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/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/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/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-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+.
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/wpf-to-winui3-migration/SKILL.md
Guide for migrating PowerToys modules from WPF to WinUI 3 (Windows App SDK). Use when asked to migrate WPF code, convert WPF XAML to WinUI, replace System.Windows namespaces with Microsoft.UI.Xaml, update Dispatcher to DispatcherQueue, replace DynamicResource with ThemeResource, migrate imaging APIs from System.Windows.Media.Imaging to Windows.Graphics.Imaging, convert WPF Window to WinUI Window, migrate .resx to .resw resources, migrate custom Observable/RelayCommand to CommunityToolkit.Mvvm source generators, handle WPF-UI (Lepo) to WinUI native control migration, or fix installer/build pipeline issues after migration. Keywords: WPF, WinUI, WinUI3, migration, porting, convert, namespace, XAML, Dispatcher, DispatcherQueue, imaging, BitmapImage, Window, ContentDialog, ThemeResource, DynamicResource, ResourceLoader, resw, resx, CommunityToolkit, ObservableProperty, WPF-UI, SizeToContent, AppWindow, SoftwareBitmap.
MicrosoftSkillmicrosoft/PowerToys/src/modules/cmdpal/ExtensionTemplate/TemplateCmdPalExtension/.github/skills/add-adaptive-card-form/SKILL.md
Create form-based UI for your Command Palette extension using Adaptive Cards. Use when asked to add forms, user input fields, toggle switches, text inputs, dropdown menus, data entry, surveys, configuration dialogs, or interactive content pages. Supports the Adaptive Cards Designer for visual form building.
garrytanSkillgarrytan/gstack/autoplan/SKILL.md
Auto-review pipeline — reads the full CEO, design, eng, and DX review skills from disk and runs them sequentially with auto-decisions using 6 decision principles. (gstack)
garrytanSkillgarrytan/gstack/benchmark/SKILL.md
Performance regression detection. (gstack)
garrytanSkillgarrytan/gstack/browse/SKILL.md
Drive a real browser through Aside: open a page, read it, click through a flow, take screenshots, check console errors. (gstack)
garrytanSkillgarrytan/gstack/canary/SKILL.md
Post-deploy canary monitoring. (gstack)
garrytanSkillgarrytan/gstack/codex/SKILL.md
OpenAI Codex CLI wrapper — three modes. (gstack)
garrytanSkillgarrytan/gstack/context-restore/SKILL.md
Restore working context saved earlier by /context-save. (gstack)
garrytanSkillgarrytan/gstack/context-save/SKILL.md
Save working context. (gstack)
garrytanSkillgarrytan/gstack/cso/SKILL.md
Security audit: supported static findings; qualified profiles add reproduction and repair candidates. (gstack)
garrytanSkillgarrytan/gstack/design-consultation/SKILL.md
Design consultation: understands your product, researches the landscape, proposes a complete design system (aesthetic, typography, color, layout, spacing, motion), and generates font+color preview... (gstack)
garrytanSkillgarrytan/gstack/design-html/SKILL.md
Design finalization: generates production-quality Pretext-native HTML/CSS. (gstack)
garrytanSkillgarrytan/gstack/design-review/SKILL.md
Designer's eye QA: finds visual inconsistency, spacing issues, hierarchy problems, AI slop patterns, and slow interactions — then fixes them. (gstack)
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.
