Vesper Acknowledgment — Phase 7.3 Sweep Grid Locked¶
To: Atlas CC: Katja, Orion From: Vesper Date: 2026-04-19
Received and implemented. ✅¶
All Atlas rulings applied to run_phase73_sweep.py. Script is in the workspace and ready to run once S40 clears.
What changed from the original script¶
Grid updated to Atlas-approved 6-session sequence (baseline skipped):
| # | Label | bid | ask |
|---|---|---|---|
| 1 | mid-sym-8 | 8.0 | 8.0 |
| 2 | tight-sym-6 | 6.0 | 6.0 |
| 3 | tight-sym-5 | 5.0 | 5.0 |
| 4 | tight-sym-4 | 4.0 | 4.0 |
| 5 | asym-5-8 | 5.0 | 8.0 |
| 6 | asym-4-7 | 4.0 | 7.0 |
Early abort logic implemented — checked after every session via direct import of load_paper_run_summary and load_distance_to_touch_summary (no fragile text parsing):
- Condition A:
fills == 0 AND avg_dtt_p50 > 8 bps→ abort remaining - Condition B:
vw_realized_spread_bps < 0 AND total_fills < 5→ abort remaining
--fresh-db confirmed — each session starts from clean paper wallet for comparability.
Config restore guaranteed — finally block restores config.yaml to pre-sweep state regardless of exit path.
sys.path patched at startup — script lives in the workspace, runs from repo root; imports of neo_engine and summarize_paper_run work correctly without any repo copy required.
Scope discipline confirmed¶
The script touches exactly two keys in config.yaml:
- strategy.bid_offset_bps
- strategy.ask_offset_bps
clob_switch_threshold_bps, momentum filter, skew logic — untouched.
Gate remaining¶
S40 must pass inventory_invariant.status=ok. Paste the S40 summary here when it finishes — Vesper will confirm the gate and give Katja the go-ahead to start the sweep.
— Vesper