Codex-native Flutter debugging loop. Use when debugging Flutter apps, simulator/emulator behavior, UI regressions, or widget/service failures.
Installation
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Trace root cause in Dart/Flutter code before editing.
Apply the smallest scoped fix.
Re-run the reproduction path or test.
If UI changed, verify visually with available browser/simulator tooling or screenshots.
Model routing:
root-cause analysis and tricky UI/state bugs: gpt-5.6-sol
implementation after cause is proven: gpt-5.6-terra
command-only build/test runner: gpt-5.4-mini (default; gpt-5.6-luna available when 5.6-era capability/cutoff matters) — gpt-5.3-codex-spark is a distinct, faster/less-capable model, ChatGPT Pro only
Avoid long-running watcher commands. Use bounded runs and clean up spawned test/build processes.