Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
VercelSkillvercel/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.
VercelSkillvercel/next.js/.agents/skills/react-sync/SKILL.md
Build local React changes in the bundle variants consumed by Next.js, sync them into a local Next.js checkout, and test the resulting integration. Use when working on React changes that need validation in Next.js, or when asked to run buildForNext, pnpm sync-react, or synchronize a React checkout with Next.js.
VercelSkillvercel/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.
VercelSkillvercel/next.js/.agents/skills/runtime-debug/SKILL.md
Debug and verification workflow for runtime-bundle and module-resolution regressions. Use when diagnosing unexpected module inclusions, bundle size regressions, or CI failures related to NEXT_SKIP_ISOLATE, nft.json traces, or runtime bundle selection (module.compiled.js). Covers CI env mirroring, full stack traces via __NEXT_SHOW_IGNORE_LISTED, route trace inspection, and webpack stats diffing.
VercelSkillvercel/next.js/.agents/skills/sandbox-bench/SKILL.md
Benchmark React or Next.js changes on Vercel Sandbox VMs with paired A/B statistics: react PR/commit vs base, or Next.js PR/commit vs base, measured end-to-end through the bench/render-pipeline app (rps, latency, p95; TTFB, RSS and document/Flight bytes when the Next side captures them) and, for React changes, through the react repo's flight-ssr-bench fixture (Node AND Edge web-streams paths, Fizz and Flight+Fizz). Use whenever the user asks to bench, perf test, or A/B a React PR, a react-server-dom / Flight / vendored React change, or a Next.js PR ("is this PR faster", "does this regress RSC?", "measure the perf impact of <commit>"), even if they don't say "benchmark" — any request to quantify a server-side performance difference between two revisions belongs here. Runs remotely (laptop-free), applies correctness gates before measuring, and reports boot-level confidence intervals.
VercelSkillvercel/next.js/.agents/skills/update-docs/SKILL.md
This skill should be used when the user asks to "update documentation for my changes", "check docs for this PR", "what docs need updating", "sync docs with code", "scaffold docs for this feature", "document this feature", "review docs completeness", "add docs for this change", "what documentation is affected", "docs impact", or mentions "docs/", "docs/01-app", "docs/02-pages", "MDX", "documentation update", "API reference", ".mdx files". Provides guided workflow for updating Next.js documentation based on code changes.
VercelSkillvercel/next.js/.agents/skills/v8-jit/SKILL.md
V8 JIT optimization patterns for writing high-performance JavaScript in Next.js server internals. Use when writing or reviewing hot-path code in app-render, stream-utils, routing, caching, or any per-request code path. Covers hidden classes / shapes, monomorphic call sites, inline caches, megamorphic deopt, closure allocation, array packing, and profiling with --trace-opt / --trace-deopt.
VercelSkillvercel/next.js/.agents/skills/write-api-reference/SKILL.md
Produces API reference documentation for Next.js APIs: functions, components, file conventions, directives, and config options.
VercelSkillvercel/next.js/.agents/skills/write-guide/SKILL.md
Generates technical guides that teach real-world use cases through progressive examples.
VercelSkillvercel/next.js/skills/next-cache-components-adoption/SKILL.md
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 decide between opting routes out with `export const instant = false` and fixing them in place.
VercelSkillvercel/next.js/skills/next-dev-loop/SKILL.md
Verify Next.js runtime behavior after editing app code. Use this skill to confirm a change actually works in a running app — not just that it compiles or type-checks. Combines /_next/mcp (Next.js's view) with agent-browser (the browser's view). Requires a running `next dev`.
VercelSkillvercel/next.js/skills/next-partial-prefetching-adoption/SKILL.md
Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the `partialPrefetching` flag, opt routes in with `export const prefetch = 'partial'`, audit `Link prefetch={true}` behavior, preserve existing prefetched UI with `instant()` tests, or resolve the instant-link-prefetch-partial and instant-shell-url-data insights.
VercelSkillvercel/next.js/skills/next-partial-prefetching-optimizer/SKILL.md
Optimize what selected Next.js client navigations include before the click under Partial Prefetching. Use after Cache Components and Partial Prefetching are adopted when the user wants selected URL-specific UI to be instant, wants reusable content to wait for navigation, or needs to choose between default, viewport, and intent prefetching. Requires Next.js 16.3+.
GitHubSkillgithub/spec-kit/.github/skills/add-community-extension/SKILL.md
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 work.
GitHubSkillgithub/spec-kit/.github/skills/code-review/SKILL.md
Reviews Spec Kit code changes for positive and negative test coverage, regression evidence for bug fixes, and consistent repository terminology. Use when reviewing a diff or pull request. Do not use for implementing changes or posting GitHub review actions.
MicrosoftSkillmicrosoft/PowerToys/.github/skills/powertoys-verification/SKILL.md
Verify PowerToys behavior end-to-end with the winapp CLI across two scenarios: (A) a module's release checklist against the installed build; (B) PR validation — derive each PR's checklist from its description + diff, then drive it against the installed build (a merged/shipped PR, or a whole release/hotfix set) or by building + sideloading the module when the PR isn't in the build yet (unmerged or not-yet-released). Drive each item via UIA invoke / Named Events / settings.json edits / clipboard / GPO / SendInput, and emit a structured PASS / FAIL / BLOCKED verdict per item with evidence (FAIL distinguishes product defects from stale/ambiguous checklist items). Use when asked to verify a module checklist, validate a PR, sign off a release/hotfix's PRs, or QA installed/sideloaded PowerToys bits. Combines generic winapp ui mechanics (references/winapp-ui-testing.md) with PT-specific recipes, per-scenario playbooks (references/scenarios/), and the helper .ps1 files shipped with this skill.
MicrosoftSkillmicrosoft/PowerToys/.github/skills/release-note-generation/SKILL.md
Toolkit for generating PowerToys stable or preview release notes from GitHub milestones, commit ranges, or Azure DevOps release-candidate builds. Use when asked to create release notes, summarize milestone PRs, generate changelog, prepare a draft preview release, calculate PR deltas across main and stable, update release documentation, manage PR milestones, or prepare and validate release assets.
MicrosoftSkillmicrosoft/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.
MicrosoftSkillmicrosoft/PowerToys/.github/skills/ui-tests-migration/SKILL.md
Create, migrate, and stabilize PowerToys UI tests with Microsoft.PowerToys.UITest.Next and winappcli, through local VM success, commit/push, and CI validation. Use for ports, new UITest projects, flaky CI tests, persistent Hyper-V validation, Settings IPC authentication/test signing, Explorer/Shell selection, preview handlers, thumbnail providers, hotkey activation, stateful process lifecycle, composed WinUI/WebView visual baselines, or foreground failures. Covers APIs, scaffolding, test design, diagnostics, and the required handoff to ui-tests-pipeline-ci. Keywords: UI test, UITests, UITestAutomation.Next, winappcli, WinAppDriver, Selenium, Settings IPC, not-microsoft-signed, Authenticode, local VM, Hyper-V, checkpoint, migrate, flaky, CI stability, Explorer, Shell extension, WebView2.
MicrosoftSkillmicrosoft/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.
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.
