plan-task

Plan & Task Persistence

Goal

Maintain plans and task progress across Claude Code sessions so that work can be resumed without losing context.

Execution

Delegate the plan/task work to a Sonnet subagent to minimize main context consumption.

1. Determine the operation mode from user input or session context
2. Prepare structured input fields for the subagent
3. Spawn a subagent with the following configuration:

Agent(
  subagent_type: "general-purpose",
  model: "sonnet",
  description: "plan and task management",
  prompt: |
    You are a plan and task management agent. Read the procedure file and follow it precisely.

    ## Operation
    {mode}

    ## Input
    ### what（事実）
    {what}

    ### why（判断理由）
    {why}

    ### context（背景情報）
    {context}

    ### tags_hint（推奨タグ）
    {tags_hint}

    ## Instructions
    1. Read the procedure file at: {plugin_root}/skills/plan-task/procedure.md
    2. Execute the procedure section matching the operation mode: {mode}
    3. The project root is: {project_root}
    4. The tasks directory is: {project_root}/.claude/tasks/
    5. For setup, asset files are at: {plugin_root}/skills/plan-task/assets/
    6. Return: operation performed, files created/modified, current plan status, and knowledge candidates (if any)
)

Replace the placeholders:

• {mode} — one of: session-start, create-plan, update-progress, revise-plan, pause, complete
• {what} — the factual situation (e.g., "user wants to create a plan for Docker migration" or "three tasks completed, one blocker found")
• {why} — why this operation is needed now (e.g., "new session started, need to check for incomplete work")
• {context} — relevant background (current branch, related issues, recently modified files, active plan slug if known)
• {tags_hint} — recommended tags for any knowledge entries that may be created (especially relevant for complete mode)
• {plugin_root} — the plugin's installation path (shown in the skill loading message as "Base directory for this skill")
• {project_root} — the project working directory