diff --git a/index.js b/index.js
index aaddbf5..47f70b5 100644
--- a/index.js
+++ b/index.js
@@ -60,11 +60,6 @@ import {
   rollbackBatch,
   snapshotProcessedMessageHashes,
 } from "./runtime-state.js";
-import {
-  getRuntimeDebugSnapshot as readRuntimeDebugSnapshot,
-  recordHostCapabilitySnapshot,
-  recordInjectionSnapshot,
-} from "./runtime-debug.js";
 import { DEFAULT_NODE_SCHEMA, validateSchema } from "./schema.js";
 import {
   deleteBackendVectorHashesForRecovery,
@@ -87,6 +82,75 @@ const GRAPH_METADATA_KEY = "st_bme_graph";
 const SERVER_SETTINGS_FILENAME = "st-bme-settings.json";
 const SERVER_SETTINGS_URL = `/user/files/${SERVER_SETTINGS_FILENAME}`;
 
+function cloneRuntimeDebugValue(value, fallback = null) {
+  if (value == null) {
+    return fallback;
+  }
+
+  try {
+    return JSON.parse(JSON.stringify(value));
+  } catch {
+    return fallback ?? value;
+  }
+}
+
+function getRuntimeDebugState() {
+  const stateKey = "__stBmeRuntimeDebugState";
+  if (
+    !globalThis[stateKey] ||
+    typeof globalThis[stateKey] !== "object"
+  ) {
+    globalThis[stateKey] = {
+      hostCapabilities: null,
+      taskPromptBuilds: {},
+      taskLlmRequests: {},
+      injections: {},
+      updatedAt: "",
+    };
+  }
+  return globalThis[stateKey];
+}
+
+function touchRuntimeDebugState() {
+  const state = getRuntimeDebugState();
+  state.updatedAt = new Date().toISOString();
+  return state;
+}
+
+function recordHostCapabilitySnapshot(snapshot = null) {
+  const state = touchRuntimeDebugState();
+  state.hostCapabilities = cloneRuntimeDebugValue(snapshot, null);
+}
+
+function recordInjectionSnapshot(kind, snapshot = {}) {
+  const normalizedKind = String(kind || "").trim() || "default";
+  const state = touchRuntimeDebugState();
+  state.injections[normalizedKind] = {
+    updatedAt: new Date().toISOString(),
+    ...cloneRuntimeDebugValue(snapshot, {}),
+  };
+}
+
+function readRuntimeDebugSnapshot() {
+  const state = getRuntimeDebugState();
+  return cloneRuntimeDebugValue(
+    {
+      hostCapabilities: state.hostCapabilities,
+      taskPromptBuilds: state.taskPromptBuilds,
+      taskLlmRequests: state.taskLlmRequests,
+      injections: state.injections,
+      updatedAt: state.updatedAt,
+    },
+    {
+      hostCapabilities: null,
+      taskPromptBuilds: {},
+      taskLlmRequests: {},
+      injections: {},
+      updatedAt: "",
+    },
+  );
+}
+
 // ==================== 默认设置 ====================
 
 const defaultSettings = {
diff --git a/llm.js b/llm.js
index f584729..3d7d780 100644
--- a/llm.js
+++ b/llm.js
@@ -5,7 +5,6 @@ import { getRequestHeaders } from "../../../../script.js";
 import { extension_settings } from "../../../extensions.js";
 import { chat_completion_sources, sendOpenAIRequest } from "../../../openai.js";
 import { resolveTaskGenerationOptions } from "./generation-options.js";
-import { recordTaskLlmRequest } from "./runtime-debug.js";
 
 const MODULE_NAME = "st_bme";
 const LLM_REQUEST_TIMEOUT_MS = 300000;
@@ -13,6 +12,45 @@ const DEFAULT_TEXT_COMPLETION_TOKENS = 64000;
 const DEFAULT_JSON_COMPLETION_TOKENS = 64000;
 const RETRY_JSON_COMPLETION_TOKENS = 3200;
 
+function cloneRuntimeDebugValue(value, fallback = null) {
+  if (value == null) {
+    return fallback;
+  }
+
+  try {
+    return JSON.parse(JSON.stringify(value));
+  } catch {
+    return fallback ?? value;
+  }
+}
+
+function getRuntimeDebugState() {
+  const stateKey = "__stBmeRuntimeDebugState";
+  if (
+    !globalThis[stateKey] ||
+    typeof globalThis[stateKey] !== "object"
+  ) {
+    globalThis[stateKey] = {
+      hostCapabilities: null,
+      taskPromptBuilds: {},
+      taskLlmRequests: {},
+      injections: {},
+      updatedAt: "",
+    };
+  }
+  return globalThis[stateKey];
+}
+
+function recordTaskLlmRequest(taskType, snapshot = {}) {
+  const normalizedTaskType = String(taskType || "").trim() || "unknown";
+  const state = getRuntimeDebugState();
+  state.taskLlmRequests[normalizedTaskType] = {
+    updatedAt: new Date().toISOString(),
+    ...cloneRuntimeDebugValue(snapshot, {}),
+  };
+  state.updatedAt = new Date().toISOString();
+}
+
 function getLlmTestOverride(name) {
   const override = globalThis.__stBmeTestOverrides?.llm?.[name];
   return typeof override === "function" ? override : null;
diff --git a/panel.js b/panel.js
index f465b2b..271d287 100644
--- a/panel.js
+++ b/panel.js
@@ -25,13 +25,27 @@ import {
   getVectorIndexStats,
 } from "./vector-index.js";
 
-// 从 DEFAULT_TASK_BLOCKS 派生的合并文本（用于旧版兼容回退）
-const DEFAULT_PROMPTS = Object.fromEntries(
-  Object.entries(DEFAULT_TASK_BLOCKS).map(([key, { role, format, rules }]) => [
-    key,
-    [role, format, rules].filter(Boolean).join("\n\n"),
-  ]),
-);
+let defaultPromptCache = null;
+
+function getDefaultPrompts() {
+  if (defaultPromptCache) {
+    return defaultPromptCache;
+  }
+
+  const prompts = {};
+  for (const [key, block] of Object.entries(DEFAULT_TASK_BLOCKS || {})) {
+    prompts[key] = [block?.role, block?.format, block?.rules]
+      .filter(Boolean)
+      .join("\n\n");
+  }
+
+  defaultPromptCache = prompts;
+  return prompts;
+}
+
+function getDefaultPromptText(taskType = "") {
+  return getDefaultPrompts()[taskType] || "";
+}
 
 const TASK_PROFILE_TABS = [
   { id: "generation", label: "生成参数" },
@@ -1028,27 +1042,27 @@ function _refreshConfigTab() {
 
   _setInputValue(
     "bme-setting-extract-prompt",
-    settings.extractPrompt || DEFAULT_PROMPTS.extract,
+    settings.extractPrompt || getDefaultPromptText("extract"),
   );
   _setInputValue(
     "bme-setting-recall-prompt",
-    settings.recallPrompt || DEFAULT_PROMPTS.recall,
+    settings.recallPrompt || getDefaultPromptText("recall"),
   );
   _setInputValue(
     "bme-setting-consolidation-prompt",
-    settings.consolidationPrompt || DEFAULT_PROMPTS.consolidation,
+    settings.consolidationPrompt || getDefaultPromptText("consolidation"),
   );
   _setInputValue(
     "bme-setting-compress-prompt",
-    settings.compressPrompt || DEFAULT_PROMPTS.compress,
+    settings.compressPrompt || getDefaultPromptText("compress"),
   );
   _setInputValue(
     "bme-setting-synopsis-prompt",
-    settings.synopsisPrompt || DEFAULT_PROMPTS.synopsis,
+    settings.synopsisPrompt || getDefaultPromptText("synopsis"),
   );
   _setInputValue(
     "bme-setting-reflection-prompt",
-    settings.reflectionPrompt || DEFAULT_PROMPTS.reflection,
+    settings.reflectionPrompt || getDefaultPromptText("reflection"),
   );
 
   _refreshFetchedModelSelects(settings);
@@ -1262,7 +1276,7 @@ function _bindConfigControls() {
       const targetId = button.dataset.targetId;
       if (!settingKey || !promptKey || !targetId) return;
       _patchSettings({ [settingKey]: "" }, { refreshPrompts: true });
-      _setInputValue(targetId, DEFAULT_PROMPTS[promptKey] || "");
+      _setInputValue(targetId, getDefaultPromptText(promptKey));
       _refreshPromptCardStates();
     });
     button.dataset.bmeBound = "true";
@@ -1410,7 +1424,7 @@ function bindPromptText(id, settingKey, promptKey) {
   element.addEventListener("change", update);
   element.addEventListener("blur", () => {
     if (!String(element.value || "").trim()) {
-      _setInputValue(id, DEFAULT_PROMPTS[promptKey] || "");
+      _setInputValue(id, getDefaultPromptText(promptKey));
     }
   });
   element.dataset.bmeBound = "true";
@@ -2498,7 +2512,7 @@ function _renderTaskBlockEditor(state) {
   const legacyField = getLegacyPromptFieldForTask(state.taskType);
   const legacyValue =
     legacyField && block.type === "legacyPrompt"
-      ? state.settings?.[legacyField] || block.content || DEFAULT_PROMPTS[state.taskType] || ""
+      ? state.settings?.[legacyField] || block.content || getDefaultPromptText(state.taskType) || ""
       : block.content || "";
 
   return `
diff --git a/prompt-builder.js b/prompt-builder.js
index 8e8dede..d60c8f2 100644
--- a/prompt-builder.js
+++ b/prompt-builder.js
@@ -2,7 +2,6 @@
 // 统一负责任务预设块排序、变量渲染，以及世界书/EJS 上下文接入。
 
 import { getActiveTaskProfile, getLegacyPromptForTask } from "./prompt-profiles.js";
-import { recordTaskPromptBuild } from "./runtime-debug.js";
 import { resolveTaskWorldInfo } from "./task-worldinfo.js";
 
 const WORLD_INFO_VARIABLE_KEYS = [
@@ -15,6 +14,45 @@ const WORLD_INFO_VARIABLE_KEYS = [
   "taskAdditionalMessages",
 ];
 
+function cloneRuntimeDebugValue(value, fallback = null) {
+  if (value == null) {
+    return fallback;
+  }
+
+  try {
+    return JSON.parse(JSON.stringify(value));
+  } catch {
+    return fallback ?? value;
+  }
+}
+
+function getRuntimeDebugState() {
+  const stateKey = "__stBmeRuntimeDebugState";
+  if (
+    !globalThis[stateKey] ||
+    typeof globalThis[stateKey] !== "object"
+  ) {
+    globalThis[stateKey] = {
+      hostCapabilities: null,
+      taskPromptBuilds: {},
+      taskLlmRequests: {},
+      injections: {},
+      updatedAt: "",
+    };
+  }
+  return globalThis[stateKey];
+}
+
+function recordTaskPromptBuild(taskType, snapshot = {}) {
+  const normalizedTaskType = String(taskType || "").trim() || "unknown";
+  const state = getRuntimeDebugState();
+  state.taskPromptBuilds[normalizedTaskType] = {
+    updatedAt: new Date().toISOString(),
+    ...cloneRuntimeDebugValue(snapshot, {}),
+  };
+  state.updatedAt = new Date().toISOString();
+}
+
 function getByPath(target, path) {
   return String(path || "")
     .split(".")