Agent skill
skill-create
Analyze git history and codebase patterns to automatically generate SKILL.md files that teach Claude your team's development practices. Creates skills from recurring workflows, naming conventions, and coding patterns.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/skill-create-corbat-tech-coco
SKILL.md
Skill Create — Generate Skills from Codebase Patterns
Analyze the corbat-coco git history and source code to extract recurring patterns and generate reusable skill files.
Analysis Process
Step 1: Git History Analysis
# Recent commit patterns
git log --oneline -50 2>&1
# Most frequently changed files
git log --pretty=format: --name-only -100 | sort | uniq -c | sort -rn | head -20
# Commit message patterns (conventional commits)
git log --pretty=format:"%s" -100 | sed 's/:.*//' | sort | uniq -c | sort -rn
# Co-change patterns (files that change together)
git log --pretty=format: --name-only -50 | awk 'NF>0{print}' | paste - - | sort | uniq -c | sort -rn | head -20
Step 2: Code Pattern Analysis
# Most common import patterns
grep -rh "^import" src/ --include="*.ts" | sort | uniq -c | sort -rn | head -20
# Zod schema patterns
grep -rn "z\.object\|z\.string\|z\.number" src/ --include="*.ts" | wc -l
# Tool registration patterns
grep -rn "registry\.register\|registerAllTools" src/ --include="*.ts"
# Error handling patterns
grep -rn "catch.*error\|instanceof Error" src/ --include="*.ts" | wc -l
Step 3: Test Patterns
# Test file structure
find src/ -name "*.test.ts" | head -20
# Mock patterns used
grep -rn "vi\.mock\|vi\.fn\|vi\.spyOn" src/ --include="*.test.ts" | head -20
# Describe/it structure
grep -rn "^describe\|^ it\(" src/ --include="*.test.ts" | head -30
Skill Templates to Generate
Based on the analysis, generate skills for patterns found. Examples:
Detected: Conventional Commits Pattern
If feat:, fix:, chore: appear consistently → generate commit-convention skill
Detected: Tool Registration Pattern
If tools follow registerXxx(registry) → generate new-tool skill
Detected: Zod Config Pattern
If config schemas follow the same structure → generate add-config-option skill
Detected: Quality Analyzer Pattern
If analyzers in src/quality/analyzers/ follow a pattern → generate new-quality-analyzer skill
Skill Output Format
Generate each skill in .claude/skills/generated/<skill-name>/SKILL.md:
---
name: [detected-pattern-name]
description: [Inferred from pattern frequency and context]
---
# [Pattern Name]
*Auto-generated from git history analysis on [date]*
*Based on [N] occurrences in [N] commits*
## Pattern
[Describe the recurring workflow or convention]
## When to Apply
[Inferred trigger conditions]
## Steps
[Extracted from the most common execution sequence]
## Example from this codebase
\`\`\`typescript
// Actual example from src/...
[real code]
\`\`\`
## Related Files
- [files most commonly involved in this pattern]
Usage Options
/skill-create # analyze full history (last 100 commits)
/skill-create --commits 50 # analyze last 50 commits
/skill-create --focus tools # focus on tool-related patterns
/skill-create --focus tests # focus on testing patterns
/skill-create --focus config # focus on configuration patterns
Output
After analysis, report:
## Skill Create Report
### Patterns Detected
| Pattern | Occurrences | Skill Generated |
|---------|-------------|-----------------|
| tool-registration | 12 | .claude/skills/generated/new-tool/ |
| zod-config-schema | 8 | .claude/skills/generated/add-config/ |
| vitest-mock-pattern | 15 | .claude/skills/generated/vitest-mocks/ |
### Skipped (insufficient data)
- [patterns with <3 occurrences]
### Review Recommended
- .claude/skills/generated/new-tool/SKILL.md
Generated skills are drafts — review and edit before using.
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