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4.7 Canary / blue-green / partial release

4. Safe Space / PL4-release-strategy

4.7 Canary / blue-green / partial release

percentage rollouts with metric-driven promotion, with the agent structurally bounded by platform constraints so it cannot bypass rollout stages or exceed policy-defined parameters


Levels

Level 0

Big-bang releases

Level 1

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

Level 2

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

Level 3

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


Recipes that advance this criterion