Checks whether a downstream task has the minimum context contract and routes to context-builder when it does not.
Prevent downstream implementation from starting without a minimal context.md.
executionPlane == product_projectimplementation-runneranalysisContext.signals.executionPlaneanalysisContext.signals.contextReadyanalysisContext.artifacts.contextDocPathGoalConstraintsAcceptance CriteriaOut of ScopeTarget FilesVerification PlanexecutionPlane != product_project, pass with note.contextReady == true, pass.context-builder