Skill Claude CodeCodex
WCAG 2.2 AA rules for HTML, CSS and React: contrast, keyboard, screen-reader semantics, voice access, forms and tables. Use when building or changing UI components, forms, navigation or any user-facing element.
Multi agens orchestration setup for Github Copilot, Cursor, Claude Code, OpenCode, Windsurf, Codex and Antigravity.
Skill Claude CodeCodex
WCAG 2.2 AA rules for HTML, CSS and React: contrast, keyboard, screen-reader semantics, voice access, forms and tables. Use when building or changing UI components, forms, navigation or any user-facing element.
Skill Claude CodeCodex
Conventions for HTTP endpoints, server actions and calls to external APIs: the contract, input validation, error shapes, status codes, versioning, pagination, retries and caching. Use when adding or changing an endpoint or server action, or wiring an external API.
Skill Claude CodeCodex
Method for scraping, transforming, validating and loading data through NDJSON. Use when building a scraper or ETL step, validating an NDJSON feed, or importing data into a CMS or database.
Skill Claude CodeCodex
Deployment pipelines, environment variables, cron routes, caching headers, releases and rollback. Use when changing CI/CD or platform deploy config (Docker, Vercel, AWS, nginx), env vars or cache headers, or rolling back a release.
Skill Claude CodeCodex
One independent reviewer checks a change against its acceptance criteria and answers PASS or FAIL before it is accepted. Use before accepting delegated work, before delivering a change, or when someone asks for a review.
Skill Claude CodeCodex
Visual direction for distinctive pages: a named aesthetic, type pairing, color and spacing tokens, and motion. Use when designing a landing page, marketing site or UI theme where the look itself matters, not when scaffolding components.
Skill Claude CodeCodex
Branch names, commit messages, pushing and opening a pull request, and working with the task tracker. Use when branching, committing, pushing or opening a PR.
Skill Claude CodeCodex
Three isolated reviewers vote PASS or BLOCK on a high-risk change; the majority decides, and every MUST-FIX any of them raises is fixed. Use for changes to auth, payments, data migrations or anything that deletes data, after a third fast-review FAIL, or when someone asks for an independent panel.
Skill Claude CodeCodex
Security rules for authentication, authorization, data access policies, input handling, headers and CSP, secrets and scheduled routes. Use when building an auth flow, adding an endpoint or handler, writing access policies, setting security headers, handling user input, or auditing security.
Skill Claude CodeCodex
Keeps the team's memory: where what you learned goes (your memory, shared with the team when it is about the project, a lesson in .opencastle/lessons/, or a team skill for a procedure), and how lessons are cited, re-verified and graduated. Use when you confirm something true for anyone working in the repository (a fix…
Skill Claude CodeCodex
Technical SEO: meta tags, Open Graph, canonical URLs, JSON-LD structured data, sitemaps and robots.txt. Use when adding or fixing any of these, or when pages are not being crawled or indexed.
Skill Claude CodeCodex
Standard for technical prose in four layers: Diataxis document modes, Google developer style, Simplified Technical English and Global English, with templates for ADRs, changelogs and known issues. Use when writing or reviewing docs, RFCs, README files, ADRs, changelog entries, PR descriptions or commit messages.
Skill Claude CodeCodex
How to test a change: test first, what to cover, what to mock, and the anti-patterns that let tests pass without proving anything. Use when writing or planning tests, mocking a dependency, fixing a flaky test, or checking coverage.
Skill Claude CodeCodex
Type design in TypeScript: discriminated unions, branded types, narrowing, exhaustiveness and boundary validation. Use when modelling domain types, tightening strictness or generics, removing as casts, or migrating code to stricter types.
Skill Claude CodeCodex
Removes AI tells from prose: puffery, AI vocabulary, em dashes, hedging, filler and abstract metaphor nouns. Use when writing or editing prose a person reads: docs, README files, PR descriptions, commit messages, changelogs, release notes.
Skill Claude CodeCodex
The checks a change passes before it is done or merged: secrets, the project's tests, lint and build, size, new dependencies, the browser for UI, review, regression and a smoke test. Use when deciding which checks a change needs, or whether work is ready to merge or deploy.
Skill Claude CodeCodex
Levers for writing documents an agent reads: context pointers, progressive disclosure, completion criteria, leading words and pruning. Use when creating or editing a skill, an agent, an instruction file, AGENTS.md or CLAUDE.md.
Skill Claude CodeCodex
Astro pages, layouts, content collections, hydration directives and integrations. Use when adding or changing Astro pages, components or content collections, or choosing a client: directive.
Skill Claude CodeCodex
Browser testing through the Chrome DevTools MCP: navigation, DOM snapshots, scripted assertions, responsive checks, console and performance traces. Use when verifying a UI change in Chrome, checking breakpoints, or reading console errors.
Skill Claude CodeCodex
Cloudflare Workers, Pages, wrangler bindings, KV/D1/R2 storage and Durable Objects. Use when building or deploying a Worker or Pages site, editing wrangler.toml, or using KV, D1, R2 or Durable Objects.
Skill Claude CodeCodex
Contentful content types, GraphQL/REST queries, CLI migrations, assets and locales. Use when changing a Contentful content model, querying Contentful, or migrating its content.
Skill Claude CodeCodex
Convex schemas, queries, mutations, actions, auth, migrations and components. Use when designing a Convex schema, writing Convex functions, setting up Convex auth, or migrating Convex data.
Skill Claude CodeCodex
Deploys and manages apps, databases and services on a self-hosted Coolify instance, with env vars, diagnostics and batch operations. Use when deploying to Coolify, debugging a Coolify deployment, or managing its servers.
Skill Claude CodeCodex
Cypress E2E and component tests: cy.intercept(), cy.session(), custom commands and CI artifacts. Use when writing or debugging Cypress specs, or running Cypress in CI.
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: