Verification Loop

A comprehensive verification system for Claude Code sessions. Use when verifying a Claude Code session's work before claiming it is complete.

293,665 stars 43,456 forksAI, LLMs & Agents Plugin marketplace

Install

Claude Code plugin
/plugin marketplace add affaan-m/ECC

The repo is a Claude Code plugin marketplace. Run /plugin afterwards to pick the plugin that includes this skill.

skills CLI (Claude Code, Cursor, Codex and more)
npx skills add affaan-m/ECC --skill verification-loop
Manual install
git clone --depth 1 https://github.com/affaan-m/ECC.git /tmp/ECC
mkdir -p ~/.claude/skills
cp -r /tmp/ECC/.agents/skills/verification-loop ~/.claude/skills/verification-loop

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# 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:
Read the full skill on GitHub

Details

Skill name
verification-loop
Repository
affaan-m/ECC
Path
.agents/skills/verification-loop/SKILL.md
License
MIT
Repo updated
30 October 2026

FAQ

What does the Verification Loop skill do?

A comprehensive verification system for Claude Code sessions. Use when verifying a Claude Code session's work before claiming it is complete.

How do I install the Verification Loop skill?

Claude Code plugin: /plugin marketplace add affaan-m/ECC. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Verification Loop popular?

It lives in affaan-m/ECC, which has 293,665 GitHub stars and 43,456 forks, and is included in 1 curated skill list.

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