[Pavel Feldman (pavelfeldman)]

Summary

• TestStep.params now land in the params trace event argument of the corresponding slice, so chrome://tracing shows the locator, url and test.step params next to each step.

[github-actions]

Test results for "tests 1"

4 flaky

⚠️ [chromium-library] › library/video.spec.ts:736 › screencast › should work with video+trace `@frozen-time-library-chromium-linux`
⚠️ [chromium-library] › library/beforeunload.spec.ts:130 › should support dismissing the dialog multiple times `@chromium-ubuntu-22.04-node24`
⚠️ [firefox-library] › library/heap.spec.ts:223 › should not leak workers `@firefox-ubuntu-22.04-node20`
⚠️ [firefox-page] › page/page-event-request.spec.ts:181 › should return response body when Cross-Origin-Opener-Policy is set `@firefox-ubuntu-22.04-node20`

51370 passed, 1238 skipped

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Merge workflow run.

[github-actions]

Test results for "MCP"

1 failed
❌ [webkit] › mcp/cli-json.spec.ts:191 › tool error on bad navigation returns JSON error @mcp-macos-latest-webkit

8141 passed, 1361 skipped

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Merge workflow run.

[github-actions]

Hi, I'm the Playwright bot and I took a look at the CI failures here.

🟡 One failure, but I can't tie it to this PR either way

[webkit] › mcp/cli-json.spec.ts:191 › tool error on bad navigation returns JSON error failed on mcp-macos-latest-webkit. This PR only touches the reporter, so the diff doesn't reach that test — but the test also has no failure history I can point to, so I'm calling it uncertain rather than a confirmed flake.

Details

The latest merged reports: tests 1 is clean (4 flaky, 0 failed) and MCP has a single failure. So there's one real failure to explain.

Uncertain

• [webkit] › mcp/cli-json.spec.ts:191 › tool error on bad navigation returns JSON error (@mcp-macos-latest-webkit) — this PR changes only reporter code (chromeTrace.ts, index.ts reporter wiring, docs, and the reporter/step test-runner specs). None of that is exercised by an MCP CLI test that spawns the CLI and asserts on its JSON error output, so the diff can't plausibly reach it. But I can't confirm a flake either: across the aggregated CI results this test is 0 failures in 725 runs on mcp-macos-latest-webkit (and 700+ green on every other MCP bot), so there's no prior failure/flip to cite. Most likely one-off noise on the macOS runner, but unproven. To be sure I'd want to see whether it reproduces on a rerun of the MCP shard.

Flaky / infra

• The tests 1 report lists only flaky retries (video.spec.ts:736, beforeunload.spec.ts:130, heap.spec.ts:223, page-event-request.spec.ts:181) — all passed on retry and none in code this reporter-only PR touches. Nothing to triage there.

_{Triaged by the Playwright bot - agent run}