# Sprint 245 Execution Tracker - 2026-02-26

## Scope
- `sprint245_plan.md`

## Implemented

New tool:
- `tools/mcp/synthesize_native_intrinsic_boost_requirements.py`
  - Builds profile-derived intrinsic decomposition constraints from active profiles.

Pipeline integration in `tools/mcp/run_sprint_taskitem_pipeline.sh`:
- Added `WSTONE_NATIVE_INTRINSIC_BOOST` (default `0`).
- Writes intrinsic requirements artifact when enabled:
  - `01d_native_intrinsic_boost_requirements.json`
- Appends intrinsic requirements into `NORMALIZED_REQS` pre-generation.
- Summary now includes:
  - `native_intrinsic_boost`

## A/B Validation (autofill disabled)

- intrinsic OFF:
  - `logs/taskitem_runs/TEST_ONLY_sprint245_intrinsic_20260226_151834/00_summary.json`
- intrinsic ON:
  - `logs/taskitem_runs/TEST_ONLY_sprint245_intrinsic_20260226_151835/00_summary.json`

Observed result on hard fullstack sample:
- `native_impact_coverage.failing_profile_count: 7 -> 7`
- `taskitems.task_count: 2 -> 2`

## Explicit Completion Signal

- Sprint 245: `DONE` (implemented + measured; no closure uplift on this sample)