# Update Status Line Data ## Purpose Update or add custom key-value pairs to a session's status line data, enabling dynamic status line customization with arbitrary metadata. ## Variables - `session_id` - The unique session identifier to update - `key` - The key name to upsert in the extras object - `value` - The value to set for the specified key ## Instructions Update the session JSON file at `.rstack/data/sessions/{session_id}.json` by: 1. Locating the correct session file based on the provided session_id 2. Loading the existing JSON data 3. Creating an "extras" object if it doesn't exist 4. Upserting the key-value pair (update if exists, add if new) 5. Saving the updated JSON back to the file ## Workflow 1. Parse the session_id from $ARGUMENTS (format: "session_id key value") 2. Verify the session file exists at `.rstack/data/sessions/{session_id}.json` 3. Read the current session data 4. Initialize "extras" object if not present 5. Set extras[key] = value 6. Write the updated JSON back with proper formatting 7. Confirm the update was successful ## Report Report the following: - Session ID that was updated - Key that was modified - Previous value (if it existed) - New value that was set - Full path to the updated session file Example usage: ``` /update_status_line 4c932bd7-ee06-46e3-b26b-f32f52cc0862 project myapp /update_status_line 4c932bd7-ee06-46e3-b26b-f32f52cc0862 status debugging ```