Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
DietrichGebertSkillDietrichGebert/ponytail/skills/ponytail-audit/SKILL.md
Whole-repo audit for over-engineering. Like ponytail-review, but scans the entire codebase instead of a diff: a ranked list of what to delete, simplify, or replace with stdlib/native equivalents. Use when the user says "audit this codebase", "audit for over-engineering", "what can I delete from this repo", "find bloat", "ponytail-audit", or "/ponytail-audit". One-shot report, does not apply fixes.
DietrichGebertSkillDietrichGebert/ponytail/skills/ponytail-review/SKILL.md
Code review focused exclusively on over-engineering. Finds what to delete: reinvented standard library, unneeded dependencies, speculative abstractions, dead flexibility. One line per finding: location, what to cut, what replaces it. Use when the user says "review for over-engineering", "what can we delete", "is this over-engineered", "simplify review", or invokes /ponytail-review. Complements correctness-focused review, this one only hunts complexity.
DietrichGebertSkillDietrichGebert/ponytail/skills/ponytail/SKILL.md
Forces the laziest solution that actually works, simplest, shortest, most minimal. Channels a senior dev who has seen everything: question whether the task needs to exist at all (YAGNI), reach for the standard library before custom code, native platform features before dependencies, one line before fifty. Supports intensity levels: lite, full (default), ultra. Use on ANY coding task: writing, adding, refactoring, fixing, reviewing, or designing code, and choosing libraries or dependencies. Also use whenever the user says "ponytail", "be lazy", "lazy mode", "simplest solution", "minimal solution", "yagni", "do less", or "shortest path", or complains about over-engineering, bloat, boilerplate, or unnecessary dependencies. Do NOT use for non-coding requests (general knowledge, prose, translation, summaries, recipes).
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-cache-components-optimizer/SKILL.md
Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then guards against regression. Use when asked to make a route's navigation instant (its static shell commits immediately), fix a route whose static shell isn't prerendered/served/prefetched, grow a route's static shell or fix its slow first paint, diagnose which Suspense boundary keeps a route out of its static shell, or write the instant() e2e guard for one. Requires Next.js 16.3+ with cacheComponents; directs an upgrade if older.
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-models/SKILL.md
Cross-model benchmark for gstack skills. (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/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)
garrytanSkillgarrytan/gstack/design-shotgun/SKILL.md
Design shotgun: generate multiple AI design variants, open a comparison board, collect structured feedback, and iterate. (gstack)
garrytanSkillgarrytan/gstack/deslop-shared-libs/SKILL.md
Find worthwhile shared-code extractions in recent work. (gstack)
garrytanSkillgarrytan/gstack/devex-review/SKILL.md
Live developer experience audit. (gstack)
garrytanSkillgarrytan/gstack/diagram/SKILL.md
Turn an English description (or mermaid source) into a diagram triplet: the source, an editable .excalidraw file you can open on excalidraw.com, and rendered SVG + PNG. (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.
