Testing

20,047 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.

vulnhunter-fix

97

capitalone/VulnHunter

Skill Claude CodeCodex

Automate vulnerability remediation from VulnHunter scan results using TDD. Parses VulnHunter findings, writes exploit demos proving each vulnerability, writes security tests that define correct behavior (RED), implements fixes to pass those tests (GREEN), and delivers via PR or fallback GitHub issue. Each PR includes…

not rated 1.2k +16 1mo ago A SkillSpector: warn 135 tokens original Apache-2.0

test-strategy

98

kinopeee/cursorrules

Cursor rule Cursor

Rules for designing and implementing software tests, including normal cases, failures, invalid inputs, and boundary values. Boundary values are inputs at or just beyond limits, such as zero, empty values, or maximum values.

not rated 1.1k 10mo ago A 1,653 tokens original MIT

roborazzi

99

takahirom/roborazzi

Skill Claude CodeCodex

Use when working with Roborazzi screenshot tests on Android/JVM — setting up the Roborazzi Gradle plugin, running record/compare/verify tasks, writing tests with captureRoboImage or RoborazziRule, Compose Preview screenshot testing (ComposablePreviewScanner), Compose Multiplatform (iOS/desktop) screenshots, AI-powered…

not rated 1.1k +4 today A SkillSpector: pass 95 tokens original Apache-2.0

ui-automation

100

MGdaasLab/WHartTest

Skill Claude CodeCodex

A tool for managing browser-based tests in the WHartTest testing platform, including pages, page elements, steps, and test cases.

not rated 1.1k +18 changed 4d ago A 96 tokens

harden

101

SterlingChin/marvin-template

Skill Claude CodeCodex

Audit a software project for hardening — security, AI gaps, test coverage, code quality, and decoupling. Use when user wants to harden a project, audit for vulnerabilities, check test coverage, or separate private data from code.

not rated 1.0k +1 2mo ago A SkillSpector: pass 52 tokens original MIT

verify

102

meursyphus/ssgoi

Skill Claude Code

Build/launch/drive recipe for verifying apps/docs changes at runtime (demos, docs pages, llms.txt).

not rated 1.0k +2 yesterday A SkillSpector: pass 26 tokens original MIT

verify

103

wk42worldworld/cybercode

Skill Claude CodeCodex

Verify a code change does what it should by running the app.

not rated 1.0k +5 1mo ago A 15 tokens

aimock

104

CopilotKit/aimock

Plugin Claude Code

Bundles 1 skill, 1 command · 48 tokens together

Fixture authoring guidance for @copilotkit/aimock — LLM, multimedia, MCP, A2A, AG-UI, vector, and service mocking.

not rated 1.0k +6 changed 11d ago A tokens not measured original MIT

NVIDIA-NeMo/Megatron-Bridge

Skill Claude CodeCodex needs its repo

Create or update concise, agent-readable Megatron Bridge model verification cards. Use when adding a model support card, auditing cross-model convergence comparability or verification coverage, recording conversion, deterministic inference, training, checkpoint resume, post-SFT export, performance, or weak-scaling…

not rated 985 +11 changed 24d ago A SkillSpector: pass 120 tokens original Apache-2.0

octocode-benchmark

107

bgauryy/octocode

Skill Claude CodeCodex needs its repo

Use when planning, running, grading, or reporting the by-hand Octocode research benchmark — pairwise matchups (Octocode anchor vs one baseline: gh+RTK, gh+Headroom, or plain gh) over markdown questions, with a fresh isolated runner agent per (question, arm, pass), one blind judge per question grading two answers X/Y…

not rated 957 +3 yesterday A SkillSpector: warn 117 tokens original MIT

sc-skill

108

jazzyalex/agent-sessions

Skill Codex

Capture deterministic macOS screenshots for testing, docs, release notes, and marketing assets. Use when asked to automate app screenshots, batch-generate screenshot sets, standardize window sizing/composition, or choose between Peekaboo and native macOS screenshot tooling.

not rated 941 +11 3d ago A SkillSpector: pass 55 tokens original MIT

pdd-bug

109

promptdriven/pdd

Skill Claude CodeCodex

Use when fixing PDD bugs, errors or wrong results. Reproduce, prompt/tests PR 1, code PR 2 if asked.

not rated 931 +5 changed today A 33 tokens original MIT

testing

110

thedaviddias/llms-txt-hub

Cursor rule Cursor

Rules for writing Jest tests in TypeScript.

not rated 925 +3 today A 1,167 tokens

f1-test-drive

111

cyrusagents/cyrus

Skill Claude CodeCodex

Assess F1 applicability, then validate changed product workflows or the F1 harness end-to-end. Skip drives and reports when no relevant workflow behavior changes.

not rated 886 +4 changed 1mo ago A Socket: passSnyk: passSkillSpector: pass 35 tokens original Apache-2.0

proofshot

113

AmElmo/proofshot

Skill Claude Code

Visual verification of UI features. Use after building or modifying any UI component, page, or visual feature. Starts a verification session with video recording and error capture, then you drive the browser to test, then stop to bundle proof artifacts for the human.

not rated 870 +1 6mo ago A SkillSpector: pass 53 tokens original MIT

agent-qa-authoring

114

vostride/agent-qa

Skill Codex

Use when creating, editing, validating, or running agent-qa tests, suites, or hooks. Prefer agent-qa MCP tools, enforce canonical agent-qa IDs, and use the bundled schema reference to avoid hallucinated config keys or YAML fields.

not rated 856 +68 changed today A 56 tokens

codex-autoresearch

115

TheGreenCedar/codex-autoresearch

Skill Codex needs its repo

Triage improvement work and run or resume accepted measured loops in a local project. Architecture, documentation, UX, product study, open research, taste, and one-shot fixes stay direct unless the user explicitly requests repeated measurement with a complete experiment contract.

not rated 836 +1 changed 2mo ago A SkillSpector: warn 55 tokens original Apache-2.0

rag-perf

116

NVIDIA-AI-Blueprints/rag

Skill Claude Code

Performance benchmarking for a deployed NVIDIA RAG Blueprint server: profiling pass + aiperf load test driven by a single YAML config. Not for accuracy / RAGAS scoring (use rag-eval) or for deploying / repairing services (use rag-blueprint).

not rated 819 +8 4d ago A SkillSpector: pass 56 tokens original Apache-2.0 archived

/spdd-api-test

117

gszhangwei/open-spdd

Command Claude CodeCursor needs its repo

Generate a self-contained shell script with cURL commands to test API endpoints based on generated code and acceptance criteria.

not rated 819 +3 1mo ago A 26 tokens original MIT

obra/superpowers-skills

Skill Claude Code

RED-GREEN-REFACTOR for process documentation - baseline without skill, write addressing failures, iterate closing loopholes.

not rated 759 +4 1y ago A Socket: passSnyk: pass 29 tokens original MIT archived

old-coder

119

AmazingAng/old-coder

Skill Claude CodeCodex

Evidence-first development — surround the implementation with an executable spec and a gauntlet of constraints (tests, types, coverage, mutation) so line-by-line review becomes optional. Use when the user explicitly asks for high-assurance or evidence-first work ("reliable", "TDD", "prove it works", "I won't read the…

not rated 757 +4 2d ago A SkillSpector: pass 116 tokens original MIT

skysynth

120

skydiscover-ai/skydiscover

Plugin Claude Code

Bundles 2 skills, 1 command, 2 hooks · 204 tokens together

/skysynth: coding agents build a system specialized for your workload, checked by tests or machine-checked proofs. Includes the /skysynth skill, the agent roles (Spec Builder, Planner, Coding Agent, Evaluator, Critic, Auditor), and the hook that runs the tests before anything is delivered. Also install the skydiscover.

not rated 752 +21 1mo ago A tokens not measured original Apache-2.0

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: