# Closed Loop

Run one task through the V-model verification loop: CP-2 plan → CP-3 build → CP-3v...

- Repository: https://github.com/huytieu/COG-second-brain (1331 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-10-23
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add huytieu/COG-second-brain --skill closed-loop -g -a claude-code -y`
Codex: `npx skills add huytieu/COG-second-brain --skill closed-loop -g -a codex -y`
Cursor: `npx skills add huytieu/COG-second-brain --skill closed-loop -g -a cursor -y`
Gemini CLI: `npx skills add huytieu/COG-second-brain --skill closed-loop -g -a gemini-cli -y`

## Description

Run one task through the V-model verification loop: CP-2 plan → CP-3 build → CP-3v component verify → CP-4 integration verify (full lane) → CP-5 acceptance. The worker never grades its own homework; evidence rows trace back to AC-n. Opt-in: invoke with /closed-loop or by asking for the closed loop, proper verification, or an evidence trail. Ordinary work does not run this.

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

Read `.claude/skills/closed-loop/SKILL.md` and execute it exactly as written, that file is the authoritative
playbook. Then follow `.agents/rules/cog.md`.

Antigravity substitution: where the playbook delegates to a `.claude/agents/<name>`
worker, invoke `.agents/agents/<name>.md` via `invoke_subagent` instead.