Canary / blue-green / partial release.

Big-bang releases

Blue-green only, or canary with no platform-level constraints on the agent

Percentage rollouts with automated metric gating, **and the agent is structurally bounded by platform constraints**: deployment-tool parameter caps (agent cannot exceed policy-defined rollout percentages); pipeline-defined stages the agent can advance but cannot modify or skip; platform-verified metric gates on stage promotion

Rollout patterns learn safe vs. risky change types; canary thresholds auto-tune from historical false-positive rates; platform-enforced stage constraints auto-update from observed near-misses