agnix

by agent-sh · Developer Tools · ★ 457

agnix is an MCP server by agent-sh. The missing linter and lsp for AI coding assistants. Validate CLAUDE.md, AGENTS.md, SKILL.md, hooks, MCP. Plugin for all major IDEs included, with autofixes. It has 457 GitHub stars and ranks #225 of 2217 in Developer Tools by stars.

Category: Developer Tools
Author: agent-sh
GitHub stars: 457
This week: Tracking since 18 Oct 2026
Weekly downloads: 13,689
Language: Rust
License: Apache-2.0 (open source)
Last update: 2026-10-24 (today)
Links: Source npm

agent
ai
ai-agents
ai-coding-assistant
claude
cli
code-quality
codex
copilot
cursor
devtools
linter
+8 more

How to install agnix

agnix is published on npm as agnix. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.
Add it to Claude Code from a terminal:
```
claude mcp add agnix -- npx -y agnix
```

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "agnix": {
      "command": "npx",
      "args": [
        "-y",
        "agnix"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm agnix and its tools are listed. The install guide covers VS Code and Codex.

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Frequently asked questions

What is agnix?

agnix is an MCP server by agent-sh in the Developer Tools category. The missing linter and lsp for AI coding assistants. Validate CLAUDE.md, AGENTS.md, SKILL.md, hooks, MCP. Plugin for all major IDEs included, with autofixes. It has 457 GitHub stars and ranks #225 of 2217 in Developer Tools by stars.

Is agnix free and open source?

Yes. agnix is published under the Apache-2.0 license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

What are the alternatives to agnix?

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.