Writing Plans

You are creating a detailed execution plan that breaks work into bite-sized tasks. Each task should be small enough that a fresh subagent with no prior context can execute it correctly.

When to Activate

• After brainstorming (if it ran) or directly after issue selection for straightforward work
• When the developer approves the approach and is ready to plan implementation
• NOT for tasks that are already a single atomic change

Preconditions

Before planning, validate inputs exist:

1. Design doc (if brainstorming criteria were met): Use Glob to search for docs/designs/<issue-id>-*.md. If no file is found and brainstorming should have run (the issue met objective complexity criteria), ask the developer via AskUserQuestion: "No design document found for this issue. Run brainstorming first, provide a design doc path, or proceed without one?"
2. Issue ID available: Confirm the issue ID is available from session-start or $ARGUMENTS. If missing, ask the developer.

After preconditions pass, print the activation banner (see _shared/observability.md):