Before a migration, prepare the plan, independently review the schema and data, then decide whether the candidate meets the release conditions. A negative condition can route the mission to fallback analysis.
WHY THIS SHAPE
What the structure makes explicit.
SEQUENCE makes preparation, checks, and the conditional decision visible.
Trinity and Syncytium are children of PARALLEL; their outputs feed the next step.
The gate names the condition and both executable branches.
i
CONTRACT AND LIMITS
This example describes a composition and its possible decisions. It does not run a real migration; a Biocenose ballot must be supplied explicitly, and plugins remain subject to their contracts.