A.16.0:4.7 - Re-expression and additional world-facing Work
Some formalize and operationalize steps re-express already available grounds through rewriting, slot-explicit articulation, route-bounded partialization, view retargeting, or normal-form repair. Performing those activities can itself be dated Work under A.15.1; the distinction here is whether new world-side measurements or interventions are needed.
Some steps additionally require new measurements, experiments, installation or use of instrumentation, execution, or other U.Work. When that happens, the trajectory account shall expose the work-boundary crossing. The account records why the crossing was required; use the relevant work, gate, or endpoint pattern to describe or test the world step. Add a particular Work, assertion, or ClaimGraph identity only when the claim or later reliance depends on it.
A work-boundary crossing does not by itself transfer responsibility or authority. If a separate actual responsibility handoff occurs, use the triggered branch in A.16.0:4.6 and keep its relation distinct from the Work, episteme lineage, publication, and endpoint use.