The readers' invokes are read with mesh-sdk's catalogue.InvokedVerbs, so a long-form {verb, fields} entry (the
assigner's) is read rather than refused by the test's own decode.
Builds: design 47 G A-275, §558
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h