicit;
+  this.typeMap       = this.schema.compiledTypeMap;
+
+  this.length     = input.length;
+  this.position   = 0;
+  this.line       = 0;
+  this.lineStart  = 0;
+  this.lineIndent = 0;
+
+  // position of first leading tab in the current line,
+  // used to make sure there are no tabs in the indentation
+  this.firstTabInLine = -1;
+
+  this.documents = [];
+
+  /*
+  this.version;
+  this.checkLineBreaks;
+  this.tagMap;
+  this.anchorMap;
+  this.tag;
+  this.anchor;
+  this.kind;
+  this.result;*/
+
+}
+
+
+function generateError(state, message) {
+  var mark = {
+    name:     state.filename,
+    buffer:   state.input.slice(0, -1), // omit trailing \0
+    position: state.position,
+    line:     state.line,
+    column:   state.position - state.lineStart
+  };
+
+  mark.snippet = snippet(mark);
+
+  return new exception(message, mark);
+}
+
+function throwError(state, message) {
+  throw generateError(state, message);
+}
+
+function throwWarning(state, message) {
+  if (state.onWarning) {
+    state.onWarning.call(null, generateError(state, message));
+  }
+}
+
+
+var directiveHandlers = {
+
+  YAML: function handleYamlDirective(state, name, args) {
+
+    var match, major, minor;
+
+    if (state.version !== null) {
+      throwError(state, 'duplication of %YAML directive');
+    }
+
+    if (args.length !== 1) {
+      throwError(state, 'YAML directive accepts exactly one argument');
+    }
+
+    match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
+
+    if (match === null) {
+      throwError(state, 'ill-formed argument of the YAML directive');
+    }
+
+    major = parseInt(match[1], 10);
+    minor = parseInt(match[2], 10);
+
+    if (major !== 1) {
+      throwError(state, 'unacceptable YAML version of the document');
+    }
+
+    state.version = args[0];
+    state.checkLineBreaks = (minor < 2);
+
+    if (minor !== 1 && minor !== 2) {
+      throwWarning(state, 'unsupported YAML version of the document');
+    }
+  },
+
+  TAG: function handleTagDirective(state, name, args) {
+
+    var handle, prefix;
+
+    if (args.length !== 2) {
+      throwError(state, 'TAG directive accepts exactly two arguments');
+    }
+
+    handle = args[0];
+    prefix = args[1];
+
+    if (!PATTERN_TAG_HANDLE.test(handle)) {
+      throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
+    }
+
+    if (_hasOwnProperty$1.call(state.tagMap, handle)) {
+      throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
+    }
+
+    if (!PATTERN_TAG_URI.test(prefix)) {
+      throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
+    }
+
+    try {
+      prefix = decodeURIComponent(prefix);
+    } catch (err) {
+      throwError(state, 'tag prefix is malformed: ' + prefix);
+    }
+
+    state.tagMap[handle] = prefix;
+  }
+};
+
+
+function captureSegment(state, start, end, checkJson) {
+  var _position, _length, _character, _result;
+
+  if (start < end) {
+    _result = state.input.slice(start, end);
+
+    if (checkJson) {
+      for (_position = 0, _length = _result.length; _position < _length; _position += 1) {
+        _character = _result.charCodeAt(_position);
+        if (!(_character === 0x09 ||
+              (0x20 <= _character && _character <= 0x10FFFF))) {
+          throwError(state, 'expected valid JSON character');
+        }
+      }
+    } else if (PATTERN_NON_PRINTABLE.test(_result)) {
+      throwError(state, 'the stream contains non-printable characters');
+    }
+
+    state.result += _result;
+  }
+}
+
+function mergeMappings(state, destination, source, overridableKeys) {
+  var sourceKeys, key, index, quantity;
+
+  if (!common.isObject(source)) {
+    throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
+  }
+
+  sourceKeys = Object.keys(source);
+
+  for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
+    key = sourceKeys[index];
+
+    if (!_hasOwnProperty$1.call(destination, key)) {
+      destination[key] = source[key];
+      overridableKeys[key] = true;
+    }
+  }
+}
+
+function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode,
+  startLine, startLineStart, startPos) {
+
+  var index, quantity;
+
+  // The output is a plain object here, so keys can only be strings.
+  // We need to convert keyNode to a string, but doing so can hang the process
+  // (deeply nested arrays that explode exponentially using aliases).
+  if (Array.isArray(keyNode)) {
+    keyNode = Array.prototype.slice.call(keyNode);
+
+    for (index = 0, quantity = keyNode.length; index < quantity; index += 1) {
+      if (Array.isArray(keyNode[index])) {
+        throwError(state, 'nested arrays are not supported inside keys');
+      }
+
+      if (typeof keyNode === 'object' && _class(keyNode[index]) === '[object Object]') {
+        keyNode[index] = '[object Object]';
+      }
+    }
+  }
+
+  // Avoid code execution in load() via toString property
+  // (still use its own toString for arrays, timestamps,
+  // and whatever user schema extensions happen to have @@toStringTag)
+  if (typeof keyNode === 'object' && _class(keyNode) === '[object Object]') {
+    keyNode = '[object Object]';
+  }
+
+
+  keyNode = String(keyNode);
+
+  if (_result === null) {
+    _result = {};
+  }
+
+  if (keyTag === 'tag:yaml.org,2002:merge') {
+    if (Array.isArray(valueNode)) {
+      for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
+        mergeMappings(state, _result, valueNode[index], overridableKeys);
+      }
+    } else {
+      mergeMappings(state, _result, valueNode, overridableKeys);
+    }
+  } else {
+    if (!state.json &&
+        !_hasOwnProperty$1.call(overridableKeys, keyNode) &&
+        _hasOwnProperty$1.call(_result, keyNode)) {
+      state.line = startLine || state.line;
+      state.lineStart = startLineStart || state.lineStart;
+      state.position = startPos || state.position;
+      throwError(state, 'duplicated mapping key');
+    }
+
+    // used for this specific key only because Object.defineProperty is slow
+    if (keyNode === '__proto__') {
+      Object.defineProperty(_result, keyNode, {
+        configurable: true,
+        enumerable: true,
+        writable: true,
+        value: valueNode
+      });
+    } else {
+      _result[keyNode] = valueNode;
+    }
+    delete overridableKeys[keyNode];
+  }
+
+  return _result;
+}
+
+function readLineBreak(state) {
+  var ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x0A/* LF */) {
+    state.position++;
+  } else if (ch === 0x0D/* CR */) {
+    state.position++;
+    if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {
+      state.position++;
+    }
+  } else {
+    throwError(state, 'a line break is expected');
+  }
+
+  state.line += 1;
+  state.lineStart = state.position;
+  state.firstTabInLine = -1;
+}
+
+function skipSeparationSpace(state, allowComments, checkIndent) {
+  var lineBreaks = 0,
+      ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    while (is_WHITE_SPACE(ch)) {
+      if (ch === 0x09/* Tab */ && state.firstTabInLine === -1) {
+        state.firstTabInLine = state.position;
+      }
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    if (allowComments && ch === 0x23/* # */) {
+      do {
+        ch = state.input.charCodeAt(++state.position);
+      } while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);
+    }
+
+    if (is_EOL(ch)) {
+      readLineBreak(state);
+
+      ch = state.input.charCodeAt(state.position);
+      lineBreaks++;
+      state.lineIndent = 0;
+
+      while (ch === 0x20/* Space */) {
+        state.lineIndent++;
+        ch = state.input.charCodeAt(++state.position);
+      }
+    } else {
+      break;
+    }
+  }
+
+  if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
+    throwWarning(state, 'deficient indentation');
+  }
+
+  return lineBreaks;
+}
+
+function testDocumentSeparator(state) {
+  var _position = state.position,
+      ch;
+
+  ch = state.input.charCodeAt(_position);
+
+  // Condition state.position === state.lineStart is tested
+  // in parent on each call, for efficiency. No needs to test here again.
+  if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&
+      ch === state.input.charCodeAt(_position + 1) &&
+      ch === state.input.charCodeAt(_position + 2)) {
+
+    _position += 3;
+
+    ch = state.input.charCodeAt(_position);
+
+    if (ch === 0 || is_WS_OR_EOL(ch)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+function writeFoldedLines(state, count) {
+  if (count === 1) {
+    state.result += ' ';
+  } else if (count > 1) {
+    state.result += common.repeat('\n', count - 1);
+  }
+}
+
+
+function readPlainScalar(state, nodeIndent, withinFlowCollection) {
+  var preceding,
+      following,
+      captureStart,
+      captureEnd,
+      hasPendingContent,
+      _line,
+      _lineStart,
+      _lineIndent,
+      _kind = state.kind,
+      _result = state.result,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (is_WS_OR_EOL(ch)      ||
+      is_FLOW_INDICATOR(ch) ||
+      ch === 0x23/* # */    ||
+      ch === 0x26/* & */    ||
+      ch === 0x2A/* * */    ||
+      ch === 0x21/* ! */    ||
+      ch === 0x7C/* | */    ||
+      ch === 0x3E/* > */    ||
+      ch === 0x27/* ' */    ||
+      ch === 0x22/* " */    ||
+      ch === 0x25/* % */    ||
+      ch === 0x40/* @ */    ||
+      ch === 0x60/* ` */) {
+    return false;
+  }
+
+  if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {
+    following = state.input.charCodeAt(state.position + 1);
+
+    if (is_WS_OR_EOL(following) ||
+        withinFlowCollection && is_FLOW_INDICATOR(following)) {
+      return false;
+    }
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  captureStart = captureEnd = state.position;
+  hasPendingContent = false;
+
+  while (ch !== 0) {
+    if (ch === 0x3A/* : */) {
+      following = state.input.charCodeAt(state.position + 1);
+
+      if (is_WS_OR_EOL(following) ||
+          withinFlowCollection && is_FLOW_INDICATOR(following)) {
+        break;
+      }
+
+    } else if (ch === 0x23/* # */) {
+      preceding = state.input.charCodeAt(state.position - 1);
+
+      if (is_WS_OR_EOL(preceding)) {
+        break;
+      }
+
+    } else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
+               withinFlowCollection && is_FLOW_INDICATOR(ch)) {
+      break;
+
+    } else if (is_EOL(ch)) {
+      _line = state.line;
+      _lineStart = state.lineStart;
+      _lineIndent = state.lineIndent;
+      skipSeparationSpace(state, false, -1);
+
+      if (state.lineIndent >= nodeIndent) {
+        hasPendingContent = true;
+        ch = state.input.charCodeAt(state.position);
+        continue;
+      } else {
+        state.position = captureEnd;
+        state.line = _line;
+        state.lineStart = _lineStart;
+        state.lineIndent = _lineIndent;
+        break;
+      }
+    }
+
+    if (hasPendingContent) {
+      captureSegment(state, captureStart, captureEnd, false);
+      writeFoldedLines(state, state.line - _line);
+      captureStart = captureEnd = state.position;
+      hasPendingContent = false;
+    }
+
+    if (!is_WHITE_SPACE(ch)) {
+      captureEnd = state.position + 1;
+    }
+
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  captureSegment(state, captureStart, captureEnd, false);
+
+  if (state.result) {
+    return true;
+  }
+
+  state.kind = _kind;
+  state.result = _result;
+  return false;
+}
+
+function readSingleQuotedScalar(state, nodeIndent) {
+  var ch,
+      captureStart, captureEnd;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x27/* ' */) {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  state.position++;
+  captureStart = captureEnd = state.position;
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    if (ch === 0x27/* ' */) {
+      captureSegment(state, captureStart, state.position, true);
+      ch = state.input.charCodeAt(++state.position);
+
+      if (ch === 0x27/* ' */) {
+        captureStart = state.position;
+        state.position++;
+        captureEnd = state.position;
+      } else {
+        return true;
+      }
+
+    } else if (is_EOL(ch)) {
+      captureSegment(state, captureStart, captureEnd, true);
+      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
+      captureStart = captureEnd = state.position;
+
+    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
+      throwError(state, 'unexpected end of the document within a single quoted scalar');
+
+    } else {
+      state.position++;
+      captureEnd = state.position;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a single quoted scalar');
+}
+
+function readDoubleQuotedScalar(state, nodeIndent) {
+  var captureStart,
+      captureEnd,
+      hexLength,
+      hexResult,
+      tmp,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x22/* " */) {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+  state.position++;
+  captureStart = captureEnd = state.position;
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    if (ch === 0x22/* " */) {
+      captureSegment(state, captureStart, state.position, true);
+      state.position++;
+      return true;
+
+    } else if (ch === 0x5C/* \ */) {
+      captureSegment(state, captureStart, state.position, true);
+      ch = state.input.charCodeAt(++state.position);
+
+      if (is_EOL(ch)) {
+        skipSeparationSpace(state, false, nodeIndent);
+
+        // TODO: rework to inline fn with no type cast?
+      } else if (ch < 256 && simpleEscapeCheck[ch]) {
+        state.result += simpleEscapeMap[ch];
+        state.position++;
+
+      } else if ((tmp = escapedHexLen(ch)) > 0) {
+        hexLength = tmp;
+        hexResult = 0;
+
+        for (; hexLength > 0; hexLength--) {
+          ch = state.input.charCodeAt(++state.position);
+
+          if ((tmp = fromHexCode(ch)) >= 0) {
+            hexResult = (hexResult << 4) + tmp;
+
+          } else {
+            throwError(state, 'expected hexadecimal character');
+          }
+        }
+
+        state.result += charFromCodepoint(hexResult);
+
+        state.position++;
+
+      } else {
+        throwError(state, 'unknown escape sequence');
+      }
+
+      captureStart = captureEnd = state.position;
+
+    } else if (is_EOL(ch)) {
+      captureSegment(state, captureStart, captureEnd, true);
+      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
+      captureStart = captureEnd = state.position;
+
+    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
+      throwError(state, 'unexpected end of the document within a double quoted scalar');
+
+    } else {
+      state.position++;
+      captureEnd = state.position;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a double quoted scalar');
+}
+
+function readFlowCollection(state, nodeIndent) {
+  var readNext = true,
+      _line,
+      _lineStart,
+      _pos,
+      _tag     = state.tag,
+      _result,
+      _anchor  = state.anchor,
+      following,
+      terminator,
+      isPair,
+      isExplicitPair,
+      isMapping,
+      overridableKeys = Object.create(null),
+      keyNode,
+      keyTag,
+      valueNode,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x5B/* [ */) {
+    terminator = 0x5D;/* ] */
+    isMapping = false;
+    _result = [];
+  } else if (ch === 0x7B/* { */) {
+    terminator = 0x7D;/* } */
+    isMapping = true;
+    _result = {};
+  } else {
+    return false;
+  }
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+
+  while (ch !== 0) {
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (ch === terminator) {
+      state.position++;
+      state.tag = _tag;
+      state.anchor = _anchor;
+      state.kind = isMapping ? 'mapping' : 'sequence';
+      state.result = _result;
+      return true;
+    } else if (!readNext) {
+      throwError(state, 'missed comma between flow collection entries');
+    } else if (ch === 0x2C/* , */) {
+      // "flow collection entries can never be completely empty", as per YAML 1.2, section 7.4
+      throwError(state, "expected the node content, but found ','");
+    }
+
+    keyTag = keyNode = valueNode = null;
+    isPair = isExplicitPair = false;
+
+    if (ch === 0x3F/* ? */) {
+      following = state.input.charCodeAt(state.position + 1);
+
+      if (is_WS_OR_EOL(following)) {
+        isPair = isExplicitPair = true;
+        state.position++;
+        skipSeparationSpace(state, true, nodeIndent);
+      }
+    }
+
+    _line = state.line; // Save the current line.
+    _lineStart = state.lineStart;
+    _pos = state.position;
+    composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
+    keyTag = state.tag;
+    keyNode = state.result;
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if ((isExplicitPair || state.line === _line) && ch === 0x3A/* : */) {
+      isPair = true;
+      ch = state.input.charCodeAt(++state.position);
+      skipSeparationSpace(state, true, nodeIndent);
+      composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
+      valueNode = state.result;
+    }
+
+    if (isMapping) {
+      storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos);
+    } else if (isPair) {
+      _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos));
+    } else {
+      _result.push(keyNode);
+    }
+
+    skipSeparationSpace(state, true, nodeIndent);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (ch === 0x2C/* , */) {
+      readNext = true;
+      ch = state.input.charCodeAt(++state.position);
+    } else {
+      readNext = false;
+    }
+  }
+
+  throwError(state, 'unexpected end of the stream within a flow collection');
+}
+
+function readBlockScalar(state, nodeIndent) {
+  var captureStart,
+      folding,
+      chomping       = CHOMPING_CLIP,
+      didReadContent = false,
+      detectedIndent = false,
+      textIndent     = nodeIndent,
+      emptyLines     = 0,
+      atMoreIndented = false,
+      tmp,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch === 0x7C/* | */) {
+    folding = false;
+  } else if (ch === 0x3E/* > */) {
+    folding = true;
+  } else {
+    return false;
+  }
+
+  state.kind = 'scalar';
+  state.result = '';
+
+  while (ch !== 0) {
+    ch = state.input.charCodeAt(++state.position);
+
+    if (ch === 0x2B/* + */ || ch === 0x2D/* - */) {
+      if (CHOMPING_CLIP === chomping) {
+        chomping = (ch === 0x2B/* + */) ? CHOMPING_KEEP : CHOMPING_STRIP;
+      } else {
+        throwError(state, 'repeat of a chomping mode identifier');
+      }
+
+    } else if ((tmp = fromDecimalCode(ch)) >= 0) {
+      if (tmp === 0) {
+        throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');
+      } else if (!detectedIndent) {
+        textIndent = nodeIndent + tmp - 1;
+        detectedIndent = true;
+      } else {
+        throwError(state, 'repeat of an indentation width identifier');
+      }
+
+    } else {
+      break;
+    }
+  }
+
+  if (is_WHITE_SPACE(ch)) {
+    do { ch = state.input.charCodeAt(++state.position); }
+    while (is_WHITE_SPACE(ch));
+
+    if (ch === 0x23/* # */) {
+      do { ch = state.input.charCodeAt(++state.position); }
+      while (!is_EOL(ch) && (ch !== 0));
+    }
+  }
+
+  while (ch !== 0) {
+    readLineBreak(state);
+    state.lineIndent = 0;
+
+    ch = state.input.charCodeAt(state.position);
+
+    while ((!detectedIndent || state.lineIndent < textIndent) &&
+           (ch === 0x20/* Space */)) {
+      state.lineIndent++;
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    if (!detectedIndent && state.lineIndent > textIndent) {
+      textIndent = state.lineIndent;
+    }
+
+    if (is_EOL(ch)) {
+      emptyLines++;
+      continue;
+    }
+
+    // End of the scalar.
+    if (state.lineIndent < textIndent) {
+
+      // Perform the chomping.
+      if (chomping === CHOMPING_KEEP) {
+        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+      } else if (chomping === CHOMPING_CLIP) {
+        if (didReadContent) { // i.e. only if the scalar is not empty.
+          state.result += '\n';
+        }
+      }
+
+      // Break this `while` cycle and go to the funciton's epilogue.
+      break;
+    }
+
+    // Folded style: use fancy rules to handle line breaks.
+    if (folding) {
+
+      // Lines starting with white space characters (more-indented lines) are not folded.
+      if (is_WHITE_SPACE(ch)) {
+        atMoreIndented = true;
+        // except for the first content line (cf. Example 8.1)
+        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+
+      // End of more-indented block.
+      } else if (atMoreIndented) {
+        atMoreIndented = false;
+        state.result += common.repeat('\n', emptyLines + 1);
+
+      // Just one line break - perceive as the same line.
+      } else if (emptyLines === 0) {
+        if (didReadContent) { // i.e. only if we have already read some scalar content.
+          state.result += ' ';
+        }
+
+      // Several line breaks - perceive as different lines.
+      } else {
+        state.result += common.repeat('\n', emptyLines);
+      }
+
+    // Literal style: just add exact number of line breaks between content lines.
+    } else {
+      // Keep all line breaks except the header line break.
+      state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
+    }
+
+    didReadContent = true;
+    detectedIndent = true;
+    emptyLines = 0;
+    captureStart = state.position;
+
+    while (!is_EOL(ch) && (ch !== 0)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    captureSegment(state, captureStart, state.position, false);
+  }
+
+  return true;
+}
+
+function readBlockSequence(state, nodeIndent) {
+  var _line,
+      _tag      = state.tag,
+      _anchor   = state.anchor,
+      _result   = [],
+      following,
+      detected  = false,
+      ch;
+
+  // there is a leading tab before this token, so it can't be a block sequence/mapping;
+  // it can still be flow sequence/mapping or a scalar
+  if (state.firstTabInLine !== -1) return false;
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    if (state.firstTabInLine !== -1) {
+      state.position = state.firstTabInLine;
+      throwError(state, 'tab characters must not be used in indentation');
+    }
+
+    if (ch !== 0x2D/* - */) {
+      break;
+    }
+
+    following = state.input.charCodeAt(state.position + 1);
+
+    if (!is_WS_OR_EOL(following)) {
+      break;
+    }
+
+    detected = true;
+    state.position++;
+
+    if (skipSeparationSpace(state, true, -1)) {
+      if (state.lineIndent <= nodeIndent) {
+        _result.push(null);
+        ch = state.input.charCodeAt(state.position);
+        continue;
+      }
+    }
+
+    _line = state.line;
+    composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
+    _result.push(state.result);
+    skipSeparationSpace(state, true, -1);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
+      throwError(state, 'bad indentation of a sequence entry');
+    } else if (state.lineIndent < nodeIndent) {
+      break;
+    }
+  }
+
+  if (detected) {
+    state.tag = _tag;
+    state.anchor = _anchor;
+    state.kind = 'sequence';
+    state.result = _result;
+    return true;
+  }
+  return false;
+}
+
+function readBlockMapping(state, nodeIndent, flowIndent) {
+  var following,
+      allowCompact,
+      _line,
+      _keyLine,
+      _keyLineStart,
+      _keyPos,
+      _tag          = state.tag,
+      _anchor       = state.anchor,
+      _result       = {},
+      overridableKeys = Object.create(null),
+      keyTag        = null,
+      keyNode       = null,
+      valueNode     = null,
+      atExplicitKey = false,
+      detected      = false,
+      ch;
+
+  // there is a leading tab before this token, so it can't be a block sequence/mapping;
+  // it can still be flow sequence/mapping or a scalar
+  if (state.firstTabInLine !== -1) return false;
+
+  if (state.anchor !== null) {
+    state.anchorMap[state.anchor] = _result;
+  }
+
+  ch = state.input.charCodeAt(state.position);
+
+  while (ch !== 0) {
+    if (!atExplicitKey && state.firstTabInLine !== -1) {
+      state.position = state.firstTabInLine;
+      throwError(state, 'tab characters must not be used in indentation');
+    }
+
+    following = state.input.charCodeAt(state.position + 1);
+    _line = state.line; // Save the current line.
+
+    //
+    // Explicit notation case. There are two separate blocks:
+    // first for the key (denoted by "?") and second for the value (denoted by ":")
+    //
+    if ((ch === 0x3F/* ? */ || ch === 0x3A/* : */) && is_WS_OR_EOL(following)) {
+
+      if (ch === 0x3F/* ? */) {
+        if (atExplicitKey) {
+          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
+          keyTag = keyNode = valueNode = null;
+        }
+
+        detected = true;
+        atExplicitKey = true;
+        allowCompact = true;
+
+      } else if (atExplicitKey) {
+        // i.e. 0x3A/* : */ === character after the explicit key.
+        atExplicitKey = false;
+        allowCompact = true;
+
+      } else {
+        throwError(state, 'incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line');
+      }
+
+      state.position += 1;
+      ch = following;
+
+    //
+    // Implicit notation case. Flow-style node as the key first, then ":", and the value.
+    //
+    } else {
+      _keyLine = state.line;
+      _keyLineStart = state.lineStart;
+      _keyPos = state.position;
+
+      if (!composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {
+        // Neither implicit nor explicit notation.
+        // Reading is done. Go to the epilogue.
+        break;
+      }
+
+      if (state.line === _line) {
+        ch = state.input.charCodeAt(state.position);
+
+        while (is_WHITE_SPACE(ch)) {
+          ch = state.input.charCodeAt(++state.position);
+        }
+
+        if (ch === 0x3A/* : */) {
+          ch = state.input.charCodeAt(++state.position);
+
+          if (!is_WS_OR_EOL(ch)) {
+            throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');
+          }
+
+          if (atExplicitKey) {
+            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
+            keyTag = keyNode = valueNode = null;
+          }
+
+          detected = true;
+          atExplicitKey = false;
+          allowCompact = false;
+          keyTag = state.tag;
+          keyNode = state.result;
+
+        } else if (detected) {
+          throwError(state, 'can not read an implicit mapping pair; a colon is missed');
+
+        } else {
+          state.tag = _tag;
+          state.anchor = _anchor;
+          return true; // Keep the result of `composeNode`.
+        }
+
+      } else if (detected) {
+        throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');
+
+      } else {
+        state.tag = _tag;
+        state.anchor = _anchor;
+        return true; // Keep the result of `composeNode`.
+      }
+    }
+
+    //
+    // Common reading code for both explicit and implicit notations.
+    //
+    if (state.line === _line || state.lineIndent > nodeIndent) {
+      if (atExplicitKey) {
+        _keyLine = state.line;
+        _keyLineStart = state.lineStart;
+        _keyPos = state.position;
+      }
+
+      if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
+        if (atExplicitKey) {
+          keyNode = state.result;
+        } else {
+          valueNode = state.result;
+        }
+      }
+
+      if (!atExplicitKey) {
+        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _keyLine, _keyLineStart, _keyPos);
+        keyTag = keyNode = valueNode = null;
+      }
+
+      skipSeparationSpace(state, true, -1);
+      ch = state.input.charCodeAt(state.position);
+    }
+
+    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
+      throwError(state, 'bad indentation of a mapping entry');
+    } else if (state.lineIndent < nodeIndent) {
+      break;
+    }
+  }
+
+  //
+  // Epilogue.
+  //
+
+  // Special case: last mapping's node contains only the key in explicit notation.
+  if (atExplicitKey) {
+    storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
+  }
+
+  // Expose the resulting mapping.
+  if (detected) {
+    state.tag = _tag;
+    state.anchor = _anchor;
+    state.kind = 'mapping';
+    state.result = _result;
+  }
+
+  return detected;
+}
+
+function readTagProperty(state) {
+  var _position,
+      isVerbatim = false,
+      isNamed    = false,
+      tagHandle,
+      tagName,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x21/* ! */) return false;
+
+  if (state.tag !== null) {
+    throwError(state, 'duplication of a tag property');
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+
+  if (ch === 0x3C/* < */) {
+    isVerbatim = true;
+    ch = state.input.charCodeAt(++state.position);
+
+  } else if (ch === 0x21/* ! */) {
+    isNamed = true;
+    tagHandle = '!!';
+    ch = state.input.charCodeAt(++state.position);
+
+  } else {
+    tagHandle = '!';
+  }
+
+  _position = state.position;
+
+  if (isVerbatim) {
+    do { ch = state.input.charCodeAt(++state.position); }
+    while (ch !== 0 && ch !== 0x3E/* > */);
+
+    if (state.position < state.length) {
+      tagName = state.input.slice(_position, state.position);
+      ch = state.input.charCodeAt(++state.position);
+    } else {
+      throwError(state, 'unexpected end of the stream within a verbatim tag');
+    }
+  } else {
+    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+
+      if (ch === 0x21/* ! */) {
+        if (!isNamed) {
+          tagHandle = state.input.slice(_position - 1, state.position + 1);
+
+          if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
+            throwError(state, 'named tag handle cannot contain such characters');
+          }
+
+          isNamed = true;
+          _position = state.position + 1;
+        } else {
+          throwError(state, 'tag suffix cannot contain exclamation marks');
+        }
+      }
+
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    tagName = state.input.slice(_position, state.position);
+
+    if (PATTERN_FLOW_INDICATORS.test(tagName)) {
+      throwError(state, 'tag suffix cannot contain flow indicator characters');
+    }
+  }
+
+  if (tagName && !PATTERN_TAG_URI.test(tagName)) {
+    throwError(state, 'tag name cannot contain such characters: ' + tagName);
+  }
+
+  try {
+    tagName = decodeURIComponent(tagName);
+  } catch (err) {
+    throwError(state, 'tag name is malformed: ' + tagName);
+  }
+
+  if (isVerbatim) {
+    state.tag = tagName;
+
+  } else if (_hasOwnProperty$1.call(state.tagMap, tagHandle)) {
+    state.tag = state.tagMap[tagHandle] + tagName;
+
+  } else if (tagHandle === '!') {
+    state.tag = '!' + tagName;
+
+  } else if (tagHandle === '!!') {
+    state.tag = 'tag:yaml.org,2002:' + tagName;
+
+  } else {
+    throwError(state, 'undeclared tag handle "' + tagHandle + '"');
+  }
+
+  return true;
+}
+
+function readAnchorProperty(state) {
+  var _position,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x26/* & */) return false;
+
+  if (state.anchor !== null) {
+    throwError(state, 'duplication of an anchor property');
+  }
+
+  ch = state.input.charCodeAt(++state.position);
+  _position = state.position;
+
+  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  if (state.position === _position) {
+    throwError(state, 'name of an anchor node must contain at least one character');
+  }
+
+  state.anchor = state.input.slice(_position, state.position);
+  return true;
+}
+
+function readAlias(state) {
+  var _position, alias,
+      ch;
+
+  ch = state.input.charCodeAt(state.position);
+
+  if (ch !== 0x2A/* * */) return false;
+
+  ch = state.input.charCodeAt(++state.position);
+  _position = state.position;
+
+  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
+    ch = state.input.charCodeAt(++state.position);
+  }
+
+  if (state.position === _position) {
+    throwError(state, 'name of an alias node must contain at least one character');
+  }
+
+  alias = state.input.slice(_position, state.position);
+
+  if (!_hasOwnProperty$1.call(state.anchorMap, alias)) {
+    throwError(state, 'unidentified alias "' + alias + '"');
+  }
+
+  state.result = state.anchorMap[alias];
+  skipSeparationSpace(state, true, -1);
+  return true;
+}
+
+function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
+  var allowBlockStyles,
+      allowBlockScalars,
+      allowBlockCollections,
+      indentStatus = 1, // 1: this>parent, 0: this=parent, -1: this<parent
+      atNewLine  = false,
+      hasContent = false,
+      typeIndex,
+      typeQuantity,
+      typeList,
+      type,
+      flowIndent,
+      blockIndent;
+
+  if (state.listener !== null) {
+    state.listener('open', state);
+  }
+
+  state.tag    = null;
+  state.anchor = null;
+  state.kind   = null;
+  state.result = null;
+
+  allowBlockStyles = allowBlockScalars = allowBlockCollections =
+    CONTEXT_BLOCK_OUT === nodeContext ||
+    CONTEXT_BLOCK_IN  === nodeContext;
+
+  if (allowToSeek) {
+    if (skipSeparationSpace(state, true, -1)) {
+      atNewLine = true;
+
+      if (state.lineIndent > parentIndent) {
+        indentStatus = 1;
+      } else if (state.lineIndent === parentIndent) {
+        indentStatus = 0;
+      } else if (state.lineIndent < parentIndent) {
+        indentStatus = -1;
+      }
+    }
+  }
+
+  if (indentStatus === 1) {
+    while (readTagProperty(state) || readAnchorProperty(state)) {
+      if (skipSeparationSpace(state, true, -1)) {
+        atNewLine = true;
+        allowBlockCollections = allowBlockStyles;
+
+        if (state.lineIndent > parentIndent) {
+          indentStatus = 1;
+        } else if (state.lineIndent === parentIndent) {
+          indentStatus = 0;
+        } else if (state.lineIndent < parentIndent) {
+          indentStatus = -1;
+        }
+      } else {
+        allowBlockCollections = false;
+      }
+    }
+  }
+
+  if (allowBlockCollections) {
+    allowBlockCollections = atNewLine || allowCompact;
+  }
+
+  if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {
+    if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
+      flowIndent = parentIndent;
+    } else {
+      flowIndent = parentIndent + 1;
+    }
+
+    blockIndent = state.position - state.lineStart;
+
+    if (indentStatus === 1) {
+      if (allowBlockCollections &&
+          (readBlockSequence(state, blockIndent) ||
+           readBlockMapping(state, blockIndent, flowIndent)) ||
+          readFlowCollection(state, flowIndent)) {
+        hasContent = true;
+      } else {
+        if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||
+            readSingleQuotedScalar(state, flowIndent) ||
+            readDoubleQuotedScalar(state, flowIndent)) {
+          hasContent = true;
+
+        } else if (readAlias(state)) {
+          hasContent = true;
+
+          if (state.tag !== null || state.anchor !== null) {
+            throwError(state, 'alias node should not have any properties');
+          }
+
+        } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
+          hasContent = true;
+
+          if (state.tag === null) {
+            state.tag = '?';
+          }
+        }
+
+        if (state.anchor !== null) {
+          state.anchorMap[state.anchor] = state.result;
+        }
+      }
+    } else if (indentStatus === 0) {
+      // Special case: block sequences are allowed to have same indentation level as the parent.
+      // http://www.yaml.org/spec/1.2/spec.html#id2799784
+      hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
+    }
+  }
+
+  if (state.tag === null) {
+    if (state.anchor !== null) {
+      state.anchorMap[state.anchor] = state.result;
+    }
+
+  } else if (state.tag === '?') {
+    // Implicit resolving is not allowed for non-scalar types, and '?'
+    // non-specific tag is only automatically assigned to plain scalars.
+    //
+    // We only need to check kind conformity in case user explicitly assigns '?'
+    // tag, for example like this: "!<?> [0]"
+    //
+    if (state.result !== null && state.kind !== 'scalar') {
+      throwError(state, 'unacceptable node kind for !<?> tag; it should be "scalar", not "' + state.kind + '"');
+    }
+
+    for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {
+      type = state.implicitTypes[typeIndex];
+
+      if (type.resolve(state.result)) { // `state.result` updated in resolver if matched
+        state.result = type.construct(state.result);
+        state.tag = type.tag;
+        if (state.anchor !== null) {
+          state.anchorMap[state.anchor] = state.result;
+        }
+        break;
+      }
+    }
+  } else if (state.tag !== '!') {
+    if (_hasOwnProperty$1.call(state.typeMap[state.kind || 'fallback'], state.tag)) {
+      type = state.typeMap[state.kind || 'fallback'][state.tag];
+    } else {
+      // looking for multi type
+      type = null;
+      typeList = state.typeMap.multi[state.kind || 'fallback'];
+
+      for (typeIndex = 0, typeQuantity = typeList.length; typeIndex < typeQuantity; typeIndex += 1) {
+        if (state.tag.slice(0, typeList[typeIndex].tag.length) === typeList[typeIndex].tag) {
+          type = typeList[typeIndex];
+          break;
+        }
+      }
+    }
+
+    if (!type) {
+      throwError(state, 'unknown tag !<' + state.tag + '>');
+    }
+
+    if (state.result !== null && type.kind !== state.kind) {
+      throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be "' + type.kind + '", not "' + state.kind + '"');
+    }
+
+    if (!type.resolve(state.result, state.tag)) { // `state.result` updated in resolver if matched
+      throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
+    } else {
+      state.result = type.construct(state.result, state.tag);
+      if (state.anchor !== null) {
+        state.anchorMap[state.anchor] = state.result;
+      }
+    }
+  }
+
+  if (state.listener !== null) {
+    state.listener('close', state);
+  }
+  return state.tag !== null ||  state.anchor !== null || hasContent;
+}
+
+function readDocument(state) {
+  var documentStart = state.position,
+      _position,
+      directiveName,
+      directiveArgs,
+      hasDirectives = false,
+      ch;
+
+  state.version = null;
+  state.checkLineBreaks = state.legacy;
+  state.tagMap = Object.create(null);
+  state.anchorMap = Object.create(null);
+
+  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
+    skipSeparationSpace(state, true, -1);
+
+    ch = state.input.charCodeAt(state.position);
+
+    if (state.lineIndent > 0 || ch !== 0x25/* % */) {
+      break;
+    }
+
+    hasDirectives = true;
+    ch = state.input.charCodeAt(++state.position);
+    _position = state.position;
+
+    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+      ch = state.input.charCodeAt(++state.position);
+    }
+
+    directiveName = state.input.slice(_position, state.position);
+    directiveArgs = [];
+
+    if (directiveName.length < 1) {
+      throwError(state, 'directive name must not be less than one character in length');
+    }
+
+    while (ch !== 0) {
+      while (is_WHITE_SPACE(ch)) {
+        ch = state.input.charCodeAt(++state.position);
+      }
+
+      if (ch === 0x23/* # */) {
+        do { ch = state.input.charCodeAt(++state.position); }
+        while (ch !== 0 && !is_EOL(ch));
+        break;
+      }
+
+      if (is_EOL(ch)) break;
+
+      _position = state.position;
+
+      while (ch !== 0 && !is_WS_OR_EOL(ch)) {
+        ch = state.input.charCodeAt(++state.position);
+      }
+
+      directiveArgs.push(state.input.slice(_position, state.position));
+    }
+
+    if (ch !== 0) readLineBreak(state);
+
+    if (_hasOwnProperty$1.call(directiveHandlers, directiveName)) {
+      directiveHandlers[directiveName](state, directiveName, directiveArgs);
+    } else {
+      throwWarning(state, 'unknown document directive "' + directiveName + '"');
+    }
+  }
+
+  skipSeparationSpace(state, true, -1);
+
+  if (state.lineIndent === 0 &&
+      state.input.charCodeAt(state.position)     === 0x2D/* - */ &&
+      state.input.charCodeAt(state.position + 1) === 0x2D/* - */ &&
+      state.input.charCodeAt(state.position + 2) === 0x2D/* - */) {
+    state.position += 3;
+    skipSeparationSpace(state, true, -1);
+
+  } else if (hasDirectives) {
+    throwError(state, 'directives end mark is expected');
+  }
+
+  composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
+  skipSeparationSpace(state, true, -1);
+
+  if (state.checkLineBreaks &&
+      PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
+    throwWarning(state, 'non-ASCII line breaks are interpreted as content');
+  }
+
+  state.documents.push(state.result);
+
+  if (state.position === state.lineStart && testDocumentSeparator(state)) {
+
+    if (state.input.charCodeAt(state.position) === 0x2E/* . */) {
+      state.position += 3;
+      skipSeparationSpace(state, true, -1);
+    }
+    return;
+  }
+
+  if (state.position < (state.length - 1)) {
+    throwError(state, 'end of the stream or a document separator is expected');
+  } else {
+    return;
+  }
+}
+
+
+function loadDocuments(input, options) {
+  input = String(input);
+  options = options || {};
+
+  if (input.length !== 0) {
+
+    // Add tailing `\n` if not exists
+    if (input.charCodeAt(input.length - 1) !== 0x0A/* LF */ &&
+        input.charCodeAt(input.length - 1) !== 0x0D/* CR */) {
+      input += '\n';
+    }
+
+    // Strip BOM
+    if (input.charCodeAt(0) === 0xFEFF) {
+      input = input.slice(1);
+    }
+  }
+
+  var state = new State$1(input, options);
+
+  var nullpos = input.indexOf('\0');
+
+  if (nullpos !== -1) {
+    state.position = nullpos;
+    throwError(state, 'null byte is not allowed in input');
+  }
+
+  // Use 0 as string terminator. That significantly simplifies bounds check.
+  state.input += '\0';
+
+  while (state.input.charCodeAt(state.position) === 0x20/* Space */) {
+    state.lineIndent += 1;
+    state.position += 1;
+  }
+
+  while (state.position < (state.length - 1)) {
+    readDocument(state);
+  }
+
+  return state.documents;
+}
+
+
+function loadAll$1(input, iterator, options) {
+  if (iterator !== null && typeof iterator === 'object' && typeof options === 'undefined') {
+    options = iterator;
+    iterator = null;
+  }
+
+  var documents = loadDocuments(input, options);
+
+  if (typeof iterator !== 'function') {
+    return documents;
+  }
+
+  for (var index = 0, length = documents.length; index < length; index += 1) {
+    iterator(documents[index]);
+  }
+}
+
+
+function load$1(input, options) {
+  var documents = loadDocuments(input, options);
+
+  if (documents.length === 0) {
+    /*eslint-disable no-undefined*/
+    return undefined;
+  } else if (documents.length === 1) {
+    return documents[0];
+  }
+  throw new exception('expected a single document in the stream, but found more');
+}
+
+
+var loadAll_1 = loadAll$1;
+var load_1    = load$1;
+
+var loader = {
+	loadAll: loadAll_1,
+	load: load_1
+};
+
+/*eslint-disable no-use-before-define*/
+
+
+
+
+
+var _toString       = Object.prototype.toString;
+var _hasOwnProperty = Object.prototype.hasOwnProperty;
+
+var CHAR_BOM                  = 0xFEFF;
+var CHAR_TAB                  = 0x09; /* Tab */
+var CHAR_LINE_FEED            = 0x0A; /* LF */
+var CHAR_CARRIAGE_RETURN      = 0x0D; /* CR */
+var CHAR_SPACE                = 0x20; /* Space */
+var CHAR_EXCLAMATION          = 0x21; /* ! */
+var CHAR_DOUBLE_QUOTE         = 0x22; /* " */
+var CHAR_SHARP                = 0x23; /* # */
+var CHAR_PERCENT              = 0x25; /* % */
+var CHAR_AMPERSAND            = 0x26; /* & */
+var CHAR_SINGLE_QUOTE         = 0x27; /* ' */
+var CHAR_ASTERISK             = 0x2A; /* * */
+var CHAR_COMMA                = 0x2C; /* , */
+var CHAR_MINUS                = 0x2D; /* - */
+var CHAR_COLON                = 0x3A; /* : */
+var CHAR_EQUALS               = 0x3D; /* = */
+var CHAR_GREATER_THAN         = 0x3E; /* > */
+var CHAR_QUESTION             = 0x3F; /* ? */
+var CHAR_COMMERCIAL_AT        = 0x40; /* @ */
+var CHAR_LEFT_SQUARE_BRACKET  = 0x5B; /* [ */
+var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
+var CHAR_GRAVE_ACCENT         = 0x60; /* ` */
+var CHAR_LEFT_CURLY_BRACKET   = 0x7B; /* { */
+var CHAR_VERTICAL_LINE        = 0x7C; /* | */
+var CHAR_RIGHT_CURLY_BRACKET  = 0x7D; /* } */
+
+var ESCAPE_SEQUENCES = {};
+
+ESCAPE_SEQUENCES[0x00]   = '\\0';
+ESCAPE_SEQUENCES[0x07]   = '\\a';
+ESCAPE_SEQUENCES[0x08]   = '\\b';
+ESCAPE_SEQUENCES[0x09]   = '\\t';
+ESCAPE_SEQUENCES[0x0A]   = '\\n';
+ESCAPE_SEQUENCES[0x0B]   = '\\v';
+ESCAPE_SEQUENCES[0x0C]   = '\\f';
+ESCAPE_SEQUENCES[0x0D]   = '\\r';
+ESCAPE_SEQUENCES[0x1B]   = '\\e';
+ESCAPE_SEQUENCES[0x22]   = '\\"';
+ESCAPE_SEQUENCES[0x5C]   = '\\\\';
+ESCAPE_SEQUENCES[0x85]   = '\\N';
+ESCAPE_SEQUENCES[0xA0]   = '\\_';
+ESCAPE_SEQUENCES[0x2028] = '\\L';
+ESCAPE_SEQUENCES[0x2029] = '\\P';
+
+var DEPRECATED_BOOLEANS_SYNTAX = [
+  'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
+  'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'
+];
+
+var DEPRECATED_BASE60_SYNTAX = /^[-+]?[0-9_]+(?::[0-9_]+)+(?:\.[0-9_]*)?$/;
+
+function compileStyleMap(schema, map) {
+  var result, keys, index, length, tag, style, type;
+
+  if (map === null) return {};
+
+  result = {};
+  keys = Object.keys(map);
+
+  for (index = 0, length = keys.length; index < length; index += 1) {
+    tag = keys[index];
+    style = String(map[tag]);
+
+    if (tag.slice(0, 2) === '!!') {
+      tag = 'tag:yaml.org,2002:' + tag.slice(2);
+    }
+    type = schema.compiledTypeMap['fallback'][tag];
+
+    if (type && _hasOwnProperty.call(type.styleAliases, style)) {
+      style = type.styleAliases[style];
+    }
+
+    result[tag] = style;
+  }
+
+  return result;
+}
+
+function encodeHex(character) {
+  var string, handle, length;
+
+  string = character.toString(16).toUpperCase();
+
+  if (character <= 0xFF) {
+    handle = 'x';
+    length = 2;
+  } else if (character <= 0xFFFF) {
+    handle = 'u';
+    length = 4;
+  } else if (character <= 0xFFFFFFFF) {
+    handle = 'U';
+    length = 8;
+  } else {
+    throw new exception('code point within a string may not be greater than 0xFFFFFFFF');
+  }
+
+  return '\\' + handle + common.repeat('0', length - string.length) + string;
+}
+
+
+var QUOTING_TYPE_SINGLE = 1,
+    QUOTING_TYPE_DOUBLE = 2;
+
+function State(options) {
+  this.schema        = options['schema'] || _default;
+  this.indent        = Math.max(1, (options['indent'] || 2));
+  this.noArrayIndent = options['noArrayIndent'] || false;
+  this.skipInvalid   = options['skipInvalid'] || false;
+  this.flowLevel     = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);
+  this.styleMap      = compileStyleMap(this.schema, options['styles'] || null);
+  this.sortKeys      = options['sortKeys'] || false;
+  this.lineWidth     = options['lineWidth'] || 80;
+  this.noRefs        = options['noRefs'] || false;
+  this.noCompatMode  = options['noCompatMode'] || false;
+  this.condenseFlow  = options['condenseFlow'] || false;
+  this.quotingType   = options['quotingType'] === '"' ? QUOTING_TYPE_DOUBLE : QUOTING_TYPE_SINGLE;
+  this.forceQuotes   = options['forceQuotes'] || false;
+  this.replacer      = typeof options['replacer'] === 'function' ? options['replacer'] : null;
+
+  this.implicitTypes = this.schema.compiledImplicit;
+  this.explicitTypes = this.schema.compiledExplicit;
+
+  this.tag = null;
+  this.result = '';
+
+  this.duplicates = [];
+  this.usedDuplicates = null;
+}
+
+// Indents every line in a string. Empty lines (\n only) are not indented.
+function indentString(string, spaces) {
+  var ind = common.repeat(' ', spaces),
+      position = 0,
+      next = -1,
+      result = '',
+      line,
+      length = string.length;
+
+  while (position < length) {
+    next = string.indexOf('\n', position);
+    if (next === -1) {
+      line = string.slice(position);
+      position = length;
+    } else {
+      line = string.slice(position, next + 1);
+      position = next + 1;
+    }
+
+    if (line.length && line !== '\n') result += ind;
+
+    result += line;
+  }
+
+  return result;
+}
+
+function generateNextLine(state, level) {
+  return '\n' + common.repeat(' ', state.indent * level);
+}
+
+function testImplicitResolving(state, str) {
+  var index, length, type;
+
+  for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
+    type = state.implicitTypes[index];
+
+    if (type.resolve(str)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// [33] s-white ::= s-space | s-tab
+function isWhitespace(c) {
+  return c === CHAR_SPACE || c === CHAR_TAB;
+}
+
+// Returns true if the character can be printed without escaping.
+// From YAML 1.2: "any allowed characters known to be non-printable
+// should also be escaped. [However,] This isn’t mandatory"
+// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
+function isPrintable(c) {
+  return  (0x00020 <= c && c <= 0x00007E)
+      || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
+      || ((0x0E000 <= c && c <= 0x00FFFD) && c !== CHAR_BOM)
+      ||  (0x10000 <= c && c <= 0x10FFFF);
+}
+
+// [34] ns-char ::= nb-char - s-white
+// [27] nb-char ::= c-printable - b-char - c-byte-order-mark
+// [26] b-char  ::= b-line-feed | b-carriage-return
+// Including s-white (for some reason, examples doesn't match specs in this aspect)
+// ns-char ::= c-printable - b-line-feed - b-carriage-return - c-byte-order-mark
+function isNsCharOrWhitespace(c) {
+  return isPrintable(c)
+    && c !== CHAR_BOM
+    // - b-char
+    && c !== CHAR_CARRIAGE_RETURN
+    && c !== CHAR_LINE_FEED;
+}
+
+// [127]  ns-plain-safe(c) ::= c = flow-out  ⇒ ns-plain-safe-out
+//                             c = flow-in   ⇒ ns-plain-safe-in
+//                             c = block-key ⇒ ns-plain-safe-out
+//                             c = flow-key  ⇒ ns-plain-safe-in
+// [128] ns-plain-safe-out ::= ns-char
+// [129]  ns-plain-safe-in ::= ns-char - c-flow-indicator
+// [130]  ns-plain-char(c) ::=  ( ns-plain-safe(c) - “:” - “#” )
+//                            | ( /* An ns-char preceding */ “#” )
+//                            | ( “:” /* Followed by an ns-plain-safe(c) */ )
+function isPlainSafe(c, prev, inblock) {
+  var cIsNsCharOrWhitespace = isNsCharOrWhitespace(c);
+  var cIsNsChar = cIsNsCharOrWhitespace && !isWhitespace(c);
+  return (
+    // ns-plain-safe
+    inblock ? // c = flow-in
+      cIsNsCharOrWhitespace
+      : cIsNsCharOrWhitespace
+        // - c-flow-indicator
+        && c !== CHAR_COMMA
+        && c !== CHAR_LEFT_SQUARE_BRACKET
+        && c !== CHAR_RIGHT_SQUARE_BRACKET
+        && c !== CHAR_LEFT_CURLY_BRACKET
+        && c !== CHAR_RIGHT_CURLY_BRACKET
+  )
+    // ns-plain-char
+    && c !== CHAR_SHARP // false on '#'
+    && !(prev === CHAR_COLON && !cIsNsChar) // false on ': '
+    || (isNsCharOrWhitespace(prev) && !isWhitespace(prev) && c === CHAR_SHARP) // change to true on '[^ ]#'
+    || (prev === CHAR_COLON && cIsNsChar); // change to true on ':[^ ]'
+}
+
+// Simplified test for values allowed as the first character in plain style.
+function isPlainSafeFirst(c) {
+  // Uses a subset of ns-char - c-indicator
+  // where ns-char = nb-char - s-white.
+  // No support of ( ( “?” | “:” | “-” ) /* Followed by an ns-plain-safe(c)) */ ) part
+  return isPrintable(c) && c !== CHAR_BOM
+    && !isWhitespace(c) // - s-white
+    // - (c-indicator ::=
+    // “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
+    && c !== CHAR_MINUS
+    && c !== CHAR_QUESTION
+    && c !== CHAR_COLON
+    && c !== CHAR_COMMA
+    && c !== CHAR_LEFT_SQUARE_BRACKET
+    && c !== CHAR_RIGHT_SQUARE_BRACKET
+    && c !== CHAR_LEFT_CURLY_BRACKET
+    && c !== CHAR_RIGHT_CURLY_BRACKET
+    // | “#” | “&” | “*” | “!” | “|” | “=” | “>” | “'” | “"”
+    && c !== CHAR_SHARP
+    && c !== CHAR_AMPERSAND
+    && c !== CHAR_ASTERISK
+    && c !== CHAR_EXCLAMATION
+    && c !== CHAR_VERTICAL_LINE
+    && c !== CHAR_EQUALS
+    && c !== CHAR_GREATER_THAN
+    && c !== CHAR_SINGLE_QUOTE
+    && c !== CHAR_DOUBLE_QUOTE
+    // | “%” | “@” | “`”)
+    && c !== CHAR_PERCENT
+    && c !== CHAR_COMMERCIAL_AT
+    && c !== CHAR_GRAVE_ACCENT;
+}
+
+// Simplified test for values allowed as the last character in plain style.
+function isPlainSafeLast(c) {
+  // just not whitespace or colon, it will be checked to be plain character later
+  return !isWhitespace(c) && c !== CHAR_COLON;
+}
+
+// Same as 'string'.codePointAt(pos), but works in older browsers.
+function codePointAt(string, pos) {
+  var first = string.charCodeAt(pos), second;
+  if (first >= 0xD800 && first <= 0xDBFF && pos + 1 < string.length) {
+    second = string.charCodeAt(pos + 1);
+    if (second >= 0xDC00 && second <= 0xDFFF) {
+      // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+      return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
+    }
+  }
+  return first;
+}
+
+// Determines whether block indentation indicator is required.
+function needIndentIndicator(string) {
+  var leadingSpaceRe = /^\n* /;
+  return leadingSpaceRe.test(string);
+}
+
+var STYLE_PLAIN   = 1,
+    STYLE_SINGLE  = 2,
+    STYLE_LITERAL = 3,
+    STYLE_FOLDED  = 4,
+    STYLE_DOUBLE  = 5;
+
+// Determines which scalar styles are possible and returns the preferred style.
+// lineWidth = -1 => no limit.
+// Pre-conditions: str.length > 0.
+// Post-conditions:
+//    STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
+//    STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
+//    STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
+function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth,
+  testAmbiguousType, quotingType, forceQuotes, inblock) {
+
+  var i;
+  var char = 0;
+  var prevChar = null;
+  var hasLineBreak = false;
+  var hasFoldableLine = false; // only checked if shouldTrackWidth
+  var shouldTrackWidth = lineWidth !== -1;
+  var previousLineBreak = -1; // count the first line correctly
+  var plain = isPlainSafeFirst(codePointAt(string, 0))
+          && isPlainSafeLast(codePointAt(string, string.length - 1));
+
+  if (singleLineOnly || forceQuotes) {
+    // Case: no block styles.
+    // Check for disallowed characters to rule out plain and single.
+    for (i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {
+      char = codePointAt(string, i);
+      if (!isPrintable(char)) {
+        return STYLE_DOUBLE;
+      }
+      plain = plain && isPlainSafe(char, prevChar, inblock);
+      prevChar = char;
+    }
+  } else {
+    // Case: block styles permitted.
+    for (i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {
+      char = codePointAt(string, i);
+      if (char === CHAR_LINE_FEED) {
+        hasLineBreak = true;
+        // Check if any line can be folded.
+        if (shouldTrackWidth) {
+          hasFoldableLine = hasFoldableLine ||
+            // Foldable line = too long, and not more-indented.
+            (i - previousLineBreak - 1 > lineWidth &&
+             string[previousLineBreak + 1] !== ' ');
+          previousLineBreak = i;
+        }
+      } else if (!isPrintable(char)) {
+        return STYLE_DOUBLE;
+      }
+      plain = plain && isPlainSafe(char, prevChar, inblock);
+      prevChar = char;
+    }
+    // in case the end is missing a \n
+    hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&
+      (i - previousLineBreak - 1 > lineWidth &&
+       string[previousLineBreak + 1] !== ' '));
+  }
+  // Although every style can represent \n without escaping, prefer block styles
+  // for multiline, since they're more readable and they don't add empty lines.
+  // Also prefer folding a super-long line.
+  if (!hasLineBreak && !hasFoldableLine) {
+    // Strings interpretable as another type have to be quoted;
+    // e.g. the string 'true' vs. the boolean true.
+    if (plain && !forceQuotes && !testAmbiguousType(string)) {
+      return STYLE_PLAIN;
+    }
+    return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;
+  }
+  // Edge case: block indentation indicator can only have one digit.
+  if (indentPerLevel > 9 && needIndentIndicator(string)) {
+    return STYLE_DOUBLE;
+  }
+  // At this point we know block styles are valid.
+  // Prefer literal style unless we want to fold.
+  if (!forceQuotes) {
+    return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
+  }
+  return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;
+}
+
+// Note: line breaking/folding is implemented for only the folded style.
+// NB. We drop the last trailing newline (if any) of a returned block scalar
+//  since the dumper adds its own newline. This always works:
+//    • No ending newline => unaffected; already using strip "-" chomping.
+//    • Ending newline    => removed then restored.
+//  Importantly, this keeps the "+" chomp indicator from gaining an extra line.
+function writeScalar(state, string, level, iskey, inblock) {
+  state.dump = (function () {
+    if (string.length === 0) {
+      return state.quotingType === QUOTING_TYPE_DOUBLE ? '""' : "''";
+    }
+    if (!state.noCompatMode) {
+      if (DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1 || DEPRECATED_BASE60_SYNTAX.test(string)) {
+        return state.quotingType === QUOTING_TYPE_DOUBLE ? ('"' + string + '"') : ("'" + string + "'");
+      }
+    }
+
+    var indent = state.indent * Math.max(1, level); // no 0-indent scalars
+    // As indentation gets deeper, let the width decrease monotonically
+    // to the lower bound min(state.lineWidth, 40).
+    // Note that this implies
+    //  state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
+    //  state.lineWidth > 40 + state.indent: width decreases until the lower bound.
+    // This behaves better than a constant minimum width which disallows narrower options,
+    // or an indent threshold which causes the width to suddenly increase.
+    var lineWidth = state.lineWidth === -1
+      ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
+
+    // Without knowing if keys are implicit/explicit, assume implicit for safety.
+    var singleLineOnly = iskey
+      // No block styles in flow mode.
+      || (state.flowLevel > -1 && level >= state.flowLevel);
+    function testAmbiguity(string) {
+      return testImplicitResolving(state, string);
+    }
+
+    switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth,
+      testAmbiguity, state.quotingType, state.forceQuotes && !iskey, inblock)) {
+
+      case STYLE_PLAIN:
+        return string;
+      case STYLE_SINGLE:
+        return "'" + string.replace(/'/g, "''") + "'";
+      case STYLE_LITERAL:
+        return '|' + blockHeader(string, state.indent)
+          + dropEndingNewline(indentString(string, indent));
+      case STYLE_FOLDED:
+        return '>' + blockHeader(string, state.indent)
+          + dropEndingNewline(indentString(foldString(string, lineWidth), indent));
+      case STYLE_DOUBLE:
+        return '"' + escapeString(string) + '"';
+      default:
+        throw new exception('impossible error: invalid scalar style');
+    }
+  }());
+}
+
+// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
+function blockHeader(string, indentPerLevel) {
+  var indentIndicator = needIndentIndicator(string) ? String(indentPerLevel) : '';
+
+  // note the special case: the string '\n' counts as a "trailing" empty line.
+  var clip =          string[string.length - 1] === '\n';
+  var keep = clip && (string[string.length - 2] === '\n' || string === '\n');
+  var chomp = keep ? '+' : (clip ? '' : '-');
+
+  return indentIndicator + chomp + '\n';
+}
+
+// (See the note for writeScalar.)
+function dropEndingNewline(string) {
+  return string[string.length - 1] === '\n' ? string.slice(0, -1) : string;
+}
+
+// Note: a long line without a suitable break point will exceed the width limit.
+// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
+function foldString(string, width) {
+  // In folded style, $k$ consecutive newlines output as $k+1$ newlines—
+  // unless they're before or after a more-indented line, or at the very
+  // beginning or end, in which case $k$ maps to $k$.
+  // Therefore, parse each chunk as newline(s) followed by a content line.
+  var lineRe = /(\n+)([^\n]*)/g;
+
+  // first line (possibly an empty line)
+  var result = (function () {
+    var nextLF = string.indexOf('\n');
+    nextLF = nextLF !== -1 ? nextLF : string.length;
+    lineRe.lastIndex = nextLF;
+    return foldLine(string.slice(0, nextLF), width);
+  }());
+  // If we haven't reached the first content line yet, don't add an extra \n.
+  var prevMoreIndented = string[0] === '\n' || string[0] === ' ';
+  var moreIndented;
+
+  // rest of the lines
+  var match;
+  while ((match = lineRe.exec(string))) {
+    var prefix = match[1], line = match[2];
+    moreIndented = (line[0] === ' ');
+    result += prefix
+      + (!prevMoreIndented && !moreIndented && line !== ''
+        ? '\n' : '')
+      + foldLine(line, width);
+    prevMoreIndented = moreIndented;
+  }
+
+  return result;
+}
+
+// Greedy line breaking.
+// Picks the longest line under the limit each time,
+// otherwise settles for the shortest line over the limit.
+// NB. More-indented lines *cannot* be folded, as that would add an extra \n.
+function foldLine(line, width) {
+  if (line === '' || line[0] === ' ') return line;
+
+  // Since a more-indented line adds a \n, breaks can't be followed by a space.
+  var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
+  var match;
+  // start is an inclusive index. end, curr, and next are exclusive.
+  var start = 0, end, curr = 0, next = 0;
+  var result = '';
+
+  // Invariants: 0 <= start <= length-1.
+  //   0 <= curr <= next <= max(0, length-2). curr - start <= width.
+  // Inside the loop:
+  //   A match implies length >= 2, so curr and next are <= length-2.
+  while ((match = breakRe.exec(line))) {
+    next = match.index;
+    // maintain invariant: curr - start <= width
+    if (next - start > width) {
+      end = (curr > start) ? curr : next; // derive end <= length-2
+      result += '\n' + line.slice(start, end);
+      // skip the space that was output as \n
+      start = end + 1;                    // derive start <= length-1
+    }
+    curr = next;
+  }
+
+  // By the invariants, start <= length-1, so there is something left over.
+  // It is either the whole string or a part starting from non-whitespace.
+  result += '\n';
+  // Insert a break if the remainder is too long and there is a break available.
+  if (line.length - start > width && curr > start) {
+    result += line.slice(start, curr) + '\n' + line.slice(curr + 1);
+  } else {
+    result += line.slice(start);
+  }
+
+  return result.slice(1); // drop extra \n joiner
+}
+
+// Escapes a double-quoted string.
+function escapeString(string) {
+  var result = '';
+  var char = 0;
+  var escapeSeq;
+
+  for (var i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {
+    char = codePointAt(string, i);
+    escapeSeq = ESCAPE_SEQUENCES[char];
+
+    if (!escapeSeq && isPrintable(char)) {
+      result += string[i];
+      if (char >= 0x10000) result += string[i + 1];
+    } else {
+      result += escapeSeq || encodeHex(char);
+    }
+  }
+
+  return result;
+}
+
+function writeFlowSequence(state, level, object) {
+  var _result = '',
+      _tag    = state.tag,
+      index,
+      length,
+      value;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    value = object[index];
+
+    if (state.replacer) {
+      value = state.replacer.call(object, String(index), value);
+    }
+
+    // Write only valid elements, put null instead of invalid elements.
+    if (writeNode(state, level, value, false, false) ||
+        (typeof value === 'undefined' &&
+         writeNode(state, level, null, false, false))) {
+
+      if (_result !== '') _result += ',' + (!state.condenseFlow ? ' ' : '');
+      _result += state.dump;
+    }
+  }
+
+  state.tag = _tag;
+  state.dump = '[' + _result + ']';
+}
+
+function writeBlockSequence(state, level, object, compact) {
+  var _result = '',
+      _tag    = state.tag,
+      index,
+      length,
+      value;
+
+  for (index = 0, length = object.length; index < length; index += 1) {
+    value = object[index];
+
+    if (state.replacer) {
+      value = state.replacer.call(object, String(index), value);
+    }
+
+    // Write only valid elements, put null instead of invalid elements.
+    if (writeNode(state, level + 1, value, true, true, false, true) ||
+        (typeof value === 'undefined' &&
+         writeNode(state, level + 1, null, true, true, false, true))) {
+
+      if (!compact || _result !== '') {
+        _result += generateNextLine(state, level);
+      }
+
+      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+        _result += '-';
+      } else {
+        _result += '- ';
+      }
+
+      _result += state.dump;
+    }
+  }
+
+  state.tag = _tag;
+  state.dump = _result || '[]'; // Empty sequence if no valid values.
+}
+
+function writeFlowMapping(state, level, object) {
+  var _result       = '',
+      _tag          = state.tag,
+      objectKeyList = Object.keys(object),
+      index,
+      length,
+      objectKey,
+      objectValue,
+      pairBuffer;
+
+  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+
+    pairBuffer = '';
+    if (_result !== '') pairBuffer += ', ';
+
+    if (state.condenseFlow) pairBuffer += '"';
+
+    objectKey = objectKeyList[index];
+    objectValue = object[objectKey];
+
+    if (state.replacer) {
+      objectValue = state.replacer.call(object, objectKey, objectValue);
+    }
+
+    if (!writeNode(state, level, objectKey, false, false)) {
+      continue; // Skip this pair because of invalid key;
+    }
+
+    if (state.dump.length > 1024) pairBuffer += '? ';
+
+    pairBuffer += state.dump + (state.condenseFlow ? '"' : '') + ':' + (state.condenseFlow ? '' : ' ');
+
+    if (!writeNode(state, level, objectValue, false, false)) {
+      continue; // Skip this pair because of invalid value.
+    }
+
+    pairBuffer += state.dump;
+
+    // Both key and value are valid.
+    _result += pairBuffer;
+  }
+
+  state.tag = _tag;
+  state.dump = '{' + _result + '}';
+}
+
+function writeBlockMapping(state, level, object, compact) {
+  var _result       = '',
+      _tag          = state.tag,
+      objectKeyList = Object.keys(object),
+      index,
+      length,
+      objectKey,
+      objectValue,
+      explicitPair,
+      pairBuffer;
+
+  // Allow sorting keys so that the output file is deterministic
+  if (state.sortKeys === true) {
+    // Default sorting
+    objectKeyList.sort();
+  } else if (typeof state.sortKeys === 'function') {
+    // Custom sort function
+    objectKeyList.sort(state.sortKeys);
+  } else if (state.sortKeys) {
+    // Something is wrong
+    throw new exception('sortKeys must be a boolean or a function');
+  }
+
+  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+    pairBuffer = '';
+
+    if (!compact || _result !== '') {
+      pairBuffer += generateNextLine(state, level);
+    }
+
+    objectKey = objectKeyList[index];
+    objectValue = object[objectKey];
+
+    if (state.replacer) {
+      objectValue = state.replacer.call(object, objectKey, objectValue);
+    }
+
+    if (!writeNode(state, level + 1, objectKey, true, true, true)) {
+      continue; // Skip this pair because of invalid key.
+    }
+
+    explicitPair = (state.tag !== null && state.tag !== '?') ||
+                   (state.dump && state.dump.length > 1024);
+
+    if (explicitPair) {
+      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+        pairBuffer += '?';
+      } else {
+        pairBuffer += '? ';
+      }
+    }
+
+    pairBuffer += state.dump;
+
+    if (explicitPair) {
+      pairBuffer += generateNextLine(state, level);
+    }
+
+    if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
+      continue; // Skip this pair because of invalid value.
+    }
+
+    if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
+      pairBuffer += ':';
+    } else {
+      pairBuffer += ': ';
+    }
+
+    pairBuffer += state.dump;
+
+    // Both key and value are valid.
+    _result += pairBuffer;
+  }
+
+  state.tag = _tag;
+  state.dump = _result || '{}'; // Empty mapping if no valid pairs.
+}
+
+function detectType(state, object, explicit) {
+  var _result, typeList, index, length, type, style;
+
+  typeList = explicit ? state.explicitTypes : state.implicitTypes;
+
+  for (index = 0, length = typeList.length; index < length; index += 1) {
+    type = typeList[index];
+
+    if ((type.instanceOf  || type.predicate) &&
+        (!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&
+        (!type.predicate  || type.predicate(object))) {
+
+      if (explicit) {
+        if (type.multi && type.representName) {
+          state.tag = type.representName(object);
+        } else {
+          state.tag = type.tag;
+        }
+      } else {
+        state.tag = '?';
+      }
+
+      if (type.represent) {
+        style = state.styleMap[type.tag] || type.defaultStyle;
+
+        if (_toString.call(type.represent) === '[object Function]') {
+          _result = type.represent(object, style);
+        } else if (_hasOwnProperty.call(type.represent, style)) {
+          _result = type.represent[style](object, style);
+        } else {
+          throw new exception('!<' + type.tag + '> tag resolver accepts not "' + style + '" style');
+        }
+
+        state.dump = _result;
+      }
+
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// Serializes `object` and writes it to global `result`.
+// Returns true on success, or false on invalid object.
+//
+function writeNode(state, level, object, block, compact, iskey, isblockseq) {
+  state.tag = null;
+  state.dump = object;
+
+  if (!detectType(state, object, false)) {
+    detectType(state, object, true);
+  }
+
+  var type = _toString.call(state.dump);
+  var inblock = block;
+  var tagStr;
+
+  if (block) {
+    block = (state.flowLevel < 0 || state.flowLevel > level);
+  }
+
+  var objectOrArray = type === '[object Object]' || type === '[object Array]',
+      duplicateIndex,
+      duplicate;
+
+  if (objectOrArray) {
+    duplicateIndex = state.duplicates.indexOf(object);
+    duplicate = duplicateIndex !== -1;
+  }
+
+  if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {
+    compact = false;
+  }
+
+  if (duplicate && state.usedDuplicates[duplicateIndex]) {
+    state.dump = '*ref_' + duplicateIndex;
+  } else {
+    if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
+      state.usedDuplicates[duplicateIndex] = true;
+    }
+    if (type === '[object Object]') {
+      if (block && (Object.keys(state.dump).length !== 0)) {
+        writeBlockMapping(state, level, state.dump, compact);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + state.dump;
+        }
+      } else {
+        writeFlowMapping(state, level, state.dump);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
+        }
+      }
+    } else if (type === '[object Array]') {
+      if (block && (state.dump.length !== 0)) {
+        if (state.noArrayIndent && !isblockseq && level > 0) {
+          writeBlockSequence(state, level - 1, state.dump, compact);
+        } else {
+          writeBlockSequence(state, level, state.dump, compact);
+        }
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + state.dump;
+        }
+      } else {
+        writeFlowSequence(state, level, state.dump);
+        if (duplicate) {
+          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
+        }
+      }
+    } else if (type === '[object String]') {
+      if (state.tag !== '?') {
+        writeScalar(state, state.dump, level, iskey, inblock);
+      }
+    } else if (type === '[object Undefined]') {
+      return false;
+    } else {
+      if (state.skipInvalid) return false;
+      throw new exception('unacceptable kind of an object to dump ' + type);
+    }
+
+    if (state.tag !== null && state.tag !== '?') {
+      // Need to encode all characters except those allowed by the spec:
+      //
+      // [35] ns-dec-digit    ::=  [#x30-#x39] /* 0-9 */
+      // [36] ns-hex-digit    ::=  ns-dec-digit
+      //                         | [#x41-#x46] /* A-F */ | [#x61-#x66] /* a-f */
+      // [37] ns-ascii-letter ::=  [#x41-#x5A] /* A-Z */ | [#x61-#x7A] /* a-z */
+      // [38] ns-word-char    ::=  ns-dec-digit | ns-ascii-letter | “-”
+      // [39] ns-uri-char     ::=  “%” ns-hex-digit ns-hex-digit | ns-word-char | “#”
+      //                         | “;” | “/” | “?” | “:” | “@” | “&” | “=” | “+” | “$” | “,”
+      //                         | “_” | “.” | “!” | “~” | “*” | “'” | “(” | “)” | “[” | “]”
+      //
+      // Also need to encode '!' because it has special meaning (end of tag prefix).
+      //
+      tagStr = encodeURI(
+        state.tag[0] === '!' ? state.tag.slice(1) : state.tag
+      ).replace(/!/g, '%21');
+
+      if (state.tag[0] === '!') {
+        tagStr = '!' + tagStr;
+      } else if (tagStr.slice(0, 18) === 'tag:yaml.org,2002:') {
+        tagStr = '!!' + tagStr.slice(18);
+      } else {
+        tagStr = '!<' + tagStr + '>';
+      }
+
+      state.dump = tagStr + ' ' + state.dump;
+    }
+  }
+
+  return true;
+}
+
+function getDuplicateReferences(object, state) {
+  var objects = [],
+      duplicatesIndexes = [],
+      index,
+      length;
+
+  inspectNode(object, objects, duplicatesIndexes);
+
+  for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {
+    state.duplicates.push(objects[duplicatesIndexes[index]]);
+  }
+  state.usedDuplicates = new Array(length);
+}
+
+function inspectNode(object, objects, duplicatesIndexes) {
+  var objectKeyList,
+      index,
+      length;
+
+  if (object !== null && typeof object === 'object') {
+    index = objects.indexOf(object);
+    if (index !== -1) {
+      if (duplicatesIndexes.indexOf(index) === -1) {
+        duplicatesIndexes.push(index);
+      }
+    } else {
+      objects.push(object);
+
+      if (Array.isArray(object)) {
+        for (index = 0, length = object.length; index < length; index += 1) {
+          inspectNode(object[index], objects, duplicatesIndexes);
+        }
+      } else {
+        objectKeyList = Object.keys(object);
+
+        for (index = 0, length = objectKeyList.length; index < length; index += 1) {
+          inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
+        }
+      }
+    }
+  }
+}
+
+function dump$1(input, options) {
+  options = options || {};
+
+  var state = new State(options);
+
+  if (!state.noRefs) getDuplicateReferences(input, state);
+
+  var value = input;
+
+  if (state.replacer) {
+    value = state.replacer.call({ '': value }, '', value);
+  }
+
+  if (writeNode(state, 0, value, true, true)) return state.dump + '\n';
+
+  return '';
+}
+
+var dump_1 = dump$1;
+
+var dumper = {
+	dump: dump_1
+};
+
+function renamed(from, to) {
+  return function () {
+    throw new Error('Function yaml.' + from + ' is removed in js-yaml 4. ' +
+      'Use yaml.' + to + ' instead, which is now safe by default.');
+  };
+}
+
+
+var Type                = type;
+var Schema              = schema;
+var FAILSAFE_SCHEMA     = failsafe;
+var JSON_SCHEMA         = json;
+var CORE_SCHEMA         = core;
+var DEFAULT_SCHEMA      = _default;
+var load                = loader.load;
+var loadAll             = loader.loadAll;
+var dump                = dumper.dump;
+var YAMLException       = exception;
+
+// Re-export all types in case user wants to create custom schema
+var types = {
+  binary:    binary,
+  float:     float,
+  map:       map,
+  null:      _null,
+  pairs:     pairs,
+  set:       set,
+  timestamp: timestamp,
+  bool:      bool,
+  int:       int,
+  merge:     merge,
+  omap:      omap,
+  seq:       seq,
+  str:       str
+};
+
+// Removed functions from JS-YAML 3.0.x
+var safeLoad            = renamed('safeLoad', 'load');
+var safeLoadAll         = renamed('safeLoadAll', 'loadAll');
+var safeDump            = renamed('safeDump', 'dump');
+
+var jsYaml = {
+	Type: Type,
+	Schema: Schema,
+	FAILSAFE_SCHEMA: FAILSAFE_SCHEMA,
+	JSON_SCHEMA: JSON_SCHEMA,
+	CORE_SCHEMA: CORE_SCHEMA,
+	DEFAULT_SCHEMA: DEFAULT_SCHEMA,
+	load: load,
+	loadAll: loadAll,
+	dump: dump,
+	YAMLException: YAMLException,
+	types: types,
+	safeLoad: safeLoad,
+	safeLoadAll: safeLoadAll,
+	safeDump: safeDump
+};
+
+export default jsYaml;
+export { CORE_SCHEMA, DEFAULT_SCHEMA, FAILSAFE_SCHEMA, JSON_SCHEMA, Schema, Type, YAMLException, dump, load, loadAll, safeDump, safeLoad, safeLoadAll, types };