Ctxlint MCP Server

Lint your AI agent context files, MCP server configs, and session data against your actual codebase. Context linting + MCP config linting + session auditing. 16 AI tools, 8 MCP clients, cross-project consistency, auto-fix. Works as a CLI, CI step, pre-commit hook, or MCP server. It runs locally over stdio via the published package.

People who work with agents md, ai coding and context engineering and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-15 · ★ 10 · #9 OF 168 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-09-18

MIT · TypeScript servers · how we verify → /methodology

01 · Install Ctxlint

Claude Code

claude mcp add yawlabs-ctxlint -- npx -y @yawlabs/ctxlint

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "yawlabs-ctxlint": {
      "command": "npx",
      "args": [
        "-y",
        "@yawlabs/ctxlint"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package @yawlabs/ctxlint - published under the repo owner's npm scope (@yawlabs)

registry namespace io.github.YawLabs is GitHub-verified and matches the repo owner

03 · What Ctxlint can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.27.2 · 2026-09-15

Security · The MCP SDK devDependency moves from ^1.29.0 to ^1.30.0, and pnpm audit goes from 28 findings (10 high, 17 moderate, 1 low) to 0. Every finding was development-scope, and all but the direct vitest…

v0.27.1 · 2026-09-14

Changed · npm and MCP Registry listing metadata: bugs URL, core keywords, and server.json title/repository/websiteUrl · release.sh writes a ## [x.y.z] entry for every release, and the GitHub release notes come from it.…

v0.27.0 · 2026-09-14

Fixed · Glob-scoped .ctxlintignore rules show up in the "Ignore rules" report when they drop nothing. A rule with a file glob (tokens sub/.md) counted as fired as soon as its glob matched any file, whether or not it…

04 · Who maintains Ctxlint

ctxlint is maintained by yawlabs. We track 12 MCP servers from yawlabs - 12 actively maintained, 77 combined GitHub stars, oldest repo from Apr 2026. Full record: all servers from yawlabs.

05 · Facts

repository: github.com/yawlabs/ctxlint
website: https://yaw.sh/mcp-servers/ctxlint/
category: developer tools - ranked #9 of 168 actively-maintained developer tools servers as of 2026-09-18.
release cadence: 10+ releases in the last 90 days (latest 2026-09-15)
registry: io.github.YawLabs/ctxlint (active, first published 2026-05-15 · 40 versions)
packages: npm:@yawlabs/ctxlint

06 · Ctxlint FAQ

What is Ctxlint?

Is Ctxlint still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-15 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Ctxlint?

Run `npx -y @yawlabs/ctxlint`. You can also paste the ready-made client config above.

Does Ctxlint run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Ctxlint

Alternatives to Ctxlint

Maintained developer tools servers if Ctxlint isn't the fit.

Pairs well with

Servers that cover what Ctxlint doesn't - only shown when the pairing reason fits the companion.

More developer tools MCP servers · Mojulo · Sparda · Abcop · Agentic HIL · Axint

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