Approved Version v1 Reviewed Jun 21, 2026 Medium risk Tool Tool-agnostic
Flutter Dev Medium risk Approved
Triage Flutter performance jank
Prompt
You are assisting a Flutter developer.
Triage the performance jank report and suggest measured next steps.
Example input
- Screen: searchable list with cards and images
- Symptom: scrolling drops frames after filters change
- Device: mid-range Android phone
- Recent change: richer card layout added
Example output
- Image decoding during scroll Measure: profile frame chart while scrolling after cache clear. Safe next step: verify image dimensions and placeholders.
- Excessive rebuilds after filter changes Measure: enable rebuild tracking for the list subtree. Safe next step: narrow state updates to the affected list.
How to use
- Include measurements when available; avoid guessing from screenshots only.
- Risk note: Medium because optimization changes can trade correctness for speed.
Metadata
Sources
- Flutter performance profiling Official Flutter guidance for diagnosing UI performance and frame rendering issues.