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.
46,700 skills from 2,243 repositories · updated 2 hours ago
3,310 skills
- api-test-postmannaodeng/awesome-qa-skillsUse this skill when you need to design Postman collections, environments, scripts, and Newman-ready API regression plans; triggers include Postman API testing, API testing, and api-test-postman.TestingNo warnings★ 283↓ —
- testing-debuggingberiberikix/zephyr-agent-skillsTesting and debugging for Zephyr RTOS. Covers the Ztest framework for unit and integration tests, the Twister test runner for automated HIL/SIM validation, and advanced tracing/debugging techniques (SystemView, Thread Analyzer, Stack analysis). Trigger when writing unit tests, setting up CI/CD pipelines, or analyzing system performance and latency.TestingNo warnings★ 72↓ —
- test-generatorTibsfox/gsd-skill-creatorGenerates test cases for functions and components. Use when writing tests or creating test suites.TestingNo warnings★ 71↓ —
- test-and-measurementTibsfox/gsd-skill-creatorBench instruments and measurement techniques for electronics — digital multimeter, oscilloscope, logic analyzer, spectrum analyzer, function generator, power supply, and their proper use. Covers probing technique, ground loops, loading effects, trigger modes, FFT mode pitfalls, signal integrity, noise budget analysis, and debugging workflows from "it doesn't work" to "here is the failure mechanism." Use when measuring, debugging, or characterizing any electronic circuit or firmware-hardware interaction.TestingNo warnings★ 71↓ —
- time-series-analysisTibsfox/gsd-skill-creatorAnalyzing and forecasting data ordered in time. Covers stationarity and differencing, autocorrelation (ACF and PACF), AR, MA, ARMA, and ARIMA models, the Box-Jenkins methodology, seasonality and SARIMA, forecasting with prediction intervals, and residual diagnostics including the Ljung-Box test. Use when data is indexed by time, when forecasting future values, when detecting trend or seasonality, or when checking whether residuals still carry structure.TestingNo warnings★ 71↓ —
- statistical-computingTibsfox/gsd-skill-creatorComputational tools and algorithms for statistical analysis. Covers simulation, resampling methods (bootstrap, permutation tests), Monte Carlo methods, random number generation, numerical optimization (Newton-Raphson, EM algorithm), cross-validation, and reproducible analysis workflows. Emphasizes the bootstrap revolution and the shift from formula-based to computation-based inference. Use when implementing statistical procedures, running simulations, bootstrapping confidence intervals, performing cross-validation, or building reproducible analysis pipelines.TestingNo warnings★ 71↓ —
- chaos-engineeringTibsfox/gsd-skill-creatorProvides chaos engineering best practices for resilience testing, fault injection, and game day planning. Use when designing resilience experiments, configuring chaos tools, planning game days, or when user mentions 'chaos engineering', 'resilience', 'litmus', 'game day', 'fault injection', 'chaos monkey', 'blast radius', 'steady state', 'failure mode'.TestingNo warnings★ 71↓ —
- self-healingpskoett/pskoett-ai-skillsActive runtime recovery for coding agents: when something breaks mid-task, diagnose the root cause, write a fix, VERIFY by re-running the broken thing, then file a `HEAL-` entry to `.learnings/HEALS.md` with proof. Use whenever a command, test, build, or lint fails or exits non-zero; on missing tooling, dependency/lockfile mismatch, wrong runtime version, venv or permission errors, port conflicts, dirty git state, or a missing `.env`; when the agent needs a helper or one-off script that doesn't exist yet; when an external API, tool, or MCP errors or rate-limits; or when a test flakes. Search `HEALS.md` by `Pattern-Key` first — most heals are recurrences, so increment `Recurrence-Count` instead of duplicating. Verify is mandatory: mark `pending-verify` honestly if sandboxed, `abandoned` if the fix can't be made to work. Pairs with `self-improvement` (which promotes recurring heals to durable memory) but owns the verify-before-persist discipline self-improvement doesn't.TestingNo warnings★ 324↓ —
- critical-readingTibsfox/gsd-skill-creatorAnalytical evaluation of texts for argument quality, author purpose, bias, credibility, and rhetorical strategy. Covers the distinction between comprehension and critique, argument analysis (claims, evidence, reasoning, warrants), rhetorical appeals (ethos, pathos, logos), bias identification (selection bias, confirmation bias, loaded language, omission), source credibility evaluation (CRAAP test, lateral reading), propaganda techniques, media literacy, and multi-text synthesis. Use when evaluating arguments, identifying bias, assessing source reliability, analyzing rhetoric, or synthesizing across multiple texts on the same topic.TestingNo warnings★ 71↓ —
- openstack-backupTibsfox/gsd-skill-creatorOpenStack backup operations skill for protecting cloud infrastructure through systematic backup strategies and disaster recovery procedures. Covers database backups (MariaDB full and incremental with mariabackup), configuration backups (globals.yml, inventory, Fernet keys), volume snapshots (Cinder LVM snapshots), image exports (Glance), instance snapshots (Nova), backup encryption (GPG/OpenSSL), retention policies (daily/weekly/monthly rotation), restore procedures (database point-in-time recovery, service rebuild), RPO/RTO planning, and disaster recovery drills. Use when planning backup strategy, scheduling automated backups, testing restore procedures, or executing disaster recovery.TestingNo warnings★ 71↓ —
- mcp-builderJasonxzWen/harness-hubLoad when a task needs MCP server design, build, review, testing, tool schema, resource, or prompt work; skip ordinary REST clients and non-MCP integrations.TestingNo warnings★ 71↓ —
- webapp-testingJasonxzWen/harness-hubLoad when a task needs one-off local web app inspection with Playwright, screenshots, console logs, or UI issue reproduction against a dev server; use e2e-testing for durable suites.TestingNo warnings★ 71↓ —
- preregistering-analysisK-Dense-AI/science-superpowersUse before running any confirmatory analysis or looking at outcome data, when testing a hypothesis, computing a p-value, or about to claim an effect - locks predictions and decision rules before results are seenTestingNo warnings★ 363↓ —
- presentation-generatornicepkg/ai-workflowGenerate interactive HTML presentations with neobrutalism styling, ASCII art decorations, and Agency brand colors. Outputs HTML (interactive with navigation), PNG (individual slides via Playwright), and PDF. References brand-agency skill for colors and typography. Use when creating presentations, slide decks, pitch materials, or visual summaries.TestingNo warnings★ 288↓ —
- optimizemarketcalls/vectorbt-backtesting-skillsOptimize strategy parameters using VectorBT. Tests parameter combinations and generates heatmaps.TestingNo warnings★ 211↓ —
- skill-coverage-gateTibsfox/gsd-skill-creatorUse when reviewing, shipping, or regression-testing a SKILL.md and you hold one or more captured trajectories where that skill was actually loaded. Translates the skill's instructions into behavior constraints, then reports which were EXERCISED (coverage) versus untested, and flags any that were in-scope but VIOLATED (compliance) — a cheap single-trajectory test-adequacy gate. It surfaces untested instructions rather than auto-blocking, and escalates fail-closed only when a violation touches shared repo state, never-surface memory, or self-modification. Complements skill-counterfactual-audit (which measures EFFECT) and skill-causal-curation (which measures contribution); this one asks ADEQUACY. Backed by the agent-skill-coverage metric (arxiv 2606.20659v2). Triggers on skill review, ship gating, and regression-testing a skill against its trajectories.TestingNo warnings★ 71↓ —
- cm-browsetody-agent/codymasterUse when you need visual QA, screenshots, or post-deploy smoke testing through a real browser with Playwright.TestingNo warnings★ 55↓ —
- windows-desktop-e2emturac/everything-openai-codexE2E testing for Windows native desktop apps (WPF, WinForms, Win32/MFC, Qt) using pywinauto and Windows UI Automation.TestingReview first★ 83↓ —
- ffuf-web-fuzzingMicrock/ordinary-claude-skillsExpert guidance for ffuf web fuzzing during penetration testing, including authenticated fuzzing with raw requests, auto-calibration, and result analysisTestingNo warnings★ 408↓ —
- cm-browsetody-agent/codymasterUse when you need visual QA, screenshots, or post-deploy smoke testing through a real browser with Playwright.TestingNo warnings★ 55↓ —
- pair-trade-screenernicepkg/ai-workflowStatistical arbitrage tool for identifying and analyzing pair trading opportunities. Detects cointegrated stock pairs within sectors, analyzes spread behavior, calculates z-scores, and provides entry/exit recommendations for market-neutral strategies. Use when user requests pair trading opportunities, statistical arbitrage screening, mean-reversion strategies, or market-neutral portfolio construction. Supports correlation analysis, cointegration testing, and spread backtesting.TestingNo warnings★ 288↓ —Also in 1 other repo
- cm-browsetody-agent/codymasterUse when you need visual QA, screenshots, or post-deploy smoke testing through a real browser with Playwright.TestingNo warnings★ 55↓ —
- codeck-exporthiyeshu/codeckInternal publisher module for /codeck. Exports deck to PDF or PPTX with post-export QA. User-facing export requests should enter through /codeck; this skill defines the export behavior.TestingReview first★ 199↓ —
- test-generatorTibsfox/gsd-skill-creatorGenerates test cases for functions and components. Use when writing tests or creating test suites.TestingNo warnings★ 71↓ —