Skills for Codex

331,572 that install into Codex. Same mod, same page, whichever agent you run: a URL per tool would split one page into five that compete.

widget-generator

49

f/prompts.chat

Skill Claude CodeCodex

Generate customizable widget plugins for the prompts.chat feed system.

168k +233 yesterday A 13 tokens

prompt-lookup

50

f/prompts.chat

Skill Claude CodeCodex

Part of prompts.chat

Activates when the user asks about AI prompts, needs prompt templates, wants to search for prompts, or mentions prompts.chat. Use for discovering, retrieving, and improving prompts.

168k +233 yesterday A 39 tokens

huggingface/transformers

Skill Claude CodeCodex ✓ vendor

Fixes broken typing checks detected by ty, make typing, or make check-repo. Use when typing errors appear in local runs, CI, or PR logs.

165k 3d ago A 41 tokens original Apache-2.0

backend-code-review

52

langgenius/dify

Skill Claude CodeCodex

Use only when the user explicitly requests a review or audit of backend code under api/. Supports pending-change, file-focused, and pasted-diff reviews. Do not use for implementation-only requests, diagnosis without review intent, frontend code, or backend code outside api/.

154k +220 today A 60 tokens

langgenius/dify

Skill Claude CodeCodex

Use only when the user explicitly requests a review or audit of frontend code under web/ or packages/dify-ui/. Supports pending-change, file-focused, and pasted-diff reviews. Do not use for implementation-only requests, diagnosis without review intent, or backend-only code.

154k +220 today A 62 tokens

langgenius/dify

Skill Claude CodeCodex

Use when implementing or refactoring React/TypeScript components and the task requires decisions about component ownership, feature boundaries, state, data flow, effects, or interaction ownership. Do not use for review-only requests, test-only work, copy-only edits, or styling-only changes.

154k +220 changed today A 60 tokens

Command Development

55

anthropics/claude-code

Skill Claude CodeCodex ✓ vendor

This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash…

144k +180 2d ago A 99 tokens

Hook Development

56

anthropics/claude-code

Skill Claude CodeCodex ✓ vendor

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDEPLUGINROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop…

144k +180 2d ago A 117 tokens

Skill Development

57

anthropics/claude-code

Skill Claude CodeCodex ✓ vendor

This skill should be used when the user wants to "create a skill", "add a skill to plugin", "write a new skill", "improve skill description", "organize skill content", or needs guidance on skill structure, progressive disclosure, or skill development best practices for Claude Code plugins.

144k +180 2d ago A 63 tokens

insight-error-page

58

vercel/next.js

Skill Claude CodeCodex ✓ vendor

Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…

142k 3d ago A 83 tokens original MIT

vercel/next.js

Skill Claude CodeCodex ✓ vendor

Part of nextjs

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

142k 3d ago A 95 tokens original MIT

vercel/next.js

Skill Claude CodeCodex ✓ vendor

Part of nextjs

Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…

142k 3d ago A 170 tokens original MIT

Shubhamsaboo/awesome-llm-apps

Skill Claude CodeCodex

Reconstructs why code exists from local git history, including the introducing commit, later changes, current authors, repeated companion files, and likely intent. Use when the user asks "why does this code exist", "who wrote this function and why", or to "explain the history of this function" before a rewrite…

136k +360 2d ago A 82 tokens original Apache-2.0

project-graveyard

62

Shubhamsaboo/awesome-llm-apps

Skill Claude CodeCodex

Scans the developer's machine for dead side projects, autopsies each one from its git history (died at the payments wall, killed by a newer project, finished but never shipped), surfaces their personal death patterns, and picks the corpse most worth resurrecting — then helps ship it. Use when the user mentions…

136k +360 2d ago A 127 tokens original Apache-2.0

mcp-apps-builder

63

Shubhamsaboo/awesome-llm-apps

Skill Claude CodeCodex

MANDATORY for ALL MCP server work - mcp-use framework best practices and patterns. READ THIS FIRST before any MCP server work, including: Creating new MCP servers Modifying existing MCP servers (adding/updating tools, resources, prompts, widgets) Debugging MCP server issues or errors Reviewing MCP server code for…

136k +360 2d ago A 139 tokens original Apache-2.0

github/spec-kit

Skill Claude CodeCodex ✓ vendor

Add a community extension to the Spec Kit catalog from a GitHub issue submission. USE FOR: processing extension submission issues, validating catalog entries, updating catalog.community.json and docs/community/extensions.md, creating PRs. DO NOT USE FOR: creating new extensions from scratch, or first-party extension…

133k +609 today A 63 tokens original MIT

design-review

65

garrytan/gstack

Skill Claude CodeCodex

Designer's eye QA: finds visual inconsistency, spacing issues, hierarchy problems, AI slop patterns, and slow interactions — then fixes them. (gstack).

131k +534 changed today A 36 tokens original MIT

plan-ceo-review

66

garrytan/gstack

Skill Claude CodeCodex

CEO/founder-mode plan review. (gstack).

131k +534 changed today A 17 tokens original MIT

retro

67

garrytan/gstack

Skill Claude CodeCodex

Weekly engineering retrospective. (gstack).

131k +534 changed today A 10 tokens original MIT

design

68

nextlevelbuilder/ui-ux-pro-max-skill

Skill Claude CodeCodex

Part of ui-ux-pro-max

Comprehensive design skill: brand identity, design tokens, UI styling, logo generation (55 styles, Gemini or Atlas Cloud AI), corporate identity program (50 deliverables, CIP mockups), HTML presentations (Chart.js), banner design (22 styles, social/ads/web/print), icon design (15 styles, SVG, Gemini 3.1 Pro), social…

124k +735 changed today A 144 tokens original MIT

ui-styling

69

nextlevelbuilder/ui-ux-pro-max-skill

Skill Claude CodeCodex

Part of ui-ux-pro-max

Create beautiful, accessible user interfaces with shadcn/ui components (built on Radix UI + Tailwind), Tailwind CSS utility-first styling, and canvas-based visual designs. Use when building user interfaces, implementing design systems, creating responsive layouts, adding accessible components (dialogs, dropdowns…

124k +735 2d ago A 90 tokens original MIT

ui-ux-pro-max

70

nextlevelbuilder/ui-ux-pro-max-skill

Skill Claude CodeCodex

Part of ui-ux-pro-max

UI/UX design intelligence for web, mobile, and desktop. This skill should be used when designing, building, reviewing, or fixing interfaces, including pages, components, design systems, accessibility, interaction, responsive layout, typography, color, charts, and stack-specific UI implementation. Searchable local…

124k +735 2d ago A 114 tokens original MIT

electron/electron

Skill Claude CodeCodex

End-to-end Chrome security backport for an Electron release branch. Given a Chrome Releases blog URL and a branch (e.g. 41-x-y), determines which CVE fixes are missing from the actual synced source, writes the cherry-pick patches locally, validates them with e sync --3 + lint --patches, then pushes a single PR. Use…

123k 3d ago A 121 tokens original MIT

electron/electron

Skill Claude CodeCodex

Guide for performing Chromium version upgrades in the Electron project. Use when working on the roller/chromium/main branch to fix patch conflicts during e sync --3. Covers the patch application workflow, conflict resolution, analyzing upstream Chromium changes, and proper commit formatting for patch fixes.

123k 3d ago A 62 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: