# Verification Loop

Should be used when the user asks to "verify code", "run verification", "check...

- Repository: https://github.com/Galaxy-Dawn/claude-scholar (5959 stars)
- Category: Testing
- License: MIT
- Last updated: 2026-10-19
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add Galaxy-Dawn/claude-scholar --skill verification-loop -g -a claude-code -y`
Codex: `npx skills add Galaxy-Dawn/claude-scholar --skill verification-loop -g -a codex -y`
Cursor: `npx skills add Galaxy-Dawn/claude-scholar --skill verification-loop -g -a cursor -y`
Gemini CLI: `npx skills add Galaxy-Dawn/claude-scholar --skill verification-loop -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add Galaxy-Dawn/claude-scholar`

## Description

This skill should be used when the user asks to "verify code", "run verification", "check quality", "validate changes", or before creating a PR. Provides comprehensive verification including build, type check, lint, tests, security scan, and diff review.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Verification Loop Skill

A comprehensive verification system for Claude Code sessions.

## When to Use

Invoke this skill:
- After completing a feature or significant code change
- Before creating a PR
- When you want to ensure quality gates pass
- After refactoring

## Verification Phases

Choose the commands adaptively for the current project instead of running every example blindly. Use the stack-appropriate command from `references/STACK-DETECTION.md` when the repo does not match the default examples below.


### Phase 1: Build Verification
```bash
# Python projects (uv)
uv build 2>&1 | tail -20
# OR
python -m build 2>&1 | tail -20

# Node.js projects
npm run build 2>&1 | tail -20
# OR
pnpm build 2>&1 | tail -20
```

If build fails, STOP and fix before continuing.

### Phase 2: Type Check
```bash
# TypeScript projects
npx tsc --noEmit 2>&1 | head -30

# Python projects
pyright . 2>&1 | head -30
```

Report all type errors. Fix critical ones before continuing.

### Phase 3: Lint Check
```bash
# JavaScript/TypeScript
npm run lint 2>&1 | head -30

# Python
ruff check . 2>&1 | head -30
```

### Phase 4: Test Suite
```bash
# Python projects
pytest --cov=src --cov-report=term-missing 2>&1 | tail -50

# Node.js projects
npm run test -- --coverage 2>&1 | tail -50
```

Report:
- Total tests: X
- Passed: X
- Failed: X
- Coverage: X%

### Phase 5: Security Scan
```bash
# Python: Check for secrets
grep -rn "sk-" --include="*.py" . 2>/dev/null | head -10
grep -rn "api_key" --include="*.py" . 2>/dev/null | head -10
pip-audit

# Node.js: Check for secrets
grep -rn "sk-" --include="*.ts" --include="*.js" . 2>/dev/null | head -10
grep -rn "api_key" --include="*.ts" --include="*.js" . 2>/dev/null | head -10

# Check for debug statements
grep -rn "print(" --include="*.py" src/ 2>/dev/null | head -10
grep -rn "console.log" --include="*.ts" --include="*.tsx" src/ 2>/dev/null | head -10
```

The rest: https://github.com/Galaxy-Dawn/claude-scholar/blob/HEAD/skills/verification-loop/SKILL.md