agnix

Lint agent configurations before they break your workflow. Validates Skills, Hooks, MCP, Memory, Plugins across 10+ AI tools including Claude Code, Cursor, GitHub Copilot, Codex CLI, OpenCode, Gemini CLI, Cline, Windsurf, Kiro, and Amp.

Parse Arguments

const args = '$ARGUMENTS'.split(' ').filter(Boolean);
const targetPath = args.find(a => !a.startsWith('--')) || '.';
const fix = args.includes('--fix');
const strict = args.includes('--strict');
const target = args.find(a => a.startsWith('--target='))?.split('=')[1] || 'claude-code';

When to Use

Invoke when user asks to:

• "Lint my agent configs"
• "Validate my skills"
• "Check my CLAUDE.md"
• "Validate hooks"
• "Lint MCP configs"
• "Fix agent configuration issues"
• "Check if my SKILL.md is correct"

Prerequisites

agnix must be installed. Check with:

agnix --version

If not installed:

cargo install agnix-cli

Execution

1. Validate Project

agnix .

2. If Issues Found and Fix Requested

agnix --fix .

3. Re-validate to Confirm

agnix .

CLI Reference

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 - re-validate on changes
agnix --format json .	JSON output
agnix --format sarif .	SARIF for GitHub Code Scanning

Supported Files

File Type	Examples
Skills	SKILL.md
Memory	CLAUDE.md, AGENTS.md
Hooks	${STATE_DIR}/settings.json
MCP	*.mcp.json
Cursor	.cursor/rules/*.mdc
Copilot	.github/copilot-instructions.md

Output Format

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)

Exit codes:

• 0 - No errors (warnings allowed)
• 1 - Errors found
• 2 - Invalid arguments

Rule Categories

Prefix	Category	Examples
AS-*	Agent Skills	Name format, triggers, description
CC-*	Claude Code	Hooks, memory, plugins
MCP-*	MCP Protocol	Server config, tool definitions
PE-*	Prompt Engineering	Generic instructions, redundancy
XP-*	Cross-Platform	Compatibility across tools
AGM-*	AGENTS.md	Structure, sections
COP-*	GitHub Copilot	Instructions format
CUR-*	Cursor	MDC format, rules

Common Issues & Fixes

Issue	Solution
Invalid skill name	Use lowercase with hyphens: my-skill
Directory/name mismatch	Rename directory to match name: field
Generic instructions	Remove "be helpful", "be accurate"
Missing trigger phrase	Add "Use when..." to description

Integration

This skill is standalone and can be invoked directly via /agnix.

For CI integration, see the GitHub Action.

Links

• GitHub
• Rules Reference
• Configuration