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Session Log — Sunday, April 19 2026

What We Worked On

  • NEO — completed Branch #7 (WAL checkpoint hardening): Atlas aligned, Vesper ruled Q1–Q5 + 4 Atlas additions, Orion delivered, Vesper reviewed and approved, applied and merged to main
  • NEO — ran S40 (30-min clean paper run post all 7 audit branches): completed cleanly, 316 ticks, 84 fills, VW +12.47 bps
  • NEO — discovered two Phase 7.3 pre-gate blockers from S40 DB inspection: distance_to_touch always NULL in paper mode, inventory_invariant.status key never written
  • NEO — Atlas alignment on Phase 7.3 metric ruling: intended distance approved as proxy, live capital deferred to Phase 7.4, phase framing locked (7.3=price calibration / 7.4=execution refinement)
  • NEO — Phase 7.3 sweep script written and Atlas grid approved (6 sessions, mid→tight→asym order, early-abort logic)
  • NEO — Orion tasked with 2 pre-gate branches; both fully scoped with code locations, logic, and test requirements

What Was Built or Changed

  • [C] Vesper Ruling — Branch 7 WAL Hardening Q1-Q5.md — all rulings + Atlas additions locked
  • [C] Atlas Alignment — Branch 7 Approved + Constraints.md — Atlas approval with 4 additions
  • [C] Vesper Review — Branch 7 fix-wal-checkpoint-hardening.md — APPROVED, apply commands
  • [C] Orion Delivery — Branch 7 fix-wal-checkpoint-hardening.md — delivery + test results
  • run_phase73_sweep.py — Phase 7.3 sweep script, Atlas-approved grid, abort logic, ready to run
  • [C] Atlas Alignment — Phase 7.3 Sweep Grid Approval.md — original grid submission to Atlas
  • [C] Vesper Acknowledgment — Phase 7.3 Sweep Grid Locked.md — Atlas grid modifications locked in
  • [C] Atlas Alignment — Phase 7.3 Evaluation Approach.md — design question on paper mode metric
  • [C] Orion Investigation Request — S40 Blockers.md — S40 DB findings, two blockers documented
  • [C] Vesper Acknowledgment — Phase 7.3 Metric Ruling.md — Atlas Option A ruling confirmed
  • [C] Orion Tasking — Phase 7.3 Pre-Gate Branches.md — fully scoped tasking for both branches
  • CLAUDE.md — updated: all 7 branches ✅, S40 complete, 2 new pre-gate branches, sweep script noted, tomorrow agenda cleared to backlog

Still Open

  • Branch A: fix/intended-distance-to-touch — Orion working overnight. Fall back to intended price when no live order; 2 tests required
  • Branch B: fix/inventory-invariant-at-shutdown — Orion working overnight. Hard check at shutdown, write inventory_invariant.status to engine_state; 3 tests required
  • S40-equivalent re-run needed after both branches merged — must confirm inventory_invariant.status=ok and distance_to_touch non-NULL before sweep starts
  • Phase 7.3 sweep: run_phase73_sweep.py is ready but blocked until above clears
  • Backlogged (deferred until Phase 7.3 complete): NEO ERD, financial skill review, agent expansion roadmap, market-monitoring agent

Start Here Tomorrow

Check if Orion has delivered patches for fix/intended-distance-to-touch and fix/inventory-invariant-at-shutdown — apply both, run the S40-equivalent re-run, confirm the two gates clear, then start the Phase 7.3 sweep with run_phase73_sweep.py.