ccc-learn SKILL.md skillA

ccc-learn from kevinzai/commander is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add kevinzai/commander/ccc-learn@git:20261013.fbe187d

Pins git:20261013.fbe187d in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: kevinzai/commander
Path: commander/cowork-plugin-codex/skills/ccc-learn/SKILL.md
Versions recorded: 5
Latest version: git:20261013.fbe187d, committed Oct 13, 2026
First version recorded: May 14, 2026
Size: 6,592 bytes
Repository stars: 6
License: MIT

Pick a CC Commander skill domain in one click (design, marketing, SaaS, DevOps, SEO, testing, security, data and more) and hand off to that domain's router skill. Use when the user asks what skills exist, wants the skill catalog, says learn or browse domains, or types $ccc-learn.

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

# $ccc-learn — one click to a domain

**CC Commander** · $ccc-learn · a domain picker that loads the matching router skill, which shows its own sub-picker.

## When to use / when not to

- Use when the user wants to discover what Commander can do in an area, or names a domain without a specific task.
- When the intent already maps to one domain ("set up auth"), invoke that router directly (`ccc-saas`) instead of showing the picker.
- Use `$ccc-browse` for the full searchable catalog; this skill never lists every skill.

## What happens

### 1. Check the argument first

If the skill argument names a domain, skip every picker and invoke the router with the Skill tool:

| Argument | Router skill |
|---|---|
| `design` | `ccc-design` |
| `marketing` | `ccc-marketing` |
| `saas` | `ccc-saas` |
| `devops` | `ccc-devops` |
| `seo` | `ccc-seo` |
| `testing` | `ccc-testing` |
| `security` | `ccc-security` |
| `data` | `ccc-data` |
| `research` | `ccc-research` |
| `mobile` | `ccc-mobile` |
| `makeover` | `ccc-makeover` |
| `all` | `ccc-browse` |

An unrecognized argument: say which domains exist (the argument column) and continue to step 2.

### 2. Header and context strip

Print:

```
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add kevinzai/commander/ccc-learn@sha256:46bc00f80a02adf2

The line at the top of this page pins the label git:20261013.fbe187d, 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_e53f6twnfxrorcp4.svg)](https://markdownregistry.com/a/art_e53f6twnfxrorcp4)

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

Versions

The registry has recorded 5 versions of this file, between May 14, 2026 and Oct 13, 2026, about one every 38 days.

version	committed	commit	size	audit
git:20261013.fbe187d latest	2026-10-13	fbe187d	6,592 B	A	view · diff
git:20260722.9d3ab82	2026-07-22	9d3ab82	6,675 B	A	view · diff
git:20260716.930d05a	2026-07-16	930d05a	6,542 B	A	view · diff
git:20260707.947ab2f	2026-07-07	947ab2f	6,543 B	A	view · diff
git:20260514.2648602	2026-05-14	2648602	6,374 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 (6592 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

kevinzai/commander · 6 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_e53f6twnfxrorcp4
GET https://markdownregistry.com/api/v1/resolve?ref=kevinzai/commander/ccc-learn
GET https://markdownregistry.com/api/v1/blob/46bc00f80a02adf22691a45db66de2d8d1bd996b91bbbdf414eb9a9948cd0557

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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