feat: 将 Agents/Teams 工具纳入 Tool Search 按需发现

将 TeamCreate、TeamDelete、SendMessage 从 CORE_TOOLS 移除，
使其成为 deferred 工具，通过 ToolSearch 按需发现以减少 context token。
swarm 模式下 SendMessage 保持 always loaded，TeamCreate/TeamDelete
在 swarm 未启用时调用返回启用提示。

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

src/constants/__tests__/tools.test.ts

@@ -52,8 +52,8 @@ function makeTool(overrides: Partial<MockTool> = {}): MockTool {
 
 describe('CORE_TOOLS', () => {
   test('contains expected number of tools', () => {
-    // 7 SHELL_TOOL_NAMES + 22 independent tool names
-    expect(CORE_TOOLS.size).toBeGreaterThanOrEqual(29)
+    // 7 SHELL_TOOL_NAMES + 19 independent tool names
+    expect(CORE_TOOLS.size).toBeGreaterThanOrEqual(26)
   })
 
   test('contains key core tool names', () => {
@@ -72,8 +72,6 @@ describe('CORE_TOOLS', () => {
       'Sleep',
       'LSP',
       'Skill',
-      'TeamCreate',
-      'TeamDelete',
       'TaskCreate',
       'TaskGet',
       'TaskUpdate',
@@ -124,6 +122,15 @@ describe('isDeferredTool', () => {
     expect(isDeferredTool(tool as never)).toBe(true)
   })
 
+  test('returns true for agent/team tools (TeamCreate, TeamDelete, SendMessage)', () => {
+    for (const name of ['TeamCreate', 'TeamDelete', 'SendMessage']) {
+      const tool = makeTool({ name })
+      expect(isDeferredTool(tool as never), `${name} should be deferred`).toBe(
+        true,
+      )
+    }
+  })
+
   test('returns true for MCP tools', () => {
     const tool = makeTool({ name: 'mcp__server__action', isMcp: true })
     expect(isDeferredTool(tool as never)).toBe(true)

src/constants/tools.ts

@@ -135,10 +135,6 @@ export const CORE_TOOLS = new Set([
   // Agent & interaction
   AGENT_TOOL_NAME, // 'Agent'
   ASK_USER_QUESTION_TOOL_NAME, // 'AskUserQuestion'
-  SEND_MESSAGE_TOOL_NAME, // 'SendMessage'
-  // Team (swarm)
-  TEAM_CREATE_TOOL_NAME, // 'TeamCreate'
-  TEAM_DELETE_TOOL_NAME, // 'TeamDelete'
   // Task management
   TASK_OUTPUT_TOOL_NAME, // 'TaskOutput'
   TASK_STOP_TOOL_NAME, // 'TaskStop'

src/tools.ts

@@ -247,9 +247,8 @@ export function getAllBaseTools(): Tools {
     ...(isWorktreeModeEnabled() ? [EnterWorktreeTool, ExitWorktreeTool] : []),
     getSendMessageTool(),
     ...(ListPeersTool ? [ListPeersTool] : []),
-    ...(isAgentSwarmsEnabled()
-      ? [getTeamCreateTool(), getTeamDeleteTool()]
-      : []),
+    getTeamCreateTool(),
+    getTeamDeleteTool(),
     ...(VerifyPlanExecutionTool ? [VerifyPlanExecutionTool] : []),
     ...(process.env.USER_TYPE === 'ant' && REPLTool ? [REPLTool] : []),
     ...(WorkflowTool ? [WorkflowTool] : []),