Testing

18,394 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.

godpowers

865

hannsxpeter/godpowers

Skill Codex

AI-powered development system that takes a project from raw idea to hardened production. Fuses artifact discipline, execution engine, quality enforcement, and team intelligence into one unified workflow. Triggers on: "god mode", "god init", "god prd", "god arch", "god roadmap", "god stack", "god repo", "god build"…

not rated 6 +1 changed 3d ago A 158 tokens original MIT

BlockedPath/pi-agent-plugins

Skill Claude CodeCodex

Verify that a portable Agent Plugin loaded correctly in Pi by checking this skill and calling the bundled official MCP everything test server. Use when testing pi-agent-plugins installation, skill discovery, MCP trust, or MCP tool connectivity.

not rated 7 +1 1mo ago A 50 tokens original MIT

verify

867

appautomaton/pi-arcweld

Skill Claude Code

Drive the MCP extension through the real Pi TUI and capture provider-prefix behavior.

not rated 6 4d ago B 1 tokens original MIT

qa-e2e-security

868

Agent-Hellboy/mcp-runtime

Skill Codex needs its repo

Real-cluster security regression QA — backend auth enforcement, grant/session policy, gateway deny paths, audit emission, trust escalation, UI/API security headers, HTTPS redirect modes, and secret-leak scanning in live logs. Use when Codex is asked to verify a change did not regress auth, governance, gateway policy…

not rated 6 3d ago A SkillSpector: warn 116 tokens original Apache-2.0

kotlin-quality

869

Heapy/kortex

Plugin Claude Code

Bundles 2 skills, 3 agents · 57 tokens together

Risk-based Kotlin review agents for READMEs, tests, architecture, domain behavior, concurrency, API and data compatibility, security, builds, performance, resilience, and platform runtimes.

not rated 6 changed yesterday A tokens not measured original Apache-2.0

claude-dev-pipeline

871

lucianfialho/claude-dev-pipeline

Plugin Claude Code

Bundles 15 skills · 316 tokens together

Dev-pipeline skill corpus for Claude Code: solve-issue, review-pr, validate-issue, and more. Ships SKILL.md prose as source of truth plus skill.yaml state machines generated by atomic-gates' offline converter. Pairs with atomic-gates >= 0.3.0 for schema-validated execution and audit trail.

not rated 6 5mo ago A tokens not measured

hono-best-practices

872

valuin/hono-best-practices

Skill Claude CodeCodex

Production patterns for Hono v4+ backends with Bun, Drizzle ORM, Better Auth, Stoker, hono-openapi + Zod + Scalar, and TDD with Bun test runner. Use when building features, writing tests, reviewing code, or setting up auth/RBAC in modular monolith Hono projects. Apply whenever you see Hono route definitions…

not rated 6 +1 5mo ago A 121 tokens

veripower

873

chipweaver/veripower

Plugin Claude Code

Bundles 12 skills, 3 hooks · 466 tokens together

AI-assisted IC design flow skills — specification, RTL, lint/CDC, simulation, synthesis, timing analysis, and signoff.

not rated 6 changed today A tokens not measured original MIT

patch-receipt

874

vivekparekh8/patch-receipt

Skill Codex

Create reproducible before-and-after evidence for software changes using annotated PNG, JPEG, MP4, backend HTTP scenarios, verified web flows, or Android/iOS app checks. Use for Playwright or Chrome DevTools MCP verification, UI/design fixes, visual regressions, interaction recordings, Android adb or iOS Simulator…

not rated 6 +1 1mo ago A 98 tokens original MIT

redbar.fix

875

emersonjds/redbar

Skill Claude Code

Write the missing tests for the gaps redbar found, following the canonical standard for that layer (Playwright's best practices for e2e, Vitest/Jest idiom for unit, Testcontainers for integration). Reads .redbar/gaps.json, writes one test file per gap, RUNS each test it wrote, and never leaves a failing test behind …

not rated 6 6d ago A 113 tokens original MIT

wopee-mcp

876

Wopee-io/wopee-mcp

MCP server Claude CodeCodexCursor +2

AI testing agents for web apps — dispatch test runs, crawls, fetch artifacts and status. Runs locally from the wopee-mcp npm package. Needs 3 environment variables to run.

not rated 5 21d ago A tokens not measured original MIT

tarn

878

NazarKalytiuk/tarn

Plugin Claude Code

Bundles 1 MCP server, 1 plugin

CLI-first API testing tool for .tarn.yaml files with structured JSON output and a bundled MCP server for AI-assisted write/run/debug workflows. A companion tarn-lsp language server plugin ships from the same marketplace under the tarn-lsp name.

not rated 5 3mo ago A tokens not measured original MIT

mcp

879

corralimited/snapdiff-mcp

MCP server Claude CodeCodexCursor +2

Visual-diff & change-detection tools that catch agentic UI drift for coding agents. Runs locally from the @corralimited/snapdiff-mcp npm package. Needs 2 environment variables to run.

not rated 5 13d ago A tokens not measured original MIT

argus

880

ironclawdevs27/Argus

MCP server Claude CodeCodexCursor +2

Argus — the QA layer for AI-assisted development. Claude-native (MCP) Chrome audits across 67 categories — errors, visual regressions, a11y, security, performance — no test files, secrets redacted by default (Aegis). Runs locally from the argusqa-os npm package.

not rated 5 1mo ago A tokens not measured original MIT

mockzilla-mcp

881

mockzilla/mockzilla-mcp

MCP server Claude CodeCodexCursor +2

Mockzilla MCP server. Mock any OpenAPI spec locally with Claude, Cursor, or Gemini CLI. Runs locally from the @mockzilla/mcp npm package. Needs 3 environment variables to run.

not rated 5 3mo ago A tokens not measured copy · 86% MIT

vigilis-mcp

882

piyushpathakqa/Vigilis

MCP server Claude CodeCodexCursor +2

Gate AI-written tests: heal safe drift, refuse to hide real bugs, sign a verifiable receipt. Runs locally from the vigilis-mcp npm package. Needs 1 environment variable to run.

not rated 5 22d ago A tokens not measured original MIT

offstage-qa

883

thesepehrm/offstage

Plugin Claude Code

Bundles 1 skill · 94 tokens together

Background QA for macOS apps via the offstage harness: AX perception, semantic port actuation, canonical pixel goldens, ground-truth verification.

not rated 5 6d ago A tokens not measured original MIT

shipwright

884

saadjangda/shipwright

Skill Claude CodeCodex

The only skill you need to build and ship world-class software — from idea to production. Covers the COMPLETE lifecycle: architecture design, domain modeling, service boundaries, data architecture, implementation with TDD, distinctive frontend design (anti-AI-slop), exhaustive QA across all layers, security hardening…

not rated 5 6mo ago A 189 tokens original MIT

qa-loop

885

christopherlouet/claude-base

Agent Claude Code

Autonomous audit-fix loop aligned with the Anthropic 2026 pattern (code-review plugin). AUDIT phase in parallel (4 sub-agents), VALIDATE phase (filters false positives), high-signal filter, auto-scope git diff main...HEAD. Flags --audit-only and --comment for read-only and inline PR post modes.

not rated 5 today A 72 tokens original MIT

completely

886

23ag1/completely

Plugin Claude Code

Bundles 8 skills, 1 agent, 3 hooks · 710 tokens together

Quality-first harness for autonomous AI coding agents: deterministic gates + a default-FAIL evaluator in the close path of the loop, over a Beads task spine. Done is earned, not asserted. Unifies GSD + Beads; stack-agnostic.

not rated 5 3mo ago A tokens not measured original MIT

bc-developer

887

jed1978/ddd-architecture-coach

Agent Claude Code

Implements BC components using TDD workflow. Reads the canonical Phase 3 spec at {coachoutputroot}/{bc}/spec.md plus the .claude/rules/{bc}.md quick-reference card and CLAUDE.md, then follows Red-Green-Refactor per Aggregate vertical slice. Stack-agnostic skeleton — all stack-specific commands (test runner, ORM…

not rated 5 4mo ago A 121 tokens original MIT

Cristhianzl/claude-skills-czl

Skill Claude CodeCodex

Build a new feature using strict test-driven development — UNDERSTAND → DESIGN → RED → VERIFY RED → GREEN → VERIFY GREEN → REFACTOR → VALIDATE → REPEAT. Use when building a new feature with TDD, when the user says "TDD this", "tests first", "red green refactor", or asks for feature work that needs to be verifiable…

not rated 5 today A 106 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: