Best Testing agent skills
Verifying software behaves — unit, integration, end-to-end and cross-browser test suites. The 13 highest-ranked of the 13 agent skills tagged Testing in the Onei AI catalogue.
Everything tagged Testing: apps, skills and MCP servers Best Testing AI tools (apps), ranked
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by Microsoft
Microsoft's official Playwright skill — drives a real browser from the command line using accessibility snapshots and element refs, and plans, generates and heals Playwright tests.
Also: Browser Automation, Debugging · Editor's pick · Copied 5 times
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by Jesse Vincent
A disciplined debugging process — reproduce, isolate, hypothesise, and verify — used before proposing any fix.
Also: Debugging · Editor's pick · Copied 1 time
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by Jesse Vincent
Never claim work is complete, fixed, or passing without running the check and reading the output first.
Editor's pick
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by Jesse Vincent
Enforce a real red-green-refactor loop when implementing features or fixes, so behaviour is specified before it is written.
Editor's pick
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by Cypress.io
Cypress' official skill for writing, updating and repairing E2E and component tests — and it triggers on "write tests" even when nobody says Cypress.
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by Grafana Labs
Grafana's official k6 skill: generate a load, stress, spike or soak test from a plain-language brief, then actually run the script before handing it over.
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by Anthropic
Interact with and test local web applications using Playwright — verify frontend behavior, debug UI, capture screenshots, and read browser logs.
Also: Browser Automation, Debugging
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by TestMu AI
TestMu AI's official skill for generating production-grade Playwright suites in TypeScript, JavaScript, Python, Java or C#, locally or on a 3,000-combination browser cloud.
Also: Browser Automation
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by Trail of Bits
Trail of Bits' skill for writing production-quality Semgrep rules — pattern design, taint mode for data-flow bugs, and mandatory test-driven validation.
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by arpitg1304
Ten SKILL.md modules that give coding agents real ROS engineering judgement — ROS 1 and ROS 2, design patterns, perception, testing, Docker, bringup and robot security.
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by SerpApi
A protocol for measuring whether agents can discover and use your tool without being told about it — WITH/WITHOUT trials, binary scoring, and lift as the only metric. The subject under test is your docs, not the model.
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by Datadog
Official Datadog skill for investigating one flaky test — pulls its history and failure pattern, categorises the root cause and recommends fixing, quarantining or escalating.
Also: Debugging
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by Datadog
Official Datadog skill that triages a failing PR pipeline, attributing every CI failure as flaky, infra or genuine regression and proposing a targeted fix.
Also: Debugging
How this list is ranked
Ranked by 20 points for an editor's pick, plus 4 points per copy of the install command or SKILL.md up to 10, plus a point per 5 page views up to 100; ties go to the most recently updated. Discontinued skills are never ranked.