leaveletandClaude Opus 4.8
501faa8f5b
E2E caught it: registered=8 (per-layer activated correctly) then the prefill crashed with "Boolean value of Tensor with no values is ambiguous" — req.prefix_indices is a tensor and `prefix or []` evaluated its truthiness. Use a None+len check (safe for None/list/tensor), and wrap each request's registration in try/except so a setup error degrades to the monolithic transfer instead of crashing the scheduler. Also guard start_send_idx with getattr. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>