Backport: Serialize undefined tool output to null in UI message chunks - #16240
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On v6.0 the tool-output-available chunk is produced in stream-text.ts (to-ui-message-chunk.ts does not exist here). Apply the undefined->null coercion there and drop the cherry-picked v7-only files. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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June 17, 2026 23:04
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Jun 17, 2026
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This is an automated backport of #15855 to the release-v6.0 branch. FYI @nwalters512