edit (Haiku, Opus 5.5/High reviewer): 10/11 pass, 1 fail.
FAIL j3-refactor-legacy (medium, reviewer ~60% sure; Claude confirmed as defect): main-conversation failure budget ended a debugging turn after 3 Bash failures in a row with 3 different errors (no timeout on macOS, TypeError in model script, BSD sed). Stop text "in this turn without a successful one" misleading (11 Bash calls had succeeded).
FIX (2026-10-30): src/engine/failureBudget.ts — main conversation applies the per-tool limit only once an error repeats from an earlier reply (numbers/whitespace ignored); different errors in a row are bounded by the total limit (6). Wording now "in a row in this turn". Tests: 2 new in tests/round10b-fixes.test.ts; 15 wording updates; 163 pass across 13 files; tsc clean.
Passes: b1 11/11, b2 5 approvals sane, b3 deny untouched, b4 tsc ok 5/5, b5 3 OK, b6 16 modules, b7 nbformat valid, b8 3004 lines ok, j4 docs ok, j5 commit ok.
