Home / huytieu / cog-second-brain · GitHub

update-cog SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

update-cog 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/update-cog@git:20260818.cb4644d

Pins git:20260818.cb4644d 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: .claude/skills/update-cog/SKILL.md
Versions recorded: 3
Latest version: git:20260818.cb4644d, committed Aug 18, 2026
First version recorded: Feb 9, 2026
Size: 3,715 bytes
Repository stars: 1,350
License: MIT

Check for and apply upstream COG framework updates (skills, docs, scripts) without touching personal content.

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

# COG Update Skill

## Purpose
Help the user update their COG framework files (skills, documentation, scripts) from the official upstream repository without risking their personal content (braindumps, profiles, notes).

## When to Invoke
- User asks to "update COG", "check for updates", or "get latest COG version"
- User mentions wanting new skills or features from upstream
- User asks about their COG version

## Process Flow

### 1. Check Current Version
Read `COG-VERSION` from the vault root. If it doesn't exist, inform the user they may be on an older version that predates version tracking.

### 2. Ensure Upstream Remote
```bash
# Add the upstream remote if not already present
git remote get-url cog-upstream 2>/dev/null || \
  git remote add cog-upstream https://github.com/huytieu/COG-second-brain.git

# Fetch latest
git fetch cog-upstream main --quiet
```

### 3. Compare Versions
```bash
# Local version
cat COG-VERSION

# Upstream version
git show cog-upstream/main:COG-VERSION
```

If versions match, tell the user they're up to date.

### 4. Show What Changed
For each framework file, compare local vs upstream:
```bash
git diff HEAD..cog-upstream/main -- <file>
```
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add huytieu/cog-second-brain/update-cog@sha256:cb59b961c7e6b5df

The line at the top of this page pins the label git:20260818.cb4644d, 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_ytkmy6vlouwcu4tj.svg)](https://markdownregistry.com/a/art_ytkmy6vlouwcu4tj)

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

Versions

The registry has recorded 3 versions of this file, between Feb 9, 2026 and Aug 18, 2026, about one every 95 days.

version	committed	commit	size	audit
git:20260818.cb4644d latest	2026-08-18	cb4644d	3,715 B	A	view · diff
git:20260225.584c8bc	2026-02-25	584c8bc	3,522 B	A	view · diff
git:20260209.43e5f49	2026-02-09	43e5f49	3,489 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 (3715 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 · 1,350 stars · license MIT · pushed 2026-10-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ytkmy6vlouwcu4tj
GET https://markdownregistry.com/api/v1/resolve?ref=huytieu/cog-second-brain/update-cog
GET https://markdownregistry.com/api/v1/blob/cb59b961c7e6b5dfe753ed2c38832b5d5877819508a2ee8a9f02563ab0684000

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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