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Claude skills and agent skills

Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.

Best matches · from page 2Worked for most · soon
SupabaseSkill

studio-mock-api-tests

supabase/supabase/.agents/skills/studio-mock-api-tests/SKILL.md

Component tests for Supabase Studio that mock API requests at the

111k8d agoReads credentialsDiscuss
SupabaseSkill

vitest

supabase/supabase/.agents/skills/vitest/SKILL.md

Vitest API and config reference (Jest-compatible) — mocking with vi.*, spies, fake timers, coverage configuration, fixtures, snapshots, and test filtering. Use for Vitest API and configuration questions anywhere in the monorepo; for Studio-specific test strategy and component-test setup, start with studio-testing and studio-mock-api-tests.

111k8d agoDiscuss
MicrosoftSkill

flaky-smoke-tests

microsoft/vscode/.github/skills/flaky-smoke-tests/SKILL.md

Diagnose intermittent VS Code Electron smoke-test failures from the Azure DevOps Flaky Smoke Tests pipeline (definition 700). Covers finding failed iterations, downloading task logs and platform artifacts with Azure CLI, correlating cumulative runner logs, tracing the introducing commit, and queueing focused validation runs.

193k21d agoDiscuss
MicrosoftSkill

ui-tests-local-vm

microsoft/PowerToys/.github/skills/ui-tests-local-vm/SKILL.md

Run PowerToys UITest.Next suites in persistent Hyper-V VMs over PowerShell Direct. Validate full default and constrained suites on Windows 10 and Windows 11, plus applicable ARM64 guests, then automatically hand implementation tasks to ui-tests-pipeline-ci for commit/push and CI validation. Local green is not end-to-end completion. Use for agentic UI-test iteration, reusable standard-user desktops, payload staging, evidence export, VM customization, clean baselines, or hosts without nested virtualization. Keywords: Hyper-V, local VM, virtual machine, PowerShell Direct, Copy-VMFile, VMBus, checkpoint, unattend, autounattend, ISO, Windows 10 LTSC, Windows 11, ARM64, Windows on ARM, UI tests, UITest.Next, winappcli, TRX, CI handoff.

139k8mo agoDiscuss
obraSkill

test-driven-development

obra/superpowers/skills/test-driven-development/SKILL.md

Use when implementing any feature or bugfix, before writing implementation code

292k3mo agoDiscuss
MicrosoftSkill

ui-tests-pipeline-ci

microsoft/PowerToys/.github/skills/ui-tests-pipeline-ci/SKILL.md

Microsoft FTE-only completion workflow for PowerToys UI-test implementation: automatically continue after successful local VM suites, commit and push scoped changes, queue CI, wait synchronously, and stabilize through Azure CLI and Azure DevOps REST APIs. No separate push/run-CI request is needed for create, migrate, or stabilize tasks unless the user limited scope. Also use for explicit UITests CI, setup preflight, 401/403 diagnosis, build reuse, recordings/artifacts, and the three-run limit. Keywords: FTE, az, Azure CLI, Azure DevOps, pipeline, UI Test Automation, UITests CI, commit, push, local-to-CI handoff, buildNow, specificBuildId, uiTestModules, CI flake.

139k8mo agoDiscuss
SupabaseSkill

test-the-docs

supabase/supabase/.agents/skills/test-the-docs/SKILL.md

Execute runnable docs snippets and examples inside a disposable Docker Compose sandbox (runner container + local Supabase stack via `supabase start`). Use after Draft or during Self-review when asked to test the docs, fact-check CLI/SQL/code samples, or produce a verification report for a docs PR. Complements review-the-docs build and review checks; does not replace them.

111k8d agoDiscuss
n8n-ioSkill

n8n:nathan

n8n-io/n8n/.agents/skills/nathan/SKILL.md

Deploy a temporary n8n test instance (or generate a local docker run command) via the internal "Nathan" bot, from the repo instead of Slack. Use after opening a PR to offer the user a live test instance, or whenever someone asks to spin up / deploy a test instance for a branch.

206k20d agoReads credentialsDiscuss
langgeniusSkill

e2e-cucumber-playwright

langgenius/dify/.agents/skills/e2e-cucumber-playwright/SKILL.md

Use when writing, changing, or reviewing Cucumber and Playwright tests under `e2e/`, including feature files, step definitions, support code, scenario tags, locators, and assertions. Do not use for Vitest, React Testing Library, backend tests, or generic browser automation outside the E2E suite.

157k4d agoDiscuss
VercelSkill

router-act

vercel/next.js/.agents/skills/router-act/SKILL.md

How to write end-to-end tests using createRouterAct and LinkAccordion. Use when writing or modifying tests that need to control the timing of internal Next.js requests (like prefetches) or assert on their responses. Covers the act API, fixture patterns, prefetch control via LinkAccordion, fake clocks, and avoiding flaky testing patterns.

143k5mo agoDiscuss
VercelSkill

pr-status-triage

vercel/next.js/.agents/skills/pr-status-triage/SKILL.md

Triage CI failures and PR review comments using scripts/pr-status.js. Use when investigating failing CI jobs, flaky tests, or PR review feedback. Covers blocker-first prioritization (build > lint > types > tests), CI env var matching for local reproduction, and the Known Flaky Tests distinction.

143k5mo agoDiscuss
browser-useSkill

qa

browser-use/browser-use/skills/qa/SKILL.md

QA-test a website or web app and return a 1-5 quality score (5 = flawless, 1 = broken) with evidence. Use when the user wants to test, QA, evaluate, score, or "check how good" a site, page, flow, or app — including a local dev server (e.g. "qa test localhost:5173", "does the checkout work?", "rate this landing page"). Drives a real Browser Use cloud browser, tunneling localhost automatically.

117k4mo agoPipes a download into a shellDiscuss
Significant-GravitasSkill

open-pr

Significant-Gravitas/AutoGPT/.claude/skills/open-pr/SKILL.md

Open a pull request with proper PR template, test coverage, and review workflow. Guides agents through creating a PR that follows repo conventions, ensures existing behaviors aren't broken, covers new behaviors with tests, and handles review via bot when local testing isn't possible. TRIGGER when user asks to "open a PR", "create a PR", "make a PR", "submit a PR", "open pull request", "push and create PR", or any variation of opening/submitting a pull request.

188k19d agoDiscuss
GoogleSkill

agent-tui

google-gemini/gemini-cli/.gemini/skills/agent-tui/SKILL.md

Main Agents: Do NOT use this skill directly. If you need to test the TUI, invoke the `tui_tester` subagent. Drive terminal UI (TUI) applications programmatically for testing, automation, and inspection. Use when: automating CLI/TUI interactions, regression testing terminal apps, or verifying interactive behavior. Also use when: user asks "what is agent-tui", "what does agent-tui do", "demo agent-tui", "show me agent-tui", "how does agent-tui work", or wants to see it in action.

107k5mo agoPipes a download into a shellDiscuss
affaan-mSkill

tdd-workflow

affaan-m/ECC/.agents/skills/tdd-workflow/SKILL.md

Use this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.

246k30d agoDiscuss
MicrosoftSkill

launch

microsoft/vscode/extensions/copilot/.agents/skills/launch/SKILL.md

Launch and automate VS Code Insiders with the Copilot Chat extension using @playwright/cli via Chrome DevTools Protocol. Use when you need to interact with the VS Code UI, automate the chat panel, test the extension UI, or take screenshots. Triggers include 'automate VS Code', 'interact with chat', 'test the UI', 'take a screenshot', 'launch with debugging'.

193k21d agoDiscuss
garrytanSkill

qa-only

garrytan/gstack/qa-only/SKILL.md

Report-only QA testing. (gstack)

134k6d agoDiscuss
DeepSeekSkill

snapshot-skill

deepseek-ai/deepseek-harness/snapshots/session/skill-load/workspace/.dsh/skills/snapshot-skill/SKILL.md

Exercise project skill discovery and loading in snapshot tests.

238k52d agoDiscuss
garrytanSkill

qa

garrytan/gstack/qa/SKILL.md

Systematically QA test a web application and fix bugs found. (gstack)

134k6d agoDiscuss
obraSkill

systematic-debugging

obra/superpowers/skills/systematic-debugging/SKILL.md

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes

292k3mo agoDiscuss
CLAUDE.md vs AGENTS.md

About skills

What is a Claude skill?

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.

How do I use one I find here?

Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.

What do the warnings mean?

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.

Which skills worked for people?

Open a skill to see its discussion. Reports from people and their agents are coming.