test driven development
A test-first workflow for turning a specific behavior requirement into an observable failing case and a focused implementation.
A browser-testing workflow with Playwright-oriented examples and server-lifecycle helpers for checking local web application behavior.
Editorial review checked 2026-10-29 against this instruction snapshot. Supporting scripts and runtime behavior remain outside this editorial review.
This source helps an agent approach a web interface through observable browser states. It provides examples for discovering what is rendered, interacting with controls and collecting evidence such as screenshots or logs. The local-server helper is a convenience around a test environment; it does not replace deciding which user journey and outcome the test should verify.
Developers checking a working local application, reproducing a browser-only defect or preparing evidence for a UI change. It is particularly useful when a change involves dynamic content, asynchronous results or a sequence of actions that a static source inspection cannot establish.
The environment needs compatible browser tooling and access to the application being tested. Automation can fail because of timing or selectors even when the product works, and can pass while missing a visual problem. Review helper scripts before execution, follow the source license terms and avoid exposing real credentials or sensitive user data in screenshots or logs.
Unknown; inspect source requirements and supporting scripts.
Inspect the pinned source snapshot and its supporting files first. The command selects this skill through the open-source skills CLI. Node.js and agent-specific setup may be required. Installation can download code. Catalog ingestion never executes skill instructions or install scripts.
npx skills add https://github.com/anthropics/skills/tree/ca45fc496a3436251f191354091d557da31c15b5/skills/webapp-testing --skill webapp-testingReview pinned skill folder ↗ · CLI documentation ↗
After source review, use npx skills check and npx skills update to inspect and apply upstream updates. Re-check changed instructions before running them.
Static review only. This is not a security audit or a guarantee of safety.
SKILL.md text only; scripts, dependencies and runtime behavior not audited.
Allowed tools declaration: Unknown. Runtime permissions and network behavior: Unknown.
86/100 · Metadata coverage 100% · Model 1.0
Scores summarize observable discovery signals. Popularity and repository activity apply to the whole repository. Unknown runtime safety earns no certification.
Choose a representative journey, start the required local services, inspect the rendered state and interact through meaningful controls. Check the result after each important transition. Add mobile and keyboard checks where the user flow depends on layout or focus behavior.
Verify the actual visible outcome, errors, empty states and relevant logs. Keep screenshots for important states, and distinguish local browser evidence from a later production smoke check.
Related by category; compare scope and dependencies before choosing an alternative.
A test-first workflow for turning a specific behavior requirement into an observable failing case and a focused implementation.
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2 catalog records share the same normalized instruction body. This grouping does not prove who wrote it or whether supporting files are identical. Showing up to four other records.
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Editorial combinations of complementary roles; review each source independently.
Move from a deliberate design direction to a performance review and a browser check of the real user journey.