background (Haiku, Opus 5.5/High reviewer): 7/7 pass, 0 product defects.
d1 TaskStop stops only one server; d2 early failures reported at once; d3 Unicode/ANSI byte-exact; d4 watcher cleaned at exit; d5 8-task limit clear; d6 SIGINT+resume no redo, port freed; d7 kill -9 → server port freed in 359 ms (watchdog design).
Cosmetic FIXED: interrupted TaskStop said its sentence twice (TaskTools.ts returned the same text as output and error; toolRunner joins them) → error only; bash-round8 test asserts no output. 61 pass; tsc clean.
Notes: raw AbortError text 'The operation was aborted.' after Stop is never shown (desktop stops accepting events first); desktop cli-tool-result fallback to newest running card of same tool for an unknown id — low-confidence risk, not seen.
