How do I install the Verification Loop skill?

Run npx skillmds@latest add majiayu000/verification-loop-5 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Verification Loop safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Verification Loop?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Verification Loop free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Verification Loop?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Verification Loop by majiayu000 — Agent Skill

Name: Verification Loop
Rating: 4.2 (5 reviews)
Author: majiayu000

File contents

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

Phase 1: Build Verification

# Check if project builds
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

# 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

# JavaScript/TypeScript
npm run lint 2>&1 | head -30

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

Phase 4: Test Suite

# Run tests with coverage
npm run test -- --coverage 2>&1 | tail -50

# Check coverage threshold
# Target: 80% minimum

Report:

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

Phase 5: Security Scan

# 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 console.log
grep -rn "console.log" --include="*.ts" --include="*.tsx" src/ 2>/dev/null | head -10

Phase 6: Diff Review

# Show what changed
git diff --stat
git diff HEAD~1 --name-only

Review each changed file for:

Unintended changes
Missing error handling
Potential edge cases

Output Format

After running all phases, produce a verification report:

VERIFICATION REPORT
==================

Build:     [PASS/FAIL]
Types:     [PASS/FAIL] (X errors)
Lint:      [PASS/FAIL] (X warnings)
Tests:     [PASS/FAIL] (X/Y passed, Z% coverage)
Security:  [PASS/FAIL] (X issues)
Diff:      [X files changed]

Overall:   [READY/NOT READY] for PR

Issues to Fix:
1. ...
2. ...

Continuous Mode

For long sessions, run verification every 15 minutes or after major changes:

Set a mental checkpoint:
- After completing each function
- After finishing a component
- Before moving to next task

Run: /verify

Integration with Hooks

This skill complements PostToolUse hooks but provides deeper verification. Hooks catch issues immediately; this skill provides comprehensive review.

---name: verification-loop-5description: Comprehensive verification system covering build, types, lint, tests, security, and diff review before a PR.--- # 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 ### Phase 1: Build Verification ```bash # Check if project builds 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 # Run tests with coverage npm run test -- --coverage 2>&1 | tail -50 # Check coverage threshold # Target: 80% minimum ``` Report: - Total tests: X - Passed: X - Failed: X - Coverage: X% ### Phase 5: Security Scan ```bash # 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 console.log grep -rn "console.log" --include="*.ts" --include="*.tsx" src/ 2>/dev/null | head -10 ``` ### Phase 6: Diff Review ```bash # Show what changed git diff --stat git diff HEAD~1 --name-only ``` Review each changed file for: - Unintended changes - Missing error handling - Potential edge cases ## Output Format After running all phases, produce a verification report: ``` VERIFICATION REPORT ================== Build: [PASS/FAIL] Types: [PASS/FAIL] (X errors) Lint: [PASS/FAIL] (X warnings) Tests: [PASS/FAIL] (X/Y passed, Z% coverage) Security: [PASS/FAIL] (X issues) Diff: [X files changed] Overall: [READY/NOT READY] for PR Issues to Fix: 1. ... 2. ... ``` ## Continuous Mode For long sessions, run verification every 15 minutes or after major changes: ```markdown Set a mental checkpoint: - After completing each function - After finishing a component - Before moving to next task Run: /verify ``` ## Integration with Hooks This skill complements PostToolUse hooks but provides deeper verification. Hooks catch issues immediately; this skill provides comprehensive review.

Frequently asked questions

Verification Loop