Testing

19,993 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

mattpocock-skills

01

mattpocock/skills

Plugin Claude Code

Bundles 38 skills · 1,293 tokens together

Matt Pocock's agent skills for real engineering: grilling, spec/ticket flows, TDD, code review, domain modelling and more. Plug-and-play, not vibe coding.

not rated 315k +7.8k changed 7d ago A ✓ AI review tokens not measured original MIT

browser-use

02

browser-use/browser-use

Skill Claude CodeCodex

Direct browser control via CDP for web interaction: automation, scraping, testing, screenshots, and site/app work. Also covers hosted cloud browsers for AI agents: the browser-use Python library (Browser(usecloud=True)), Playwright, Puppeteer or any CDP client.

not rated 120k +542 changed 20d ago A Socket: passSnyk: warnSkillSpector: pass 57 tokens original MIT

playwright-cli

03

microsoft/playwright

Skill Claude Code ✓ vendor

Automate browser interactions, test web pages and work with Playwright tests.

not rated 99k +496 changed 18d ago A Socket: passSnyk: warnSkillSpector: warn 19 tokens original Apache-2.0

skill-release-gate

04

rohitg00/ai-engineering-from-scratch

Skill Claude CodeCodex

Evaluate an Agent Skill bundle for structural integrity, trigger quality, artifact improvement, script correctness, safety, installed-tree integrity, and target-host portability before release.

not rated 77k +1.3k yesterday A SkillSpector: pass 36 tokens original MIT

openai/openai-cookbook

Skill Codex ✓ vendor

Bootstrap a new realtime eval folder inside this cookbook repo by choosing the right harness from examples/evals/realtimeevals, scaffolding prompt/tools/data files, generating a useful README, and validating it with smoke, full eval, and test runs. Use when a user wants to start a new crawl, walk, or run realtime eval…

not rated 77k +92 today A Snyk: passSkillSpector: warn 76 tokens original MIT

visual-qa

06

code-yeongyu/oh-my-openagent

Skill Claude CodeCodex

Runs rigorous visual QA across web, terminal, and paginated surfaces: an Apple HIG-based checklist, paired light/dark captures at phone and desktop widths, screenshot evidence, and a per-item PASS/FAIL verdict. Use for any UI build or change, or when asked whether a page, component, or TUI looks right or follows the…

not rated 71k +228 changed 7d ago A SkillSpector: pass 78 tokens

python_lib

07

streamlit/streamlit

Cursor rule Cursor

Tips and guidelines specific to the development of the Streamlit Python library, not applicable to scripts and e2e tests.

not rated 46k +88 changed yesterday A 0 tokens original Apache-2.0

ifixai

08

ifixai-ai/iFixAi

Plugin Claude Code

Bundles 1 skill, 1 hook · 108 tokens together

Independent auditing for AI agents, open source. Claude investigates your agent, authors an iFixAi fixture from its setup, and audits it against the one question other tools skip: is it doing the job it's supposed to do, given your business rules and org structure? Adversarial depth, assurance discipline. Test any…

not rated 44k +4.3k changed 14d ago A tokens not measured original Apache-2.0

session-rag-eval

09

chatboxai/chatbox

Skill Claude CodeCodex

Run and debug Chatbox session attachment RAG model evaluation with synthetic and real long-file fixtures.

not rated 42k +51 8d ago A SkillSpector: pass 25 tokens GPL-3.0

cw-dogfood

10

Hmbown/Codewhale

Skill Claude CodeCodex

Use when a Codewhale change needs proving in the real product, or when asked to build/install/dogfood the local binaries: stamped release build, atomic install, fresh-shell verification, and the manual QA that gates cannot cover.

not rated 41k changed 1mo ago A ✓ AI review SkillSpector: warn 52 tokens original MIT

skill-test

11

Donchitos/Claude-Code-Game-Studios

Skill Claude Code needs its repo

Validate skill files for structural compliance and behavioral correctness. Four modes: static linter, spec, category rubric, audit.

not rated 36k +5.3k changed 17d ago A Socket: passSnyk: passSkillSpector: warn 27 tokens original MIT

AGENTS

12

promptfoo/promptfoo

Command Claude Code

Commander.js-based CLI commands registered in src/main.ts.

not rated 27k +229 today A 0 tokens original MIT

chromium/chromium

Skill Claude CodeCodex

Executes the phased, multi-skill code coverage debugging playbook for triaging underreported code coverage in the Gerrit Commit Queue (CQ).

not rated 25k +56 today A Snyk: warnSkillSpector: warn 38 tokens original BSD-3-Clause

evals-context

14

RooCodeInc/Roo-Code

Skill Claude CodeCodex

Provides context about the Roo Code evals system structure in this monorepo. Use when tasks mention "evals", "evaluation", "eval runs", "eval exercises", or working with the evals infrastructure. Helps distinguish between the evals execution system (packages/evals, apps/web-evals) and the public website evals display…

not rated 24k +12 5mo ago A 84 tokens original Apache-2.0 archived

qa

15

Skyvern-AI/skyvern

Skill Claude CodeCodex

QA test your code changes by reading your git diff, choosing the right validation path for frontend/browser and backend changes, and reporting pass/fail with evidence.

not rated 23k +26 changed 1mo ago A SkillSpector: warn 33 tokens AGPL-3.0

pydantic/pydantic-ai

Skill Claude CodeCodex

Build AI agents with Pydantic AI — tools, capabilities (including on-demand loading), workspaces, structured output, streaming, testing, and multi-agent patterns. Use when the user mentions Pydantic AI, imports pydanticai, or asks to build an AI agent, add tools/capabilities, attach a workspace, defer capability…

not rated 21k +78 changed 2d ago A Snyk: passSkillSpector: pass 92 tokens original MIT

Assay

17

danielmiessler/LifeOS

Skill Claude CodeCodex

Assertion-first eval framework: code asserts, calibrated judges, pass@k, A/B comparison, agentic evals, judgment-layer question systems and code-extract-decide-write pipelines. USE WHEN eval, evaluate, benchmark, judge, judge prompt, judge panel, regression test, assert, llm-rubric, calibrate judge, judged residue…

not rated 20k +63 yesterday A 222 tokens original MIT

mcp

18

keploy/keploy

MCP server Claude CodeCodexCursor +2

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic. Remote server at api.keploy.io.

not rated 19k +545 today A tokens not measured original Apache-2.0

review-prs

19

googleapis/mcp-toolbox

Skill Claude CodeCodex ✓ vendor

Review a GitHub pull request in the googleapis/mcp-toolbox repo against the team's reviewer checklist: PR title/description conventions, linked issue, logic errors and unhandled edge cases, breaking changes, test coverage, docs updates, security (input handling), and new dependencies. Use whenever a maintainer asks…

not rated 17k +54 yesterday A Snyk: warnSkillSpector: pass 162 tokens original Apache-2.0

implement-universal

20

Arindam200/awesome-ai-apps

Skill Claude Code

Harness-agnostic version of /implement. Drives a single workshop ticket through the SWE→Tester loop in ONE conversation, with the role prompts bundled as agents/software-engineer.md and agents/tester.md instead of being launched as subagents. Resolves the ticket from implementyourself/tasks/, creates an…

not rated 17k +71 yesterday A SkillSpector: pass 204 tokens original MIT

snippet_tests

21

dagster-io/dagster

Cursor rule Cursor

When updating tests in this directory, always run them to validate that they succeed. To do so, run.

not rated 16k +17 yesterday A 0 tokens original Apache-2.0

openmetadata-skills

22

open-metadata/OpenMetadata

Plugin Claude Code

Bundles 23 skills, 5 commands, 6 agents, 1 hook · 1,625 tokens together

Complete AI development workflow for OpenMetadata — structured planning, TDD, code review, test enforcement (90% coverage), systematic debugging, and connector development. Includes language-specific review agents for Java, Python, and TypeScript.

not rated 16k +55 today A tokens not measured original Apache-2.0

playwright-cli

23

microsoft/playwright-cli

Skill Claude Code ✓ vendor

Automate browser interactions, test web pages and work with Playwright tests.

not rated 15k +189 changed 5d ago A Socket: passSnyk: warnSkillSpector: warn 19 tokens copy · 100% Apache-2.0

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