diff --git a/NEW_FEAT.md b/NEW_FEAT.md
new file mode 100644
index 0000000..04133d7
--- /dev/null
+++ b/NEW_FEAT.md
@@ -0,0 +1,185 @@
+# NEW_FEAT — Dirigent 设计草案（channel 成员缓存驱动 turn 初始化）
+
+## 背景
+
+当前 turn manager 初始化依赖 `recordChannelAccount`（被动观察频道里出现过哪些 bot account）。
+在新频道/低活跃频道中，可能出现 turn state 未及时建立，导致 `currentSpeaker` 为空（`undefined/null`）并引发调度异常。
+
+同时，`discord-control-api` 以独立 sidecar 运行增加了部署与运维复杂度。
+
+---
+
+## 目标
+
+1. 将 Discord control 能力从独立 API server 收敛为插件内模块（类似 turn-manager.ts 的内部模块化）。
+2. 引入 **channel 成员列表缓存（内存 + 本地文件持久化）**，作为 turn 初始化的权威输入。
+3. 成员列表采用 **事件/工具触发更新**，不轮询。
+
+---
+
+## 方案总览
+
+### A. 架构调整
+
+- 新增模块：`plugin/discord-control.ts`
+- 迁移当前 `discord-control-api/server.mjs` 的核心能力为模块函数：
+  - `channelPrivateCreate`
+  - `channelPrivateUpdate`
+  - `guildMemberList`
+  - `channelMemberList`（新增）
+
+> 说明：`channelMemberList` 通过 Discord 权限计算（guild 成员 + channel overwrite）得到可见成员。
+
+---
+
+### B. channel 成员缓存（内存 + 本地持久化）
+
+建议新增缓存文件（示例）：
+- `~/.openclaw/dirigent-channel-members.json`
+
+结构示例：
+
+```json
+{
+  "1479928646830391346": {
+    "guildId": "1368531017534537779",
+    "memberUserIds": ["..."],
+    "botAccountIds": ["neon", "nav", "lyn"],
+    "updatedAt": "2026-03-07T21:40:00Z",
+    "source": "tool|bootstrap|channel-private-update"
+  }
+}
+```
+
+插件启动时加载到内存；更新时先改内存再原子写盘。
+
+---
+
+### C. 更新策略（不轮询）
+
+只在以下时机刷新某 channel 成员：
+
+1. 通过指定工具显式更新（手动触发）
+2. `channel-private-create` 成功后刷新该 channel
+3. `channel-private-update` 成功后刷新该 channel
+4. （建议兜底）首次遇到无缓存 channel 时允许一次 bootstrap 拉取并落盘
+
+> 除上述触发外，不做轮询保活。
+
+---
+
+### D. turn manager 初始化改造
+
+当前：
+- `ensureTurnOrder()` 依赖 `recordChannelAccount` 的被动观察结果
+
+改造后：
+- `ensureTurnOrder(channelId)` 直接读取 channel 成员缓存中的 `botAccountIds`
+- 有可用 bot 列表即 `initTurnOrder(channelId, botAccountIds)`
+- 不再把 `recordChannelAccount` 作为主初始化来源（可保留为辅助观测）
+
+预期效果：
+- 新频道首次消息即可建立 turn state
+- 避免 `currentSpeaker` 长时间空值导致的并发生成异常
+
+---
+
+### E. 统一 channelId 解析（`deriveDecisionInputFromPrompt` 对齐 `extractDiscordChannelId`）
+
+问题点：
+- `deriveDecisionInputFromPrompt(prompt, messageProvider, ctx.channelId)` 目前可能优先使用 `ctx.channelId`。
+- 在 OpenClaw 的 Discord 场景中，`ctx.channelId` 常是平台名（`"discord"`），不是 snowflake。
+
+改造建议：
+- 在 `before_model_resolve / before_prompt_build` 路径中，先走与消息钩子一致的解析逻辑：
+  1. `extractDiscordChannelId(ctx, event)`（优先）
+  2. `sessionKey` 正则兜底（`discord:(channel|group):<id>` 或 `:channel:<id>`）
+  3. prompt 中 untrusted metadata（`chat_id` / `conversation_label` / `channel_id`）作为最后兜底
+- `ctx.channelId` 仅作为末级 fallback，不再作为高优先级输入。
+
+目标：
+- 让 `message_received / message_sent / before_model_resolve / before_prompt_build` 使用一致的 channelId 来源，避免出现 `channel=discord` 导致 turn/policy 失配。
+
+---
+
+### F. 清理未使用函数（减小维护噪音）
+
+当前检查到 `plugin/index.ts` 中存在未被引用的函数：
+- `normalizeSender(...)`
+- `normalizeChannel(...)`
+
+计划：
+- 在完成 channelId 解析统一改造后，移除上述未使用函数与相关无效注释。
+- 如后续确实需要其语义，改为在统一解析模块内落地实际调用，不保留“仅定义不使用”的中间状态。
+
+目标：
+- 降低代码噪音，避免误导排障（看起来像在用，实际没走到）。
+- 保持关键路径（sender/channel 解析）只有一套可追踪实现。
+
+---
+
+## Discord 权限计算要点（channelMemberList）
+
+按 Discord 规则计算 `VIEW_CHANNEL` 可见性：
+
+1. 基于 guild 基础权限（@everyone + 角色）
+2. 叠加 channel `permission_overwrites`：
+   - @everyone overwrite
+   - role overwrites（合并）
+   - member overwrite（最终）
+3. 最终判定是否可见频道
+
+> 私密线程与普通私密文本频道语义不同，需分路径处理。
+
+---
+
+## 风险与注意
+
+- 权限位计算需严格按 Discord bitfield 规则实现，否则成员集会偏差。
+- 缓存文件读写要原子化，防止并发写损坏。
+- 建议记录 `updatedAt/source` 便于排查“成员集为何变化”。
+
+---
+
+### G. 模块化重构（拆分 `plugin/index.ts`）
+
+现状：
+- `plugin/index.ts` 体积过大，hook、工具、状态、解析逻辑耦合在一起，排障成本高。
+
+重构方向：
+- `plugin/hooks/`
+  - `message-received.ts`
+  - `before-model-resolve.ts`
+  - `before-prompt-build.ts`
+  - `before-message-write.ts`
+  - `message-sent.ts`
+- `plugin/core/`
+  - `decision-input.ts`
+  - `channel-resolver.ts`
+  - `session-state.ts`
+- `plugin/policy/`
+  - `policy-store.ts`
+  - `policy-resolver.ts`
+- `plugin/tools/`
+  - `discord-control-tools.ts`
+  - `policy-tools.ts`
+- `plugin/index.ts`
+  - 仅保留 wiring（注册工具 + 注册 hooks + 生命周期管理）
+
+目标：
+- 单文件职责清晰，便于定位问题与编写回归测试。
+- 关键路径（channel/sender/session/turn）统一入口，避免同逻辑多处实现漂移。
+
+---
+
+## 里程碑建议
+
+1. 抽离 `discord-control.ts`（功能等价迁移）
+2. 增加成员缓存存储与读写
+3. 实现 `channelMemberList` 权限计算
+4. 打通 create/update 工具触发刷新
+5. 改造 turn 初始化读取缓存
+6. 统一 channelId 解析到 `extractDiscordChannelId` 路径
+7. 清理未使用函数（`normalizeSender` / `normalizeChannel`）
+8. 模块化拆分 `plugin/index.ts`（最少先拆 core 解析层）
+9. 增加调试日志与回归测试（新频道首条消息场景）
diff --git a/plugin/channel-resolver.ts b/plugin/channel-resolver.ts
new file mode 100644
index 0000000..c795b1b
--- /dev/null
+++ b/plugin/channel-resolver.ts
@@ -0,0 +1,73 @@
+export function extractDiscordChannelId(ctx: Record<string, unknown>, event?: Record<string, unknown>): string | undefined {
+  const candidates: unknown[] = [
+    ctx.conversationId,
+    ctx.OriginatingTo,
+    event?.to,
+    (event?.metadata as Record<string, unknown>)?.to,
+  ];
+
+  for (const c of candidates) {
+    if (typeof c !== "string" || !c.trim()) continue;
+    const s = c.trim();
+
+    if (s.startsWith("channel:")) {
+      const id = s.slice("channel:".length);
+      if (/^\d+$/.test(id)) return id;
+    }
+
+    if (s.startsWith("discord:channel:")) {
+      const id = s.slice("discord:channel:".length);
+      if (/^\d+$/.test(id)) return id;
+    }
+
+    if (/^\d{15,}$/.test(s)) return s;
+  }
+
+  return undefined;
+}
+
+export function extractDiscordChannelIdFromSessionKey(sessionKey?: string): string | undefined {
+  if (!sessionKey) return undefined;
+
+  const canonical = sessionKey.match(/discord:(?:channel|group):(\d+)/);
+  if (canonical?.[1]) return canonical[1];
+
+  const suffix = sessionKey.match(/:channel:(\d+)$/);
+  if (suffix?.[1]) return suffix[1];
+
+  return undefined;
+}
+
+export function extractUntrustedConversationInfo(text: string): Record<string, unknown> | undefined {
+  const marker = "Conversation info (untrusted metadata):";
+  const idx = text.indexOf(marker);
+  if (idx < 0) return undefined;
+  const tail = text.slice(idx + marker.length);
+  const m = tail.match(/```json\s*([\s\S]*?)\s*```/i);
+  if (!m) return undefined;
+
+  try {
+    const parsed = JSON.parse(m[1]);
+    return parsed && typeof parsed === "object" ? (parsed as Record<string, unknown>) : undefined;
+  } catch {
+    return undefined;
+  }
+}
+
+export function extractDiscordChannelIdFromConversationMetadata(conv: Record<string, unknown>): string | undefined {
+  if (typeof conv.chat_id === "string" && conv.chat_id.startsWith("channel:")) {
+    const id = conv.chat_id.slice("channel:".length);
+    if (/^\d+$/.test(id)) return id;
+  }
+
+  if (typeof conv.conversation_label === "string") {
+    const labelMatch = conv.conversation_label.match(/channel id:(\d+)/);
+    if (labelMatch?.[1]) return labelMatch[1];
+  }
+
+  if (typeof conv.channel_id === "string" && /^\d+$/.test(conv.channel_id)) {
+    return conv.channel_id;
+  }
+
+  return undefined;
+}
diff --git a/plugin/decision-input.ts b/plugin/decision-input.ts
new file mode 100644
index 0000000..dc176e5
--- /dev/null
+++ b/plugin/decision-input.ts
@@ -0,0 +1,37 @@
+import {
+  extractDiscordChannelId,
+  extractDiscordChannelIdFromConversationMetadata,
+  extractDiscordChannelIdFromSessionKey,
+  extractUntrustedConversationInfo,
+} from "./channel-resolver.js";
+
+export type DerivedDecisionInput = {
+  channel: string;
+  channelId?: string;
+  senderId?: string;
+  content: string;
+  conv: Record<string, unknown>;
+};
+
+export function deriveDecisionInputFromPrompt(params: {
+  prompt: string;
+  messageProvider?: string;
+  sessionKey?: string;
+  ctx?: Record<string, unknown>;
+  event?: Record<string, unknown>;
+}): DerivedDecisionInput {
+  const { prompt, messageProvider, sessionKey, ctx, event } = params;
+  const conv = extractUntrustedConversationInfo(prompt) || {};
+  const channel = (messageProvider || "").toLowerCase();
+
+  let channelId = extractDiscordChannelId(ctx || {}, event);
+  if (!channelId) channelId = extractDiscordChannelIdFromSessionKey(sessionKey);
+  if (!channelId) channelId = extractDiscordChannelIdFromConversationMetadata(conv);
+
+  const senderId =
+    (typeof conv.sender_id === "string" && conv.sender_id) ||
+    (typeof conv.sender === "string" && conv.sender) ||
+    undefined;
+
+  return { channel, channelId, senderId, content: prompt, conv };
+}
diff --git a/plugin/index.ts b/plugin/index.ts
index f6a4779..d0c73f4 100644
--- a/plugin/index.ts
+++ b/plugin/index.ts
@@ -5,6 +5,8 @@ import type { OpenClawPluginApi } from "openclaw/plugin-sdk";
 import { evaluateDecision, resolvePolicy, type ChannelPolicy, type Decision, type DirigentConfig } from "./rules.js";
 import { checkTurn, advanceTurn, resetTurn, onNewMessage, onSpeakerDone, initTurnOrder, getTurnDebugInfo, setMentionOverride, hasMentionOverride, setWaitingForHuman, isWaitingForHuman } from "./turn-manager.js";
 import { startModeratorPresence, stopModeratorPresence } from "./moderator-presence.js";
+import { extractDiscordChannelId, extractDiscordChannelIdFromSessionKey } from "./channel-resolver.js";
+import { deriveDecisionInputFromPrompt } from "./decision-input.js";
 
 // ── No-Reply API child process lifecycle ──────────────────────────────
 let noReplyProcess: ChildProcess | null = null;
@@ -97,116 +99,6 @@ const policyState: PolicyState = {
   channelPolicies: {},
 };
 
-function normalizeChannel(ctx: Record<string, unknown>): string {
-  const candidates = [ctx.commandSource, ctx.messageProvider, ctx.channelId, ctx.channel];
-  for (const c of candidates) {
-    if (typeof c === "string" && c.trim()) return c.trim().toLowerCase();
-  }
-  return "";
-}
-
-/**
- * Extract the actual Discord channel ID from a conversationId or "to" field.
- * OpenClaw uses format "channel:<snowflake>" for Discord conversations.
- * Also tries event.to and event.metadata.to as fallbacks.
- */
-function extractDiscordChannelId(ctx: Record<string, unknown>, event?: Record<string, unknown>): string | undefined {
-  const candidates: unknown[] = [
-    ctx.conversationId,
-    event?.to,
-    (event?.metadata as Record<string, unknown>)?.to,
-  ];
-  for (const c of candidates) {
-    if (typeof c === "string" && c.trim()) {
-      const s = c.trim();
-      // Handle "channel:123456" format
-      if (s.startsWith("channel:")) {
-        const id = s.slice("channel:".length);
-        if (/^\d+$/.test(id)) return id;
-      }
-      // Handle "discord:channel:123456" format
-      if (s.startsWith("discord:channel:")) {
-        const id = s.slice("discord:channel:".length);
-        if (/^\d+$/.test(id)) return id;
-      }
-      // If it's a raw snowflake (all digits), use directly
-      if (/^\d{15,}$/.test(s)) return s;
-    }
-  }
-  return undefined;
-}
-
-function normalizeSender(event: Record<string, unknown>, ctx: Record<string, unknown>): string | undefined {
-  const direct = [ctx.senderId, ctx.from, event.from];
-  for (const v of direct) {
-    if (typeof v === "string" && v.trim()) return v.trim();
-  }
-
-  const meta = (event.metadata || ctx.metadata) as Record<string, unknown> | undefined;
-  if (!meta) return undefined;
-  const metaCandidates = [meta.senderId, meta.sender_id, meta.userId, meta.user_id];
-  for (const v of metaCandidates) {
-    if (typeof v === "string" && v.trim()) return v.trim();
-  }
-
-  return undefined;
-}
-
-function extractUntrustedConversationInfo(text: string): Record<string, unknown> | undefined {
-  const marker = "Conversation info (untrusted metadata):";
-  const idx = text.indexOf(marker);
-  if (idx < 0) return undefined;
-  const tail = text.slice(idx + marker.length);
-  const m = tail.match(/```json\s*([\s\S]*?)\s*```/i);
-  if (!m) return undefined;
-  try {
-    const parsed = JSON.parse(m[1]);
-    return parsed && typeof parsed === "object" ? (parsed as Record<string, unknown>) : undefined;
-  } catch {
-    return undefined;
-  }
-}
-
-function deriveDecisionInputFromPrompt(
-  prompt: string,
-  messageProvider?: string,
-  channelIdFromCtx?: string,
-): {
-  channel: string;
-  channelId?: string;
-  senderId?: string;
-  content: string;
-  conv: Record<string, unknown>;
-} {
-  const conv = extractUntrustedConversationInfo(prompt) || {};
-  const channel = (messageProvider || "").toLowerCase();
-
-  // Priority: ctx.channelId > conv.chat_id > conversation_label > conv.channel_id
-  let channelId = channelIdFromCtx;
-  if (!channelId) {
-    // Try chat_id field (format "channel:123456")
-    if (typeof conv.chat_id === "string" && conv.chat_id.startsWith("channel:")) {
-      channelId = conv.chat_id.slice("channel:".length);
-    }
-    // Try conversation_label (format "Guild #name channel id:123456")
-    if (!channelId && typeof conv.conversation_label === "string") {
-      const labelMatch = conv.conversation_label.match(/channel id:(\d+)/);
-      if (labelMatch) channelId = labelMatch[1];
-    }
-    // Try channel_id field directly
-    if (!channelId && typeof conv.channel_id === "string" && conv.channel_id) {
-      channelId = conv.channel_id;
-    }
-  }
-
-  const senderId =
-    (typeof conv.sender_id === "string" && conv.sender_id) ||
-    (typeof conv.sender === "string" && conv.sender) ||
-    undefined;
-
-  return { channel, channelId, senderId, content: prompt, conv };
-}
-
 function pruneDecisionMap(now = Date.now()) {
   for (const [k, v] of sessionDecision.entries()) {
     if (now - v.createdAt > DECISION_TTL_MS) sessionDecision.delete(k);
@@ -916,12 +808,13 @@ export default {
         );
       }
 
-      const derived = deriveDecisionInputFromPrompt(prompt, ctx.messageProvider, ctx.channelId);
-      // Fallback: extract channelId from sessionKey (format "agent:<id>:discord:channel:<channelId>")
-      if (!derived.channelId && key) {
-        const skMatch = key.match(/:channel:(\d+)$/);
-        if (skMatch) derived.channelId = skMatch[1];
-      }
+      const derived = deriveDecisionInputFromPrompt({
+        prompt,
+        messageProvider: ctx.messageProvider,
+        sessionKey: key,
+        ctx: ctx as Record<string, unknown>,
+        event: event as Record<string, unknown>,
+      });
       // Only proceed if: discord channel AND prompt contains untrusted metadata
       const hasConvMarker = prompt.includes("Conversation info (untrusted metadata):");
       if (live.discordOnly !== false && (!hasConvMarker || derived.channel !== "discord")) return;
@@ -1034,7 +927,13 @@ export default {
         if (rec) sessionDecision.delete(key);
 
         const prompt = ((event as Record<string, unknown>).prompt as string) || "";
-        const derived = deriveDecisionInputFromPrompt(prompt, ctx.messageProvider, ctx.channelId);
+        const derived = deriveDecisionInputFromPrompt({
+          prompt,
+          messageProvider: ctx.messageProvider,
+          sessionKey: key,
+          ctx: ctx as Record<string, unknown>,
+          event: event as Record<string, unknown>,
+        });
 
         const decision = evaluateDecision({
           config: live,
@@ -1080,7 +979,13 @@ export default {
 
       // Resolve end symbols from config/policy for dynamic instruction
       const prompt = ((event as Record<string, unknown>).prompt as string) || "";
-      const derived = deriveDecisionInputFromPrompt(prompt, ctx.messageProvider, ctx.channelId);
+      const derived = deriveDecisionInputFromPrompt({
+        prompt,
+        messageProvider: ctx.messageProvider,
+        sessionKey: key,
+        ctx: ctx as Record<string, unknown>,
+        event: event as Record<string, unknown>,
+      });
       const policy = resolvePolicy(live, derived.channelId, policyState.channelPolicies);
       const isGroupChat = derived.conv.is_group_chat === true || derived.conv.is_group_chat === "true";
       const schedulingId = live.schedulingIdentifier || "➡️";
@@ -1319,8 +1224,7 @@ export default {
           channelId = sessionChannelId.get(key);
         }
         if (!channelId && key) {
-          const skMatch = key.match(/:channel:(\d+)$/);
-          if (skMatch) channelId = skMatch[1];
+          channelId = extractDiscordChannelIdFromSessionKey(key);
         }
         const accountId = (ctx.accountId as string | undefined) || (key ? sessionAccountId.get(key) : undefined);
         const content = (event.content as string) || "";