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Session Replay records every action Claude takes during a task and lets you play it back on a timeline. Useful for understanding what happened, debugging issues, or reviewing completed work.

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Accessing Session Replay

  1. Click on any task to open the Task Detail modal
  2. Click the Session Replay button in the top-right corner
  3. The replay panel opens at the bottom of the modal

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Event Types

Each event is color-coded on the timeline:

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Timeline Controls

  • Play/Pause — Automatically step through events at 300ms intervals
  • Click timeline bar — Jump to any point in the session
  • Click event markers — Select specific events on the timeline
  • Event list — Scrollable list on the left, click to select and view details

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Event Details

Select any event to see its full data:
  • Tool calls: Tool name, input parameters (file path, command, pattern)
  • Tool results: Output preview, error status, execution duration in ms
  • Usage: Input/output tokens, total cost, model used, number of turns
Events are recorded in real-time during task execution and stored in the task_events database table. The timeline shows elapsed time from the first event.