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Reasonbook

The handoff demo

A 75-second replay of three recorded runs from 2026-10-12 on the Reasonbook 4.0.0 candidate. Claude Code saves a choice, Codex retrieves and corrects it before implementing the tool, and the chat plugin explains the result from the saved record.

This is an excerpted replay. Read the transcript and verification notes.

Stills

Claude Code records the plain-text choice as decision 1.
Claude Code records the plain-text choice as decision 1.
Codex records decision 2 with input validation and explicit persistence limits.
Codex records decision 2 with input validation and explicit persistence limits.
The chat plugin explains the saved rationale and pending follow-up.
The chat plugin explains the saved rationale and pending follow-up.
The dashboard API confirms the saved records; remote author linkage is unavailable.
The dashboard API confirms the saved records; remote author linkage is unavailable.