Brainstorm

Purpose

Design interrogation skill. Forces rigorous thinking BEFORE any code is written. Produces an approved spec that becomes the contract for /ai-plan.

HARD GATE: this skill produces a spec. No implementation happens until the user explicitly approves it.

When to Use

• User says "I want to build...", "how should we...", "let's design..."
• New feature, architecture change, or ambiguous requirement
• Any work where jumping straight to code would be premature

Process

1. Load context -- read specs/spec.md, decision-store.json, and docs/solution-intent.md section 7 (roadmap)
   • If a work item ID is provided (e.g., AB#100 or #45): a. Read .ai-engineering/manifest.yml work_items section for active provider and team config b. Fetch work item and its hierarchy from the provider:
     • GitHub: gh issue view <number> --json title,body,labels,milestone,assignees
     • Azure DevOps: az boards work-item show --id <number> --expand relations -o json c. Walk the hierarchy: Feature → User Story → Tasks (follow parent/child relations) d. Use all standard and custom fields the platform provides e. Pre-fill refs section in the generated spec frontmatter
2. Interrogate -- follow handlers/interrogate.md for the questioning flow
3. Propose approaches -- present 2-3 options with trade-offs (never just one)
4. Draft spec -- write spec to specs/spec.md
5. Review spec -- follow handlers/spec-review.md for the review loop (max 3 iterations)
6. STOP -- present approved spec. User runs /ai-plan to continue.

Quick Reference

Questioning Rules

• ONE question at a time. Never batch.
• Prefer multiple choice (A/B/C) over open-ended.
• Challenge vague language: "improve", "optimize", "clean up" are not requirements.
• Push back on scope creep. Ask: "Is this in scope for v1?"
• Explore edge cases the user has not mentioned.
• Max 10 questions per session. If you need more, the problem is too big -- split it.

Common Mistakes

• Skipping interrogation and jumping to the spec.
• Proposing only one approach (always propose 2-3).
• Writing implementation details in the spec (specs describe WHAT, not HOW).
• Not challenging the user's assumptions.
• Producing a spec without the review loop.

Integration

• Called by: user directly, or /ai-plan when requirements are unclear
• Calls: handlers/interrogate.md, handlers/spec-review.md
• Transitions to: /ai-plan (ONLY -- never directly to ai-build or /ai-dispatch)

$ARGUMENTS