Testing agents

1,999 tagged Testing, measured the same way as everything else here.

Browse within: claude-code-plugin 189agents 128ai-coding 105cli 102LLM 88agentic-ai 80cursor 68skills 60agent-orchestration 54github-copilot 54spec-driven-development 51code-quality 49context-engineering 49agent 45

microsoft/playwright

Agent Claude Code ✓ vendor

Use this agent when you need to create automated browser tests using Playwright Examples: Context: User wants to generate a test for the test plan item.

not rated 98k +420 today A 151 tokens original Apache-2.0

Test Coverage

02

continuedev/continue

Agent Claude Code ✓ vendor

Ensure new functionality includes corresponding tests.

not rated 36k +68 yesterday A 9 tokens original Apache-2.0

test-engineer

03

QwenLM/qwen-code

Agent Claude Code needs its repo ✓ vendor

Test engineer agent for bug reproduction and verification. Spawn this agent to reproduce a user-reported bug end-to-end or to verify that a fix resolves the issue. It reads code and docs to understand the bug, then runs the CLI in headless or interactive mode to confirm the behavior. It can write test scripts as a…

not rated 29k +123 today A 119 tokens original Apache-2.0

tester

04

Arindam200/awesome-ai-apps

Agent Claude Code

Tester role definition for /implement-universal. Loaded by the orchestrator at the start of the Tester phase, on logic tickets only. Trusts the SWE phase's happy-path e2e excerpt (does NOT re-run the Make target), runs at most 1 adversarial break path, walks every Acceptance Criterion with concrete evidence, and emits…

not rated 16k +111 6d ago A 99 tokens original MIT

datahub-project/datahub

Agent Claude Code

Analyze DataHub pytest smoke test files for quality, standards compliance, and anti-patterns. Reports findings with severity levels and file:line references. Context: A PR adds new smoke tests for the incidents feature. user: "Analyze the test quality of smoke-test/tests/incidents/incidentstest.py" assistant: "I'll…

not rated 13k +45 changed 1mo ago A 119 tokens original Apache-2.0

lane-haiku-low

06

langwatch/langwatch

Agent Claude Code

The lane agent pinned to Haiku 5.5 (Alex, 2026-10-08): low effort: file inventories, narrow validation, formatting-only and repetitive checks. A bounded implementation lane in the LangWatch coordinator/lane workflow. Use when spawning work that has a manifest under .claude/manifests/ - the lane edits only its owned…

not rated 5.0k +30 today A 176 tokens original Apache-2.0

code-reviewer

07

brycewang-stanford/Auto-Empirical-Research-Skills

Agent Claude Code

Performs iterative QA review of executed scripts. Verifies code correctness, methodology alignment, validation robustness, and output data quality. Creates parallel QA inspection scripts. Invoked by orchestrator after each Stage 5-8 script execution. Also performs QA review of profiling scripts during Data Onboarding…

not rated 4.6k +90 yesterday A 70 tokens

critic

08

Doorman11991/smallcode

Agent Claude Code

Ruthless post-implementation verifier — rejects work that doesn't meet spec. Read-only except running checks.

not rated 2.0k +4 2mo ago A 23 tokens original MIT

node-smith

09

WeaveMindAI/weft

Agent Claude Code

Builds exactly one weft node end to end, unsupervised. Dispatched by Tangle with a typed contract (one job, exact ports); researches the real API documentation when the node wraps a service, writes the node and extensive tests in the project's nodes/ folder, and proves it by running weft test-node on the local tiers…

not rated 2.0k +6 changed 7d ago A 89 tokens

e2e-tests-engineer

10

happier-dev/happier

Agent Claude Code

Deprecated placeholder. Do not use; follow root AGENTS.md and package instructions instead.

not rated 2.0k +61 changed 1mo ago A 24 tokens original MIT

e2e-runner

11

cfrs2005/claude-init

Agent Claude Code needs its repo

An end-to-end testing assistant built around Playwright, a tool that controls real browsers to test complete user journeys.

not rated 1.4k +2 7mo ago A 70 tokens original MIT

f1-test-drive

12

cyrusagents/cyrus

Agent Claude Code

Assess applicability and run relevant F1 scenarios for changed product workflows or F1 harness behavior. Do not run drives or create reports for nonapplicable changes.

not rated 856 +6 changed 21d ago A 36 tokens original Apache-2.0

shinpr/claude-code-workflows

Agent Claude Code

Generates integration/E2E test skeletons from Design Doc ACs using ROI-based selection and journey-based E2E reservation. Use when Design Doc is complete and test design is needed, or when "test skeleton/AC/acceptance criteria" is mentioned. Behavior-first approach for minimal tests with maximum coverage.

not rated 698 +5 changed 2d ago A 68 tokens original MIT

evaluator

14

kangarooking/kangarooking-skills

Agent Claude Code

Use this agent to test implementations against sprint contracts and specifications. Uses Playwright MCP for E2E testing, Chrome DevTools for UI inspection, and visual tools for verification. Grades implementations and provides specific failure reports. Trigger when user says "test", "evaluate", "qa", "verify", or…

not rated 671 +9 1mo ago A 69 tokens

implement-agent

15

ThibautBaissac/rails_ai_agents

Agent Claude Code

Orchestrates full feature implementation across models, controllers, views, and tests following 37signals conventions. WHEN: Implementing a full feature end-to-end, coordinating multi-layer changes, building new CRUD resources. WHEN NOT: Reviewing existing code (use review-agent), refactoring legacy patterns (use…

not rated 667 +2 4mo ago A 74 tokens original MIT

nWave-ai/nWave

Agent Claude Code

Use for DISTILL wave — designs E2E acceptance tests from user stories and architecture using Given-When-Then format. EXPANDED scope (plan v3 §3.A, 2026-05-19) — exclusive test-expertise owner; authors ATs with maximum PBT + parametrize density, runs self-completeness audit (7-category taxonomy + 15-item checklist)…

not rated 620 +4 changed 1mo ago A 138 tokens original MIT

test-writer

17

vinilana/dotcontext

Agent Claude Code

Write comprehensive unit and integration tests.

not rated 572 2mo ago A 10 tokens original MIT

e2e-runner

18

vibeeval/vibecosystem

Agent Claude Code needs its repo

End-to-end testing specialist using Vercel Agent Browser (preferred) with Playwright fallback. Use PROACTIVELY for generating, maintaining, and running E2E tests. Manages test journeys, quarantines flaky tests, uploads artifacts (screenshots, videos, traces), and ensures critical user flows work.

not rated 536 +4 2mo ago A 69 tokens original MIT

fixture-reviewer

19

phel-lang/phel-lang

Agent Claude Code needs its repo

Checks .test fixtures for drift after a compiler change.

not rated 530 +1 changed 14d ago A 15 tokens original MIT

tester

20

iusztinpaul/designing-real-world-ai-agents-workshop

Agent Claude Code

Tester role definition for /implement-universal. Loaded by the orchestrator at the start of the Tester phase, on logic tickets only. Trusts the SWE phase's happy-path e2e excerpt (does NOT re-run the Make target), runs at most 1 adversarial break path, walks every Acceptance Criterion with concrete evidence, and emits…

not rated 514 +2 4mo ago A 99 tokens copy · 89% MIT

josstei/maestro-orchestrate

Agent Claude Code

Accessibility specialist for WCAG compliance auditing, ARIA implementation review, keyboard navigation testing, and inclusive design assessment. Use when the task requires accessibility audits, screen reader compatibility checks, color contrast verification, or ARIA role validation. For example: auditing a web app for…

not rated 479 +14 5d ago A 83 tokens original Apache-2.0

code-implementer

22

TypedDevs/bashunit

Agent Claude Code

Implement a bounded change in assigned files with Bash 3.0 compatibility and targeted validation.

not rated 435 +1 yesterday A 23 tokens original MIT

bulk-test-writer

23

aiskillstore/marketplace

Agent Claude Code

Writes tests for existing behaviour. Adds and edits test files only — never touches production code. Use for coverage backfill where the bulk of the work is mechanical.

not rated 434 +2 today A 37 tokens

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