half-clone

Clone the later half of the current conversation, discarding earlier context to reduce token usage while preserving recent work.

Steps

1. Get the current session ID and project path:

   tail -1 ~/.claude/history.jsonl | jq -r '[.sessionId, .project] | @tsv'
   

   • If history.jsonl is empty or missing, inform the user that there is no conversation history to clone.

2. Find half-clone-conversation.sh:

   find ~/.claude -name "half-clone-conversation.sh" 2>/dev/null | sort -V | tail -1
   

   • This finds the script whether installed via plugin or manual symlink
   • Uses version sort to prefer the latest version if multiple exist
   • If the script is not found, inform the user that the half-clone plugin is not installed. They can install it from: https://github.com/anthropics/claude-code/tree/main/plugins

3. Preview the conversation to verify the session ID:

   <script-path> --preview <session-id> <project-path>
   

   • Check that the first and last messages match the current conversation

4. Run the clone: <script-path> <session-id> <project-path>

   • Always pass the project path from the history entry, not the current working directory

5. Tell the user they can access the half-cloned conversation with claude -r and look for the one marked [HALF-CLONE <timestamp>] (e.g., [HALF-CLONE Jan 7 14:30]). The script automatically appends a reference to the original conversation at the end of the cloned file.