Review of core/docs/engine-api-m1.md (lane/core@d6cf1fe) in
daemon/docs/engine-api-review.md. Sign off: nothing forces a sched/ or
RPC-dispatch rewrite; the split matches ADR 0011 and ADR 0013.
Answers: (1) keep probe_hint optional — DAEMON has a ProbeResult only
on the File Info path; (2) one cancel(discard_partial), download.remove
is cancel(true) + DAEMON-side row/file cleanup; (3) {restart,
keep_partial, abort} suffices if the engine owns the mechanical 416
re-probe/re-split; (4) per-task 4 Hz progress is fine — DAEMON
re-batches across tasks for event.task.progress anyway; (5) refresh_url
restarts all segments on the new URL (the signed-URL case), mirror
rotation is spec.mirrors not refresh_url.
Four things to confirm, none blocking: vdm::TaskId copy/hash semantics
and that DAEMON never constructs one; who mkdir -p's save_path's
parent; sha512 (in the wire Checksum, not the engine enum) rejected at
the RPC edge; on_finished(Err{cancelled}) code + ordering vs
on_state(_, cancelled, _).
Integration timing: wire after sched/ lands. sched/ builds against
these signatures in parallel with CORE stage 8.
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Upd9WhG9oppieig5nRDLig
