# Sprint 262 Execution Tracker - 2026-02-26

## Scope
- `sprint262_plan.md`

## Implemented

New tool:
- `tools/mcp/synthesize_raw_template_control_pack.py`
  - Synthesizes output-shape control requirements from top-gap signals:
    - schema-level field requirements
    - explicit JSON template example
    - missing-signal alignment clause

Pipeline integration in `tools/mcp/run_sprint_taskitem_pipeline.sh`:
- Added:
  - `WSTONE_NATIVE_RAW_TEMPLATE_CONTROL_PACK`
  - `WSTONE_NATIVE_RAW_TEMPLATE_CONTROL_MAX_SIGNALS`
- Added artifacts:
  - `01g_raw_template_control_pack_requirements.json`
  - `01g_raw_template_control_pack_report.json`
- Added summary packet:
  - `native_raw_template_control_pack`

## Validation Artifacts

OFF:
- `logs/taskitem_runs/01a_fallback_intake_spec_20260226_165422/00_summary.json`

ON:
- `logs/taskitem_runs/01a_fallback_intake_spec_20260226_165430/00_summary.json`
- template-control artifacts:
  - `logs/taskitem_runs/01a_fallback_intake_spec_20260226_165430/01g_raw_template_control_pack_report.json`

Observed result on hard sample:
- template-control pack injected (`requirement_count=3`, `selected_signal_count=8`)
- `selected_variant` remained `0`
- `best_top_gap_score` remained `0`
- `failing_profile_count` remained `1`

## Explicit Completion Signal

- Sprint 262: `DONE` (implemented + validated; intrinsic uplift still pending)