MCP servers for Codex

414,891 that install into Codex. Same mod, same page, whichever agent you run: a URL per tool would split one page into five that compete.

angular/angular

Skill Claude CodeCodex ✓ vendor

Explains the mental model and architecture of the code under packages/forms/signals. You MUST use this skill any time you plan to work with code in packages/forms/signals.

101k 4d ago A 43 tokens original MIT

angular AGENTS.md

146

angular/angular

Instructions file CodexOpenCode ✓ vendor

Instructions for angular/angular, covering environment, key documentation, testing and pull requests.

101k 4d ago A 366 tokens original MIT

pi AGENTS.md

147

earendil-works/pi

Instructions file CodexOpenCode

AGENTS.md instructions for earendil-works/pi, covering development rules, conversational style, code quality, commands and dependency and install security.

100k +1.2k yesterday A 2,804 tokens original MIT

multiline-description

150

earendil-works/pi

Skill Claude CodeCodex

This is a multiline description. It spans multiple lines. And should be normalized.

100k +1.2k yesterday A 20 tokens original MIT

material-ui-review

151

mui/material-ui

Skill Claude CodeCodex

Review the current diff for regressions, correctness bugs, tests, simplifications, and docs issues, scaling depth to a low/medium/high/xhigh/max effort level. Use ONLY when explicitly requested by name: the user runs /material-ui-review, writes $material-ui-review, or asks for "the Material UI review skill". Do NOT…

99k 2d ago A 137 tokens original MIT

material-ui AGENTS.md

152

mui/material-ui

Instructions file CodexOpenCode

AGENTS.md instructions for mui/material-ui, covering agents.md, package manager, common commands, development and building.

99k 2d ago A 2,169 tokens original MIT

material-ui-nextjs

153

mui/material-ui

Skill Claude CodeCodex

Integrates Material UI with Next.js App and Pages routers using @mui/material-nextjs, Emotion cache providers, next/font, CSS layers with Tailwind/CSS Modules, Link component prop patterns, CSS theme variables SSR notes, and App Router useSearchParams + Suspense. Use when setting up or debugging MUI in a Next.js app.

99k 2d ago A 76 tokens original MIT

material-ui-styling

154

mui/material-ui

Skill Claude CodeCodex

Chooses the right Material UI styling approach (sx, styled, theme overrides, global CSS) from official MUI guidance. Use when styling @mui/material components, customizing themes, overriding slots, or comparing sx vs styled.

99k 2d ago A 52 tokens original MIT

oven-sh/bun

Skill Claude CodeCodex

Implements JavaScript classes in C++ using JavaScriptCore. Use when creating new JS classes with C++ bindings, prototypes, or constructors.

96k +21 yesterday A 38 tokens

oven-sh/bun

Skill Claude CodeCodex

Creates JavaScript classes using Bun's Rust bindings generator (.classes.ts). Use when implementing new JS APIs in Rust with JSC integration, prototypes, or constructors.

96k +21 yesterday A 41 tokens

oven-sh/bun

Skill Claude CodeCodex

JSC GC reference for Bun. Use for use-after-free, JS object leaks, "collected too early", or when touching WriteBarrier, visitChildren, visitAdditionalChildren, JSRef, JSC::Strong/Weak, hasPendingActivity, ensureStillAlive, addOpaqueRoot, reportExtraMemoryAllocated, IsoSubspace, HeapAnalyzer, finalize.

96k +21 yesterday A 80 tokens

bun AGENTS.md

158

oven-sh/bun

Instructions file CodexOpenCode

AGENTS.md instructions for oven-sh/bun, a project described as: Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one.

96k +21 yesterday A 4 tokens

microsoft/playwright

Skill Claude CodeCodex ✓ vendor

Query Playwright CI test results from the aggregated DuckDB database. Answers questions about flaky tests, failure rates, slow tests, and per-run/SHA/PR results without hunting through GitHub artifacts.

95k +115 today A 45 tokens original Apache-2.0

playwright-test

160

microsoft/playwright

MCP server Claude CodeCodexCursor +2 ✓ vendor

A high-level API to automate web browsers. Runs locally from the playwright npm package.

95k +115 today A tokens not measured original Apache-2.0

playwright-cli

161

microsoft/playwright

Skill Claude CodeCodex ✓ vendor

Automate browser interactions, test web pages and work with Playwright tests.

95k +115 today A 19 tokens original Apache-2.0

microsoft/playwright

Skill Claude CodeCodex ✓ vendor

Set up component testing with Playwright using a story gallery — scaffold stories and a gallery dev page driven by the built-in mount fixture, no dedicated component-testing runtime. Use when asked to test React or Vue components in isolation with Playwright, or to migrate off @playwright/experimental-ct-react / -vue.

95k +115 today A 69 tokens original Apache-2.0

od-contribute

163

nexu-io/open-design

Skill Claude CodeCodex

One-click contribution flow for OpenDesign (nexu-io/open-design) — even for non-coders. Pick one of four cards (ship a Skill or Design System you made with OD; translate docs; fix a typo / write a blog; report a bug), the agent validates and opens a PR (or issue) for you. Trigger words contribute to open design, ship…

93k +578 yesterday A 104 tokens original Apache-2.0

open-design AGENTS.md

164

nexu-io/open-design

Instructions file CodexOpenCode

AGENTS.md instructions for nexu-io/open-design, covering directory guide, core documentation index, workspace directories, inactive or placeholder directories and development workflow.

93k +578 changed today A 10,311 tokens original Apache-2.0

clinical-case-report

165

nexu-io/open-design

Skill Claude CodeCodex

Structured medical case presentation for clinical rounds, conferences, and documentation. Generates SOAP-format or narrative case reports with physiologically accurate vitals, labs, and evidence-based plans. Use when the brief mentions "case report", "case presentation", "SOAP note", "clinical case", "ward rounds"…

93k +578 yesterday A 73 tokens original Apache-2.0

magazine-web-ppt

166

nexu-io/open-design

Skill Claude CodeCodex

For marketing and gtm work: bind launches, campaigns, events, and brand plans to growth and pipeline outcomes. Built around the core query "annual-marketing-plan", with GTM strategy lead judgment, buyer-ready proof, and this outcome: approve launch plan, campaign budget, or GTM motion.

93k +578 yesterday A 67 tokens original Apache-2.0

mcp-search

167

thedotmack/claude-mem

MCP server Claude CodeCodexCursor +2

MCP server "mcp-search" as configured in thedotmack/claude-mem. Runs const f=require('fs'),p=require('path'),o=require('os'),c=require('child_process');const h=o.homedir();const C=process.env.CLAUDE_CONFIG_DIR||p.join(h,'.claude');const E=process.env.CLAUDE_PLUGIN_ROOT||process.env.PLUGIN_ROOT||'';const…

93k +272 yesterday A tokens not measured original Apache-2.0

design-is

168

thedotmack/claude-mem

Skill Claude CodeCodex

Audit a design against Dieter Rams' ten "Good design is..." principles, then hand off a /make-plan prompt for one of three outcomes — new design, refine design, or redesign. Use when the user says "audit this design", "design review", "check this UI against Rams", "is this UI good", "critique this design", "design…

93k +272 yesterday A 91 tokens original Apache-2.0

At most 3 mods per repository are shown here — the rest are on their repository pages: