- OQ-10's seed overstated alktty's exit-chunk design as a 'signal-identity
gap': the negative code is the documented signal encoding (alktty ADR-004,
ported from alknet ADR-055; src/local/pipe.rs::exit_code_from — Unix
ExitStatus::signal() → -sig), a tty/pty-grounded convention
- 'alktty widens the chunk' demoted from co-equal candidate to gated
exception: it would widen ControlMessage::Exit's one-way parsed shape,
the backend-wide exit_code API, and the alknet ADR-055 lineage — requires
an alktty ADR with explicit tty/pty-grounded justification, never an
alkssh convenience ask
- OQ-10 re-scoped to the real remaining detail: −1 (wait failure vs SIGHUP)
collision, core-dumped disposition, non-Unix semantics, name derivation
- correction notes added in place: poc-3 §D.2, pocs.md, mapping-table.md
(both rows); mapping.md exit_signal row updated
Verification: cargo doc --no-deps (docs-only change)