Commit to a Route Budget

Create and run one performance budget check for a specific frontend route or interaction before merging a related PR. Choose a route or interaction you are already changing. Pick one user-centered metric: LCP for first content, INP/response for interaction delay, CLS for layout stability, or a bundle/long-task proxy if field data is not available. For [route/interaction], I will measure [metric] with [tool] before [merge/review]. Budget: [target]. If it misses, first fix is [image priority, code split, defer widget, reduce long task, reserve layout space, or other targeted move]. In three days, check whether the measurement happened and whether the PR…

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