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Agent skills for software testing in Claude Code

1,662 agent skills for software testing in the catalog list Claude Code as a supported host. These are the 15 that rank highest, ordered by adoption, freshness and documentation. rea-ci-tests-audit, e2e-cucumber-playwright and frontend-testing lead the list. Claude Code reads them from .claude/skills/<name>/SKILL.md in the project, or ~/.claude/skills/<name>/ for every project. A skill is a folder with a SKILL.md file; Claude Code loads it when a task matches its description. Every listing links to its source and shows a freshness grade.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

How to install in Claude Code

npx skills add <owner>/<repo> --skill <name> -a claude-code

Where it goes: .claude/skills/<name>/SKILL.md in the project, or ~/.claude/skills/<name>/ for every project.

The host's docs describe copying a folder with a SKILL.md into a skills directory; the npx skills command is a third-party shortcut for the same thing.

Each listing page has the exact command for that listing.

Top 15 of 1,662

  1. 1
    rea-ci-tests-audit

    morluto

    Audit REA CI and test suites for correctness, fixture drift, false passes, and measured performance; use for suite or workflow investigations and efficiency…

    • Largest repository here (377,435 stars)
    • Active in the last 30 days
    • Open source (MIT)

    ★ 377.4KLast active Oct 18, 2026Claude Code, Claude apps, Codex, Cursor +6

  2. 2
    e2e-cucumber-playwright

    langgenius

    Use when writing, changing, or reviewing Cucumber and Playwright tests under `e2e/`, including feature files, step definitions, support code, scenario tags…

    • Repository has 159.4K stars
    • Active in the last 30 days

    ★ 159.4KLast active Oct 23, 2026Claude Code, Claude apps, Codex, Cursor +6

  3. 3
    frontend-testing

    langgenius

    Use when writing or changing Vitest or React Testing Library tests under `web/` or `packages/dify-ui/`, or when the user explicitly requests frontend test…

    • Repository has 159.4K stars
    • Active in the last 30 days

    ★ 159.4KLast active Oct 23, 2026Claude Code, Claude apps, Codex, Cursor +6

  4. 4
    cli-e2e-testcase-writer

    larksuite

    Use when adding or updating Go CLI E2E coverage for one `tests/cli_e2e/{domain}` domain of the compiled `lark-cli`, especially when the work requires live…

    • Repository has 17.8K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 17.8KLast active Oct 13, 2026Claude Code, Claude apps, Codex, Cursor +6

  5. 5
    tdd

    open-metadata

    Use when implementing new features or fixing bugs to enforce test-driven development.

    • Repository has 15.6K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 15.6KLast active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

  6. 6
    playwright-validation

    open-metadata

    Use when validating UI changes in a branch require Playwright E2E testing.

    • Repository has 15.6K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 15.6KLast active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

  7. 7
    zero-day-discovery

    AIPentest

    0day自主发现引擎:变体分析/补丁间隙/差分/Fuzzing/污点推理/N-day武器化/猎人思维。Use when public vulns not found and need to discover 0day or weaponize N-day.

    • Repository has 8K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 8KLast active Oct 16, 2026Claude Code, Claude apps, Codex, Cursor +6

  8. 8
    ultraqa

    Yeachan-Heo

    Adversarial dynamic e2e QA workflow - generate hostile scenarios, test, verify, fix, report, and clean up

    • Repository has 33.6K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 33.6KLast active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  9. 9
    tdd

    vinvcn

    测试驱动开发。适用于用户想用先写测试的方式构建功能或修复缺陷、提到 “red-green-refactor”，或需要集成测试时。

    • Repository has 5.2K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 5.2KLast active Oct 8, 2026Claude Code, Claude apps, Codex, Cursor +6

  10. 10
    i4h-workflow-e2e

    Isaac for Healthcare Team <isaac-for-healthcare-support@nvidia.com>

    Run the maintained workflow data-to-policy pipeline from recording through checkpoint validation.

    • Repository has 3.7K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 3.7KLast active Sep 30, 2026Claude Code, Claude apps, Codex, Cursor +6

  11. 11
    check

    katanemo

    Run Rust fmt, clippy, and unit tests.

    • Repository has 7.1K stars
    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 7.1KLast active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  12. 12
    remote-build

    nubjs

    Run a nub Rust build, clippy gate, test suite, or ad-hoc fixture script on an ephemeral Google Cloud spot VM instead of the dev Mac.

    • Repository has 4.4K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 4.4KLast active Oct 19, 2026Claude Code, Claude apps, Codex, Cursor +6

  13. 13
    bmad-qa-generate-e2e-tests

    bmad-code-org

    Add end-to-end and API tests for features that already work, following the project's existing test harness.

    • Repository has 54.5K stars
    • Active in the last 30 days

    ★ 54.5KLast active Oct 17, 2026Claude Code, Claude apps, Codex, Cursor +6

  14. 14
    brooks-test

    hyhmrright

    Test quality review drawing on twelve classic engineering books — with primary focus on xUnit Test Patterns, The Art of Unit Testing, How Google Tests…

    • Repository has 1.5K stars
    • Active in the last 30 days
    • Open source (MIT)

    ★ 1.5KLast active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  15. 15
    agentic-test-creation

    trezor

    Discovery-first workflow for writing a new Playwright e2e test from a user story, feature description or bug report.

    • Repository has 1.1K stars
    • Active in the last 30 days

    ★ 1.1KLast active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

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