345 Claude Code skills & agent skills & plugins (30+ Agents, 70+ custom commands, 330+ skills, customizable references, scripts)for Claude Code, Codex, Gemini CLI, Cursor, and 8 more coding agents — engineering, marketing, product, compliance, C-level advisory, research, business operations, commercial & finance, and your daily productivity skills.
Axiom
Axiom is an open-source integrations skill for Claude Code, published by netopsengineer. Its author describes it as: “A curated marketplace of plugins for Claude Code, built from first principles.”. The project has 3 stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add netopsengineer/axiom`.
Installation
Add Axiom to your agent with:
/plugin marketplace add netopsengineer/axiomAlways 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 Axiom when you want integrations 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 MIT 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 Axiom do?
- A curated marketplace of plugins for Claude Code, built from first principles.
- How do I install Axiom?
- Run /plugin marketplace add netopsengineer/axiom in your agent, then reload your skills. Review the source at https://github.com/netopsengineer/axiom before installing.
- Is Axiom free to use?
- Yes. Axiom is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does Axiom work with?
- Axiom declares compatibility with Claude Code. Agent Skills use a portable SKILL.md format, so other compatible clients can usually load it too.
Related skills
More Integrations →One paragraph describing what this agent does, who it's for, and when to activate it.
Adversarial code review that breaks the self-review monoculture. Use when you want a genuinely critical review of recent changes, before merging a PR, or when you suspect Claude is being too agreeable about code quality. Forces perspective shifts through hostile reviewer personas that catch blind spots the author's mental model shares with the reviewer.
Answer Engine Optimization (AEO) skill — optimize content to be cited by AI language models (ChatGPT, Perplexity, Claude, Gemini, Mistral) as authoritative sources. Distinct from SEO — AEO optimizes for citation in LLM-generated responses, not search rankings. Use when planning content for AI-first search audiences, auditing existing content for E-E-A-T signals, tracking which pages get cited by which LLMs, or building a citation-friendly content strategy. Triggers — 'AEO audit', 'optimize for ChatGPT', 'get cited by Perplexity', 'LLM citation strategy', 'answer engine optimization', 'content for AI search', 'E-E-A-T audit'. Output is a markdown audit report (default) or JSON for pipeline integration. Stdlib-only Python tools.
Mint a tamper-evident, post-quantum-signed receipt for a consequential agent action (deploy, delete, pay, grant-access, model decision) so it can be verified later from the certificate alone. Use when an autonomous agent takes a side-effecting action that may need to be proven later, or when satisfying EU AI Act Article 12 record-keeping. Three decisions: whether an action needs a receipt, minting it, verifying it. Signing is delegated to the open-source OpenAgentOntology package. Not after-the-fact log analysis; not a hosted notary; not a legal opinion.