browser-test-loop skillA
browser-test-loop is agent-read markdown (skill) from onewave-ai/claude-skills: Use to actually verify a web change in a real browser instead of assuming it works — click through a flow, catch console errors, check a form submits, confirm a fix on the page. Trigger when a UI change needs proof, a bug only reproduces in the browser, or the user asks to test, check, or screenshot the running app..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Browser Test Loop Code that compiles is not code that works. This is the loop that closes the gap between "the diff looks right" and "the page does the thing". ## Core Behavior Drive a real browser against the running app, assert on what actually rendered, and fix what fails. Never report a UI change as working on the strength of the diff alone. ## Setup Playwright is the default. It installs its own browsers and runs headless in CI. ```bash npm i -D @playwright/test && npx playwright install chromium ``` Start the app first and hold the port — a test suite against a dead server produces a wall of timeouts that tells you nothing: ```bash npm run dev > /tmp/dev.log 2>&1 & npx wait-on http://localhost:3000 ``` ## The Loop 1. **Name the assertion in one sentence.** "After submitting the contact form with a valid email, a success message appears and no console error fires." Vague goals produce vague tests. 2. **Write the smallest script that proves it.** One flow per file. 3. **Run it.** Read the failure, not the summary. 4. **Fix the app, not the test** — unless the test encoded the wrong expectation, in which case say so out loud. …
Read the whole file at its exact version.
How to install
mdr add onewave-ai/claude-skills/browser-test-loop@git:20260920.97b5147mdr add onewave-ai/claude-skills/browser-test-loop@sha256:0c49a983602d96c6Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_h7wxwckw6nrurcgg)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3596 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
onewave-ai/claude-skills · 306 stars · license MIT · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_h7wxwckw6nrurcgg GET https://markdownregistry.com/api/v1/resolve?ref=onewave-ai/claude-skills/browser-test-loop GET https://markdownregistry.com/api/v1/blob/0c49a983602d96c65fc1ccc330156dc6933107be95edad19cd588bbb2c6283c3
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.