ccc-harden SKILL.md skillA

ccc-harden 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-harden@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-harden/SKILL.md
Versions recorded: 4
Latest version: git:20261013.fbe187d, committed Oct 13, 2026
First version recorded: May 28, 2026
Size: 7,829 bytes
Repository stars: 6
License: MIT

Pre-launch production hardening audit across hosting, GitHub, error tracking, analytics, payments, secrets/PII headers and Cloudflare. Read-only by default; per-pillar fixes only with approval. Findings stay local. Use when preparing a launch or security review, or after config changes.

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-harden — Production hardening audit

**CC Commander** · $ccc-harden · a severity-ranked hardening report for the current site, with manual and auto-fixable actions separated.

The pillar engine is the optional `harden-site` skill (pillar scripts with `--audit`, `--fix`, `--json`). When it is not installed, the skill runs the read-only native checks in [references/pillars.md](references/pillars.md). The user's selected model is preserved.

Codex: ask the pickers as plain-text questions.

## Pillars

| # | Pillar | Verifies |
|---|---|---|
| 1 | Vercel | project link, env vars, response headers, deploy protection, domain |
| 2 | GitHub linkage | remote, branch tracking, `.gitignore` coverage, clean tree |
| 3 | GitHub org | branch protection, Dependabot, secret scanning, CODEOWNERS |
| 4 | Sentry | SDK, DSN, source maps, alert rules, sample rate |
| 5 | PostHog | SDK, env vars, autocapture config, event allowlist |
| 6 | Plausible | script, site id, goals, recent traffic |
| 7 | Clarity | script, project id |
| 8 | Google | GA4, Search Console, sitemap, Tag Manager |
| 9 | Stripe | keys present, webhook configured, test/live separation |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add kevinzai/commander/ccc-harden@sha256:a90549f3862a3585

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_dfaobvd3q7wlz23t.svg)](https://markdownregistry.com/a/art_dfaobvd3q7wlz23t)

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

Versions

The registry has recorded 4 versions of this file, between May 28, 2026 and Oct 13, 2026, about one every 46 days.

version	committed	commit	size	audit
git:20261013.fbe187d latest	2026-10-13	fbe187d	7,829 B	A	view · diff
git:20260722.9d3ab82	2026-07-22	9d3ab82	5,548 B	A	view · diff
git:20260707.947ab2f	2026-07-07	947ab2f	5,416 B	A	view · diff
git:20260528.3964bea	2026-05-28	3964bea	5,247 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 (7829 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_dfaobvd3q7wlz23t
GET https://markdownregistry.com/api/v1/resolve?ref=kevinzai/commander/ccc-harden
GET https://markdownregistry.com/api/v1/blob/a90549f3862a3585f4fc1f43f63b858bd227f18663a578ad07bd3892d4d4df5d

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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