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Test Failure Triage

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Deterministically classify common Playwright, Selenium, pytest, Jest, database, dependency, and CI failures. The browser workflow runs locally, reports confidence, and links every recognized result to maintained failure knowledge.

#failure-triage#ci-debugging#playwright#pytest#jest

Triage a test failure

Paste a stack trace, CI excerpt, or runner error. Matching happens locally with transparent rules.

Maximum input size: 1 MB.

Private by design. This page makes no network request with your input. It stores no log, file name, result, input length, selector, token, or identifier.

The explanation starts with evidence

Load an example or paste a failure. Nothing leaves this browser tab.

What is deterministic test failure triage?

Deterministic test failure triage maps known error signatures to a documented classification, likely cause, diagnostic path, and repair. This tool evaluates rules in your browser, shows its confidence, and links every recognized result to a maintained failure guide. It does not use an LLM or upload your evidence.

Preserve the evidence

Paste the first causal error plus the surrounding stack. Avoid replacing the evidence with a summary.

Match known signals

The engine scores exact signatures and supporting context. A weak match is never presented as certainty.

Verify the hypothesis

Use the diagnostic checks to distinguish the ranked causes before changing application or test code.

Built on reusable failure knowledge

The initial rule set covers common Playwright, Selenium, Jest, pytest, database, dependency, and CI failures. Each pattern is a human-readable asset, not a hidden prompt.

Playwright timeout exceededPlaywright strict mode violationStale element reference exceptionElement is not visible or actionableECONNREFUSED in CIDNS resolution failed in CIpytest fixture not foundJest cannot log after tests are done

Browser workflow

Use the page when the evidence is sensitive. The client workflow makes no request with your input and retains nothing after the tab closes.

Agent contract

For controlled automation, the same rule engine is available through one documented JSON endpoint. Callers decide what they send.

Read the OpenAPI contractUnderstand the boundary

Agent-readable tool guide: Markdown variant