agent-red-team SKILL.md skillB
agent-red-team from stijnman/grok-custom-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add stijnman/grok-custom-skills/agent-red-team@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- stijnman/grok-custom-skills
- Path
.grok/skills/agent-red-team/SKILL.md- Versions recorded
- 3
- Latest version
- v1.0.0, committed Aug 19, 2026
- First version recorded
- Aug 19, 2026
- Size
- 7,613 bytes
- Repository stars
- 13
- License
- MIT
Defensive adversarial testing for AI agents, tools, MCP servers, and skills. Finds prompt-injection, jailbreak leakage, tool-abuse, confused-deputy, and data-exfil paths — then reports severity and remediations. Never writes exploit PoCs or attacks third-party systems. Use for: red team, red-teaming, agent red team, adversarial test, prompt injection test, jailbreak test, MCP abuse test, /agent-red-team.
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
# Agent Red Team (Defensive) Authorized **defensive** red-teaming for AI agents you own or are explicitly allowed to test. Goal: surface failure modes before attackers do — then harden. ## When to Use - User says **red team**, **red-teaming**, **agent red team**, or **/agent-red-team** - User asks for **adversarial test**, **prompt injection test**, **jailbreak test** - User wants **MCP / tool abuse** review or **skill safety** adversarial pass - Before publishing a skill, enabling a new MCP server, or shipping an agent feature ## Hard boundaries (non-negotiable) | Allowed | Forbidden | |---------|-----------| | Test systems the user owns / has written authorization for | Attacking third-party production without authorization | | Catalog attack *classes* and example *probe strings* for own apps | Writing exploit PoCs, malware, ransomware, or weaponized payloads | | Read-only config/code review + simulated reasoning | Live exploitation of remote endpoints | | Report severity + remediation | Credential theft, doxxing, or silent exfiltration | | Recommend `hitl-approver` / policy gates | Bypassing user safety for “demo” attacks | …
Read the whole file at its exact version.
How to install
mdr add stijnman/grok-custom-skills/agent-red-team@sha256:ce9bde8aa80c4358The line at the top of this page pins the label v1.0.0, 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_muyfmijfrxy3co74)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, all committed on Aug 19, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-08-19 | f1878af | 7,613 B | B | view · diff |
| v1.0.0 | 2026-08-19 | 20b9bf2 | 7,615 B | B | view · diff |
| v1.0.0 | 2026-08-19 | e39db67 | 7,641 B | B | view |
Audit of the latest version
- fail: No prompt-injection phrasing (matched: Ignore previous instructions)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7613 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
stijnman/grok-custom-skills · 13 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_muyfmijfrxy3co74 GET https://markdownregistry.com/api/v1/resolve?ref=stijnman/grok-custom-skills/agent-red-team GET https://markdownregistry.com/api/v1/blob/ce9bde8aa80c435825b9b3b6c217754e471b35f6cb8e9f33d029804b1d92570c
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.