Use when user asks to 'lint agent configs', 'validate skills', 'check CLAUDE.md', 'validate hooks', 'lint MCP'. Validates agent configuration files against 230 rules.
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See how to installReview the instructions the agent will receive before you install.
Lint agent configurations before they break your workflow. Validates Skills, Hooks, MCP, Memory, Plugins across Claude Code, Cursor, GitHub Copilot, and Codex CLI.
Invoke when user asks to:
| File Type | Examples |
|---|---|
| Skills | SKILL.md |
| Memory | CLAUDE.md, AGENTS.md |
| Hooks | .claude/settings.json |
| MCP | *.mcp.json |
| Cursor | .cursor/rules/*.mdc |
| Copilot | .github/copilot-instructions.md |
agnix --version
If not found, install:
cargo install agnix-cli
agnix .
agnix --fix .
agnix .
| Command | Description |
|---|---|
agnix . | Validate current project |
agnix --fix . | Auto-fix issues |
agnix --strict . | Treat warnings as errors |
agnix --target claude-code . | Only Claude Code rules |
agnix --target cursor . | Only Cursor rules |
agnix --watch . | Watch mode |
agnix --format json . | JSON output |
CLAUDE.md:15:1 warning: Generic instruction 'Be helpful' [fixable]
help: Remove generic instructions. Claude already knows this.
skills/review/SKILL.md:3:1 error: Invalid name [fixable]
help: Use lowercase letters and hyphens only
Found 1 error, 1 warning (2 fixable)
| Issue | Solution |
|---|---|
| Invalid skill name | Use lowercase with hyphens: my-skill |
| Generic instructions | Remove "be helpful", "be accurate" |
| Missing trigger phrase | Add "Use when..." to description |
| Directory/name mismatch | Rename directory to match name: field |
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When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," or "hypothesis." For tracking implementation, see analytics-tracking.
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Audit and improve web accessibility following WCAG 2.2 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or "make accessible".
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Audit and improve web accessibility following WCAG 2.1 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or "make accessible".
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This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
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Head-to-head comparison of coding agents (Claude Code, Aider, Codex, etc.) on custom tasks with pass rate, cost, time, and consistency metrics
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Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates.
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