How to Use Claude Planner from Other Agents

Claude Planner is a specialized tool that invokes Claude Code CLI with Opus 4.5 model in plan mode to generate detailed implementation plans. When you need to plan complex changes that span multiple modules or need a structured approach before coding, use Claude Planner.

⚠️ Important: Execution Time Notice

Claude Planner typically takes 3-15 minutes to complete, depending on task complexity and codebase size. During execution:

• The terminal may appear frozen with no output - this is normal
• Do NOT interrupt or terminate the process
• The CLI is actively working in the background, exploring the codebase and generating a detailed plan
• Use --verbose flag to see real-time progress if you need reassurance
• Be patient - complex planning requires time for thorough analysis

If you interrupt the process thinking it's stuck, you'll lose all progress and need to start over.

When to Use Claude Planner