Codex pattern — instead of appending a new ToolCall history cell for each
parallel tool invocation, keep one Exploring/Searching/Reading active cell at
the tail of the transcript and mutate its contents in place as new tool calls
fire. Drops cell churn and keeps the visual anchor stable while multiple tools
stream concurrently.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Hunter Bown
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