stage 5 done

Author: icmoore

.DS_Store

@@ -0,0 +1,57 @@
+# Milestone 5 — Smoke Benchmark Freeze ✅
+
+**Goal:**  
+Establish a minimal working benchmark for DeFi domain with local verification + shim fallback. This milestone locks in a reproducible baseline before expanding to integration benchmarks.
+
+---
+
+## Acceptance Criteria
+- Local domain verification (`domains/defi/`) is preferred; shim fallback is available if ngeodesic not present.  
+- `rails_shim` returns stable reasons (`local:verified`, `shim:accept:stage-N`, or `ltv`).  
+- Smoke benchmark **passes with ok accuracy ≥ 0.66**.
+
+---
+
+## Commands
+
+### Run Smoke Benchmark
+```bash
+MICROLM_DISABLE_RAILS=1 micro-lm-bench defi \
+  --file benches/defi_smoke.jsonl \
+  --out .artifacts/defi_smoke_results.jsonl \
+  --summary-out .artifacts/defi_smoke_summary.json \
+  --gate-metric ok_acc --gate-min 0.66
+```
+
+### Verify Summary
+```bash
+python3 - <<'PY'
+import json, sys
+s = json.load(open(".artifacts/defi_smoke_summary.json"))
+acc = s.get("ok_acc", 0.0)
+print(f"[bench] ok={s['ok']} total={s['total']} acc={acc:.2f}")
+sys.exit(0 if acc >= 0.66 else 1)
+PY
+```
+
+---
+
+## Results (Frozen)
+```
+total:   3
+ok:      2
+ok_acc:  0.667
+label_acc: 1.0
+expect_ok_acc: 1.0
+exact_acc: 1.0
+```
+
+**Gate:** `ok_acc ≥ 0.66`  
+**Status:** PASS ✅  
+
+---
+
+## Notes
+- Stage 5 is the **freeze point**. No further changes should regress below this benchmark.  
+- This milestone sets the baseline for Stage 6 integration benchmarks.  
+- Artifacts (`.artifacts/defi_smoke_results.jsonl`, `.artifacts/defi_smoke_summary.json`) are reference outputs.