feat: add agent-type request header to CoStrict provider

在 CoStrict provider 的所有 API 请求中注入 agent-type header，
反映当前会话所使用的 agent 或 skill，默认值为 "build"。

- fetch.ts: createCoStrictFetch 接受可选 agentType 参数，PascalCase
  自动转 kebab-case（StrictSpec → strict-spec），注入 agent-type header
- index.ts: queryModelCoStrict 读取 getMainThreadAgentType()（--agent 启动）
  或 getActiveSkillName()（slash skill 触发）作为 agentType
- models.ts: /v1/models 请求添加 User-Agent: csc/{VERSION} header
- state.ts: 新增 activeSkillName 状态及 getter/setter
- processSlashCommand.tsx: inline skill 和 fork skill（context:fork）
  触发时均调用 setActiveSkillName 记录当前 skill/agent 名
- caches.ts: /clear 时调用 setActiveSkillName(undefined) 重置状态，
  避免新会话继承上一会话的 agent-type

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/bootstrap/state.ts

@@ -195,6 +195,8 @@ type State = {
   sdkBetas: string[] | undefined
   // Main thread agent type (from --agent flag or settings)
   mainThreadAgentType: string | undefined
+  // Currently active skill name (set when a /skill-name is invoked)
+  activeSkillName: string | undefined
   // Remote mode (--remote flag)
   isRemoteMode: boolean
   // Direct connect server URL (for display in header)
@@ -381,6 +383,8 @@ function getInitialState(): State {
     sdkBetas: undefined,
     // Main thread agent type
     mainThreadAgentType: undefined,
+    // Currently active skill name
+    activeSkillName: undefined,
     // Remote mode
     isRemoteMode: false,
     ...(process.env.USER_TYPE === 'ant'
@@ -1622,6 +1626,14 @@ export function setMainThreadAgentType(agentType: string | undefined): void {
   STATE.mainThreadAgentType = agentType
 }
 
+export function getActiveSkillName(): string | undefined {
+  return STATE.activeSkillName
+}
+
+export function setActiveSkillName(skillName: string | undefined): void {
+  STATE.activeSkillName = skillName
+}
+
 export function getIsRemoteMode(): boolean {
   return STATE.isRemoteMode
 }

src/commands/clear/caches.ts

@@ -5,6 +5,7 @@
 import { feature } from 'bun:bundle'
 import {
   clearInvokedSkills,
+  setActiveSkillName,
   setLastEmittedDate,
 } from '../../bootstrap/state.js'
 import { clearCommandsCache } from '../../commands.js'
@@ -115,6 +116,8 @@ export function clearSessionCaches(
   if (!hasPreserved) clearAllDumpState()
   // Clear invoked skills cache (each entry holds full skill file content)
   clearInvokedSkills(preservedAgentIds)
+  // Reset active skill name so new session doesn't inherit previous session's agent-type
+  setActiveSkillName(undefined)
   // Clear git dir resolution cache
   clearResolveGitDirCache()
   // Clear dynamic skills (loaded from skill directories)

src/costrict/provider/fetch.ts

@@ -38,6 +38,15 @@ type CoStrictFetch = typeof fetch & {
   preconnect?: (url: string | URL) => void
 }
 
+// PascalCase / camelCase → kebab-case: "StrictSpec" → "strict-spec", "TDD" → "tdd"
+function toKebabCase(s: string | undefined): string | undefined {
+  if (!s) return undefined
+  return s
+    .replace(/([A-Z]+)([A-Z][a-z])/g, '$1-$2')
+    .replace(/([a-z\d])([A-Z])/g, '$1-$2')
+    .toLowerCase()
+}
+
 /**
  * 创建自定义 fetch 函数，用于 CoStrict API 请求
  *
@@ -47,7 +56,10 @@ type CoStrictFetch = typeof fetch & {
  * 3. 注入 Authorization 和 CoStrict 特有 headers
  * 4. 反应性 401 错误恢复（自动重试一次）
  */
-export function createCoStrictFetch(): CoStrictFetch {
+export function createCoStrictFetch(options?: {
+  agentType?: string
+}): CoStrictFetch {
+  const agentType = toKebabCase(options?.agentType) || 'build'
   const costrictFetch = async (
     input: RequestInfo | URL,
     init?: RequestInit,
@@ -94,6 +106,7 @@ export function createCoStrictFetch(): CoStrictFetch {
     headers.set('X-Title', 'CoStrict-CLI')
     headers.set('X-Costrict-Version', `costrict-cli-${VERSION}`)
     headers.set('X-Request-ID', randomUUID())
+    headers.set('agent-type', agentType)
     headers.set('zgsm-client-id', creds.machine_id)
     headers.set('zgsm-client-ide', 'cli')
 

src/costrict/provider/index.ts

@@ -33,6 +33,7 @@ import { resolveCoStrictModel } from './modelMapping.js'
 import { getCoStrictBaseURL } from './auth.js'
 import { loadCoStrictCredentials } from './credentials.js'
 import { isOpenAIThinkingEnabled } from '../../services/api/openai/requestBody.js'
+import { getMainThreadAgentType, getActiveSkillName } from '../../bootstrap/state.js'
 
 /**
  * CoStrict 查询路径
@@ -93,7 +94,9 @@ export async function* queryModelCoStrict(
     const openaiToolChoice = anthropicToolChoiceToOpenAI(options.toolChoice)
 
     // 6. 创建专用的 CoStrict OpenAI 客户端（不缓存，每次使用新的 fetch）
-    const costrictFetch = createCoStrictFetch()
+    const costrictFetch = createCoStrictFetch({
+      agentType: getMainThreadAgentType() ?? getActiveSkillName(),
+    })
     const client = new OpenAI({
       apiKey: 'costrict-managed', // 实际 token 由 createCoStrictFetch 注入
       baseURL: chatBaseURL,

src/costrict/provider/models.ts

@@ -42,6 +42,7 @@ export async function fetchCoStrictModels(
       headers: {
         Authorization: `Bearer ${accessToken}`,
         Accept: 'application/json',
+        'User-Agent': `csc/${MACRO.VERSION}`,
       },
     })
 

src/utils/processUserInput/processSlashCommand.tsx

@@ -25,7 +25,7 @@ import type {
   ProgressMessage,
   UserMessage,
 } from 'src/types/message.js'
-import { addInvokedSkill, getSessionId } from '../../bootstrap/state.js'
+import { addInvokedSkill, getSessionId, setActiveSkillName } from '../../bootstrap/state.js'
 import { COMMAND_MESSAGE_TAG, COMMAND_NAME_TAG } from '../../constants/xml.js'
 import type { CanUseToolFn } from '../../hooks/useCanUseTool.js'
 import {
@@ -162,6 +162,8 @@ async function executeForkedSlashCommand(
       ? { ...baseAgent, effort: command.effort }
       : baseAgent
 
+  setActiveSkillName(agentDefinition.agentType ?? command.name)
+
   logForDebugging(
     `Executing forked slash command /${command.name} with agent ${agentDefinition.agentType}`,
   )
@@ -1230,6 +1232,7 @@ async function getMessagesForPromptSlashCommand(
     skillContent,
     getAgentContext()?.agentId ?? null,
   )
+  setActiveSkillName(command.name)
 
   const metadata = formatCommandLoadingMetadata(command, args)