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Tier 1 mechanical: I1 regression-gate-as-policy (REQ-304/305), I2 contract-shape (REQ-295), I3 stack-IR rules (REQ-297). Tier 2 backend-enriched: I4 plan-JSON RULE_MAP mirrors (REQ-300), I5 meta-policies (REQ-303). Deferred: I6 env-transition (stateful, not policy-shaped), I7 drift (D-096 blocker), I8 cross-project (single-project). Quality improvement headline: I1 — capability regression becomes a declarative policy artifact, not imperative Python. ---ci--- project: acdl phase: 0 milestone: v1.25 status: ideate ---/ci---