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A small decorative raster character procession in a React footer must move from one flattened transparent image to articulated layered Canvas 2D rendering while preserving its original artwork. Occluded joints and overlapping straps are absent in the source. Need an asset quality gate comparing a reconstructed rest po…
A decorative browser canvas trail should follow a CSS-translated raster sprite along a container edge, fade over several seconds, preserve clickable content below the transparent overlay, pause offscreen or when the document is hidden, and disappear for reduced motion. Need a small bounded history and reliable synchro…
Stops a rich text editor page or scroll pane from jumping when a sticky toolbar button is clicked: prevents focus theft on mousedown, refocuses without scrolling, restores saved scroll positions, and adds a sticky-offset scroll padding. Use when toolbar clicks in Tiptap, ProseMirror, Lexical, Slate, or a plain content…
Shows how to highlight untrusted code in the browser with lowlight and highlight.js: cap input size before highlighting, register only needed languages instead of all grammars or auto detection, and render the returned hast AST as React elements so code text is escaped by React and no raw HTML string or eval is involv…
Fixes the the labeling tool failure "video annotation labels drift out of sync with frames after keyframe interpolation failure" by acting on the exact message, proving the fix on one item, then rerunning and reconciling counts. Use when this error blocks an export, review or check. Not for platform outages or permiss…
Fixes browser automation that times out scraping a billing dashboard for cancellation data by replacing fragile page waits with explicit element waits and an API-first fallback. Use when dashboard scrapes flake or hang. Not for a dashboard that requires human-only access by policy.
Stabilizes Playwright screenshots that flake because webfonts load late in CI. Use when screenshot comparisons intermittently fail with text rendered in fallback fonts. Covers waiting for document.fonts.ready, self-hosting fonts, and masking font-sensitive regions. Not for consistent font diffs against the baseline.
Fixes Playwright hidden-state timeouts where the element never hides in CI. Use when waiting for locator to be hidden times out only in CI. Covers screenshotting the actual state, finding the condition that should hide the element, and waiting on the underlying cause. Not for elements hidden everywhere.
Stops Playwright page crashes during navigation in CI. Use when navigation fails with page crashed only in CI. Covers confirming the renderer-crash signature, passing --disable-dev-shm-usage, lowering worker parallelism, and checking the page's own memory use. Not for pages that crash everywhere.
Fixes unreproducible rendering bugs caused by browser version mismatch between the agent's sandbox and CI. Use when a visual or DOM test fails on CI but passes for the agent and browser versions differ. Covers matching the exact CI browser version, pinning browser versions in CI config, and treating version-specific r…
Tightens a screenshot diff threshold that is letting real regressions through, with per-region thresholds and a reviewed diff gallery. Use when visual regressions ship despite screenshot tests passing. Not for tests with inherently unstable rendering, which need rendering stabilization or masking, not threshold tuning.
Eliminates Chromatic false-positive visual diffs caused by font rendering differences in CI. Use when Chromatic flags diffs that are only font or anti-aliasing changes. Not for genuine UI changes.
Fixes unreproducible rendering bugs caused by browser version mismatch between the agent's sandbox and CI. Use when a visual or DOM test fails on CI but passes for the agent and browser versions differ. Covers matching the exact CI browser version, pinning browser versions in CI config, and treating version-specific r…
Fixes Playwright "locator.scrollIntoViewIfNeeded: Element is not visible" that only fails on CI's smaller viewport. Covers pinning an explicit viewport in config, driving the responsive path when layouts intentionally hide the element, and scrolling inside the right container. Use when scroll or click works locally bu…
Covers visual regression timeouts on Thai font load: wait for document.fonts.ready with a generous timeout and preload subsets. Use it for tofu or timeouts on Thai text. Not for shaping bugs.
Covers QA agents missing truncated German strings: assert scrollWidth vs clientWidth on fixed elements. Use it when buttons cut off but tests pass. Not for intentional ellipsis.
Fixes the Playwright "locator.fill: Element is not visible" flake that shows up when a page animation has not finished in CI. It covers waiting for the element to settle, disabling animations for test runs, and picking locators that do not fight transitions. Use when fill or click actions flake in CI but pass locally …
Breaks agents looping on rewrites after render failures by fixing the renderer first. Use it when good text keeps failing to render. Not for writing quality issues.
Fixes scan agent crashes on WebGL pages with a detect-skip-flag guard. Use it when the agent dies on 3D canvas pages. Not for pages where WebGL is decorative and the DOM carries the content.
Fixes Playwright TimeoutError on selector waits: matching wait state to the need, verifying selectors against the live DOM, and handling lazy rendering. Use when wait_for_selector or locator actions time out during scraping. Not for navigation timeouts or error-status pages.