fix(sidecar): resume truncated Gmail history via page token (#595) - #642
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fix(sidecar): resume truncated Gmail history via page token (#595)#642cursor[bot] wants to merge 1 commit into
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When listNewMessageIds hits MAX_HISTORY_PAGES the cursor correctly stays frozen, but if pages 1-3 are already deduped the poller re-fetched them forever and never reached page 4+ — silently skipping new mail. Persist history_page_token (migration 32) once a truncated slice is fully worked; the next poll resumes from that nextPageToken with the same cursor. Clear the token on a complete listing or when a batch cap leaves unprocessed ids in the current slice. Co-authored-by: schmug <schmug@users.noreply.github.com>
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Summary
history_page_token(migration 32) when a Gmail history listing hitsMAX_HISTORY_PAGESand the current 3-page slice is fully workednextPageTokenon the next poll without advancinghistory_cursorWhy
listNewMessageIdscaps at 3 history pages. When truncated, the cursor correctly stays frozen — but if pages 1–3 are already deduped, the poller re-fetched them forever and never reached page 4+, silently skipping new mail. This is a data-loss bug in the Workspace sidecar poller.Test plan
npm test -- tests/providers/workspace-poll.test.ts tests/providers/gmail-client.test.ts test/durableObject/sidecar-state.test.tspasses (59 tests)Notes for reviewer
Cherry-picked from prior investigation branch
cursor/critical-bug-investigation-9ee7. Batch-cap mid-slice intentionally clears the page token so unprocessed ids in pages 1–3 of the same cursor are not skipped.