Purpose: Help users see what Claude thinks BEFORE planning begins - enabling course correction early when assumptions are wrong. Output: Conversational output only (no file creation) - ends with "What do you think?" prompt </objective>
<execution_context> @./references/phase-assumptions.md </execution_context>
<context> Phase number: $ARGUMENTS (required)Load project state first: @.planning/STATE.md
Load roadmap: @.planning/ROADMAP.md </context>
<process> 1. Validate phase number argument (error if missing or invalid) 2. Check if phase exists in roadmap 3. Follow phase-assumptions.md workflow: - Analyze roadmap description - Surface assumptions about: technical approach, implementation order, scope, risks, dependencies - Present assumptions clearly - Prompt "What do you think?" 4. Gather feedback and offer next steps </process><success_criteria>
- Phase validated against roadmap
- Assumptions surfaced across five areas
- User prompted for feedback
- User knows next steps (discuss context, plan phase, or correct assumptions) </success_criteria>