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fix(tui): batch streaming part deltas to keep TUI responsive during fast streams#24

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CreatorGhost merged 2 commits into
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stream-delta-batching
Jul 12, 2026
Merged

fix(tui): batch streaming part deltas to keep TUI responsive during fast streams#24
CreatorGhost merged 2 commits into
devfrom
stream-delta-batching

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Port of upstream anomalyco/opencode#36045. Buffers message.part.delta events with a 40ms flush so very fast model streams no longer starve the TUI render loop. Verified: tui context tests pass, typecheck clean.

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  • packages/tui/src/context/sync.tsx
  • packages/tui/test/cli/cmd/tui/sync-live-hydration.test.tsx
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@CreatorGhost CreatorGhost force-pushed the stream-delta-batching branch from f173997 to 9ac9d72 Compare July 12, 2026 16:00
Addresses Opus review of PR #24: a full snapshot dropped this part's buffered
deltas; now flush them into the store before the snapshot reconciles. Also flush
on stream completion (assistant message completed / session idle) so a stream
that ends on a delta isn't truncated, and clear the batching timer on manual
flush. Adds regression tests.
@CreatorGhost CreatorGhost force-pushed the stream-delta-batching branch from 9ac9d72 to 4429944 Compare July 12, 2026 16:37
@CreatorGhost CreatorGhost merged commit db48d3f into dev Jul 12, 2026
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