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.
29,591 skills from 1,220 repositories · updated 11 minutes ago
2,281 skills
- ab-test-analyzeririnabuht12-oss/marketing-skillsClaude skills for marketing: 49 free marketing skills for Claude Code and claude.ai (Google Ads, Meta Ads, SEO, AI visibility) + the Ryze Google Ads MCP / Meta Ads MCP: claude mcp add ryze --transport http https://connector.get-ryze.ai/mcpTestingNo warnings★ 5.6K↓ —
- eicar-testcisco-ai-defense/skill-scannerTest skill containing EICAR test file for malware detectionTestingNo warnings★ 2.6K↓ —
- contribute-preparejeremylongshore/tons-of-skills-marketplacePrepare an OSS contribution locally after a read-only contribution audit. Creates explicitly scoped candidate records, repository dossiers, worktrees, test evidence, and gate results, but never publishes to GitHub. Use when the user has selected an issue and asks to set up, research, implement, test, or draft the contribution. Trigger with "/contribute-prepare" or "prepare this contribution locally".TestingNo warnings★ 2.9K↓ —
- scenario-generatorArabelaTso/Skills-4-SEGenerate comprehensive test scenarios, user stories, and acceptance criteria from requirements and specifications. Use this skill when planning testing efforts, writing user stories, creating test cases, documenting acceptance criteria, exploring edge cases, designing test coverage, or translating requirements into actionable scenarios. Supports BDD (Given-When-Then), Gherkin syntax, user story format, and test case documentation.TestingNo warnings★ 258↓ —
- codedrobe-adapter-devCodeDrobe/skillsAdd, inspect, repair, or validate CodeDrobe Core adapters for Chromium/Electron AI desktop applications. Use when supporting a new app, updating Codex or WorkBuddy compatibility after an app release, discovering installation paths or CDP targets, selecting stable DOM landmarks, adding renderer profiles or transactional host settings, recording lastVerified versions, or writing adapter and real-renderer tests.TestingNo warnings★ 253↓ —
- technical-debt-analyzerArabelaTso/Skills-4-SEDetect and analyze areas with high maintenance cost, poor design, or accumulated technical debt. Use this skill when reviewing codebases for quality issues, planning refactoring efforts, conducting code audits, assessing project health, identifying maintenance hotspots, or prioritizing technical improvements. Analyzes code smells, architectural issues, dependency problems, test quality, documentation gaps, and provides actionable recommendations with priority rankings.TestingNo warnings★ 258↓ —
- python-regression-test-generatorArabelaTso/Skills-4-SEAutomatically generates regression tests for Python codebases by analyzing changes between old and new code versions and their existing tests. Migrates tests to work with new code, generates tests for new functionality, and creates mocks for external dependencies. Supports unittest and pytest frameworks. Use when refactoring code, adding features, or ensuring backward compatibility.TestingNo warnings★ 258↓ —
- skill-creatorjeremylongshore/tons-of-skills-marketplaceCreate production-grade agent skills aligned with the 2026 AgentSkills.io spec and Anthropic best practices (2026). Also validates existing skills against the Intent Solutions 100-point rubric. Use when building, testing, validating, or optimizing Claude Code skills. Trigger with "/skill-creator", "create a skill", "validate my skill", or "check skill quality". Make sure to use this skill whenever creating a new skill, slash command, or agent capability.TestingNo warnings★ 2.9K↓ —
- adk-engineerjeremylongshore/tons-of-skills-marketplaceExecute software engineer specializing in creating production-ready ADK agents with best practices, code structure, testing, and deployment automation. Use when asked to "build ADK agent", "create agent code", or "engineer ADK application". Trigger with relevant phrases based on skill purpose.TestingNo warnings★ 2.9K↓ —
- TestCafe TestingPramodDutta/qaskillsComprehensive TestCafe end-to-end testing skill for writing reliable browser automation tests in JavaScript and TypeScript without WebDriver dependencies, featuring smart assertions, automatic waiting, and parallel execution.TestingNo warnings★ 240↓ —
- migrate-xunit-to-mstestdotnet/skillsConvert .NET tests from xUnit.net v2/v3 to MSTest v4 while preserving VSTest or MTP. Use for replacing xunit packages, Fact/Theory/InlineData/MemberData, assertions, IClassFixture/ICollectionFixture, ITestOutputHelper, TestContext cancellation, traits/Owner, skips, timeouts, and xUnit parallelization. Also use when a "convert xUnit to MSTest" request may already be migrated: inspect and report the no-op. Do not use for xUnit v2-to-v3, MSTest upgrades, NUnit/TUnit conversion, or runner-only VSTest-to-MTP migration.TestingReview first★ 5.7K↓ —
- spring-data-neo4jgiuseppe-trisciuoglio/developer-kitProvides Spring Data Neo4j integration patterns for Spring Boot applications. Use when you need to work with a graph database, Neo4j nodes and relationships, Cypher queries, or Spring Data Neo4j. Creates node entities with @Node annotation, defines relationships with @Relationship, writes Cypher queries using @Query, configures imperative and reactive Neo4j repositories, implements graph traversal patterns, and sets up testing with embedded databases.TestingNo warnings★ 362↓ —
- unit-test-cachinggiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing Spring Cache annotations (@Cacheable, @CachePut, @CacheEvict). Generates test code that mocks cache managers, verifies cache hit/miss behavior, tests cache key generation with SpEL expressions, validates eviction strategies, and checks conditional caching scenarios. Triggers: caching tests, test Spring cache, mock cache, Spring Boot caching, cache hit/miss verification, @Cacheable testing.TestingNo warnings★ 362↓ —
- edge-case-generatorArabelaTso/Skills-4-SEAutomatically identify potential boundary and exception cases from requirements, specifications, or existing code, and generate comprehensive test cases targeting boundary conditions, edge cases, and uncommon scenarios. Use this skill when analyzing programs, code repositories, functions, or APIs to discover and test corner cases, null handling, overflow conditions, empty inputs, concurrent access patterns, and other exceptional scenarios that are often missed in standard testing.TestingNo warnings★ 258↓ —
- interval-guided-regression-test-updateArabelaTso/Skills-4-SEAutomatically updates regression tests based on interval analysis to maintain coverage of key program intervals. Use when code changes affect value ranges, conditionals, or control flow, and existing tests need updating to maintain interval coverage. Analyzes interval information from updated code, identifies coverage gaps, adjusts test inputs and assertions, removes redundant tests, and generates new tests for uncovered intervals. Supports Python, Java, JavaScript, and C/C++ with various test frameworks (pytest, JUnit, Jest, Google Test).TestingNo warnings★ 258↓ —
- unit-test-parameterizedgiuseppe-trisciuoglio/developer-kitProvides parameterized testing patterns with JUnit 5, generates data-driven unit tests using @ParameterizedTest, @ValueSource, @CsvSource, @MethodSource. Creates tests that run the same logic with multiple input values. Use when writing data-driven Java tests, multiple test cases from single method, or boundary value analysis.TestingNo warnings★ 362↓ —
- failure-oriented-instrumentationArabelaTso/Skills-4-SESelectively instruments code to capture runtime data for debugging failures and bugs. Use when investigating crashes, exceptions, unexpected behavior, test failures, or performance issues. Analyzes stack traces and error messages to identify suspicious code regions, then adds targeted logging, tracing, and assertions to capture variable values, execution paths, timing, and conditional branches. Supports Python, JavaScript/TypeScript, Java, and C/C++.TestingNo warnings★ 258↓ —
- unit-test-service-layergiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing service layer with Mockito. Creates isolated tests that mock repository calls, verify method invocations, test exception scenarios, and stub external API responses. Use when testing service behaviors and business logic without database or external services.TestingNo warnings★ 362↓ —
- turborepo-monorepogiuseppe-trisciuoglio/developer-kitProvides comprehensive Turborepo monorepo management guidance for TypeScript/JavaScript projects. Use when creating Turborepo workspaces, configuring turbo.json tasks, setting up Next.js/NestJS apps, managing test pipelines (Vitest/Jest), configuring CI/CD, implementing remote caching, or optimizing build performance in monoreposTestingNo warnings★ 362↓ —
- smell-checkZhen-Bo/smell-checkRuns a smell-first audit on a user-chosen path set: measures structure metrics, applies a named size profile, and reports code smells and test smells with evidence strength. Use for smell audit, code smell scan, whole-repo audit, tech debt scan, test smell check, maintainability audit, or duplication and nesting checks. Do not use for PR review, merge advice, implementing fixes, writing new features, or lint/format-only passes.TestingNo warnings★ 240↓ —
- coverageEncod3d-Sec/TORCHShow per-asset vuln-class coverage gaps for the active engagement so nothing in scope is skipped. Use when asked "coverage", "what haven't we tested", "test gaps", "are we thorough", or before calling an engagement done.TestingNo warnings★ 334↓ —
- hunt-idorEncod3d-Sec/TORCHIDOR / BOLA hunting - two-account methodology, identifier discovery and UUID leak chaining, the trusted-identifier test, GraphQL node and nested-object IDOR, cross-tenant escalation, write and delete operations. Bounded ID sampling, never range sweeps. Wiki-first, FIND schema output. Trigger on IDOR, BOLA, broken access control, object level authorization, cross-tenant, "read another user's data", "swap the id", or any API path or parameter carrying a numeric ID, UUID, or account identifier.TestingNo warnings★ 334↓ —
- swarm-advancedspencermarx/open-code-reviewAdvanced swarm orchestration patterns for research, development, testing, and complex distributed workflowsTestingNo warnings★ 380↓ —
- unit-test-controller-layergiuseppe-trisciuoglio/developer-kitProvides patterns for unit testing REST controllers using MockMvc and @WebMvcTest. Generates controller tests that validates request/response mapping, validation, exception handling, and HTTP status codes. Use when testing web layer endpoints in isolation for API endpoint testing, Spring MVC tests, mock HTTP requests, or controller layer unit tests.TestingNo warnings★ 362↓ —