Agent skills you can check before you install
Public SKILL.md skills from GitHub repositories with 50+ stars and from the vendors themselves, scanned and scored. Install any of them with one command in Claude Code, Cursor, Codex, GitHub Copilot or Gemini CLI.
48,622 skills from 2,355 repositories · updated 10 hours ago
48,622 skills
- broken-link-checkernowork-studio/notfair-pluginScans a website to find broken links (404s, 500s). Crawls internal pages, identifies broken outbound links, and reports source pages for easy fixing. Use this when the user asks to "check for broken links", "find 404s", "audit my links", or "is my site healthy".BrowserNo warnings★ 4.1K↓ —
- paid-ads-integrationsnowork-studio/notfair-pluginDiscover, connect, and verify NotFair paid-ad integrations and their actual capabilities. Use when asked to connect an ad account, configure an ads MCP, check available tools, troubleshoot access, or determine whether NotFair can read or change a platform.MarketingNo warnings★ 4.1K↓ —
- submission-checklistforyourhealth111-pixel/Vibe-SkillsStage-based submission checklists for papers/reports: pre-submission, submission, revision/rebuttal, camera-ready. Includes templates (cover letter, rebuttal matrix) and quality gates.OtherNo warnings★ 3.8K↓ —
- cleanup-codejeremylongshore/tons-of-skills-marketplaceComprehensive codebase cleanup across 11 quality dimensions: dead code, duplication, weak types, circular deps, defensive cruft, legacy code, AI slop, type consolidation, security, performance, and async patterns. Analyzes code with confidence scoring and verifies changes with build/test gates. Use when codebase has accumulated tech debt, after major feature work, before releases, or when code quality metrics are declining. Trigger with "/cleanup-code-code", "clean up the codebase", "remove dead code", "fix code quality".EngineeringNo warnings★ 2.9K↓ —
- hex-cost-tuningjeremylongshore/tons-of-skills-marketplaceOptimize Hex costs through tier selection, sampling, and usage monitoring. Use when analyzing Hex billing, reducing API costs, or implementing usage monitoring and budget alerts. Trigger with phrases like "hex cost", "hex billing", "reduce hex costs", "hex pricing", "hex expensive", "hex budget".EngineeringNo warnings★ 2.9K↓ —
- gsd:new-milestonedavepoon/buildwithclaudeStart a new milestone cycle — update PROJECT.md and route to requirementsPlanningNo warnings★ 3.7K↓ —
- api-contractjeremylongshore/tons-of-skills-marketplaceConfigure this skill should be used when the user asks about "API contract", "api-contract.md", "shared interface", "TypeScript interfaces", "request response schemas", "endpoint design", or needs guidance on designing contracts that coordinate backend and frontend agents. Use when building or modifying API endpoints. Trigger with phrases like 'create API', 'design endpoint', or 'API scaffold'.LegalNo warnings★ 2.9K↓ —
- adobe-cost-tuningjeremylongshore/tons-of-skills-marketplaceReduce Adobe integration spend using contract, invoice, usage, queue, storage, and retry evidence instead of invented per-call prices. Use when the task requires adobe workload cost and waste review. Trigger with "reduce Adobe cost", "Adobe spend review", or "PDF transaction budget".DocumentsNo warnings★ 2.9K↓ —
- google-ads-auditnowork-studio/notfair-pluginGoogle Ads account audit and business context setup. Use for account-health audits and business-context setup. Trigger on "audit my ads", "ads audit", "set up my ads", "onboard", "account overview", "how's my account", "ads health check", "what should I fix in my ads", or when the user is new to NotFair and hasn't run an audit before.MarketingNo warnings★ 4.1K↓ —
- paid-ads-reviewnowork-studio/notfair-pluginProduce a read-only, evidence-based paid-media performance review across connected platforms or supplied exports. Use for weekly or monthly reports, scorecards, performance, CPA, ROAS, CTR, spend trends, pacing, or conversion-tracking health.MarketingNo warnings★ 4.1K↓ —
- meta-ads-auditnowork-studio/notfair-pluginMeta Ads (Facebook + Instagram) account audit and business context setup. Use for account-health audits and business-context setup. Trigger on "audit my Meta ads", "audit my Facebook ads", "Meta ads audit", "set up my Meta ads", "onboard Meta", "Meta account overview", "how's my Meta account", "Meta health check", "what should I fix in my Facebook ads", or when the user is new to NotFair Meta and hasn't run an audit before.MarketingNo warnings★ 4.1K↓ —
- paid-ads-amazonnowork-studio/notfair-pluginPlan and review Amazon Ads with margin-aware ACoS, product, and search-term guardrails. Use for Amazon advertising, Sponsored Products, Sponsored Brands, Sponsored Display, ASIN targeting, Amazon ACoS, or Amazon Ads performance exports.MarketingNo warnings★ 4.1K↓ —
- benchmark-checklistbacknotprop/pstackVet a perf measurement (limiter, tuning, limits, errors, repeatability, relevance, and whether the work happened) before you report or act on it. Use when you run a benchmark or report a speedup or regression you measured.OtherNo warnings★ 3.3K↓ —
- maintain-verification-skillbacknotprop/pstackPeriodic pass that keeps a project's verification skill and feature map honest: parallel source readers per feature, one live session driving every feature, at most one PR of proven corrections. Use for /maintain-verification-skill or "audit the verify skill".OtherNo warnings★ 3.3K↓ —
- attio-install-authjeremylongshore/tons-of-skills-marketplaceChoose and configure Attio REST authentication for a single workspace or multi-workspace OAuth app, including least-privilege scopes and a read-only verification. Use when connecting a service to Attio. Trigger with "Attio auth", "Attio API key", or "Attio OAuth setup".EngineeringNo warnings★ 2.9K↓ —
- paid-ads-xnowork-studio/notfair-pluginAudit, diagnose, and safely operate connected X Ads (Twitter Ads) accounts through the NotFair MCP. Use for X Ads performance, campaign or line-item analysis, spend, conversions, targeting, promoted posts, audiences, budgets, bids, creative, campaign setup, or approved X Ads changes.MarketingNo warnings★ 4.1K↓ —
- modern-pythontrailofbits/skillsConfigures Python projects with modern tooling (uv, ruff, ty). Use when creating projects, writing standalone scripts, or migrating from pip/Poetry/mypy/black.EngineeringNo warnings★ 7.9K↓ —
- audit-clerk-skillclerk/skillsAudits the bundled `clerk-cli` skill against the Clerk CLI source tree and proposes or applies updates. Use when the user says "audit the clerk-cli skill", "update the clerk-cli skill", "check clerk-cli against the CLI source", "resync clerk-cli skill", "run audit-clerk-skill", or after Clerk CLI commands, flags, or agent-mode behavior change.OfficialEngineeringNo warnings★ 89↓ —
- clerk-testingclerk/skillsE2E testing for Clerk apps. Use with Playwright or Cypress for auth flow tests.OfficialTestingNo warnings★ 89↓ —
- principle-subtract-before-you-addbacknotprop/pstackApply when sequencing an addition, refactor, or rewrite. Remove dead code, redundant validators, and stub references first, then build on the simpler base.EngineeringNo warnings★ 3.3K↓ —Also in 1 other repo
- negotiatejeremylongshore/tons-of-skills-marketplaceUse when preparing clause-linked contract counterproposals, fallback positions, or a negotiation email draft from supplied terms and commercial priorities. Trigger with /negotiate or generate counter-proposals for this contract.LegalNo warnings★ 2.9K↓ —
- attio-sdk-patternsjeremylongshore/tons-of-skills-marketplaceBuild a typed Attio REST client with tenant-aware tokens, endpoint-specific pagination, structured errors, bounded retries, and contract tests while distinguishing it from the Attio App SDK. Use when creating or refactoring Attio integration code. Trigger with "Attio SDK", "Attio client wrapper", or "typed Attio API".TestingNo warnings★ 2.9K↓ —
- managing-python-releaseskajisho5/ffmpeg-skillManages Python library releases including semantic versioning, changelog maintenance (Keep a Changelog format), release automation with GitHub Actions, and deprecation workflows. Use when planning releases, writing changelogs, automating release pipelines, or communicating breaking changes.EngineeringNo warnings★ 4.2K↓ —
- create-formal-verification-skillbacknotprop/pstackGenerate a project-local skill that formally verifies the code where a bug costs the most and tests reach the least, in any language, with whichever verification tool fits. Use for /create-formal-verification-skill, "model-check this race", "prove this invariant", or when concurrency, retries, state machines, parsers, or unsafe code need more than tests.TestingNo warnings★ 3.3K↓ —
spec-writing
jeremylongshore/tons-of-skills-marketplace
WritingUpdated 20 hours ago
From the author
Execute this skill should be used when the user asks about "writing specs", "specs.md format", "how to write specifications", "sprint requirements", "testing configuration", "scope definition", or needs guidance on creating effective sprint specifications for agentic development. Use when appropriate context detected. Trigger with relevant phrases based on skill purpose.
Install
npx skills add jeremylongshore/tons-of-skills-marketplace --skill spec-writing -a claude-code
Installs to .claude/skills/spec-writing/ · Each command fetches the skill straight from GitHub with the open skills CLI.
Download .zip
Byte-identical to the scanned commit, with the repository’s licence and a SOURCE.txt.
What it can touch
Instructions onlyNo network use seenLicence: MIT
Safety checks on SKILL.md
No warnings.
Why 90
Security100
Provenance82
Maintenance100
Licence100
Adoption55
Files (4)
- SKILL.md
- references/errors.md
- references/examples.md
- references/testing-configuration.md