Testing plugins

3,596 tagged Testing, measured the same way as everything else here.

Browse within: agentic-coding 45claude-code-plugins 38claude-code-skill 38code-quality 38claude-plugin 35claude-code-marketplace 34claude-code-skills 34agentic-workflow 33tdd 31plugins 30agentic 27plugin 26coding-agents 24prompt-engineering 23

superpowers

01

obra/superpowers

Plugin Claude Code

Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques.

280k +583 today A tokens not measured original MIT

ecc

02

affaan-m/ECC

Plugin Claude Code

Plugin marketplace listing 1 plugin: ecc.

245k +403 yesterday A tokens not measured original MIT

ecc

03

affaan-m/ECC

Plugin Claude Code

Harness-native ECC plugin for engineering teams - 68 agents, 286 skills, 94 legacy command shims, reusable hooks, rules, MCP conventions, and operator workflows for Claude Code plus adjacent agent harnesses.

245k +403 yesterday A tokens not measured original MIT

mattpocock

04

mattpocock/skills

Plugin Claude Code

Matt Pocock's skills for real engineering, as an installable Claude Code plugin.

242k 7d ago A tokens not measured original MIT

skills

05

mattpocock/skills

Plugin Claude Code

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.

242k 7d ago A tokens not measured original MIT

sample-hooks

06

ultraworkers/claw-code

Plugin Claude Code

Bundled sample plugin scaffold for hook integration tests.

195k +10 16d ago A tokens not measured original MIT

addy-agent-skills

07

addyosmani/agent-skills

Plugin Claude Code

Production-grade engineering skills for AI coding agents — covering the full software development lifecycle from spec to ship.

91k 3d ago A tokens not measured original MIT

agent-skills

08

addyosmani/agent-skills

Plugin Claude Code

Production-grade engineering skills for AI coding agents — covering the full software development lifecycle from spec to ship.

91k 3d ago A tokens not measured original MIT

pr-review

10

luongnv89/claude-howto

Plugin Claude Code

Complete PR review workflow with security, testing, and docs.

41k 6d ago A tokens not measured original MIT

.ai

11

huggingface/diffusers

Plugin Claude Code

Conventions and task skills for contributing to diffusers.

34k yesterday A tokens not measured original Apache-2.0

pm-skills

15

phuryn/pm-skills

Plugin Claude Code

Structured AI workflows for better product decisions. 68 domain-specific skills and 42 chained workflows across 9 PM plugins — from discovery to strategy, execution, launch, growth, and shipping AI-built software.

26k 2mo ago A tokens not measured original MIT

promptfoo

17

promptfoo/promptfoo

Plugin Claude Code

Plugin marketplace listing 1 plugin: promptfoo.

25k yesterday A tokens not measured original MIT

sample-plugin

18

promptfoo/promptfoo

Plugin Claude Code

Checks that projects follow standard conventions.

25k yesterday A tokens not measured original MIT

promptfoo

19

promptfoo/promptfoo

Plugin Claude Code

Teaches AI coding agents to connect providers and targets, write promptfoo eval suites, and set up or run red team scans.

25k yesterday A tokens not measured original MIT

pua

20

tanweai/pua

Plugin Claude Code

Opt-in productivity coaching for Claude Code. Use for explicit PUA/try-harder requests, user frustration after repeated failures, requests to retry or change approach, passive/low-quality work complaints, completion checks, evidence requests, test/verification reminders, and Ding-style workplace process cues. Normal…

20k 3d ago A tokens not measured

deepeval-plugins

21

confident-ai/deepeval

Plugin Claude Code

DeepEval plugins for LLM evaluation, tracing, and testing in Claude Code.

18k 2d ago A tokens not measured original Apache-2.0

agent-lightning

22

microsoft/agent-lightning

Plugin Claude Code

Turns coding agents into agent optimizers that improve accuracy, cost, latency, and reliability against a benchmark.

18k 4d ago A tokens not measured original MIT

claude-code

23

microsoft/SkillOpt

Plugin Claude Code

Give your local Claude agent a nightly 'sleep cycle': it reviews your past sessions offline, replays recurring tasks on your own API budget, and consolidates what it learns into validated memory (CLAUDE.md) and skills (SKILL.md) so it gets better the more you use it. Synthesizes SkillOpt (validation-gated skill…

16k 2d ago A tokens not measured original MIT

skills

24

open-metadata/OpenMetadata

Plugin Claude Code

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.

15k yesterday A tokens not measured original Apache-2.0