Rishi: Traditionally connected with cosmogonic seers; in later ritual indexing often treated as belonging to the Viśvakarman hymn-complex (ṛṣi attribution varies by ancillary tradition).
Devata: Viśvakarman (with Vācaspati as invoked power of speech).
Chandas: Triṣṭubh (by general metrical profile of the Viśvakarman hymn; exact scansion may vary by pada).
vā́caspátiṃ viśvákarmaṇām ū́taye manojúvaṃ vā́je adyá huvema | sá no víśvāni hávanāni joṣad viśváśambhū́r ávase sādhúkarmā́ ||
Translation
Vācaspati, Viśvakarman, zur Hilfe—gedankenschnell—rufen wir heute an, beim Erringen des Preises. Möge er, der Allheilvolle, der gute Werkmeister, alle unsere Anrufungen gnädig annehmen, zu unserem Schutz.