diff --git a/.kiro/specs/scheduler-sim-repl-verbosity/tasks.md b/.kiro/specs/scheduler-sim-repl-verbosity/tasks.md
index 155197d7..e0b65477 100644
--- a/.kiro/specs/scheduler-sim-repl-verbosity/tasks.md
+++ b/.kiro/specs/scheduler-sim-repl-verbosity/tasks.md
@@ -111,7 +111,7 @@
   - _Boundary: Help & Breakpoint Discoverability_
 
 - [ ] 10. Validation: regression and real-data verification — Depends: 3.2, 4.2, 6.2, 8.2, 9.2
-- [ ] 10.1 Verify single-stepping and every other existing REPL command remain unchanged outside this feature's explicit exceptions
+- [x] 10.1 Verify single-stepping and every other existing REPL command remain unchanged outside this feature's explicit exceptions
   - Confirm single-stepping's per-event/per-decision output, and the inspection/breakpoint/parameter/snapshot commands' behavior and output, match their pre-feature baseline exactly except for the prompt content (Requirement 5.5), `info`'s job-identifier/resource-value listings (Requirements 4.5, 6), and `help`/`break`'s discoverability changes (Requirement 7); confirm no new top-level command was introduced
   - Observable: the existing REPL test suite's pre-existing assertions all still pass unmodified, and a step-mode transcript comparison shows no textual difference from the pre-feature baseline outside the prompt line itself
   - _Requirements: 5.1, 5.2, 5.3, 5.4_