Agent Skills › WingedGuardian/GENesis-AGI › gitnexus-impact-analysis

gitnexus-impact-analysis

GitHub

用于代码修改前的影响分析，评估变更风险。通过追踪依赖关系和受影响流程，识别潜在破坏点，辅助开发者安全地进行代码重构或提交。

.claude/skills/gitnexus/gitnexus-impact-analysis/SKILL.md WingedGuardian/GENesis-AGI

Trigger Scenarios

询问修改某代码是否安全查询某模块的依赖者评估代码变更的影响范围提交前进行安全检查

Install

npx skills add WingedGuardian/GENesis-AGI --skill gitnexus-impact-analysis -g -y

More Options

Non-standard path

npx skills add https://github.com/WingedGuardian/GENesis-AGI/tree/main/.claude/skills/gitnexus/gitnexus-impact-analysis -g -y

Use without installing

npx skills use WingedGuardian/GENesis-AGI@gitnexus-impact-analysis

指定 Agent (Claude Code)

npx skills add WingedGuardian/GENesis-AGI --skill gitnexus-impact-analysis -a claude-code -g -y

安装 repo 全部 skill

npx skills add WingedGuardian/GENesis-AGI --all -g -y

预览 repo 内 skill

npx skills add WingedGuardian/GENesis-AGI --list

SKILL.md

Frontmatter

{
    "name": "gitnexus-impact-analysis",
    "description": "Use when the user wants to know what will break if they change something, or needs safety analysis before editing code. Examples: \"Is it safe to change X?\", \"What depends on this?\", \"What will break?\""
}

Impact Analysis with GitNexus

When to Use

"Is it safe to change this function?"
"What will break if I modify X?"
"Show me the blast radius"
"Who uses this code?"
Before making non-trivial code changes
Before committing — to understand what your changes affect

Workflow

1. gitnexus_impact({target: "X", direction: "upstream"})  → What depends on this
2. READ gitnexus://repo/{name}/processes                   → Check affected execution flows
3. gitnexus_detect_changes()                               → Map current git changes to affected flows
4. Assess risk and report to user

If "Index is stale" → run npx gitnexus analyze in terminal.

Checklist

- [ ] gitnexus_impact({target, direction: "upstream"}) to find dependents
- [ ] Review d=1 items first (these WILL BREAK)
- [ ] Check high-confidence (>0.8) dependencies
- [ ] READ processes to check affected execution flows
- [ ] gitnexus_detect_changes() for pre-commit check
- [ ] Assess risk level and report to user

Understanding Output

Depth	Risk Level	Meaning
d=1	WILL BREAK	Direct callers/importers
d=2	LIKELY AFFECTED	Indirect dependencies
d=3	MAY NEED TESTING	Transitive effects

Risk Assessment

Affected	Risk
<5 symbols, few processes	LOW
5-15 symbols, 2-5 processes	MEDIUM
>15 symbols or many processes	HIGH
Critical path (auth, payments)	CRITICAL

Tools

gitnexus_impact — the primary tool for symbol blast radius:

gitnexus_impact({
  target: "validateUser",
  direction: "upstream",
  minConfidence: 0.8,
  maxDepth: 3
})

→ d=1 (WILL BREAK):
  - loginHandler (src/auth/login.ts:42) [CALLS, 100%]
  - apiMiddleware (src/api/middleware.ts:15) [CALLS, 100%]

→ d=2 (LIKELY AFFECTED):
  - authRouter (src/routes/auth.ts:22) [CALLS, 95%]

gitnexus_detect_changes — git-diff based impact analysis:

gitnexus_detect_changes({scope: "staged"})

→ Changed: 5 symbols in 3 files
→ Affected: LoginFlow, TokenRefresh, APIMiddlewarePipeline
→ Risk: MEDIUM

Example: "What breaks if I change validateUser?"

1. gitnexus_impact({target: "validateUser", direction: "upstream"})
   → d=1: loginHandler, apiMiddleware (WILL BREAK)
   → d=2: authRouter, sessionManager (LIKELY AFFECTED)

2. READ gitnexus://repo/my-app/processes
   → LoginFlow and TokenRefresh touch validateUser

3. Risk: 2 direct callers, 2 processes = MEDIUM