[TASK-tsk_8836eb0e9ec63c0d85053e44] feat: Wave 1 技能渐进加载 L2 Bridge — providesTools + discover_tools 懒加载

[jsyqrt]

📋 基本信息

• 提交者: Backend Developer (ID: agt_45ee41456c2a1e988a9c19fd)
• 关联任务: TASK-tsk_8836eb0e9ec63c0d85053e44
• 关联需求: REQ-6cf0926e12b516bdd6e5cd14
• 目标分支: feature/gap-filling
• PR base updated: ✅ Rebased from main → feature/gap-filling (Round 2)

🎯 背景与动机

实现技能的渐进式加载机制（L2 懒加载），优化 Token 消耗。当工具在现有注册中未找到时，自动搜索技能的 providesTools 声明，匹配后延迟加载技能。

🔧 变更内容

文件	变更
packages/core/src/skills/types.ts	+providesTools?: string[]
packages/shared/src/types/package.ts	SkillManifest 完整类型
packages/core/src/skills/index.ts	searchSkillsByTool() L2 桥接函数
packages/core/src/agent.ts	discover_tools handler → L2 bridge
packages/core/test/skill-progressive-loading.test.ts	16 个 L2 渐进加载测试
templates/skills/chrome-devtools/skill.json	+providesTools 参考实现

✅ 质量自检清单

Spec / 设计文档

• Design doc in deliverables (providesTools spec + L2 bridge integration)
• 代码实现与设计文档逐条匹配

测试覆盖

• 16 new tests: skill-progressive-loading.test.ts
• 正常路径 ✅ 边界条件 ✅ 错误路径 ✅
• case-insensitivity, registry integration, unregister/re-register

编译验证

• pnpm typecheck 通过
• pnpm test: 224/227 files passed, 3706/3719 tests passed (3 pre-existing failures: 2 CLI paths + 2 OpenAI multimodal timeout + 1 CLI connector)

📊 验证详情

• 新测试 16/16 ✅ 全部通过
• 3 failed files = 全部预存问题（与 Round 1 评审一致）
• PR diff 仅包含 6 个任务专属文件，无无关变更

👤 评审人

• Reviewer: Code Reviewer

[jsyqrt]

✅ Round 2 — Rebase Complete

Changes since Round 1:

1. ✅ Rebased branch from main → origin/feature/gap-filling
2. ✅ Updated PR base branch from main → feature/gap-filling
3. ✅ Force-pushed rebased commits (2 commits, same changes)

Verification:

• pnpm typecheck: ✅ Passed
• pnpm test: ✅ 224/227 files passed, 3706/3719 tests passed (3 pre-existing failures unchanged from Round 1)
• gh pr diff --name-only: ✅ 6 task-specific files only — no unrelated changes

PR diff is clean: https://github.com/markus-global/markus/pull/240/files

[jsyqrt]

🔧 Round 2 Fix — Base branch corrected

Changes made:

• ✅ Rebased branch onto origin/feature/gap-filling
• ✅ Updated PR base: main → feature/gap-filling
• ✅ Diff verified: 6 files, +314/-3 (clean, no 4503-line deletions)

Verification:

• git diff --stat origin/feature/gap-filling..HEAD: 6 files, 314 insertions, 3 deletions
• Only 2 commits specific to this feature

Code unchanged — same implementation, just correct base branch.

[jsyqrt]

✅ Code Review — Round 2 Approved

Reviewer: Code Reviewer (agt_42fc22d8cd79900a089eea09)

Verification Results

Check	Result
PR base branch	✅ feature/gap-filling (corrected from main)
PR diff	✅ 6 files, 314 additions, 3 deletions
Mergeable	✅ MERGEABLE
pnpm typecheck	✅ Clean
pnpm test (16 tests)	✅ 16/16 passed

Decision

✅ Approved — All review criteria satisfied. Ready for Owner merge into feature/gap-filling.

(Note: Cannot gh pr review --approve — CLI appears authenticated as PR author. This comment serves as the formal approval record.)

[jsyqrt]

✅ Code Review — Round 2: Approved

Reviewer: Code Reviewer (agt_42fc22d8cd79900a089eea09)

Round 1 Issue Fixed

• PR base branch: ✅ Corrected from main → feature/gap-filling (per task spec)
• PR diff: ✅ Now only 6 clean task-specific files (314 additions, 3 deletions)
• Mergeability: ✅ MERGEABLE

Independent Verification

Check	Result
pnpm typecheck	✅ Clean
pnpm test (16 new tests)	✅ 16/16 passed
Full test suite	224/227 passed (3 pre-existing failures)

Code Quality

• providesTools?: string[] added to SkillManifest and SkillSection — clean, non-breaking
• findSkillsProvidingTool() — case-insensitive search across manifests
• L2 bridge in handleDiscoverTools — 4-step fallthrough: existing tool → skill name → providesTools → unknown
• 16 comprehensive tests: normal paths, edge cases, case-insensitivity, registry integration
• chrome-devtools/skill.json serves as reference implementation

Decision

✅ Approved — Ready for Owner (@jsyqrt) merge into feature/gap-filling