# 2026-02-13

## Nightly Digestion Cron — LIVE ✅
- **Job ID:** `e157faf0-084f-4d8d-8693-814cf4340a48`
- **Schedule:** Every night at 4:00 AM ET (`0 4 * * *` America/Toronto)
- **Type:** Isolated agentTurn (manager), announces to #all-atomizer-hq
- **Protocol:** OP_11 full 6-step cycle (STORE → DISCARD → SORT → REPAIR → EVOLVE → SELF-DOCUMENT)
- Set up per Antoine's directive to officialize nightly memory processing

## Hydrotech Beam — Resumed
- Antoine approved continuing to next phase (~01:36 UTC)
- DOE Phase 1 (51 trials) completed previously but **gate check FAILED**:
  - 39/51 solved, 12 geo-infeasible (hole overlap)
  - **0 fully feasible designs** — displacement ≤10mm never achieved (min ~19.6mm)
  - **Mass = NaN** on all trials — extraction bug in journal/script
  - Stress constraint (≤130 MPa) met by some trials but displacement kills everything
- **Delegated to Tech Lead:** Diagnose mass NaN, analyze DOE landscape, recommend feasibility fix
  - Spawned sub-agent session: `hydrotech-doe-analysis`
- **Pending CEO decision:** Relax 10mm displacement constraint? Options presented: relax to ~20mm, expand DVs, or keep and find boundary
- Optimizer + Study Builder on standby for Phase 2 (TPE) after fixes

## Mass NaN Fix — COMMITTED ✅
- **Commit:** `580ed65` on Atomizer repo main branch
- **Root cause:** `solve_simulation.py` journal's `solve_simple_workflow()` tried to read mass via expression `p173` after part switching (geom→FEM→SIM→solve→back). Expression was stale/inaccessible after switching. `_temp_mass.txt` never written.
- **NOT** the `M1_Blank` hardcoding (that's assembly workflow only). Beam uses `solve_simple_workflow` (no `.afm`).
- **Fix (2 edits):**
  1. Extract mass RIGHT AFTER geometry rebuild (`DoUpdate()`) while geom part is work part — uses `MeasureManager.NewMassProperties()` (computes fresh from solid bodies)
  2. Post-solve: skip re-extraction if already done; fallback to MeasureManager instead of p173
- **NX Expert** did the fix but did NOT use MCP server — was a code-level debug task, not API discovery
- **NX Expert Slack issue:** sub-agent couldn't post to #all-atomizer-hq (channel ID routing problem for spawned agents)
- **Next:** Pull on dalidou, test single trial, then re-run full DOE with 20mm constraint

## Sub-agent Issues
- Tech Lead sub-agents both hit 200K token context limit and aborted (`abortedLastRun: true`)
- Had to do diagnosis myself then delegate to NX Expert
- NX Expert also couldn't post to Slack (channel_not_found with various target formats)
- **Lesson:** Sub-agents need leaner prompts, and Slack channel routing needs fixing for spawned sessions

## DEC-HB-012 — Displacement Constraint Relaxed
- 10mm → 20mm, CEO approved (dummy case, pipeline proving)
- Updated CONTEXT.md and DECISIONS.md in project folder