ci-agent-hardening SKILL.md skillA
ci-agent-hardening from stacklok/toolhive-catalog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add stacklok/toolhive-catalog/ci-agent-hardening@v0.1.0Pins v0.1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- stacklok/toolhive-catalog
- Path
registries/toolhive/skills/ci-agent-hardening/skill/SKILL.md- Versions recorded
- 1
- Latest version
- v0.1.0, committed Apr 15, 2026
- Size
- 7,387 bytes
- Repository stars
- 23
- License
- Apache-2.0
Audit and harden GitHub Actions workflows against prompt injection, pull_request_target exploits (Pwn Requests), expression injection, cache poisoning, credential theft, and supply chain attacks. Based on Clinejection and hackerbot-claw campaigns. Use when reviewing CI/CD security, securing AI agent workflows, hardening publishing pipelines, or checking for GitHub Actions misconfigurations. Also covers slash command authorization, CLAUDE.md protection, and network egress. NOT for general CI/CD…
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
# CI Agent Hardening Audit and fix security vulnerabilities in GitHub Actions workflows, with emphasis on AI-powered CI/CD. Based on two major 2026 incidents: - **Clinejection** — Prompt injection in AI triage bot led to cache poisoning, credential theft, malicious npm publish (~4,000 developers affected) - **hackerbot-claw** — Autonomous AI bot exploited 7 repos (Microsoft, DataDog, CNCF, Aqua Trivy), achieving full repo compromise on Trivy (25k+ stars) via PAT theft ## Prerequisites - Repository with `.github/workflows/` directory - `bash` available for running the audit script ## Instructions For background and exploit details on any pattern below, see [references/ATTACK-PATTERNS.md](references/ATTACK-PATTERNS.md). ### Step 1: Run the Automated Audit Run from the repository root: ```bash bash <skill-path>/scripts/audit-workflows.sh .github/workflows ``` Review `[CRIT]` findings first (exploitable now), then `[WARN]` (defense gaps). ### Step 2: Fix `pull_request_target` + Fork Checkout (CRITICAL) This is the #1 attack vector. 4 of 7 hackerbot-claw attacks exploited it. Check every `pull_request_target` workflow: ```yaml # DANGEROUS — runs fork code with your secrets …
Read the whole file at its exact version.
How to install
mdr add stacklok/toolhive-catalog/ci-agent-hardening@sha256:e9dd71e254f1bebaThe line at the top of this page pins the label v0.1.0, 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.
[](https://markdownregistry.com/a/art_3awwvgllx4y2ka2j)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Apr 15, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7387 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
stacklok/toolhive-catalog · 23 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3awwvgllx4y2ka2j GET https://markdownregistry.com/api/v1/resolve?ref=stacklok/toolhive-catalog/ci-agent-hardening GET https://markdownregistry.com/api/v1/blob/e9dd71e254f1beba051d666af65ab6d1da2152a379e756a434b1b789b2ae0717
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.