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Backoff on refresh when no changes found#8811
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Pull request overview
This PR updates ReviewManager’s periodic polling to use an exponential backoff when refreshes don’t detect state changes, reducing unnecessary work over time while still resetting to a minimum interval when changes are observed.
Changes:
- Introduces a backoff-based polling interval (min/max + multiplier) and applies it across poll cycles.
- Updates polling to detect “change” based on PR number / head SHA and avoids false positives by preserving the previous commit SHA in a no-op validate path.
- Adds a new test suite covering backoff behavior, focus-triggered refresh behavior, and max-interval capping.
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Copilot's findings
- Files reviewed: 2/2 changed files
- Comments generated: 3
dbaeumer
approved these changes
Jun 25, 2026
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