Implementing an authorized plan through coherent, verifiable resources: selecting ready work, implementing within accepted scope, running relevant checks and reading their results, and reconciling deviations and blockers. Use when implementation is starting, too many resources are partly finished, code diverges from the plan, a blocked resource has stalled unrelated work, or compilation is being treated as completion. Does not select repository gate policy (quality-gates), own test-design methods (tdd; java-testing-strategy for Java), maintain the status format (feature-progress-tracking), or define reporting discipline (coding-agent-discipline).
