schema: spec-driven

context: |
  Project: cyb50-quant/research/dragon/v2
  Domain: rule-based index strategy research for 399673.
  Governance: RC1 is a frozen forward candidate and must not be directly retuned.
  Engineering preference: compatibility-first migration, golden regression first, behavior changes only in new branches.

rules:
  proposal:
    - Include sections: Why, What Changes, Capabilities, Impact.
    - Explicitly separate goals and non-goals.
  design:
    - Record migration decisions and rollback strategy.
    - Keep RC1 behavior-preservation constraints explicit.
  tasks:
    - Mark completed groundwork as [x] and future work as [ ].
    - Group tasks by workstream and include validation steps.
  spec:
    - Use normative SHALL language and include at least one scenario per requirement.