AIコーディングアシスタント用リンター&LSP。CLAUDE.md、SKILL.md等を155以上のルールで検証。Rust製。
Catch broken agent configs before your AI tools silently ignore them.
230 rules across Claude Code, Codex CLI, OpenCode, Cursor, Copilot, and more -
validating CLAUDE.md, SKILL.md, hooks, MCP configs, and other agent files.
Auto-fix | GitHub Action | VS Code + JetBrains + Neovim + Zed
New rules and tool support ship constantly. Follow for real-time updates:
Your skills don't trigger. Vercel's research found skills invoke at 0% without correct syntax. One wrong field and your skill is invisible.
"Almost right" is the worst outcome. 66% of developers cite it as their biggest AI frustration. Misconfigured agents produce exactly this.
Multi-tool stacks fail silently. Cursor + Claude Code + Copilot each want different formats. A config that works in one tool breaks in another.
Bad patterns get amplified. AI assistants don't ignore wrong configs - they learn from them.
agnix validates all of it - 230 rules sourced from official specs, academic research, and real-world breakage patterns. Auto-fix included.
Want to try it first? Open the playground - paste any agent config, see diagnostics instantly. No install, runs in your browser.
$ npx agnix .
Validating: .
CLAUDE.md:15:1 warning: Generic instruction 'Be helpful and accurate' [fixable]
help: Remove generic instructions. Claude already knows this.
.claude/skills/review/SKILL.md:3:1 error: Invalid name 'Review-Code' [fixable]
help: Use lowercase letters and hyphens only (e.g., 'code-review')
Found 1 error, 1 warning
2 issues are automatically fixable
hint: Run with --fix, --fix-safe, or --fix-unsafe to apply fixes
https://github.com/user-attachments/assets/72d5fe7c-476f-46ea-be64-5785cf6d5600
# npm (recommended, all platforms)
npm install -g agnix
# Homebrew (macOS/Linux)
brew tap agent-sh/agnix && brew install agnix
# Cargo
cargo install agnix-cli
Pre-built binaries | All install options
| Editor | Install |
|---|---|
| VS Code | VS Code Marketplace |
| JetBrains | JetBrains Marketplace |
| Neovim | { "agent-sh/agnix.nvim" } |
| Zed | Search "agnix" in Extensions |
- name: Validate agent configs
uses: agent-sh/agnix@v0
with:
target: 'claude-code'
agnix . # Validate current directory
agnix --fix . # Apply HIGH and MEDIUM confidence fixes
agnix --fix-safe . # Apply only HIGH confidence fixes
agnix --fix-unsafe . # Apply all fixes, including LOW confidence
agnix --dry-run --show-fixes . # Preview fixes with inline diff output
agnix --strict . # Strict mode (warnings = errors)
agnix --target claude-code . # Target specific tool
Full CLI reference | All 230 rules
| Tool | Rules | Count | Config Files |
|---|---|---|---|
| Agent Skills | AS-*, CC-SK-* | 31 | SKILL.md |
| Claude Code | CC-* | 53 | CLAUDE.md, hooks, agents, plugins |
| GitHub Copilot | COP-* | 6 | .github/copilot-instructions.md, .github/instructions/*.instructions.md |
| Cursor | CUR-* | 10 | .cursor/rules/*.mdc, .cursorrules |
| MCP | MCP-* | 12 | *.mcp.json |
| AGENTS.md | AGM-*, XP-* | 13 | AGENTS.md, AGENTS.local.md, AGENTS.override.md |
| Gemini CLI | GM-* | 9 | GEMINI.md, GEMINI.local.md, .gemini/settings.json (hooks), gemini-extension.json (extensions), .geminiignore |
Rust workspace crates:
agnix-rules - rule metadata generated from knowledge-base/rules.jsonagnix-core - shared validation engine libraryagnix-cli - command-line interface binaryagnix-lsp - language server binaryagnix-mcp - MCP server binaryagnix-wasm - WebAssembly bindings for browser/runtime integrationsContributions welcome. See CONTRIBUTING.md for the development guide.
Report a bug | Request a rule | Good first issues
MIT OR Apache-2.0
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