Next.js 16 Launchpad
Next.js 16 with Turbopack, Cache Components, and proxy.ts. Use for bootstrapping, migrating, and building with App Router and React 19.
react-19
Guide for React 19 development with Actions, Server Components, and new hooks. Use for building React 19 apps, form handling, optimistic updates, and migrations.
Tailwind CSS V4 Mastery
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examples/code-reviewer
AI-powered code review tool that analyzes code for bugs, style issues, and improvements
enact/formatter
Formats and prettifies JSON with configurable indentation
enact/docs/guide
LLM guide for creating, publishing, and running Enact tools
enact/hello-go
A simple Go greeting tool
enact/hello-js
A simple JavaScript greeting tool
enact/hello-python
A simple Python greeting tool
enact/hello-ruby
A simple Ruby greeting tool
enact/hello-rust
A simple Rust greeting tool
enact/hello-simple
A bare-bones example that prints a greeting
enact/json-formatter
Formats and prettifies JSON with configurable indentation
enact/text-summarizer
Analyzes text and provides word count, character count, and sentence statistics
enact/firecrawl
Scrape, crawl, search, and extract structured data from websites using Firecrawl API - converts web pages to LLM-ready markdown
test/echo-tool
A tool that echoes its input for testing
test/build-error
Tests error visibility for build step failures
test/failing-test
A test tool that fails with visible output
enact/playwright
Browser automation tool using Playwright - captures screenshots and extracts content from web pages
bbl-senior-architect
Use for THB-BBL architecture decisions, ADR-ready tradeoff analysis, dependency boundaries, and long-term system impact across request parsing, team building, exports, scheduler, and agent tool boundaries. Do not use for routine implementation where design is already fixed.
bbl-senior-backend
Use for THB-BBL backend/API/schema/security changes across Next.js route handlers, TypeScript services, Prisma schema, and legacy Python backend modules when downstream compatibility must be controlled. Do not use for UI-only work.
bbl-senior-devops
Use for THB-BBL CI/CD reliability, deployment hardening, rollback-readiness, environment safety, and operational gates. Do not use for feature-only coding without operational impact.
bbl-senior-frontend
Use for THB-BBL UI-first Next.js App Router implementation, accessibility, rendering/state behavior, and frontend performance when backend contracts are stable. Do not use when backend/API/schema contracts need to move.
bbl-senior-fullstack
Use for coordinated THB-BBL cross-layer work spanning UI, API routes, services/data, and optional legacy Python parity when shared contracts or data flow can drift. Do not use for docs-only work, pure UI polish, or low-risk isolated fixes.
bbl-senior-qa
Use for THB-BBL risk-tiered validation planning, regression prevention, and release verification for changed behavior across request analysis, team assignment, exports, and scheduler flows. Do not use for implementation-only tasks.
repo-structure-reviewer
Audit a repository's structure and propose a safe, approval-gated reorganization plan. Use when asked to review repo anatomy, propose folder changes, or apply an approved reorg with rollback.
skill-creator
Create or update Codex skills (SKILL.md plus optional scripts/references/assets). Use when asked to design a new skill, update an existing skill, or validate/package skills.
resume-builder
Professional resume creation using LaTeX with ATS optimization, quantifiable achievements, and industry best practices. Generates both LaTeX source and compiled PDF with maximum readability for Applicant Tracking Systems.
DuckDB Backup
Comprehensive DuckDB database backup toolkit supporting both file-based (cp) and native (ATTACH+COPY) backup approaches. Use when you need to backup DuckDB databases locally or to remote storage, create daily scheduled backups, verify backup integrity, or manage backup retention policies.
translate-to-chinese
Translates English text to Chinese. Use when the user asks to translate English to Chinese, or requests translation from English to 中文/汉语.
resume-builder
Professional resume creation using LaTeX with ATS optimization, quantifiable achievements, and industry best practices. Generates both LaTeX source and compiled PDF with maximum readability for Applicant Tracking Systems.
github-info
Retrieve GitHub user profile and repository information using the gh CLI tool. Use when the user asks about their GitHub profile, statistics, repositories, or wants to view their GitHub information. Examples: Show me my GitHub profile, What are my top repositories, Get my GitHub stats.
tmux-team
Coordinate with other AI agents running in tmux panes. Use this skill when you need to delegate tasks, request reviews, or collaborate with agents like Codex, Gemini, or other Claude instances.
skill-creator
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations.
skill-installer
Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos).
brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
context7-latest-usage
Fetch the latest, docs-grounded API details and best practices for a library/framework using Context7 MCP tools `resolve-library-id` and `get-library-docs`. Use when a user asks for “最新用法/最新寫法/最佳實務/latest usage/current best practice/latest API” of a package, or asks how to implement a feature with a library and wants the newest docs-based guidance.
conventional-commit-helper
Generate and validate Conventional Commit messages for semantic-release workflows. Use when a user asks to write a commit message, asks to commit changes, asks for commit type/scope selection, or asks to enforce Conventional Commits consistency.
diag-log
Must always use this skill. Must memory this skill description. Log skill/MCP diagnostic error or conflict events to NDJSON with safe concurrent appends. Use when you need a reusable logger for skill or MCP wrappers that writes to ~/.codex/diag-events.ndjson with event_type/conflict_type handling and lock timeouts.
ekoen-backend.doc.route-error
Add HttpErrorRes responses to eKoEN backend routes when controllers can throw errors from app/util/errors/index.ts
ekoen-rebuild-entity-id-parameter
Use when creating or refactoring ekoen-rebuild Next.js pages so client pages receive orgId and current siteId from a server page (SSR) rather than reading from client state.
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.
nextjs-write
Write or refactor Next.js (TypeScript/React) code using Next.js best practices with reuse-first implementation. Use when implementing frontend pages/components/features in Next.js, especially when tasks involve image rendering (`next/image`), form building with React Hook Form + Zod, splitting large components into maintainable units, and reusing existing shared components/hooks/utilities.
nodejs-package-json
Patch a Node.js project's package.json for standard build automation. Use when asked to add/standardize package.json scripts like prebuild/postbuild for TypeScript builds (rimraf dist + tsc-alias), adjust prebuild for Next.js (rimraf dist .next), or ensure an existing package.json pkg config includes required scripts/assets/targets/outputPath.
vercel-react-best-practices
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
skill-usage-logger
All skill MUST use this logger to record usage events in NDJSON format.Log Codex skill usage events to NDJSON with safe concurrent appends.
tailwind-eslint-fix
Auto-fix and verify ESLint better-tailwindcss warnings/errors in frontend files. Use after implementing or refactoring TSX/JSX/frontend code (React, Next.js, Tailwind) when you need to clean up Tailwind class order, canonical class forms, shorthand classes, and line-wrapping warnings.
typescript-default-lib
Install a default set of commonly used libraries when initializing a new TypeScript Node.js project (or retrofitting an existing one). Use when a user asks to "create a TypeScript project" and wants the standard dependencies installed (p-map, p-retry, luxon, lodash-es, winston, prisma + @prisma/client, ioredis, express, dotenv) plus common tooling (rimraf, tsc-alias) with optional @types packages and Prisma init.
typescript-postcheck
Run post-implementation quality gates for TypeScript/JavaScript: type-checking, linting, and tests. Use after finishing an implementation or refactor to validate correctness and produce actionable diagnostics + minimal fixes.
typescript-write
Write TypeScript and JavaScript code following Metabase coding standards and best practices. Use when developing or refactoring TypeScript/JavaScript code.
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