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closed-loop SKILL.md skillA

closed-loop from huytieu/cog-second-brain is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add huytieu/cog-second-brain/closed-loop@git:20260825.623ed00

Pins git:20260825.623ed00 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: huytieu/cog-second-brain
Path: .agents/skills/closed-loop/SKILL.md
Versions recorded: 2
Latest version: git:20260825.623ed00, committed Aug 25, 2026
First version recorded: Jul 30, 2026
Size: 740 bytes
Repository stars: 1,305
License: MIT

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.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

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.

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add huytieu/cog-second-brain/closed-loop@sha256:534b929cd23ce76f

The line at the top of this page pins the label git:20260825.623ed00, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_qbzxz6o6kekojzwm.svg)](https://markdownregistry.com/a/art_qbzxz6o6kekojzwm)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jul 30, 2026 and Aug 25, 2026, about one every 27 days.

version	committed	commit	size	audit
git:20260825.623ed00 latest	2026-08-25	623ed00	740 B	A	view · diff
git:20260730.acf9b42	2026-07-30	acf9b42	571 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (740 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

huytieu/cog-second-brain · 1,305 stars · license MIT · pushed 2026-10-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qbzxz6o6kekojzwm
GET https://markdownregistry.com/api/v1/resolve?ref=huytieu/cog-second-brain/closed-loop
GET https://markdownregistry.com/api/v1/blob/534b929cd23ce76f2e0c8efdc070dbfce1dc47dc9065f250c9a86ef3c5e9037d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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