# Plan > Analyze requirements and produce a structured implementation plan. Use when this capability is needed. - Skill: `tomevault-io/plan-13` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/plan-13` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/plan-13/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/plan-13 --- # /plan Spawns the `planner` agent to analyze a task and produce an actionable implementation plan before writing any code. ## Steps 1. **Gather context** — understand what needs to be planned: - If arguments are provided (issue number, feature description), use those - Otherwise, ask the user what they want to plan - Collect relevant context: affected files, existing patterns, related code 2. **Spawn the agent** — use the Task tool: ``` Task tool with subagent_type="planner" ``` Pass in the prompt: - The requirement or task description - Relevant codebase context (file structure, existing patterns) - Any constraints or preferences the user mentioned 3. **Present the plan** — relay the agent's structured output: - Requirement analysis and restated problem - Ordered implementation steps with file paths - Test strategy (unit, integration, E2E) - Risk assessment and assumptions - The one decision most likely to be challenged in review 4. **Offer follow-up actions**: - "Approve and implement?" — proceed to coding with the plan as guide - "Refine?" — adjust specific sections of the plan - "Create issue?" — turn the plan into a GitHub issue --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/bis-code) — claim your Tome and manage your conversions.