i2r-acceptance-mode

Owned by: i2r-acceptance-author (opus). Input: 04-functional.json. Output: 06-acceptance.json.

Purpose

Turn every functional requirement (FR) into:

1. Internal layer — one or more Gherkin Given/When/Then scenarios (machine-parseable, ISO 29148 verifiability).
2. External layer — one prose "Passes when …" line per scenario (GSD-native; lands verbatim in PRD.md ## Acceptance Criteria).

Hard rules