Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
CloudflareSkillcloudflare/workerd/.opencode/skills/parent-project-skills/SKILL.md
Bootstrap skill for discovering additional skills and context from a parent project when workerd is used as a submodule. Load this skill when tasks span project boundaries (e.g., Sentry/production investigation, integration testing, cross-repo debugging).
CloudflareSkillcloudflare/workerd/.opencode/skills/pr-review-guide/SKILL.md
Guidelines for posting pull request review comments via GitHub CLI, including suggested edits format, handling unresolved comments, etiquette, and report/issue tracking. Load this skill when reviewing a PR via GitHub and posting inline comments.
CloudflareSkillcloudflare/workerd/.opencode/skills/receiving-code-review/SKILL.md
Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation
CloudflareSkillcloudflare/workerd/.opencode/skills/rust-review/SKILL.md
Rust code review for workerd. Covers CXX FFI safety, unsafe code patterns, JSG resource conventions, error handling, and a review checklist adapted from the C++ review skills. Load this skill when reviewing Rust code in src/rust/.
CloudflareSkillcloudflare/workerd/.opencode/skills/ts-style/SKILL.md
JS/TS style guidelines and review checklist for workerd. Covers TypeScript strictness, import conventions, export patterns, private field syntax, error handling, feature gating, and test structure. Load this skill when reviewing or writing JavaScript or TypeScript code in src/node/, src/cloudflare/, or JS/TS test files under src/workerd/.
CloudflareSkillcloudflare/workerd/.opencode/skills/update-v8/SKILL.md
Step-by-step guide for updating the V8 JavaScript engine in workerd, including patch rebasing, dependency updates, integrity hashes, and verification. Load this skill when performing or assisting with a V8 version bump.
CloudflareSkillcloudflare/workerd/.opencode/skills/wd-test-format/SKILL.md
Detailed guide for authoring .wd-test files in workerd, with examples of bindings, Durable Objects, multi-service configs, TypeScript tests, and network access.
CloudflareSkillcloudflare/workerd/.opencode/skills/workerd-api-review/SKILL.md
Performance optimization, API design & compatibility, security vulnerabilities, and standards spec compliance for workerd code review. Covers tcmalloc-aware perf analysis, compat flags, autogates, web standards adherence, and security patterns. Load this skill when reviewing API changes, performance-sensitive code, security-relevant code, or standards implementations.
CloudflareSkillcloudflare/workerd/.opencode/skills/workerd-safety-review/SKILL.md
Memory safety, thread safety, concurrency, and critical detection patterns for workerd code review. Covers V8/KJ boundary hazards, lifetime management, cross-thread safety, and coroutine pitfalls. Load this skill when reviewing any C++ code.
CloudflareSkillcloudflare/workerd/.opencode/skills/wpt-update/SKILL.md
Updates and triages the Web Platform Tests dependency in workerd. Use when asked to bump, update, or triage WPT.
CloudflareSkillcloudflare/agents/agent-think/skills/open-pr/SKILL.md
Take a cloudflare/agents GitHub issue plus any repro findings and one-shot a fix PR — branch, change, test, push, and open the PR linked to the issue.
CloudflareSkillcloudflare/agents/agent-think/skills/reproduce/SKILL.md
Reproduce a cloudflare/agents GitHub issue by scaffolding a minimal Agents/Worker project and deploying it to a temporary Cloudflare account, then report findings back on the issue.
CloudflareSkillcloudflare/agents/examples/agent-skills/src/skills/debug-plan/SKILL.md
Create a systematic debugging plan for a bug report. Use when the user asks how to investigate a failure, regression, or unexpected behavior.
CloudflareSkillcloudflare/agents/examples/agent-skills/src/skills/pirate-voice/SKILL.md
Rewrite or answer in a playful pirate voice. Use when the user asks for pirate tone, nautical phrasing, or says to talk like a pirate.
CloudflareSkillcloudflare/agents/examples/agent-skills/src/skills/release-notes/SKILL.md
Draft short release notes from a list of changes. Use when the user asks for changelogs, release notes, or a concise product update.
CloudflareSkillcloudflare/agents/examples/agent-skills/src/skills/test-plan/SKILL.md
Produce a focused test plan for a change. Use when the user asks how to test a feature, what cases to cover, or for a QA checklist before shipping.
CloudflareSkillcloudflare/agents/examples/assistant/agents/assistant/agents/my-assistant/skills/workspace-digest/SKILL.md
Summarize the files saved in this assistant's shared workspace. Use when the user asks what is in their workspace, for a file inventory, or a digest of saved work.
CloudflareSkillcloudflare/vibesdk/worker/agents/think/skills/app-file-structure/SKILL.md
Author Cloudflare Worker Bundler-compatible apps that build and preview correctly inside a space. Use this skill whenever you scaffold, modify, or deploy a project that will be built with `@cloudflare/worker-bundler` (i.e. anything served from `/space/:name/preview/:branch/`). Covers wrangler config, project layout, static asset rules, server entry conventions, npm dependency limits, and the most common cause of blank previews (JSX in browser scripts).
CloudflareSkillcloudflare/vibesdk/worker/agents/think/skills/frontend-design-landing-page/SKILL.md
Marketing landing page and conversion-focused product page reference. Use this skill when building hero sections, feature grids, pricing pages, testimonials, CTAs, footers, navigation bars, or any public-facing marketing surface. Covers a warm, professional, developer-friendly design language (cream backgrounds, generous whitespace, pill CTAs, corner-bracket card decorations) and a complete token set, animation system, and copy-paste component snippets. NOT for product/dashboard UIs — use frontend-design-saas for those.
CloudflareSkillcloudflare/vibesdk/worker/agents/think/skills/frontend-design-saas/SKILL.md
S-tier SaaS dashboard and product UI reference. Use this skill when building application shells, data tables, settings panels, billing pages, dashboards, auth flows, admin tools, or any internal/customer-facing SaaS product UI. Inspired by Stripe, Linear, Vercel, Airbnb, Notion. Covers neutral-led design tokens, sidebar+content shells, dense data UIs, form-heavy configuration pages, command palettes, empty states, and the accessibility (WCAG AA+) bar these products clear.
A folder with a SKILL.md file: a name, a description of when to use it, and instructions. Claude loads a skill only when the task matches its description.
Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.
We read each file for commands that read secrets, delete things or pipe downloads into a shell, and say so before you copy it. No warning is not a promise that a file is safe.
Open a skill to see its discussion. Reports from people and their agents are coming.
