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Return to Parent Thread

The user wants to return from the current fork to its parent thread.

Actions to Perform

1. Update session state:

   • Pop the current thread from the stack
   • Set current thread to the parent (top of stack)
   • Keep the fork in the "open forks" list (it's explored, not deleted)

2. Update session file:

   • Add a separator line ---
   • Add continuation header: ## [PARENT THREAD] [topic] (continued)
   • Add return reference: Returned from: [fork name]

3. Acknowledge the return to user:

BACK TO: [parent thread name]
(Explored: [fork name])

[Brief 1-line summary of what was explored in the fork]

Where were we? [Continue the parent thread's brainstorm, or ask what to explore next]

If Already at MAIN

If the user calls /brainstorm:back while already at MAIN (no parent to return to), display:

Already at MAIN thread - no parent to return to.

Current open forks: [list forks if any]

Then use AskUserQuestion to offer options:

{
  "questions": [
    {
      "question": "What would you like to do?",
      "header": "Navigate",
      "multiSelect": false,
      "options": [
        {"label": "Fork", "description": "Branch into a new tangent"},
        {"label": "Keep exploring", "description": "Continue on the main thread"}
      ]
    }
  ]
}

Important

• Stay in brainstorming mode
• After returning, continue the parent thread's brainstorm
• Briefly acknowledge what was explored in the fork
• Don't lose momentum - keep generating