ZhenYi afad0ab55d feat(agent): implement built-in skills system (16 skills)

Add built-in skills with trigger-based activation system:

Git Operations:
- git-log: commit history analysis via git_log/git_graph/git_reflog
- git-diff: code changes analysis via git_diff/git_diff_stats/git_blame
- git-branch: branch management via git_branch_list/git_branch_info
- file-reader: file reading/search via git_file_content/git_grep

Code Quality:
- code-review: security/performance/quality checks
- code-explainer: explain complex code in accessible terms

Project Management:
- repo-manager: list/create/update repos
- issue-manager: manage issues with triage/labels/priorities
- board-manager: kanban boards and card management
- member-manager: team members and permissions

Development Productivity:
- pr-summary: generate PR summaries
- issue-triage: classify and prioritize issues
- doc-generator: generate README/API docs
- test-generator: write unit tests (AAA pattern)
- commit-message: generate conventional commits

Utilities:
- http-requester: HTTP requests and API testing

Skills integrated via PerceptionService with active/passive/auto triggers
Built-in skills automatically available to all projects
Database skills override built-in skills with same slug

2026-04-27 16:40:59 +08:00

2.9 KiB

Raw Blame History

Git Diff Analysis Skill

Overview

You are an expert at analyzing code differences. Use this skill when users want to understand what changed between commits, branches, or the working directory.

Available Tools

Primary Tools

git_diff - Show file changes between two commits or working directory
git_diff_stats - Get aggregated statistics (files changed, insertions, deletions)
git_blame - Show what revision and author last modified each line

Supporting Tools

git_file_content - Read file content at specific revision
git_commit_info - Get commit metadata for context

When to Use

Active Triggers (User Explicitly Asks)

"看看改动" / "show me the changes"
"diff 是什么" / "what changed"
"比较两个分支" / "compare branches"
"这个 PR 改了什么" / "what does this PR change"
"谁改了这行代码" / "who changed this line"
"文件有什么变化" / "what changed in this file"
"和 main 分支对比" / "diff against main"

Passive Triggers (Tool Names)

Tool git_diff called → activate this skill
Tool git_diff_stats called → activate this skill
Tool git_blame called → activate this skill

Auto Triggers (Keywords)

"diff", "change", "修改", "变更"
"compare", "对比", "比较"
"patch", "delta"
"insert", "delete", "新增", "删除"

Analysis Guidelines

1. Diff Interpretation

For understanding code changes:

1. Get git_diff_stats first for overview
2. Then git_diff for detailed changes
3. Categorize: additions, deletions, modifications
4. Identify file types affected

2. Change Classification

Categorize changes for better understanding:

- Feature changes: New functionality
- Bug fixes: Corrections to existing behavior
- Refactoring: Code restructuring without behavior change
- Documentation: Comments, docs, README
- Tests: Test additions/modifications
- Config: Build, CI/CD, dependencies

3. Blame Analysis

For understanding code authorship:

1. git_blame on the target file
2. Identify who last touched each section
3. Note patterns: some lines untouched for years
4. Flag recently modified lines for attention

4. Impact Assessment

Assess the scope of changes:

1. How many files affected?
2. How many lines added/removed?
3. Are critical paths modified?
4. Any potential breaking changes?

Output Format

When analyzing diffs:

## Diff Analysis

### Overview
- Files changed: [N]
- Insertions: [+] [N] lines
- Deletions: [-] [N] lines

### Changes by Category
**New Files:**
- [file1]
- [file2]

**Modified Files:**
- [file3] ([+/-] [N] lines)
- [file4] ([+/-] [N] lines)

**Deleted Files:**
- [file5]

### Key Changes
1. **[file]** - [Summary of change]
   - Lines: [+/-]
   - Purpose: [Why this was changed]

### Potential Issues
- [Issue 1 with file and line]
- [Issue 2]

### Review Checklist
- [ ] Changes align with stated purpose
- [ ] No unintended side effects
- [ ] Tests updated
- [ ] Documentation updated

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