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Claude skills and agent skills

Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.

Most stars first · from page 41Worked for most · soon
GitHubSkill

performance-review-writer

github/awesome-copilot/skills/performance-review-writer/SKILL.md

Draft performance reviews, self-assessments, peer reviews, and upward feedback in your own voice. Analyzes your contributions, emails, and meeting history via WorkIQ, then produces honest, impact-focused drafts using the STAR format. USE FOR: write my performance review, draft self-assessment, peer review, 360 feedback, annual review, mid-year review, upward feedback, write review for colleague, performance appraisal.

39k9d agoDiscuss
GitHubSkill

pester-migration

github/awesome-copilot/skills/pester-migration/SKILL.md

Pester migration skill for upgrading PowerShell Pester test suites across major versions — v3→v4, v4→v5, and v5→v6. Covers the Discovery/Run two-phase model, moving setup into BeforeAll, $PSScriptRoot vs $MyInvocation, mock changes (Assert-MockCalled → Should -Invoke, removed fall-through), Invoke-Pester parameters → PesterConfiguration, data-driven -ForEach/-TestCases, and the v6 breaking changes. Use when the user asks to upgrade, migrate, or modernize Pester tests, fix *.Tests.ps1 files that broke after bumping the Pester version, or convert legacy Should / Invoke-Pester syntax.

39k9d agoDiscuss
GitHubSkill

pester-should-migration

github/awesome-copilot/skills/pester-should-migration/SKILL.md

Experimental (preview) Pester skill for migrating classic Should -Be (v5) assertion syntax to the new Should-* (v6) assertions (note the hyphen, no space), e.g. `Should -Be` -> `Should-Be`, `Should -Not -Be` -> `Should-NotBe`. Tracks Pester 6, which is still a release candidate, so this guidance may change; verified against Pester 6.0.0-rc2. Use when converting Pester v5 assertions to Pester v6 Should-* operators, modernizing a Pester test suite, or when a user asks to migrate, convert, or rewrite `Should -...` calls in .Tests.ps1 / PowerShell files.

39k9d agoDiscuss
GitHubSkill

phoenix-evals

github/awesome-copilot/skills/phoenix-evals/SKILL.md

Build and run evaluators for AI/LLM applications using Phoenix.

39k9d agoDiscuss
GitHubSkill

phoenix-tracing

github/awesome-copilot/skills/phoenix-tracing/SKILL.md

OpenInference semantic conventions and instrumentation for Phoenix AI observability. Use when implementing LLM tracing, creating custom spans, or deploying to production.

39k9d agoDiscuss
GitHubSkill

php-mcp-server-generator

github/awesome-copilot/skills/php-mcp-server-generator/SKILL.md

Generate a complete PHP Model Context Protocol server project with tools, resources, prompts, and tests using the official PHP SDK

39k9d agoDiscuss
GitHubSkill

planning-oracle-to-postgres-migration-integration-testing

github/awesome-copilot/skills/planning-oracle-to-postgres-migration-integration-testing/SKILL.md

Creates an integration testing plan for .NET data access artifacts during Oracle-to-PostgreSQL database migrations. Analyzes a single project to identify repositories, DAOs, and service layers that interact with the database, then produces a structured testing plan. Use when planning integration test coverage for a migrated project, identifying which data access methods need tests, or preparing for Oracle-to-PostgreSQL migration validation.

39k9d agoDiscuss
GitHubSkill

plantuml-ascii

github/awesome-copilot/skills/plantuml-ascii/SKILL.md

Generate ASCII art diagrams using PlantUML text mode. Use when user asks to create ASCII diagrams, text-based diagrams, terminal-friendly diagrams, or mentions plantuml ascii, text diagram, ascii art diagram. Supports: Converting PlantUML diagrams to ASCII art, Creating sequence diagrams, class diagrams, flowcharts in ASCII format, Generating Unicode-enhanced ASCII art with -utxt flag

39k9d agoDiscuss
GitHubSkill

playwright-explore-website

github/awesome-copilot/skills/playwright-explore-website/SKILL.md

Website exploration for testing using Playwright MCP

39k9d agoDiscuss
GitHubSkill

playwright-generate-test

github/awesome-copilot/skills/playwright-generate-test/SKILL.md

Generate a Playwright test based on a scenario using Playwright MCP

39k9d agoDiscuss
GitHubSkill

poka-yoke

github/awesome-copilot/skills/poka-yoke/SKILL.md

Mistake-proof code so misuse cannot be expressed, rather than warning against it. Use when designing an interface, schema, or state machine and the user wants it hard to get wrong ("make invalid states unrepresentable", "so callers cannot screw it up", "type-safe API", "pit of success"); when auditing existing code for footguns ("what could bite us here", "what is easy to misuse", "poka-yoke this repo", "review this diff for ways to get it wrong"); or when a bug has recurred and the fix must close the class rather than the case ("make sure this never happens again", "this is the third time"). Especially for money, auth, permissions, deletion, migrations, and pipelines where failure is silent. Classifies every finding by what happens when the mistake occurs and how the device notices, which is what keeps it from collapsing into generic code review.

39k9d agoDiscuss
GitHubSkill

postgresql-code-review

github/awesome-copilot/skills/postgresql-code-review/SKILL.md

PostgreSQL-specific code review assistant focusing on PostgreSQL best practices, anti-patterns, and unique quality standards. Covers JSONB operations, array usage, custom types, schema design, function optimization, and PostgreSQL-exclusive security features like Row Level Security (RLS).

39k9d agoDiscuss
GitHubSkill

postgresql-optimization

github/awesome-copilot/skills/postgresql-optimization/SKILL.md

PostgreSQL-specific development assistant focusing on unique PostgreSQL features, advanced data types, and PostgreSQL-exclusive capabilities. Covers JSONB operations, array types, custom types, range/geometric types, full-text search, window functions, and PostgreSQL extensions ecosystem.

39k9d agoDiscuss
GitHubSkill

power-apps-code-app-scaffold

github/awesome-copilot/skills/power-apps-code-app-scaffold/SKILL.md

Scaffold a complete Power Apps Code App project with PAC CLI setup, SDK integration, and connector configuration

39k9d agoDiscuss
GitHubSkill

power-bi-dax-optimization

github/awesome-copilot/skills/power-bi-dax-optimization/SKILL.md

Comprehensive Power BI DAX formula optimization prompt for improving performance, readability, and maintainability of DAX calculations.

39k9d agoDiscuss
GitHubSkill

power-bi-model-design-review

github/awesome-copilot/skills/power-bi-model-design-review/SKILL.md

Comprehensive Power BI data model design review prompt for evaluating model architecture, relationships, and optimization opportunities.

39k9d agoDiscuss
GitHubSkill

powerbi-modeling

github/awesome-copilot/skills/powerbi-modeling/SKILL.md

Power BI semantic modeling assistant for building optimized data models. Use when working with Power BI semantic models, creating measures, designing star schemas, configuring relationships, implementing RLS, or optimizing model performance. Triggers on queries about DAX calculations, table relationships, dimension/fact table design, naming conventions, model documentation, cardinality, cross-filter direction, calculation groups, and data model best practices. Always connects to the active model first using power-bi-modeling MCP tools to understand the data structure before providing guidance.

39k9d agoDiscuss
GitHubSkill

power-bi-performance-troubleshooting

github/awesome-copilot/skills/power-bi-performance-troubleshooting/SKILL.md

Systematic Power BI performance troubleshooting prompt for identifying, diagnosing, and resolving performance issues in Power BI models, reports, and queries.

39k9d agoDiscuss
GitHubSkill

power-bi-report-design-consultation

github/awesome-copilot/skills/power-bi-report-design-consultation/SKILL.md

Power BI report visualization design prompt for creating effective, user-friendly, and accessible reports with optimal chart selection and layout design.

39k9d agoDiscuss
CLAUDE.md vs AGENTS.md

About skills

What is a Claude skill?

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.

How do I use one I find here?

Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.

What do the warnings mean?

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.

Which skills worked for people?

Open a skill to see its discussion. Reports from people and their agents are coming.