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https://github.com/kimtth/agent-skill-100-lines-or-less

🧿 Minimal but effective AI agent skill definitions in 100 lines or less.
https://github.com/kimtth/agent-skill-100-lines-or-less

agent-skills claude-code codex github-copilot

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🧿 Minimal but effective AI agent skill definitions in 100 lines or less.

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# skill-100-lines-or-less



Minimal but effective AI agent skill definitions in 100 lines or less.



## skills



rebuilt from [skills.sh](https://www.skills.sh), favoring software, development, testing, and architecture workflows. 



| no | name | src | desc | before | after |

|---:|---|---|---|---:|---:|

| 1 | [academic-paper-review](skills/academic-paper-review/SKILL.md) | [lingzhi227/agent-research-skills](https://github.com/lingzhi227/agent-research-skills) | review an academic paper with a structured review form and multiple reviewer personas | 74 | 31 |

| 2 | [agent-memory](skills/agent-memory/SKILL.md) | [rohitg00/agentmemory](https://github.com/rohitg00/agentmemory) | persist and recall context across sessions so the agent stops re-learning the same stack, bugs, and decisions | 43 | 33 |

| 3 | [api-design](skills/api-design/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | design a clear, consistent, and evolvable API contract before implementing it | 79 | 26 |

| 4 | [architecture-decision-records](skills/architecture-decision-records/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | record a significant technical decision, its context, and consequences as an ADR | 302 | 27 |

| 5 | [authentication](skills/authentication/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | implement or review authentication flows, sessions, tokens, and password handling securely | 60 | 26 |

| 6 | [authorization](skills/authorization/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | design or review access control so users can only do what they are permitted to | 60 | 26 |

| 7 | [bash](skills/bash/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review robust shell scripts that fail fast and handle paths and input safely | 108 | 26 |

| 8 | [brainstorming](skills/brainstorming/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | widen the option space then converge on an ambiguous problem before committing to one approach | 114 | 25 |

| 9 | [caching-strategies](skills/caching-strategies/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | add caching with the right layer, key design, invalidation, and consistency trade-offs | 107 | 26 |

| 10 | [chrome-devtools](skills/chrome-devtools/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | debug, inspect, automate, screenshot, or profile rendered browser behavior | 98 | 34 |

| 11 | [ci-cd](skills/ci-cd/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | design or improve a CI/CD pipeline for fast, reliable, automated build-test-deploy | 73 | 26 |

| 12 | [clean-architecture](skills/clean-architecture/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | structure an app so business logic is independent of frameworks, UI, and databases | 137 | 25 |

| 13 | [clean-codebase](skills/clean-codebase/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | clean up dead code, obsolete paths, and contradictions to keep a repo small and correct | 139 | 28 |

| 14 | [concurrency](skills/concurrency/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | write or review concurrent code that avoids races, deadlocks, and shared-state bugs | 81 | 26 |

| 15 | [cpp](skills/cpp/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review modern C++ with RAII, smart pointers, and value semantics | 235 | 26 |

| 16 | [critique](skills/critique/SKILL.md) | [pbakaus/impeccable](https://github.com/pbakaus/impeccable) | give structured, specific design critique with prioritized, actionable fixes | 126 | 27 |

| 17 | [csharp](skills/csharp/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review modern, idiomatic C# with async, nullable reference types, and clean structure | 87 | 27 |

| 18 | [database-migrations](skills/database-migrations/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | write and apply schema migrations safely without downtime or data loss | 273 | 25 |

| 19 | [dependency-injection](skills/dependency-injection/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | decouple components by injecting their dependencies instead of constructing them inline | 137 | 26 |

| 20 | [design-patterns](skills/design-patterns/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | apply a design pattern to a real problem without over-engineering the solution | 137 | 27 |

| 21 | [dispatching-parallel-agents](skills/dispatching-parallel-agents/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | split independent research, debugging, or coding tasks across isolated agents | 183 | 34 |

| 22 | [docker-compose](skills/docker-compose/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | define multi-service local and test environments with Docker Compose reliably | 605 | 26 |

| 23 | [domain-driven-design](skills/domain-driven-design/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | model a complex domain with a shared language, bounded contexts, and clear aggregates | 50 | 26 |

| 24 | [drizzle-orm](skills/drizzle-orm/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | define type-safe Drizzle schemas, migrations, and queries with full TypeScript inference | 306 | 26 |

| 25 | [duckdb-query](skills/duckdb-query/SKILL.md) | [duckdb/duckdb-skills](https://github.com/duckdb/duckdb-skills) | run in-process analytical queries over CSV, Parquet, and JSON with DuckDB | 155 | 26 |

| 26 | [error-handling](skills/error-handling/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | design error handling so failures are explicit, recoverable, and never silently swallowed | 94 | 26 |

| 27 | [event-driven-architecture](skills/event-driven-architecture/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | design systems around events and messages with reliable, decoupled processing | 62 | 26 |

| 28 | [executing-plans](skills/executing-plans/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | execute written implementation plans with task checkpoints, verification, and blocker handling | 71 | 32 |

| 29 | [extract-design-system](skills/extract-design-system/SKILL.md) | [arvindrk/extract-design-system](https://github.com/arvindrk/extract-design-system) | recover tokens, components, and patterns from an existing codebase into a documented system | 46 | 26 |

| 30 | [find-skills](skills/find-skills/SKILL.md) | [vercel-labs/skills](https://github.com/vercel-labs/skills) | find, compare, install, update, or remove agent skills from skills.sh or a source repo | 143 | 36 |

| 31 | [finishing-a-development-branch](skills/finishing-a-development-branch/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | verify completed work and choose commit, PR, merge, leave-as-is, or cleanup flow | 252 | 31 |

| 32 | [frontend-design](skills/frontend-design/SKILL.md) | [anthropics/skills](https://github.com/anthropics/skills) | build or reshape UI with distinctive, intentional visual design instead of generic defaults | 30 | 26 |

| 33 | [git-bisect](skills/git-bisect/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | find the commit that introduced a bug with a binary search over history | 142 | 25 |

| 34 | [git-commit](skills/git-commit/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | create conventional commits from the actual diff with logical staging and message analysis | 125 | 36 |

| 35 | [git-rebase](skills/git-rebase/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | clean up or reorder commits with rebase while keeping history safe and reviewable | 142 | 26 |

| 36 | [github-actions](skills/github-actions/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | write or review GitHub Actions workflows that are fast, secure, and maintainable | 254 | 26 |

| 37 | [go](skills/go/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review idiomatic Go with explicit errors, clear concurrency, and small interfaces | 287 | 26 |

| 38 | [graphql](skills/graphql/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | design or review GraphQL schemas and resolvers with safe, efficient data access | 1930 | 26 |

| 39 | [grill-me](skills/grill-me/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | pressure-test your own reasoning or plan, attacking the weakest assumptions first | 6 | 26 |

| 40 | [grill-with-docs](skills/grill-with-docs/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | verify claims and API usage against fetched official docs instead of memory | 6 | 26 |

| 41 | [handoff](skills/handoff/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | write a handoff so another session or agent resumes without context loss | 11 | 26 |

| 42 | [improve-codebase-architecture](skills/improve-codebase-architecture/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | propose high-leverage structural improvements and sequence them as safe steps | 42 | 26 |

| 43 | [input-validation](skills/input-validation/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | validate and sanitize untrusted input at boundaries to prevent bad data and attacks | 685 | 26 |

| 44 | [java](skills/java/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | write or review modern, idiomatic Java with immutability, clear types, and clean structure | 787 | 27 |

| 45 | [karpathy-guidelines](skills/karpathy-guidelines/SKILL.md) | [multica-ai/andrej-karpathy-skills](https://github.com/multica-ai/andrej-karpathy-skills) | avoid overcomplication, make surgical changes, surface assumptions, and define verifiable success criteria | 47 | 47 |

| 46 | [kotlin](skills/kotlin/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review idiomatic Kotlin with null safety, immutability, and concise expressions | 412 | 26 |

| 47 | [load-testing](skills/load-testing/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | measure system behavior under load to find limits, bottlenecks, and regressions | 107 | 26 |

| 48 | [merge-conflict-resolution](skills/merge-conflict-resolution/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | resolve git merge or rebase conflicts correctly without losing intended changes | 9 | 26 |

| 49 | [mocking](skills/mocking/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | use test doubles correctly — mock true boundaries, not the code under test | 147 | 26 |

| 50 | [multi-stage-dockerfile](skills/multi-stage-dockerfile/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | create or review optimized multi-stage Dockerfiles for smaller, safer application images | 47 | 32 |

| 51 | [next-best-practices](skills/next-best-practices/SKILL.md) | [vercel-labs/next-skills](https://github.com/vercel-labs/next-skills) | build Next.js App Router apps with correct conventions, RSC boundaries, and data flow | 39 | 26 |

| 52 | [next-cache-components](skills/next-cache-components/SKILL.md) | [vercel-labs/next-skills](https://github.com/vercel-labs/next-skills) | apply Next.js caching with use cache, cacheLife, cacheTag, PPR, and revalidation | 39 | 26 |

| 53 | [nodejs](skills/nodejs/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | write or review Node.js backends with correct async, error handling, and resource limits | 35 | 26 |

| 54 | [observability](skills/observability/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | instrument a system with logs, metrics, and traces to understand it in production | 55 | 26 |

| 55 | [php](skills/php/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review modern, typed PHP with strict types, clear structure, and safe data handling | 102 | 26 |

| 56 | [playwright-best-practices](skills/playwright-best-practices/SKILL.md) | [currents-dev/playwright-best-practices-skill](https://github.com/currents-dev/playwright-best-practices-skill) | write resilient Playwright tests with stable selectors, fixtures, parallelism, and CI | 261 | 26 |

| 57 | [playwright-generate-test](skills/playwright-generate-test/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | generate Playwright tests from observed UI scenarios and iterate until they pass | 18 | 18 |

| 58 | [postgresql-optimization](skills/postgresql-optimization/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | improve PostgreSQL schema, queries, indexes, and advanced Postgres feature usage | 405 | 33 |

| 59 | [property-based-testing](skills/property-based-testing/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | test invariants over generated inputs instead of a few hand-picked examples | 325 | 26 |

| 60 | [python](skills/python/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | write or review idiomatic, typed, well-structured Python that is easy to test and maintain | 265 | 27 |

| 61 | [rate-limiting](skills/rate-limiting/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | protect a service with rate limiting and backpressure without harming legitimate users | 79 | 26 |

| 62 | [reactjs](skills/reactjs/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | write or review React components with correct hooks, state, effects, and rendering | 235 | 26 |

| 63 | [receiving-code-review](skills/receiving-code-review/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | handle review feedback by understanding, verifying, implementing, or pushing back with evidence | 214 | 32 |

| 64 | [refactor](skills/refactor/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | improve code structure, types, and maintainability while preserving external behavior | 646 | 34 |

| 65 | [requesting-code-review](skills/requesting-code-review/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | prepare completed work so a reviewer can evaluate and verify it quickly | 76 | 26 |

| 66 | [research](skills/research/SKILL.md) | [lingzhi227/agent-research-skills](https://github.com/lingzhi227/agent-research-skills) | run a systematic literature review and synthesize sourced, well-reasoned findings | 182 | 30 |

| 67 | [rest-api-design](skills/rest-api-design/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | design RESTful HTTP APIs with correct resources, methods, status codes, and pagination | 707 | 26 |

| 68 | [ruby](skills/ruby/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review idiomatic, readable Ruby with clear objects and expressive methods | 110 | 26 |

| 69 | [rust](skills/rust/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review idiomatic Rust with sound ownership, error handling, and zero-cost abstractions | 108 | 27 |

| 70 | [secrets-management](skills/secrets-management/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | handle credentials, keys, and tokens without leaking them into code, logs, or history | 275 | 26 |

| 71 | [security-review](skills/security-review/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | review code or a design for security issues across the OWASP Top 10 and common pitfalls | 759 | 26 |

| 72 | [shadcn](skills/shadcn/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | add, customize, and extend shadcn/ui components with correct Tailwind and theming | 1122 | 26 |

| 73 | [skills-cli](skills/skills-cli/SKILL.md) | [xixu-me/skills](https://github.com/xixu-me/skills) | discover, install, list, check, update, remove, back up, restore, sync, or initialize Agent Skills with CLI commands | 282 | 39 |

| 74 | [solid-principles](skills/solid-principles/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | apply SOLID principles to make object-oriented code flexible and maintainable | 137 | 27 |

| 75 | [sql](skills/sql/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | write or review correct, set-based SQL with safe parameters and sensible indexing | 165 | 26 |

| 76 | [state-management](skills/state-management/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | choose and structure client state so data stays consistent and predictable | 108 | 26 |

| 77 | [structured-logging](skills/structured-logging/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | emit structured, queryable logs with the right levels, context, and no sensitive data | 36 | 26 |

| 78 | [subagent-driven-development](skills/subagent-driven-development/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | orchestrate specialized subagents across distinct parts of one larger task | 335 | 26 |

| 79 | [swift](skills/swift/SKILL.md) | [github/awesome-copilot](https://github.com/github/awesome-copilot) | write or review idiomatic Swift with value types, optionals, and safe concurrency | 419 | 26 |

| 80 | [systematic-debugging](skills/systematic-debugging/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | find a bug's true cause with a hypothesis-and-test loop before editing | 220 | 25 |

| 81 | [tailwind-design-system](skills/tailwind-design-system/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | implement a Tailwind design system with tokens, variants, and consistent components | 141 | 26 |

| 82 | [teach](skills/teach/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | explain code or a concept at the right depth for the asker, with real examples | 82 | 25 |

| 83 | [test-driven-development](skills/test-driven-development/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | drive changes with a failing-test-first TDD loop, then refactor | 279 | 25 |

| 84 | [threat-modeling](skills/threat-modeling/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | systematically identify threats to a system and decide how to mitigate them | 50 | 25 |

| 85 | [to-issues](skills/to-issues/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | break plans or PRDs into independently grabbable AFK/HITL vertical-slice issues | 84 | 34 |

| 86 | [to-prd](skills/to-prd/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | synthesize current conversation and repo context into a product requirements document | 77 | 34 |

| 87 | [turborepo](skills/turborepo/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | configure a Turborepo monorepo with task pipelines, caching, and affected-only runs | 1498 | 26 |

| 88 | [typescript](skills/typescript/SKILL.md) | [bobmatnyc/claude-mpm-skills](https://github.com/bobmatnyc/claude-mpm-skills) | write or review TypeScript that maximizes type safety without fighting the compiler | 212 | 26 |

| 89 | [typescript-advanced-types](skills/typescript-advanced-types/SKILL.md) | [wshobson/agents](https://github.com/wshobson/agents) | model complex APIs with discriminated unions, conditional, and template literal types | 235 | 26 |

| 90 | [understand-codebase](skills/understand-codebase/SKILL.md) | [Lum1104/Understand-Anything](https://github.com/Lum1104/Understand-Anything) | map an unfamiliar codebase's structure, dependencies, and business logic into a searchable knowledge graph | 258 | 33 |

| 91 | [using-git-worktrees](skills/using-git-worktrees/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | isolate feature work in an existing or new git worktree without disrupting the current checkout | 216 | 34 |

| 92 | [vercel-composition-patterns](skills/vercel-composition-patterns/SKILL.md) | [vercel-labs/agent-skills](https://github.com/vercel-labs/agent-skills) | design composable React component APIs that scale without boolean prop sprawl | 65 | 26 |

| 93 | [vercel-react-best-practices](skills/vercel-react-best-practices/SKILL.md) | [vercel-labs/agent-skills](https://github.com/vercel-labs/agent-skills) | write or review React/Next.js for performance: waterfalls, re-renders, bundle size | 120 | 26 |

| 94 | [verification-before-completion](skills/verification-before-completion/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | require fresh evidence before claiming work is complete, fixed, passing, or ready | 140 | 38 |

| 95 | [watch-video](skills/watch-video/SKILL.md) | [bradautomates/claude-video](https://github.com/bradautomates/claude-video) | answer questions about a video URL or local file from extracted frames and a timestamped transcript | 123 | 31 |

| 96 | [web-design-guidelines](skills/web-design-guidelines/SKILL.md) | [vercel-labs/agent-skills](https://github.com/vercel-labs/agent-skills) | review frontend design, UX, accessibility, and visual polish against practical interface guidelines | 40 | 35 |

| 97 | [webapp-testing](skills/webapp-testing/SKILL.md) | [anthropics/skills](https://github.com/anthropics/skills) | test a web app across unit, integration, and e2e at the cheapest honest layer | 74 | 25 |

| 98 | [write-a-skill](skills/write-a-skill/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | create compact agent skills with correct frontmatter, triggers, structure, and validation | 118 | 33 |

| 99 | [writing-plans](skills/writing-plans/SKILL.md) | [obra/superpowers](https://github.com/obra/superpowers) | write a structured, verifiable implementation plan before a complex task | 116 | 26 |

| 100 | [zoom-out](skills/zoom-out/SKILL.md) | [mattpocock/skills](https://github.com/mattpocock/skills) | map unfamiliar code one abstraction up before choosing the next implementation action | 8 | 8 |