feat: 工具层及 mcp 大重构 (#252)

* feat: 第一版大重构

* fix: 修复类型问题

* chore: 更新版本到 1.3.2

* Add brave as alternative WebSearchTool

* fix: 修正顺序

* fix: 修复对穷鬼模式的 auto dream 和 session memory 越过

* feat: 穷鬼模式去除 session-summary

* feat: 创建 builtin-tools 包，搬运所有工具实现

将 src/tools/ 下的全部 60 个工具目录迁移至 packages/builtin-tools/src/tools/，
内部导入路径已更新为 src/ alias 模式。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: 更新 src/ 中所有工具引用至 builtin-tools 包，删除 src/tools/

- src/tools.ts 及 178 个 src/ 文件的 import 路径从 ./tools/ 改为 builtin-tools/tools/
- 删除 src/tools/ 整个目录（已迁移至 packages/builtin-tools/）

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* chore: 添加 builtin-tools 路径别名至 tsconfig，更新 bun.lock

- tsconfig.json 新增 builtin-tools/* 和 builtin-tools 路径映射
- 新增 packages/builtin-tools/src 至 include

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: 为 builtin-tools、mcp-client、agent-tools 添加 @claude-code-best 作用域前缀

所有包名及 import 路径统一添加 @claude-code-best/ 前缀：
- builtin-tools → @claude-code-best/builtin-tools
- mcp-client → @claude-code-best/mcp-client
- agent-tools → @claude-code-best/agent-tools

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: 修复 node 环境没有 bun 的问题

---------

Co-authored-by: Eric-Guo <eric.guocz@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

packages/builtin-tools/src/tools/AgentTool/__tests__/agentToolUtils.test.ts

@@ -0,0 +1,253 @@
+import { mock, describe, expect, test } from "bun:test";
+
+// ─── Mocks for agentToolUtils.ts dependencies ───
+// Only mock modules that are truly unavailable or cause side effects.
+// Do NOT mock common/shared modules (zod/v4, bootstrap/state, etc.) to avoid
+// corrupting the module cache for other test files in the same Bun process.
+
+const noop = () => {};
+
+mock.module("bun:bundle", () => ({ feature: () => false }));
+
+mock.module("src/constants/tools.js", () => ({
+  ALL_AGENT_DISALLOWED_TOOLS: new Set(),
+  ASYNC_AGENT_ALLOWED_TOOLS: new Set(),
+  CUSTOM_AGENT_DISALLOWED_TOOLS: new Set(),
+  IN_PROCESS_TEAMMATE_ALLOWED_TOOLS: new Set(),
+}));
+
+mock.module("src/services/AgentSummary/agentSummary.js", () => ({
+  startAgentSummarization: noop,
+}));
+
+mock.module("src/services/analytics/index.js", () => ({
+  logEvent: noop,
+  logEventAsync: async () => {},
+  stripProtoFields: (v: any) => v,
+  attachAnalyticsSink: noop,
+  _resetForTesting: noop,
+  AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS: undefined,
+}));
+
+mock.module("src/services/api/dumpPrompts.js", () => ({
+  clearDumpState: noop,
+}));
+
+mock.module("src/Tool.js", () => ({
+  toolMatchesName: () => false,
+  findToolByName: noop,
+}));
+
+// messages.ts is complex - provide stubs for all named exports
+mock.module("src/utils/messages.ts", () => ({
+  extractTextContent: (content: any[]) =>
+    content?.filter?.((b: any) => b.type === "text")?.map?.((b: any) => b.text)?.join("") ?? "",
+  getLastAssistantMessage: () => null,
+  SYNTHETIC_MESSAGES: new Set(),
+  INTERRUPT_MESSAGE: "",
+  INTERRUPT_MESSAGE_FOR_TOOL_USE: "",
+  CANCEL_MESSAGE: "",
+  REJECT_MESSAGE: "",
+  REJECT_MESSAGE_WITH_REASON_PREFIX: "",
+  SUBAGENT_REJECT_MESSAGE: "",
+  SUBAGENT_REJECT_MESSAGE_WITH_REASON_PREFIX: "",
+  PLAN_REJECTION_PREFIX: "",
+  DENIAL_WORKAROUND_GUIDANCE: "",
+  NO_RESPONSE_REQUESTED: "",
+  SYNTHETIC_TOOL_RESULT_PLACEHOLDER: "",
+  SYNTHETIC_MODEL: "",
+  AUTO_REJECT_MESSAGE: noop,
+  DONT_ASK_REJECT_MESSAGE: noop,
+  withMemoryCorrectionHint: (s: string) => s,
+  deriveShortMessageId: () => "",
+  isClassifierDenial: () => false,
+  buildYoloRejectionMessage: () => "",
+  buildClassifierUnavailableMessage: () => "",
+  isEmptyMessageText: () => true,
+  createAssistantMessage: noop,
+  createAssistantAPIErrorMessage: noop,
+  createUserMessage: noop,
+  prepareUserContent: noop,
+  createUserInterruptionMessage: noop,
+  createSyntheticUserCaveatMessage: noop,
+  formatCommandInputTags: noop,
+}));
+
+mock.module("src/tasks/LocalAgentTask/LocalAgentTask.js", () => ({
+  completeAgentTask: noop,
+  createActivityDescriptionResolver: () => ({}),
+  createProgressTracker: () => ({}),
+  enqueueAgentNotification: noop,
+  failAgentTask: noop,
+  getProgressUpdate: () => ({ tokenCount: 0, toolUseCount: 0 }),
+  getTokenCountFromTracker: () => 0,
+  isLocalAgentTask: () => false,
+  killAsyncAgent: noop,
+  updateAgentProgress: noop,
+  updateProgressFromMessage: noop,
+}));
+
+mock.module("src/utils/debug.js", () => ({
+  getMinDebugLogLevel: () => "warn",
+  isDebugMode: () => false,
+  enableDebugLogging: () => false,
+  getDebugFilter: () => null,
+  isDebugToStdErr: () => false,
+  getDebugFilePath: () => null,
+  setHasFormattedOutput: noop,
+  getHasFormattedOutput: () => false,
+  flushDebugLogs: async () => {},
+  logForDebugging: noop,
+  getDebugLogPath: () => "",
+  logAntError: noop,
+}));
+
+mock.module("src/utils/errors.js", () => ({
+  ClaudeError: class extends Error {},
+  MalformedCommandError: class extends Error {},
+  AbortError: class extends Error {},
+  ConfigParseError: class extends Error {},
+  ShellError: class extends Error {},
+  TeleportOperationError: class extends Error {},
+  TelemetrySafeError_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS: class extends Error {},
+  isAbortError: () => false,
+  hasExactErrorMessage: () => false,
+  toError: (e: any) => e instanceof Error ? e : new Error(String(e)),
+  errorMessage: (e: any) => String(e),
+  getErrnoCode: () => undefined,
+  isENOENT: () => false,
+  getErrnoPath: () => undefined,
+  shortErrorStack: () => "",
+  isFsInaccessible: () => false,
+  classifyAxiosError: () => ({ category: "unknown" }),
+}));
+
+mock.module("src/utils/forkedAgent.js", () => ({}));
+
+mock.module("src/utils/permissions/yoloClassifier.js", () => ({
+  buildTranscriptForClassifier: () => "",
+  classifyYoloAction: () => null,
+}));
+
+mock.module("src/utils/task/sdkProgress.js", () => ({
+  emitTaskProgress: noop,
+}));
+
+mock.module("src/utils/tokens.js", () => ({
+  getTokenCountFromUsage: () => 0,
+}));
+
+mock.module("src/tools/ExitPlanModeTool/constants.js", () => ({
+  EXIT_PLAN_MODE_V2_TOOL_NAME: "exit_plan_mode",
+}));
+
+mock.module("src/tools/AgentTool/constants.js", () => ({
+  AGENT_TOOL_NAME: "agent",
+  LEGACY_AGENT_TOOL_NAME: "task",
+}));
+
+mock.module("src/tools/AgentTool/loadAgentsDir.js", () => ({}));
+
+mock.module("src/state/AppState.js", () => ({}));
+
+mock.module("src/types/ids.js", () => ({
+  asAgentId: (id: string) => id,
+}));
+
+// Break circular dep
+mock.module("src/tools/AgentTool/AgentTool.tsx", () => ({
+  AgentTool: {},
+  inputSchema: {},
+  outputSchema: {},
+  default: {},
+}));
+
+const {
+  countToolUses,
+  getLastToolUseName,
+} = await import("../agentToolUtils");
+
+function makeAssistantMessage(content: any[]): any {
+  return { type: "assistant", message: { content } };
+}
+
+function makeUserMessage(text: string): any {
+  return { type: "user", message: { content: text } };
+}
+
+describe("countToolUses", () => {
+  test("counts tool_use blocks in messages", () => {
+    const messages = [
+      makeAssistantMessage([
+        { type: "tool_use", name: "Read" },
+        { type: "text", text: "hello" },
+      ]),
+    ];
+    expect(countToolUses(messages)).toBe(1);
+  });
+
+  test("returns 0 for messages without tool_use", () => {
+    const messages = [
+      makeAssistantMessage([{ type: "text", text: "hello" }]),
+    ];
+    expect(countToolUses(messages)).toBe(0);
+  });
+
+  test("returns 0 for empty array", () => {
+    expect(countToolUses([])).toBe(0);
+  });
+
+  test("counts multiple tool_use blocks across messages", () => {
+    const messages = [
+      makeAssistantMessage([{ type: "tool_use", name: "Read" }]),
+      makeUserMessage("ok"),
+      makeAssistantMessage([{ type: "tool_use", name: "Write" }]),
+    ];
+    expect(countToolUses(messages)).toBe(2);
+  });
+
+  test("counts tool_use in single message with multiple blocks", () => {
+    const messages = [
+      makeAssistantMessage([
+        { type: "tool_use", name: "Read" },
+        { type: "tool_use", name: "Grep" },
+        { type: "tool_use", name: "Write" },
+      ]),
+    ];
+    expect(countToolUses(messages)).toBe(3);
+  });
+});
+
+describe("getLastToolUseName", () => {
+  test("returns last tool name from assistant message", () => {
+    const msg = makeAssistantMessage([
+      { type: "tool_use", name: "Read" },
+      { type: "tool_use", name: "Write" },
+    ]);
+    expect(getLastToolUseName(msg)).toBe("Write");
+  });
+
+  test("returns undefined for message without tool_use", () => {
+    const msg = makeAssistantMessage([{ type: "text", text: "hello" }]);
+    expect(getLastToolUseName(msg)).toBeUndefined();
+  });
+
+  test("returns the last tool when multiple tool_uses present", () => {
+    const msg = makeAssistantMessage([
+      { type: "tool_use", name: "Read" },
+      { type: "tool_use", name: "Grep" },
+      { type: "tool_use", name: "Edit" },
+    ]);
+    expect(getLastToolUseName(msg)).toBe("Edit");
+  });
+
+  test("returns undefined for non-assistant message", () => {
+    const msg = makeUserMessage("hello");
+    expect(getLastToolUseName(msg)).toBeUndefined();
+  });
+
+  test("handles message with null content", () => {
+    const msg = { type: "assistant", message: { content: null } } as any;
+    expect(getLastToolUseName(msg)).toBeUndefined();
+  });
+});