# Sprint 247 Execution Tracker - 2026-02-26

## Scope
- `sprint247_plan.md`

## Implemented

New tool:
- `tools/mcp/synthesize_single_shot_profile_shape_tasks.py`
  - Activates profiles from spec.
  - Clones/normalizes base generated tasks with profile-required ops/reasons/contracts.

Pipeline integration in `tools/mcp/run_sprint_taskitem_pipeline.sh`:
- Added `WSTONE_NATIVE_SINGLESHOT_PROFILE_SHAPE` (default `0`).
- Emits artifacts:
  - `02ad_single_shot_base_tasks.json`
  - `02ad_single_shot_shaped_tasks.json`
  - `02ad_single_shot_shape_report.json`
- Adds summary packet:
  - `native_single_shot_profile_shape`

## Validation Artifacts

A/B (autofill OFF, multishot OFF, intrinsic boost ON):
- shaping OFF:
  - `logs/taskitem_runs/TEST_ONLY_sprint247_singleshot_20260226_153229/00_summary.json`
- shaping ON:
  - `logs/taskitem_runs/TEST_ONLY_sprint247_singleshot_20260226_153230/00_summary.json`

Observed delta:
- `failing_profile_count: 7 -> 0`

Enforced gate behavior:
- pass with shaping ON:
  - `logs/taskitem_runs/TEST_ONLY_sprint247_singleshot_enforce_20260226_153241/00_summary.json`
- fail with shaping OFF:
  - `logs/taskitem_runs/TEST_ONLY_sprint247_singleshot_enforce_20260226_153242/06_native_impact_coverage.json`

## Explicit Completion Signal

- Sprint 247: `DONE` (implemented + enforced pass/fail behavior verified)