api-and-interface-design

We split this skill into the rules it gives an agent

6 rules. 5 are common, 0 are distinctive, and 1 is very specific to this project.

• 5

  Common

  Most of the 63 edited versions we read keep these.

• 0

  Distinctive

  This author's own choices. Worth a look.

• 1

  Very specific

  Tied to their project's names, files or tools. Probably skip.

No licence file, so all rights are reserved — read it at the source. We count its rules but don't quote them. Read them on GitHub.

“Common” is measured: kept by at least 6 in 10 of the 63 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

• Other versions67 projects use a version of this.

  Word for word · 0

  None found.

  Edited · 56

  1. addyosmani/agent-skills★ 112k63% same
  2. ollaya-dev/ollaya★ 1.4k63% same
  3. rizqinrr/viserys-agent★ 55663% same
  4. shashankswe2020-ux/whoop-mcp★ 17497% same
  5. vinvcn/addyosmani-agent-skills-zh★ 4641% same
  6. jmxt3/gitscape.ai★ 3397% same
  7. sampleXbro/agentsmesh★ 2497% same
  8. jaskirat1616/grok-skills★ 2263% same
  9. JPeetz/agent-skills★ 1471% same
  10. HK-hub/AgentSkills★ 697% same

  46 more not listed

  Wrote their own version · 11

  1. drvoss/everything-copilot-cli★ 49same name
  2. ddddjaak/ae-skills★ 4same name
  3. bnalwalid/walidforge-skills★ 2same name
  4. codexskills/agent-forge★ 2same name
  5. GuillemRoca/agent-skills-android★ 2same name
  6. GodMaking/makecrew★ 1same name
  7. iancleary/skills★ 1same name
  8. juandelossantos/another-agent-skills★ 1same name
  9. agent-packs/registry★ 0same name
  10. subhash-arabhi/saas-playbook★ 0same name

  1 more not listed

  How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.

• Used alongsideProjects with it also use constraint-driven-development, code-simplification and 6 more.

  Other files people use alongside this one.

  How we pick theseFiles found in the same public projects as a version of this one, more often than they turn up anywhere else. Each project counts once, large collections count for less, and this file's own repository is left out.

  • MrCipherSmithSkill

    constraint-driven-development

    Use when a project needs a persistent, measurable quality bar — starting a project without documented standards, 'set up constraints', or when coverage/perf/a11y thresholds get re-debated per-PR. Produces CONSTRAINTS.md with enforceable numbers, ratchets, and a guard against silent weakening. NOT for throwaway prototypes or a one-off CI setup.

    Also in 14 projects that use this

  • HK-hubSkill

    code-simplification

    Simplifies code for clarity. Use when refactoring code for clarity without changing behavior. Use when code works but is harder to read, maintain, or extend than it should be. Use when reviewing code that has accumulated unnecessary complexity.

    Also in 46 projects that use this

  • skytiger6724Skill

    prioritize-assumptions

    Prioritize assumptions using an Impact × Risk matrix and suggest experiments for each. Use when triaging a list of assumptions, deciding what to test first, or applying the assumption prioritization canvas.

    Also in 4 projects that use this

  • skytiger6724Skill

    brainstorm-experiments-new

    Design lean startup experiments (pretotypes) for a new product. Creates XYZ hypotheses and suggests low-effort validation methods like landing pages, explainer videos, and pre-orders. Use when validating a new product idea, creating pretotypes, or testing market demand.

    Also in 4 projects that use this

  • seikaikyoSkill

    interview-me

    需求不明時的意圖萃取訪談：一次一題、每題附上自己的猜測、聽出「真正想要 vs 覺得應該要」，直到能預測使用者反應（約 95% 信心）才動工。適用：需求缺少對象 / 動機 / 成功標準 / 約束，或使用者點名「訪談我」「先確認一下」「我們確定嗎」。明確自足的指示、純資訊查詢、機械性操作不適用。

    Also in 34 projects that use this

  • launchapp-devSkill

    interview-script

    Create a structured user interview script with warm-up, core exploration, and wrap-up sections. Use when preparing for user research interviews to ensure consistent, insightful conversations.

    Also in 4 projects that use this

  • +2 more from skytiger6724
• In this repository59 other files it gives its agents.

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  • minecraft-modpack-serverSkill
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  • native-mcpSkill
  • docxSkill
  • factual-disciplineSkill
  • hermes-maintenanceSkill
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  • linkedin-writingSkill
  • memory-disciplineSkill
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  • pdfSkill
  • retrieval-benchmarkingSkill
  • session-librarianSkill
  • xlsxSkill
  • grounded-citationsSkill
  • claude-code-windows-hooksSkill
  • githubSkill
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  • context-engineeringSkill
  • deprecation-and-migrationSkill
  • documentation-and-adrsSkill
  • doubt-driven-developmentSkill
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  • source-driven-developmentSkill
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  • systems-engineeringSkill