Use when assessing AI/ML systems for prompt injection, jailbreak vulnerabilities, model inversion risk, data poisoning exposure, or agent tool abuse. Covers MITRE ATLAS technique mapping, injection signature detection, and adversarial robustness scoring.
Grc Library
Grc Library is an open-source security skill for Claude Code, published by jposluns. Its author describes it as: “A documentation library for governance, risk, compliance, cybersecurity, privacy, resilience, AI assurance, and operational control practices + a Claude Code rules-and-skills pack distilled from maintaining it.”. The project has 3 stars on GitHub and is available under the CC-BY-SA-4.0 license. Add it to your setup with `git clone https://github.com/jposluns/grc_library ~/.claude/skills/grc_library`.
Installation
Add Grc Library to your agent with:
git clone https://github.com/jposluns/grc_library ~/.claude/skills/grc_libraryAlways review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.
When to use it
Reach for Grc Library when you want security help from Claude Code without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.
Strengths
- Clear CC-BY-SA-4.0 license — safe to read and adapt
- Declares compatibility with Claude Code
- Actively maintained (recent commits)
Things to check
- Limited adoption so far — evaluate before depending on it
Topics
Frequently asked questions
- What does Grc Library do?
- A documentation library for governance, risk, compliance, cybersecurity, privacy, resilience, AI assurance, and operational control practices + a Claude Code rules-and-skills pack distilled from maintaining it.
- How do I install Grc Library?
- Run git clone https://github.com/jposluns/grc_library ~/.claude/skills/grc_library in your agent, then reload your skills. Review the source at https://github.com/jposluns/grc_library before installing.
- Is Grc Library free to use?
- Yes. Grc Library is free and open source under the CC-BY-SA-4.0 license, so you can read, run, and adapt it within that license's terms.
- Which agents does Grc Library work with?
- Grc Library declares compatibility with Claude Code. Agent Skills use a portable SKILL.md format, so other compatible clients can usually load it too.
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