Mp Grill Requirements

Grill the user on raw requirements, clarify each one, then produce structured requirements in .mpx/REQUIREMENTS.md.

Input Resolution

1. If $ARGUMENTS is a file path, read it.
2. If $ARGUMENTS is inline text, use directly.
3. If no arguments, look for .mpx/RAW_REQUIREMENTS.md in the project root. If not found, ask the user for requirements.

Process

Parse raw requirements into individual items, then for EACH requirement:

1. Clarify ambiguity — ask about vague terms, edge cases, error handling.
2. Define acceptance criteria — what does "done" look like?
3. Ask about dependencies — does this depend on or block other requirements?
4. Confirm scope — what's in, what's out?

Rules for grilling:

• Batch all questions for a requirement into a single numbered list. Present together in one round.
• Only split into a follow-up round when answers would materially change subsequent questions.
• Provide a recommended answer with each question.
• If a question can be answered by exploring the codebase, explore the codebase instead of asking.
• Never skip the grilling step — every requirement must be clarified.

Output

After grilling all requirements, write to .mpx/REQUIREMENTS.md:

• If .mpx/ doesn't exist, create it.
• Append to existing REQUIREMENTS.md (preserve existing content).
• Group requirements by functional area.
• Each requirement gets: clear title, description, acceptance criteria.

If input came from .mpx/RAW_REQUIREMENTS.md, remove grilled items from that file after writing structured output.

Report

Summarize what was added: count of requirements, functional areas touched, any items deferred or needing follow-up.

Vocabulary Update (if applicable)

If VOCABULARY.md exists in the project root:

1. Review the grilling session for new domain terms, renamed concepts, or clarified definitions.
2. If new or updated terms were identified, present them to the user:
   • New terms with proposed definitions
   • Existing terms with updated definitions
   • Ambiguities or synonym conflicts
3. Only update VOCABULARY.md after user confirms the changes.
4. If no new terms emerged, skip silently.