whetstone_DSL/docs/sprint264_execution_tracker_2026-02-26.md

Sprint 264 Execution Tracker - 2026-02-26

Scope

• sprint264_plan.md

Implemented

Pipeline parity fix in tools/mcp/run_sprint_taskitem_pipeline.sh:

• After raw candidate selection, pipeline now persists selected TASKS into:
  • 02_generate_taskitems.json
• This ensures downstream check_native_decomposition_impact_coverage.py and summary gates evaluate the same selected task set as raw scoring.

Validation Artifacts

Before parity fix (mismatch reference):

• logs/taskitem_runs/01a_fallback_intake_spec_20260226_165746/00_summary.json
  • raw score pass, coverage gate fail

After parity fix:

• logs/taskitem_runs/01a_fallback_intake_spec_20260226_170014/00_summary.json
• logs/taskitem_runs/01a_fallback_intake_spec_20260226_170014/06_native_impact_coverage.json
• logs/taskitem_runs/01a_fallback_intake_spec_20260226_170014/02ae_candidate_0_score.json

Observed result on hard sample (projector ON):

• native_raw_candidate_search.best_failing_profile_count=0
• native_impact_coverage.failing_profile_count=0
• taskitems.task_count=6, effective_task_count=6
• scorer and gate now consistent.

Explicit Completion Signal

• Sprint 264: DONE (implemented + validated parity closure on hard sample)