1. Parse the user request to identify the plan file and any specific tasks.
2. Read and parse the plan file, extracting task details and dependencies.
3. Launch Sparky subagents for unblocked tasks in parallel, providing them with task-specific prompts.
4. Monitor the subagents' progress and validate their outputs against the plan's requirements.
5. Ensure tasks are marked complete with logs in the plan file.
6. Repeat the process for new unblocked tasks until the entire plan is executed.
7. Generate an execution summary with completed tasks, issues, and overall status.