whetstone_DSL/docs/sprint249_execution_tracker_2026-02-26.md

Sprint 249 Execution Tracker - 2026-02-26

Scope

• sprint249_plan.md

Implemented

Pipeline updates in tools/mcp/run_sprint_taskitem_pipeline.sh:

• Added WSTONE_NATIVE_RAW_CANDIDATE_REQUIRE_UPLIFT (default 0).
• native_raw_candidate_search now reports:
  • baseline_failing_profile_count
  • best_failing_profile_count
  • baseline/best task counts
• Added artifact:
  • 02ae_raw_candidate_search.json
• Added hard-fail behavior (exit 17) when uplift is required but not achieved.

Validation Artifacts

• guard disabled (records no-uplift signal, continues):
  • logs/taskitem_runs/TEST_ONLY_sprint249_rawguard_20260226_154026/00_summary.json
• guard enabled (expected hard fail):
  • logs/taskitem_runs/TEST_ONLY_sprint249_rawguard_20260226_154028/02ae_raw_candidate_search.json

Observed signal:

• baseline and best both 7 failing profiles (selected_variant=0), so no uplift.

Explicit Completion Signal

• Sprint 249: DONE (implemented + expected no-uplift guard behavior verified)