The pyright ratchet caught my first attempt: a try-scoped from-import made ProbeBudgetExceeded possibly-unbound in the except tuple. Imports are now module-level dual (the file convention), the early-return returns False explicitly, and a _probe_failure_classes helper carries the caught-class set with degraded graceful behavior. Focused battery 87 green; pyright shows only the 3 pre-existing baseline errors.
Red-first checks prove shared global probe budget leaks into chat, and bash/grep compatibility names fail before dispatch. Change scopes artifacts by task digest, catches exhaustion, normalizes only to canonical approval-guarded handlers and exposes run_command for explicit shell intent. Focused 87 tests green. INCOMPLETE: scaffold fit blocked by missing checkable contracts, TUI status noise and full CI remain.
Nick