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Agent skill

Verification Loop

by affaan-m in affaan-m/ECC

Sistema de verificación completo para sesiones de Claude Code.

MITAuto-check passed

Install Verification Loop

skills CLI
$ npx skills add affaan-m/ECC --skill verification-loop -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install affaan-m/ECC verification-loop --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/es/skills/verification-loop .claude/skills/verification-loop && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
verification-loop
GitHub stars
275k
Token cost
~705 tokens
SKILL.md length
187 words
Files
1
Skills in repo
645
Repo updated
First seen
Licence
MIT

At a glance

Sistema de verificación completo para sesiones de Claude Code.

  • SKILL.md covers Cuándo Usar, Fases de Verificación, Formato de Salida and Modo Continuo, plus 1 more section
  • Calls npm, git and pnpm

What it does

Verification Loop is an agent skill from affaan-m/ECC. Sistema de verificación completo para sesiones de Claude Code.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.

Example prompts

  • “/verification-loop”

Requirements

  • Python 3
  • Node.js

What it can do on your machine

Read from SKILL.md and the folder at commit ef648e0. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npm
    • git
    • pnpm
    • npx
    • ruff

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npm, git, pnpm and npx, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Verification Loop loads about 705 tokens when it runs. Until then it costs about 20 tokens; SKILL.md has 187 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~20
When it runs · the whole SKILL.md, loaded when a task matches
~705

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from affaan-m/ECC at commit ef648e0, republished under its MIT licence (© affaan-m). 187 words, ~705 tokens.

Download SKILL.mdSave it as .claude/skills/verification-loop/SKILL.md (or your agent's skills folder).
name
verification-loop
description
Sistema de verificación completo para sesiones de Claude Code.
origin
ECC

Skill de Bucle de Verificación

Sistema de verificación completo para sesiones de Claude Code.

Cuándo Usar

Invocar este skill:

  • Después de completar una funcionalidad o cambio de código significativo
  • Antes de crear un PR
  • Cuando se quiere garantizar que las compuertas de calidad pasen
  • Después de refactorizar

Fases de Verificación

Fase 1: Verificación del Build
bash
# Verificar si el proyecto compila
npm run build 2>&1 | tail -20
# O
pnpm build 2>&1 | tail -20

Si el build falla, DETENER y corregir antes de continuar.

Fase 2: Verificación de Tipos
bash
# Proyectos TypeScript
npx tsc --noEmit 2>&1 | head -30

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

Reportar todos los errores de tipo. Corregir los críticos antes de continuar.

Fase 3: Verificación de Lint
bash
# JavaScript/TypeScript
npm run lint 2>&1 | head -30

# Python
ruff check . 2>&1 | head -30
Fase 4: Suite de Pruebas
bash
# Ejecutar pruebas con cobertura
npm run test -- --coverage 2>&1 | tail -50

# Verificar umbral de cobertura
# Objetivo: mínimo 80%

Reportar:

  • Total de pruebas: X
  • Pasadas: X
  • Fallidas: X
  • Cobertura: X%
Fase 5: Escaneo de Seguridad
bash
# Verificar secretos
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

# Verificar console.log
grep -rn "console.log" --include="*.ts" --include="*.tsx" src/ 2>/dev/null | head -10
Fase 6: Revisión de Diff
bash
# Mostrar qué cambió
git diff --stat
git diff HEAD~1 --name-only

Revisar cada archivo modificado en busca de:

  • Cambios no intencionados
  • Manejo de errores faltante
  • Casos borde potenciales

Formato de Salida

Después de ejecutar todas las fases, producir un reporte de verificación:

REPORTE DE VERIFICACIÓN
=======================

Build:      [PASS/FAIL]
Tipos:      [PASS/FAIL] (X errores)
Lint:       [PASS/FAIL] (X advertencias)
Pruebas:    [PASS/FAIL] (X/Y pasadas, Z% cobertura)
Seguridad:  [PASS/FAIL] (X problemas)
Diff:       [X archivos modificados]

General:    [LISTO/NO LISTO] para PR

Problemas a Corregir:
1. ...
2. ...

Modo Continuo

Para sesiones largas, ejecutar la verificación cada 15 minutos o después de cambios importantes:

markdown
Establecer un checkpoint mental:
- Después de completar cada función
- Después de terminar un componente
- Antes de pasar a la siguiente tarea

Ejecutar: /verify

Integración con Hooks

Este skill complementa los hooks PostToolUse pero proporciona una verificación más profunda. Los hooks detectan problemas de inmediato; este skill proporciona una revisión completa.

© affaan-m, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in docs/es/skills/verification-loop of affaan-m/ECC.

Open the folder on GitHubat commit ef648e0

Compare with similar skills

Verification Loop next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Verification Loop compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Verification Loop this skillaffaan-m/ECC275k—~705Automated safety check: PassMIT
Para Memory Filespaperclipai/paperclip99k1 repos~909Automated safety check: PassMIT
Sistema Vivomelgarafael/DeskcommCRM4.5k—~2.3kAutomated safety check: PassMIT
Para Skillaiskillstore/marketplace430—~2kAutomated safety check: PassMIT
Para Second Brainsundial-org/awesome-openclaw-skills6631 repos~3.2kAutomated safety check: PassNone
Para Memory FilesUndertone0809/rudder292—~2.6kAutomated safety check: PassApache-2.0

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Questions about Verification Loop

What does Verification Loop do?

Sistema de verificación completo para sesiones de Claude Code. Verification Loop is an agent skill from affaan-m/ECC. Sistema de verificación completo para sesiones de Claude Code.

How do I install Verification Loop in Claude Code?

Run `npx skills add affaan-m/ECC --skill verification-loop -a claude-code`. Or copy the skill folder (docs/es/skills/verification-loop in affaan-m/ECC) into .claude/skills/verification-loop in your project. Claude Code loads it when a task matches its description.

How do I install Verification Loop in Codex?

Run `npx skills add affaan-m/ECC --skill verification-loop -a codex`. Or copy the skill folder (docs/es/skills/verification-loop in affaan-m/ECC) into .agents/skills/verification-loop in your project. Codex loads it when a task matches its description.

Can I use Verification Loop in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add affaan-m/ECC --skill verification-loop -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/verification-loop, .gemini/skills/verification-loop, .github/skills/verification-loop and .opencode/skills/verification-loop in your project.

What does Verification Loop need to run?

Going by SKILL.md and its folder, Verification Loop needs the command-line tools its instructions call (npm, git, pnpm, npx and ruff). Our summary lists: Python 3; Node.js.

Does Verification Loop access the network?

SKILL.md contains no URLs. Its commands use npm, git and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Verification Loop safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Verification Loop use?

Verification Loop is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Verification Loop use?

About 705 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Verification Loop?

Skills that share tags, products or a category with Verification Loop: Para Memory Files (paperclipai/paperclip, 99k stars), Sistema Vivo (melgarafael/DeskcommCRM, 4.5k stars), Para Skill (aiskillstore/marketplace, 430 stars) and Para Second Brain (sundial-org/awesome-openclaw-skills, 663 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Verification Loop?

affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 275,023 GitHub stars. The repository holds 645 skills in this directory. The repository was last updated on October 5, 2026.

Source: affaan-m/ECC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.