diff --git a/tools/retrieval-eval/comparison-main-vs-hybrid-semantic.json b/tools/retrieval-eval/comparison-main-vs-hybrid-semantic.json
new file mode 100644
index 0000000..6f13286
--- /dev/null
+++ b/tools/retrieval-eval/comparison-main-vs-hybrid-semantic.json
@@ -0,0 +1,145 @@
+{
+ "baseline": "baseline-embcorpus",
+ "candidate": "hybrid-semantic",
+ "n_shared_queries": 38,
+ "fixed_by_candidate": [
+  "q15",
+  "q16",
+  "q20",
+  "q21",
+  "q26",
+  "q37"
+ ],
+ "broken_by_candidate": [],
+ "discordant": 6,
+ "net_queries": 6,
+ "mcnemar_exact_p": 0.03125,
+ "min_detectable_swing_queries": 6,
+ "observed_run_to_run_drift_queries": 0,
+ "noise_floor_queries": 6,
+ "verdict": "candidate better",
+ "baseline_aggregate": {
+  "n_queries": 38,
+  "n_scored": 35,
+  "hit@5": 0.34285714285714286,
+  "recall@5": 0.26947278911564626,
+  "recall@10": 0.3333333333333333,
+  "precision@5": 0.12000000000000001,
+  "mrr@10": 0.2943197278911564,
+  "nonsense_clean": "2/3",
+  "superseded_outranks": "1/3",
+  "latency_ms_p50": 1145.9,
+  "latency_ms_p95": 1574.3,
+  "latency_ms_max": 1634.2,
+  "errors": 0,
+  "by_category": {
+   "associative": {
+    "n": 6,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.0,
+    "mrr@10": 0.0
+   },
+   "exact_rare": {
+    "n": 6,
+    "hit@5": 1.0,
+    "recall@5": 1.0,
+    "recall@10": 1.0,
+    "mrr@10": 1.0
+   },
+   "nonsense": {
+    "n": 3,
+    "clean": 2,
+    "avg_false_positives": 3.3333333333333335
+   },
+   "paraphrase": {
+    "n": 13,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.0,
+    "mrr@10": 0.0
+   },
+   "phrase": {
+    "n": 7,
+    "hit@5": 0.8571428571428571,
+    "recall@5": 0.4902210884353741,
+    "recall@10": 0.6666666666666666,
+    "mrr@10": 0.5965986394557822
+   },
+   "superseded": {
+    "n": 3,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.3333333333333333,
+    "mrr@10": 0.041666666666666664,
+    "outranks": 1
+   }
+  }
+ },
+ "candidate_aggregate": {
+  "n_queries": 38,
+  "n_scored": 35,
+  "hit@5": 0.5142857142857142,
+  "recall@5": 0.4409013605442177,
+  "recall@10": 0.5047619047619047,
+  "precision@5": 0.15428571428571433,
+  "mrr@10": 0.38746031746031745,
+  "nonsense_clean": "2/3",
+  "superseded_outranks": "2/3",
+  "latency_ms_p50": 1219.7,
+  "latency_ms_p95": 1667.1,
+  "latency_ms_max": 1720.2,
+  "errors": 0,
+  "by_category": {
+   "associative": {
+    "n": 6,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.0,
+    "mrr@10": 0.0
+   },
+   "exact_rare": {
+    "n": 6,
+    "hit@5": 1.0,
+    "recall@5": 1.0,
+    "recall@10": 1.0,
+    "mrr@10": 1.0
+   },
+   "nonsense": {
+    "n": 3,
+    "clean": 2,
+    "avg_false_positives": 3.3333333333333335
+   },
+   "paraphrase": {
+    "n": 13,
+    "hit@5": 0.38461538461538464,
+    "recall@5": 0.38461538461538464,
+    "recall@10": 0.38461538461538464,
+    "mrr@10": 0.17307692307692307
+   },
+   "phrase": {
+    "n": 7,
+    "hit@5": 0.8571428571428571,
+    "recall@5": 0.4902210884353741,
+    "recall@10": 0.6666666666666666,
+    "mrr@10": 0.6634920634920636
+   },
+   "superseded": {
+    "n": 3,
+    "hit@5": 0.3333333333333333,
+    "recall@5": 0.3333333333333333,
+    "recall@10": 0.6666666666666666,
+    "mrr@10": 0.2222222222222222,
+    "outranks": 2
+   }
+  }
+ },
+ "repeat_variance": {
+  "candidate": {
+   "runs": 2,
+   "hit@5_min": 0.5142857142857142,
+   "hit@5_max": 0.5142857142857142,
+   "spread_queries": 0
+  }
+ }
+}
\ No newline at end of file
diff --git a/tools/retrieval-eval/embed-corpus.py b/tools/retrieval-eval/embed-corpus.py
new file mode 100644
index 0000000..6dbef64
--- /dev/null
+++ b/tools/retrieval-eval/embed-corpus.py
@@ -0,0 +1,43 @@
+import json,sys,time,urllib.request,threading,queue
+SRC="/Users/timlingo/neuron-memory-backups/snapshot-pre-repair-20260806.json"
+OUT=sys.argv[1]
+URL="http://127.0.0.1:11434/api/embeddings"; MODEL="nomic-embed-text"
+MAXB=2000  # ENGRAM_EMBED_MAX_CHARS, applied to bytes as the C code does
+d=json.load(open(SRC,encoding='utf-8',errors='surrogateescape'))
+tasks=[]
+for n in d["nodes"]:
+    c=n.get("content") or ""; t=n.get("node_type") or ""
+    if len(c)<8: continue                     # eg_embed_eligible
+    if t in ("InternalStateEvent","Tag"): continue
+    b=c.encode('utf-8',errors='surrogateescape')[:MAXB]
+    tasks.append((n.get("id") or "", b.decode('utf-8',errors='replace')))
+del d
+print("tasks",len(tasks),flush=True)
+q=queue.Queue(); [q.put(t) for t in tasks]
+lock=threading.Lock(); f=open(OUT,"w",encoding="utf-8",errors="surrogateescape"); done=[0]; t0=time.time(); fails=[0]
+def work():
+    while True:
+        try: nid,txt=q.get_nowait()
+        except queue.Empty: return
+        v=None
+        for attempt in range(3):
+            try:
+                body=json.dumps({"model":MODEL,"prompt":txt}).encode()
+                r=urllib.request.Request(URL,data=body,headers={"Content-Type":"application/json"})
+                with urllib.request.urlopen(r,timeout=120) as fh: v=json.load(fh)["embedding"]
+                break
+            except Exception as e:
+                if attempt==2:
+                    with lock: fails[0]+=1
+                time.sleep(0.5)
+        with lock:
+            if v: f.write(nid+"\t"+",".join("%.5g"%x for x in v)+"\n")
+            done[0]+=1
+            if done[0]%2000==0:
+                el=time.time()-t0
+                print("%d/%d  %.1f/s  eta %.1fmin  fails=%d"%(done[0],len(tasks),done[0]/el,(len(tasks)-done[0])/(done[0]/el)/60,fails[0]),flush=True)
+                f.flush()
+ths=[threading.Thread(target=work) for _ in range(8)]
+[t.start() for t in ths]; [t.join() for t in ths]
+f.close()
+print("DONE",done[0],"fails",fails[0],"secs %.1f"%(time.time()-t0),flush=True)
diff --git a/tools/retrieval-eval/merge-corpus.py b/tools/retrieval-eval/merge-corpus.py
new file mode 100644
index 0000000..f19bbfa
--- /dev/null
+++ b/tools/retrieval-eval/merge-corpus.py
@@ -0,0 +1,17 @@
+import json,sys
+SRC="/Users/timlingo/neuron-memory-backups/snapshot-pre-repair-20260806.json"
+TSV,OUT=sys.argv[1],sys.argv[2]
+emb={}
+for line in open(TSV,encoding='utf-8',errors='surrogateescape'):
+    p=line.rstrip("\n").rsplit("\t",1)
+    if len(p)==2 and p[1].count(",")>100: emb[p[0]]=p[1]
+print("vectors",len(emb),flush=True)
+d=json.load(open(SRC,encoding='utf-8',errors='surrogateescape'))
+hit=0
+for n in d["nodes"]:
+    v=emb.get(n.get("id") or "")
+    if v: n["emb"]=v; hit+=1
+print("attached",hit,"of",len(d["nodes"]),flush=True)
+with open(OUT,"w",encoding='utf-8',errors='surrogateescape') as f:
+    json.dump(d,f,ensure_ascii=False)
+print("wrote",OUT,flush=True)
diff --git a/tools/retrieval-eval/results-baseline-embcorpus.json b/tools/retrieval-eval/results-baseline-embcorpus.json
new file mode 100644
index 0000000..e585152
--- /dev/null
+++ b/tools/retrieval-eval/results-baseline-embcorpus.json
@@ -0,0 +1,945 @@
+{
+ "label": "baseline-embcorpus",
+ "soul_binary": "/private/tmp/claude-501/-Users-timlingo/82369039-a20e-4b5a-8a5e-28234a57b996/scratchpad/soul-baseline",
+ "soul_md5": "5cc9521734907cf2da30f0af94498c06",
+ "corpus": "/private/tmp/claude-501/-Users-timlingo/82369039-a20e-4b5a-8a5e-28234a57b996/scratchpad/corpus-embedded.json",
+ "corpus_nodes": 78768,
+ "corpus_edges": 14214,
+ "gold_set": "/Users/timlingo/Development/neuron-technologies/_wt-eval/tools/retrieval-eval/gold_set.json",
+ "limit": 10,
+ "port": 7893,
+ "wall_clock_s": 48.4,
+ "child_pid": 85995,
+ "child_confirmed_dead": true,
+ "aggregate": {
+  "n_queries": 38,
+  "n_scored": 35,
+  "hit@5": 0.34285714285714286,
+  "recall@5": 0.26947278911564626,
+  "recall@10": 0.3333333333333333,
+  "precision@5": 0.12000000000000001,
+  "mrr@10": 0.2943197278911564,
+  "nonsense_clean": "2/3",
+  "superseded_outranks": "1/3",
+  "latency_ms_p50": 1145.9,
+  "latency_ms_p95": 1574.3,
+  "latency_ms_max": 1634.2,
+  "errors": 0,
+  "by_category": {
+   "associative": {
+    "n": 6,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.0,
+    "mrr@10": 0.0
+   },
+   "exact_rare": {
+    "n": 6,
+    "hit@5": 1.0,
+    "recall@5": 1.0,
+    "recall@10": 1.0,
+    "mrr@10": 1.0
+   },
+   "nonsense": {
+    "n": 3,
+    "clean": 2,
+    "avg_false_positives": 3.3333333333333335
+   },
+   "paraphrase": {
+    "n": 13,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.0,
+    "mrr@10": 0.0
+   },
+   "phrase": {
+    "n": 7,
+    "hit@5": 0.8571428571428571,
+    "recall@5": 0.4902210884353741,
+    "recall@10": 0.6666666666666666,
+    "mrr@10": 0.5965986394557822
+   },
+   "superseded": {
+    "n": 3,
+    "hit@5": 0.0,
+    "recall@5": 0.0,
+    "recall@10": 0.3333333333333333,
+    "mrr@10": 0.041666666666666664,
+    "outranks": 1
+   }
+  }
+ },
+ "rows": [
+  {
+   "id": "q01",
+   "category": "exact_rare",
+   "query": "unjailbreakable",
+   "returned": [
+    "mem-7f61beb4-271c-4feb-9f6e-1c9c837a6226"
+   ],
+   "n_returned": 1,
+   "latency_ms": 229.0,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q02",
+   "category": "exact_rare",
+   "query": "engram-migrate",
+   "returned": [
+    "mem-6fdf6545-5e1a-43a9-8bdc-d2cd248146a5"
+   ],
+   "n_returned": 1,
+   "latency_ms": 262.1,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q03",
+   "category": "exact_rare",
+   "query": "cartabandonedevent",
+   "returned": [
+    "mem-1ba7c67d-85b9-4c2e-9fe2-39f8b0477091"
+   ],
+   "n_returned": 1,
+   "latency_ms": 230.1,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q04",
+   "category": "exact_rare",
+   "query": "pre-apprenticeship",
+   "returned": [
+    "mem-89c02aae-d3ca-43f9-9e5d-eb369896276c"
+   ],
+   "n_returned": 1,
+   "latency_ms": 229.2,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q05",
+   "category": "exact_rare",
+   "query": "inferencenodemanager",
+   "returned": [
+    "mem-73969486-143f-4431-b5e6-6845d1cc9848"
+   ],
+   "n_returned": 1,
+   "latency_ms": 250.4,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q06",
+   "category": "exact_rare",
+   "query": "clear-eyed",
+   "returned": [
+    "knw-c72597c5-c23d-4c08-8e9e-996dadf26a99"
+   ],
+   "n_returned": 1,
+   "latency_ms": 227.7,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q07",
+   "category": "phrase",
+   "query": "patterns not returns",
+   "returned": [
+    "kn-57b4c5e7-40c6-4c90-bf14-71841b0081d4",
+    "?ǚ?7??????",
+    "mem-a4a9dfc3-e40b-49b3-b1e1-060e8be2f482",
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "015644f5-8194-4af0-800d-dd4a0cd71396",
+    "????7???Ջ3",
+    "kn-d97920d0-1649-4223-9508-c0bb621e7fc0",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "art-d24fd6dd-2cda-4eed-92f3-67b535a0d71b",
+    "7?e?7???\f3?"
+   ],
+   "n_returned": 10,
+   "latency_ms": 532.2,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.3333333333333333
+  },
+  {
+   "id": "q08",
+   "category": "phrase",
+   "query": "thirty moves",
+   "returned": [
+    "knw-4aebd815-4eaf-49d7-954b-03595f3d48be",
+    "knw-7902acca-604e-409b-8faf-ad85424211d0",
+    "knw-2c46cfb4-6d4e-4822-8a1a-7d743c1e4329",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "knw-f671966c-3387-4848-abca-b5deec122e00",
+    "knw-e94982a2-358d-4f2f-af31-8ee0fcec07c6",
+    "Z[?<S???H??",
+    "rQ??m?;?x?'",
+    "kn-f230b362-b201-4402-9833-4160c89ab3d4",
+    "kn-6061318f-046b-4935-907d-8eafdce14930"
+   ],
+   "n_returned": 10,
+   "latency_ms": 457.9,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 0.3125,
+   "recall@10": 0.5,
+   "precision@5": 1.0,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q09",
+   "category": "phrase",
+   "query": "Grandma Lucas",
+   "returned": [
+    "art-0f0277a1-4a8e-4645-95dd-fa379976f31c",
+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "766de879-f9d0-4a07-b6df-b43ee13763d8",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325"
+   ],
+   "n_returned": 10,
+   "latency_ms": 472.2,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 0.3333333333333333,
+   "recall@10": 0.5555555555555556,
+   "precision@5": 0.6,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q10",
+   "category": "phrase",
+   "query": "Directed Harmonic",
+   "returned": [
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "ԍ????X????",
+    "bl-dcee1887-34c4-4ffa-9119-1e291685ba08",
+    "?ǚ?7??????",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "knw-e24d6339-5ff3-4bed-ba53-707ffd0dc70a",
+    "mem-7eeacad7-d7c2-4c2b-8348-19a59aa6dbaf",
+    "????7???Ջ3",
+    "??????X??2c",
+    "g?e?7???'c?"
+   ],
+   "n_returned": 10,
+   "latency_ms": 446.0,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.1111111111111111,
+   "precision@5": 0.0,
+   "mrr@10": 0.14285714285714285
+  },
+  {
+   "id": "q11",
+   "category": "phrase",
+   "query": "Sarah Bishop",
+   "returned": [
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "? ?}&?#??X\b",
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "766de879-f9d0-4a07-b6df-b43ee13763d8",
+    "mem-a9a9ce95-0d64-46eb-9db8-ff81d78ade35",
+    "mem-b8ecd23e-77ce-42f7-984c-f51453fec16d"
+   ],
+   "n_returned": 10,
+   "latency_ms": 462.6,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 0.5,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.2
+  },
+  {
+   "id": "q12",
+   "category": "phrase",
+   "query": "Directed Autonomous Runtime Modification",
+   "returned": [
+    "bl-5b17bd3b-0c41-46cb-a710-6fa4429692ff",
+    "bl-145a0985-2382-400f-a7c5-c335c5e30a72",
+    "mem-82b93b21-a865-410f-9ec1-fc54121d9bb5",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "mem-e6327f52-2bda-4ce7-9471-2fffd1e172de",
+    "7?e?7???\f3?",
+    "?of?7???",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 9,
+   "latency_ms": 832.2,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 0.2857142857142857,
+   "recall@10": 0.5,
+   "precision@5": 0.8,
+   "mrr@10": 1.0
+  },
+  {
+   "id": "q13",
+   "category": "phrase",
+   "query": "zero-knowledge encrypted backup",
+   "returned": [
+    "7774a16c-1027-4e3b-a21e-67f1f95a4acd",
+    "deda48cd-5e1a-46cb-bd43-8016afdb3a8a",
+    "mem-dba009a2-d2ea-4f5a-b9e8-0f04bc9ab32f",
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+    "mem-7cd90611-88a3-423d-a38a-0db2812952fa",
+    "bl-07375bf9-a169-42cd-adb3-7d32b25982f0",
+    "bl-ec84b63d-b278-4944-8d7f-4aa7a51c0315",
+    "7?e?7???\f3?",
+    "?of?7???",
+    "? ?}&?#??X\b"
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+   "n_returned": 10,
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+  {
+   "id": "q14",
+   "category": "paraphrase",
+   "query": "the elderly relative who passed while he stayed away",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
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+    "? ?}&?#??X\b",
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+  {
+   "id": "q15",
+   "category": "paraphrase",
+   "query": "a soldier sidelined by illness who refused to quit",
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+    "art-2fabd873-d787-49cb-ad30-d4ed9fcff8ef",
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+  },
+  {
+   "id": "q16",
+   "category": "paraphrase",
+   "query": "choosing an uncomfortable fact over a pleasant fiction",
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+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "kn-f8974b26-78a6-4aad-b893-19a73b20013d",
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+  {
+   "id": "q17",
+   "category": "paraphrase",
+   "query": "a tight payload beats a bloated one",
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+    "kn-d7c1e0fb-fa59-46d3-b4c9-a0d1d437a491",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
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+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "??o?'?B???k",
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+    "? ?}&?#??X\b",
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+  },
+  {
+   "id": "q18",
+   "category": "paraphrase",
+   "query": "if you are able and nobody is coming the job is yours",
+   "returned": [
+    "7?e?7???\f3?",
+    "?of?7???",
+    "imp-dce1da0f-8776-4a9e-972b-33411a7ca138",
+    "kn-5b606390-a52d-4ca2-8e0e-eba141d13440",
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+    "? ?}&?#??X\b",
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+  },
+  {
+   "id": "q19",
+   "category": "paraphrase",
+   "query": "learning is the wealth creditors cannot seize",
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+    "knw-7902acca-604e-409b-8faf-ad85424211d0",
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+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "7?e?7???\f3?",
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+    "? ?}&?#??X\b",
+    "kn-0625e393-067c-4bba-8389-7e1b79265142",
+    "ע?RGk?\tH(?"
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+  },
+  {
+   "id": "q20",
+   "category": "paraphrase",
+   "query": "reliability proven by track record not assertion",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "7?e?7???\f3?",
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+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356"
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+  },
+  {
+   "id": "q21",
+   "category": "paraphrase",
+   "query": "boundaries that enable instead of confine",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "??????X??2c",
+    "ԍ????X????",
+    "dR????X?-?S",
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "dz????Xƹ?i",
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+  },
+  {
+   "id": "q22",
+   "category": "paraphrase",
+   "query": "what shifts tells you where to cut a system apart",
+   "returned": [
+    "7?e?7???\f3?",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "?of?7???",
+    "kn-f8974b26-78a6-4aad-b893-19a73b20013d",
+    "knw-9e74ee95-ba7d-49b1-9262-977eae9729d1",
+    "dR????X?-?S",
+    "dz????Xƹ?i",
+    "ԍ????X????",
+    "??????X??2c",
+    "kn-d7c1e0fb-fa59-46d3-b4c9-a0d1d437a491"
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+   "n_returned": 10,
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+  },
+  {
+   "id": "q23",
+   "category": "paraphrase",
+   "query": "a mind that compounds instead of resetting each day",
+   "returned": [
+    "?ǚ?7??????",
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "????7???Ջ3",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "%???2??jH??",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "?of?7???"
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+   "mrr@10": 0.0
+  },
+  {
+   "id": "q24",
+   "category": "paraphrase",
+   "query": "loved for the unedited self and not the polished exterior",
+   "returned": [
+    "mem-bbb126a1-b297-42bb-86be-796871829c94",
+    "mem-45022957-2d78-48aa-a714-16d6eca52e0f",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "knw-35940684-abc4-42f0-b942-818f66b1f69a",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-0f0277a1-4a8e-4645-95dd-fa379976f31c",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "'?T?a\"B~-?8"
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+   "n_returned": 10,
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+   "mrr@10": 0.0
+  },
+  {
+   "id": "q25",
+   "category": "paraphrase",
+   "query": "cheerfulness you arrive at instead of assuming",
+   "returned": [
+    "015644f5-8194-4af0-800d-dd4a0cd71396",
+    "?ǚ?7??????",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "7?e?7???\f3?",
+    "kn-e8423822-eacf-4029-aa7b-10d4d28d621e",
+    "??S?7???",
+    "? ?}&?#??X\b",
+    "??f?7???",
+    "??S?7???",
+    "knw-5578cb21-e899-4822-b7f4-0d96fa094e3d"
+   ],
+   "n_returned": 10,
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+   "mrr@10": 0.0
+  },
+  {
+   "id": "q26",
+   "category": "paraphrase",
+   "query": "a childhood offering no solid foundation to inherit",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "7?e?7???\f3?",
+    "kn-e8423822-eacf-4029-aa7b-10d4d28d621e",
+    "? ?}&?#??X\b",
+    "??o?'?B???k",
+    "?of?7???",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 10,
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+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q27",
+   "category": "associative",
+   "query": "Grandma Lucas stroke February 2006 goodbye window",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "?ǚ?7??????"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1422.4,
+   "error": null,
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+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q28",
+   "category": "associative",
+   "query": "Marines hernia sepsis medical ward",
+   "returned": [
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "kn-58874a74-b96f-4883-9e08-45707f4bd3ee",
+    "bl-33ecccc2-e37f-43db-91b3-c2a86f08aaac",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "art-e0bdf5d8-d163-491f-b649-453fee8b721d",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "?of?7???"
+   ],
+   "n_returned": 10,
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+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q29",
+   "category": "associative",
+   "query": "Sarah Bishop Dyer trailer performance",
+   "returned": [
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "7?e?7???\f3?",
+    "?of?7???",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "kn-58874a74-b96f-4883-9e08-45707f4bd3ee"
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+   "mrr@10": 0.0
+  },
+  {
+   "id": "q30",
+   "category": "associative",
+   "query": "Swarm Architecture containment lateral worker",
+   "returned": [
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "bl-9bde67c1-f0ba-4c3a-8fe5-de0deee0ce43",
+    "8cbb60c5-4999-4ec1-8682-2592aedc4249",
+    "bl-0fac287f-f4c0-4f15-bc4d-ff7f8a7af3ae",
+    "7?e?7???\f3?",
+    "kn-6f248a50-355b-47bb-aec8-e0e646a9b077",
+    "? ?}&?#??X\b",
+    "h??I?cB?Q??",
+    "?of?7???",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1145.9,
+   "error": null,
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+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q31",
+   "category": "associative",
+   "query": "hope won inside the narrative preface",
+   "returned": [
+    "kn-5b606390-a52d-4ca2-8e0e-eba141d13440",
+    "kn-e0423482-cfa5-4796-8689-8495c93b66bc",
+    "knw-9e74ee95-ba7d-49b1-9262-977eae9729d1",
+    "7?e?7???\f3?",
+    "rQ??m?;?x?'",
+    "?Q??m?;?u?'",
+    "R^??m?;��?'",
+    "?Q??m?;��`'",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 9,
+   "latency_ms": 1177.5,
+   "error": null,
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+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q32",
+   "category": "associative",
+   "query": "man of the house six years old expectation",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-eb1b9e18-3dc6-4b9b-9cc6-86e0ae6b6be8",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-57b4c5e7-40c6-4c90-bf14-71841b0081d4",
+    "knw-35940684-abc4-42f0-b942-818f66b1f69a",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "art-2fabd873-d787-49cb-ad30-d4ed9fcff8ef"
+   ],
+   "n_returned": 10,
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+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q33",
+   "category": "nonsense",
+   "query": "zqxjvw plimforth grebulon",
+   "returned": [],
+   "n_returned": 0,
+   "latency_ms": 660.6,
+   "error": null,
+   "clean": true,
+   "false_positives": 0
+  },
+  {
+   "id": "q34",
+   "category": "nonsense",
+   "query": "flarnbistle quommetry",
+   "returned": [],
+   "n_returned": 0,
+   "latency_ms": 432.5,
+   "error": null,
+   "clean": true,
+   "false_positives": 0
+  },
+  {
+   "id": "q35",
+   "category": "nonsense",
+   "query": "xxqzzt vurblenacht throom",
+   "returned": [
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "knw-920c891f-bb8c-48c4-9afc-018ef12dcdc4",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "bl-4476e856-c567-4b49-8ff7-d7dca3e5715e",
+    "kn-66a21179-2adc-4b19-a109-880cf4674d7d",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 10,
+   "latency_ms": 676.9,
+   "error": null,
+   "clean": false,
+   "false_positives": 10
+  },
+  {
+   "id": "q36",
+   "category": "superseded",
+   "query": "is the self-improvement architecture called DARMA or DHARMA",
+   "returned": [
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "?of?7???",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
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+  },
+  {
+   "id": "q37",
+   "category": "superseded",
+   "query": "how many provisional patents does Will actually have",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "7?e?7???\f3?",
+    "?of?7???",
+    "?ǚ?7??????",
+    "[?MO5????G",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3"
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+   "rank_correct": null,
+   "rank_stale": null
+  },
+  {
+   "id": "q38",
+   "category": "superseded",
+   "query": "is MCP still the live integration layer",
+   "returned": [
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "%???2??jH??",
+    "???Ͼd??W\b?",
+    "??o?'?B???k",
+    "? ?}&?#??X\b",
+    "63307ac5-cf6b-46e0-8296-07503b461cfa",
+    "? ?}&?#??X\b",
+    "?of?7???"
+   ],
+   "n_returned": 10,
+   "latency_ms": 946.3,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
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+   "mrr@10": 0.0,
+   "outranks": false,
+   "rank_correct": null,
+   "rank_stale": null
+  }
+ ]
+}
\ No newline at end of file
diff --git a/tools/retrieval-eval/results-hybrid-r2.json b/tools/retrieval-eval/results-hybrid-r2.json
new file mode 100644
index 0000000..695a3ae
--- /dev/null
+++ b/tools/retrieval-eval/results-hybrid-r2.json
@@ -0,0 +1,956 @@
+{
+ "label": "hybrid-semantic-r2",
+ "soul_binary": "/private/tmp/claude-501/-Users-timlingo/82369039-a20e-4b5a-8a5e-28234a57b996/scratchpad/soul-hybrid",
+ "soul_md5": "5cd2718932c2ecf4940ddfe5a9c8abbe",
+ "corpus": "/private/tmp/claude-501/-Users-timlingo/82369039-a20e-4b5a-8a5e-28234a57b996/scratchpad/corpus-embedded.json",
+ "corpus_nodes": 78768,
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+ "gold_set": "/Users/timlingo/Development/neuron-technologies/_wt-eval/tools/retrieval-eval/gold_set.json",
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+  }
+ },
+ "rows": [
+  {
+   "id": "q01",
+   "category": "exact_rare",
+   "query": "unjailbreakable",
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+  {
+   "id": "q02",
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+    "mem-22fe5ec8-ae0d-4583-a05c-d1ef50353257",
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+    "project-engram-lang",
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+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 1.0
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+  {
+   "id": "q03",
+   "category": "exact_rare",
+   "query": "cartabandonedevent",
+   "returned": [
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+   "mrr@10": 1.0
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+  {
+   "id": "q04",
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+    "bl-c1765767-3e27-449a-8c94-10411d1eb7c0",
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+    "Z[?<S???H??",
+    "rQ??m?;?x?'",
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+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
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+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
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+  },
+  {
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+    "project-harmonic-framework",
+    "?ǚ?7??????",
+    "project-harmonic-framework_com",
+    "knw-e24d6339-5ff3-4bed-ba53-707ffd0dc70a",
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+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
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+    "?",
+    "mem-7cd90611-88a3-423d-a38a-0db2812952fa",
+    "?",
+    "bl-07375bf9-a169-42cd-adb3-7d32b25982f0",
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+   "mrr@10": 0.3333333333333333
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+  {
+   "id": "q14",
+   "category": "paraphrase",
+   "query": "the elderly relative who passed while he stayed away",
+   "returned": [
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
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+  {
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+  {
+   "id": "q16",
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+    "kn-13f60407-7b70-4db1-964f-ea1f8196efbd",
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+   "mrr@10": 0.5
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+  {
+   "id": "q17",
+   "category": "paraphrase",
+   "query": "a tight payload beats a bloated one",
+   "returned": [
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+    "7?e?7???\f3?",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
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+    "kn-e8423822-eacf-4029-aa7b-10d4d28d621e",
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+   "latency_ms": 1123.5,
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+   "mrr@10": 0.0
+  },
+  {
+   "id": "q18",
+   "category": "paraphrase",
+   "query": "if you are able and nobody is coming the job is yours",
+   "returned": [
+    "7?e?7???\f3?",
+    "?of?7???",
+    "imp-dce1da0f-8776-4a9e-972b-33411a7ca138",
+    "kn-5b606390-a52d-4ca2-8e0e-eba141d13440",
+    "kn-f8974b26-78a6-4aad-b893-19a73b20013d",
+    "kn-c2205725-69d0-4dd1-9a8d-1c7fa9a0c7b4",
+    "kn-83bb86c6-521d-416c-a86e-6e29c2d8f102",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 9,
+   "latency_ms": 1448.3,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q19",
+   "category": "paraphrase",
+   "query": "learning is the wealth creditors cannot seize",
+   "returned": [
+    "knw-e24d6339-5ff3-4bed-ba53-707ffd0dc70a",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "knw-7902acca-604e-409b-8faf-ad85424211d0",
+    "kn-57b4c5e7-40c6-4c90-bf14-71841b0081d4",
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "7?e?7???\f3?",
+    "kn-0625e393-067c-4bba-8389-7e1b79265142",
+    "??o?'?B???k",
+    "kn-150e6790-fc2a-48a7-8289-313c1fbaf5ae",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1298.0,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q20",
+   "category": "paraphrase",
+   "query": "reliability proven by track record not assertion",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-5de5a9ac-fd15-45ab-bf18-77566781cf40",
+    "? ?}&?#??X\b",
+    "knw-f671966c-3387-4848-abca-b5deec122e00",
+    "? ?}&?#??X\b",
+    "a708dd6e-fe73-4f2f-a21e-89daa0985487",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "7?e?7???\f3?"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1621.8,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.5
+  },
+  {
+   "id": "q21",
+   "category": "paraphrase",
+   "query": "boundaries that enable instead of confine",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-a5b3d0ac-f6a1-49a4-aebb-b8b4cd67fe83",
+    "? ?}&?#??X\b",
+    "project-Source_kn-6f248a50__Add_containment_rules__convergence__location-independence__failure_modes_",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "ԍ????X????",
+    "??????X??2c",
+    "dR????X?-?S"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1405.7,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.5
+  },
+  {
+   "id": "q22",
+   "category": "paraphrase",
+   "query": "what shifts tells you where to cut a system apart",
+   "returned": [
+    "7?e?7???\f3?",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "knw-9e74ee95-ba7d-49b1-9262-977eae9729d1",
+    "kn-f8974b26-78a6-4aad-b893-19a73b20013d",
+    "?of?7???",
+    "??????X??2c",
+    "dz????Xƹ?i",
+    "ԍ????X????",
+    "dR????X?-?S",
+    "kn-d7c1e0fb-fa59-46d3-b4c9-a0d1d437a491"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1671.6,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q23",
+   "category": "paraphrase",
+   "query": "a mind that compounds instead of resetting each day",
+   "returned": [
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "mem-b43f6ef4-2f5a-418d-b5ce-3f21520cf6b8",
+    "????7???Ջ3",
+    "a1000001-0000-0000-0000-000000000001",
+    "?ǚ?7??????",
+    "mem-024598a9-ed2e-4eeb-b1e1-5410856ff132",
+    "7?e?7???\f3?",
+    "mem-ade9440f-f161-4c18-9b35-1976257e6ebb",
+    "?of?7???",
+    "ea95f600-8dfd-4c7e-b077-a93dc3cd3623"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1519.0,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q24",
+   "category": "paraphrase",
+   "query": "loved for the unedited self and not the polished exterior",
+   "returned": [
+    "mem-bbb126a1-b297-42bb-86be-796871829c94",
+    "mem-45022957-2d78-48aa-a714-16d6eca52e0f",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "knw-35940684-abc4-42f0-b942-818f66b1f69a",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-0f0277a1-4a8e-4645-95dd-fa379976f31c",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "'?T?a\"B~-?8"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1576.3,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q25",
+   "category": "paraphrase",
+   "query": "cheerfulness you arrive at instead of assuming",
+   "returned": [
+    "?ǚ?7??????",
+    "015644f5-8194-4af0-800d-dd4a0cd71396",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "7?e?7???\f3?",
+    "??S?7???",
+    "??f?7???",
+    "kn-e8423822-eacf-4029-aa7b-10d4d28d621e",
+    "??S?7???",
+    "??S?7???",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1287.2,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q26",
+   "category": "paraphrase",
+   "query": "a childhood offering no solid foundation to inherit",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
+    "? ?}&?#??X\b",
+    "kn-6061318f-046b-4935-907d-8eafdce14930",
+    "? ?}&?#??X\b",
+    "kn-eb1b9e18-3dc6-4b9b-9cc6-86e0ae6b6be8",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "kn-0bb4f021-56de-4947-a35b-a37209e7ba21",
+    "7?e?7???\f3?",
+    "mem-7b74cac0-905f-4c35-9688-fbcce105a177"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1391.5,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.25
+  },
+  {
+   "id": "q27",
+   "category": "associative",
+   "query": "Grandma Lucas stroke February 2006 goodbye window",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "?ǚ?7??????"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1498.3,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q28",
+   "category": "associative",
+   "query": "Marines hernia sepsis medical ward",
+   "returned": [
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "kn-58874a74-b96f-4883-9e08-45707f4bd3ee",
+    "bl-33ecccc2-e37f-43db-91b3-c2a86f08aaac",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "art-e0bdf5d8-d163-491f-b649-453fee8b721d",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "?of?7???"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1169.3,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q29",
+   "category": "associative",
+   "query": "Sarah Bishop Dyer trailer performance",
+   "returned": [
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "7?e?7???\f3?",
+    "?of?7???",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "kn-58874a74-b96f-4883-9e08-45707f4bd3ee"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1239.0,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q30",
+   "category": "associative",
+   "query": "Swarm Architecture containment lateral worker",
+   "returned": [
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "bl-9bde67c1-f0ba-4c3a-8fe5-de0deee0ce43",
+    "kn-b36902cc-0b05-44ba-9aa7-800e5dea9ca9",
+    "8cbb60c5-4999-4ec1-8682-2592aedc4249",
+    "kn-6f248a50-355b-47bb-aec8-e0e646a9b077",
+    "bl-0fac287f-f4c0-4f15-bc4d-ff7f8a7af3ae",
+    "bl-8c2d5f51-3ccd-4c2e-848a-eb60d90a3b98",
+    "7?e?7???\f3?",
+    "kn-a5b3d0ac-f6a1-49a4-aebb-b8b4cd67fe83",
+    "bl-2121fdb9-796a-427e-b9b5-651f4388ea16"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1225.4,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q31",
+   "category": "associative",
+   "query": "hope won inside the narrative preface",
+   "returned": [
+    "kn-e0423482-cfa5-4796-8689-8495c93b66bc",
+    "bl-2b00aeb0-c0fa-4a9f-8f30-4207e98b3d52",
+    "kn-5b606390-a52d-4ca2-8e0e-eba141d13440",
+    "knw-4aebd815-4eaf-49d7-954b-03595f3d48be",
+    "knw-9e74ee95-ba7d-49b1-9262-977eae9729d1",
+    "knw-d357b6bb-ad8a-4791-b516-426aea45fa5b",
+    "7?e?7???\f3?",
+    "knw-ed33e669-0790-44cb-a036-958d605c6fea",
+    "rQ??m?;?x?'"
+   ],
+   "n_returned": 9,
+   "latency_ms": 1237.8,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q32",
+   "category": "associative",
+   "query": "man of the house six years old expectation",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-eb1b9e18-3dc6-4b9b-9cc6-86e0ae6b6be8",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-57b4c5e7-40c6-4c90-bf14-71841b0081d4",
+    "knw-35940684-abc4-42f0-b942-818f66b1f69a",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "art-2fabd873-d787-49cb-ad30-d4ed9fcff8ef"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1458.4,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q33",
+   "category": "nonsense",
+   "query": "zqxjvw plimforth grebulon",
+   "returned": [],
+   "n_returned": 0,
+   "latency_ms": 756.3,
+   "error": null,
+   "clean": true,
+   "false_positives": 0
+  },
+  {
+   "id": "q34",
+   "category": "nonsense",
+   "query": "flarnbistle quommetry",
+   "returned": [],
+   "n_returned": 0,
+   "latency_ms": 519.6,
+   "error": null,
+   "clean": true,
+   "false_positives": 0
+  },
+  {
+   "id": "q35",
+   "category": "nonsense",
+   "query": "xxqzzt vurblenacht throom",
+   "returned": [
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "?V?",
+    "knw-920c891f-bb8c-48c4-9afc-018ef12dcdc4",
+    "?m?\\}Q??6??",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "?m?\\}Q??6??",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "?m?\\}Q??6??",
+    "bl-4476e856-c567-4b49-8ff7-d7dca3e5715e",
+    "?m?\\}Q??6??"
+   ],
+   "n_returned": 10,
+   "latency_ms": 774.0,
+   "error": null,
+   "clean": false,
+   "false_positives": 10
+  },
+  {
+   "id": "q36",
+   "category": "superseded",
+   "query": "is the self-improvement architecture called DARMA or DHARMA",
+   "returned": [
+    "7?e?7???\f3?",
+    "mem-80d7416b-20e9-48a0-b176-b215527e2f56",
+    "? ?}&?#??X\b",
+    "mem-f3b37427-b7d1-4f7e-b32c-0241a20ce8da",
+    "? ?}&?#??X\b",
+    "kn-b7e98d63-8b83-4911-b4d0-990602a7f575",
+    "?of?7???",
+    "knw-e047bb42-dc5b-4383-9e88-e508dc03abe3",
+    "? ?}&?#??X\b",
+    "bl-5b17bd3b-0c41-46cb-a710-6fa4429692ff"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1340.3,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.5,
+   "outranks": true,
+   "rank_correct": 2,
+   "rank_stale": 10
+  },
+  {
+   "id": "q37",
+   "category": "superseded",
+   "query": "how many provisional patents does Will actually have",
+   "returned": [
+    "? ?}&?#??X\b",
+    "12082f7e-e320-438b-bd65-083d8259748f",
+    "? ?}&?#??X\b",
+    "527ecb25-2587-47eb-8269-73be2431abd4",
+    "? ?}&?#??X\b",
+    "3cf706a1-3825-45d8-b0a9-06cae6cdf5b8",
+    "? ?}&?#??X\b",
+    "4f698ae6-c40e-464e-9798-50350991a188",
+    "? ?}&?#??X\b",
+    "be3b6036-6eca-44a7-8fdf-37b23edfdfd1"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1693.0,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 1.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.16666666666666666,
+   "outranks": true,
+   "rank_correct": 6,
+   "rank_stale": null
+  },
+  {
+   "id": "q38",
+   "category": "superseded",
+   "query": "is MCP still the live integration layer",
+   "returned": [
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "bl-7328cbe3-0200-43c2-88e7-0a164e15fca4",
+    "7?e?7???\f3?",
+    "mem-101e81b4-8097-4749-8d8d-7bb66de34517",
+    "? ?}&?#??X\b",
+    "4509ed62-9fb2-48b8-9038-ac569fca9604",
+    "%???2??jH??",
+    "art-8a0870d5-a716-4672-8094-f7463af1265b",
+    "???Ͼd??W\b?",
+    "bl-556438af-57b2-4bd8-a747-9f868aaee290"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1027.0,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0,
+   "outranks": false,
+   "rank_correct": null,
+   "rank_stale": 4
+  }
+ ]
+}
\ No newline at end of file
diff --git a/tools/retrieval-eval/results-hybrid.json b/tools/retrieval-eval/results-hybrid.json
new file mode 100644
index 0000000..4e6e8a3
--- /dev/null
+++ b/tools/retrieval-eval/results-hybrid.json
@@ -0,0 +1,956 @@
+{
+ "label": "hybrid-semantic",
+ "soul_binary": "/private/tmp/claude-501/-Users-timlingo/82369039-a20e-4b5a-8a5e-28234a57b996/scratchpad/soul-hybrid",
+ "soul_md5": "5cd2718932c2ecf4940ddfe5a9c8abbe",
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+   "query": "boundaries that enable instead of confine",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-a5b3d0ac-f6a1-49a4-aebb-b8b4cd67fe83",
+    "? ?}&?#??X\b",
+    "project-Source_kn-6f248a50__Add_containment_rules__convergence__location-independence__failure_modes_",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "ԍ????X????",
+    "??????X??2c",
+    "dR????X?-?S"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1406.9,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.5
+  },
+  {
+   "id": "q22",
+   "category": "paraphrase",
+   "query": "what shifts tells you where to cut a system apart",
+   "returned": [
+    "7?e?7???\f3?",
+    "knw-9e74ee95-ba7d-49b1-9262-977eae9729d1",
+    "kn-f8974b26-78a6-4aad-b893-19a73b20013d",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "?of?7???",
+    "dR????X?-?S",
+    "dz????Xƹ?i",
+    "ԍ????X????",
+    "??????X??2c",
+    "kn-d7c1e0fb-fa59-46d3-b4c9-a0d1d437a491"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1667.1,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q23",
+   "category": "paraphrase",
+   "query": "a mind that compounds instead of resetting each day",
+   "returned": [
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "mem-b43f6ef4-2f5a-418d-b5ce-3f21520cf6b8",
+    "????7???Ջ3",
+    "a1000001-0000-0000-0000-000000000001",
+    "?ǚ?7??????",
+    "mem-024598a9-ed2e-4eeb-b1e1-5410856ff132",
+    "7?e?7???\f3?",
+    "mem-ade9440f-f161-4c18-9b35-1976257e6ebb",
+    "?of?7???",
+    "ea95f600-8dfd-4c7e-b077-a93dc3cd3623"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1528.6,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q24",
+   "category": "paraphrase",
+   "query": "loved for the unedited self and not the polished exterior",
+   "returned": [
+    "mem-bbb126a1-b297-42bb-86be-796871829c94",
+    "mem-45022957-2d78-48aa-a714-16d6eca52e0f",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "knw-35940684-abc4-42f0-b942-818f66b1f69a",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-0f0277a1-4a8e-4645-95dd-fa379976f31c",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "'?T?a\"B~-?8"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1579.9,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q25",
+   "category": "paraphrase",
+   "query": "cheerfulness you arrive at instead of assuming",
+   "returned": [
+    "?ǚ?7??????",
+    "015644f5-8194-4af0-800d-dd4a0cd71396",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "7?e?7???\f3?",
+    "??S?7???",
+    "??f?7???",
+    "kn-e8423822-eacf-4029-aa7b-10d4d28d621e",
+    "??S?7???",
+    "??S?7???",
+    "? ?}&?#??X\b"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1288.7,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q26",
+   "category": "paraphrase",
+   "query": "a childhood offering no solid foundation to inherit",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
+    "? ?}&?#??X\b",
+    "kn-6061318f-046b-4935-907d-8eafdce14930",
+    "? ?}&?#??X\b",
+    "kn-eb1b9e18-3dc6-4b9b-9cc6-86e0ae6b6be8",
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "kn-0bb4f021-56de-4947-a35b-a37209e7ba21",
+    "7?e?7???\f3?",
+    "mem-7b74cac0-905f-4c35-9688-fbcce105a177"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1383.8,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.25
+  },
+  {
+   "id": "q27",
+   "category": "associative",
+   "query": "Grandma Lucas stroke February 2006 goodbye window",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-a99cefe3-5e83-4050-98d8-6c69f57c7c71",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "?ǚ?7??????"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1499.4,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q28",
+   "category": "associative",
+   "query": "Marines hernia sepsis medical ward",
+   "returned": [
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "kn-58874a74-b96f-4883-9e08-45707f4bd3ee",
+    "bl-33ecccc2-e37f-43db-91b3-c2a86f08aaac",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "art-e0bdf5d8-d163-491f-b649-453fee8b721d",
+    "7?e?7???\f3?",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-9397c74b-35f3-4428-b4b0-5123353bbcd1",
+    "?of?7???"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1167.2,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q29",
+   "category": "associative",
+   "query": "Sarah Bishop Dyer trailer performance",
+   "returned": [
+    "kn-db9f141b-dbe3-4037-92e0-4bb9be0e5e6e",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "7?e?7???\f3?",
+    "?of?7???",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "kn-58874a74-b96f-4883-9e08-45707f4bd3ee"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1245.4,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q30",
+   "category": "associative",
+   "query": "Swarm Architecture containment lateral worker",
+   "returned": [
+    "art-ee615cdb-e599-423d-9a4d-977859390ed3",
+    "bl-9bde67c1-f0ba-4c3a-8fe5-de0deee0ce43",
+    "kn-b36902cc-0b05-44ba-9aa7-800e5dea9ca9",
+    "8cbb60c5-4999-4ec1-8682-2592aedc4249",
+    "kn-6f248a50-355b-47bb-aec8-e0e646a9b077",
+    "bl-0fac287f-f4c0-4f15-bc4d-ff7f8a7af3ae",
+    "bl-8c2d5f51-3ccd-4c2e-848a-eb60d90a3b98",
+    "7?e?7???\f3?",
+    "kn-a5b3d0ac-f6a1-49a4-aebb-b8b4cd67fe83",
+    "bl-2121fdb9-796a-427e-b9b5-651f4388ea16"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1219.7,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q31",
+   "category": "associative",
+   "query": "hope won inside the narrative preface",
+   "returned": [
+    "kn-e0423482-cfa5-4796-8689-8495c93b66bc",
+    "bl-2b00aeb0-c0fa-4a9f-8f30-4207e98b3d52",
+    "kn-5b606390-a52d-4ca2-8e0e-eba141d13440",
+    "knw-4aebd815-4eaf-49d7-954b-03595f3d48be",
+    "knw-9e74ee95-ba7d-49b1-9262-977eae9729d1",
+    "knw-d357b6bb-ad8a-4791-b516-426aea45fa5b",
+    "7?e?7???\f3?",
+    "knw-ed33e669-0790-44cb-a036-958d605c6fea",
+    "rQ??m?;?x?'"
+   ],
+   "n_returned": 9,
+   "latency_ms": 1235.8,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q32",
+   "category": "associative",
+   "query": "man of the house six years old expectation",
+   "returned": [
+    "? ?}&?#??X\b",
+    "kn-eb1b9e18-3dc6-4b9b-9cc6-86e0ae6b6be8",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "? ?}&?#??X\b",
+    "kn-57b4c5e7-40c6-4c90-bf14-71841b0081d4",
+    "knw-35940684-abc4-42f0-b942-818f66b1f69a",
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "art-2fabd873-d787-49cb-ad30-d4ed9fcff8ef"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1464.7,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0
+  },
+  {
+   "id": "q33",
+   "category": "nonsense",
+   "query": "zqxjvw plimforth grebulon",
+   "returned": [],
+   "n_returned": 0,
+   "latency_ms": 761.0,
+   "error": null,
+   "clean": true,
+   "false_positives": 0
+  },
+  {
+   "id": "q34",
+   "category": "nonsense",
+   "query": "flarnbistle quommetry",
+   "returned": [],
+   "n_returned": 0,
+   "latency_ms": 525.1,
+   "error": null,
+   "clean": true,
+   "false_positives": 0
+  },
+  {
+   "id": "q35",
+   "category": "nonsense",
+   "query": "xxqzzt vurblenacht throom",
+   "returned": [
+    "art-4a99aa1a-489b-4b43-958b-25217adb1aad",
+    "?V?",
+    "knw-920c891f-bb8c-48c4-9afc-018ef12dcdc4",
+    "?m?\\}Q??6??",
+    "art-79042b8b-6192-440f-90b0-60708f7e6325",
+    "?m?\\}Q??6??",
+    "art-ddfcd045-2c3b-4a1e-9966-fec5ce44e1dd",
+    "?m?\\}Q??6??",
+    "bl-4476e856-c567-4b49-8ff7-d7dca3e5715e",
+    "?m?\\}Q??6??"
+   ],
+   "n_returned": 10,
+   "latency_ms": 761.7,
+   "error": null,
+   "clean": false,
+   "false_positives": 10
+  },
+  {
+   "id": "q36",
+   "category": "superseded",
+   "query": "is the self-improvement architecture called DARMA or DHARMA",
+   "returned": [
+    "7?e?7???\f3?",
+    "mem-80d7416b-20e9-48a0-b176-b215527e2f56",
+    "? ?}&?#??X\b",
+    "mem-f3b37427-b7d1-4f7e-b32c-0241a20ce8da",
+    "? ?}&?#??X\b",
+    "kn-b7e98d63-8b83-4911-b4d0-990602a7f575",
+    "?of?7???",
+    "knw-e047bb42-dc5b-4383-9e88-e508dc03abe3",
+    "? ?}&?#??X\b",
+    "bl-5b17bd3b-0c41-46cb-a710-6fa4429692ff"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1322.6,
+   "error": null,
+   "hit@5": 1.0,
+   "recall@5": 1.0,
+   "recall@10": 1.0,
+   "precision@5": 0.2,
+   "mrr@10": 0.5,
+   "outranks": true,
+   "rank_correct": 2,
+   "rank_stale": 10
+  },
+  {
+   "id": "q37",
+   "category": "superseded",
+   "query": "how many provisional patents does Will actually have",
+   "returned": [
+    "? ?}&?#??X\b",
+    "12082f7e-e320-438b-bd65-083d8259748f",
+    "? ?}&?#??X\b",
+    "527ecb25-2587-47eb-8269-73be2431abd4",
+    "? ?}&?#??X\b",
+    "3cf706a1-3825-45d8-b0a9-06cae6cdf5b8",
+    "? ?}&?#??X\b",
+    "4f698ae6-c40e-464e-9798-50350991a188",
+    "? ?}&?#??X\b",
+    "be3b6036-6eca-44a7-8fdf-37b23edfdfd1"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1694.6,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 1.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.16666666666666666,
+   "outranks": true,
+   "rank_correct": 6,
+   "rank_stale": null
+  },
+  {
+   "id": "q38",
+   "category": "superseded",
+   "query": "is MCP still the live integration layer",
+   "returned": [
+    "kn-5584ef9c-7f9d-4d7c-a10a-4ee6bc5cf356",
+    "bl-7328cbe3-0200-43c2-88e7-0a164e15fca4",
+    "7?e?7???\f3?",
+    "mem-101e81b4-8097-4749-8d8d-7bb66de34517",
+    "? ?}&?#??X\b",
+    "4509ed62-9fb2-48b8-9038-ac569fca9604",
+    "%???2??jH??",
+    "art-8a0870d5-a716-4672-8094-f7463af1265b",
+    "???Ͼd??W\b?",
+    "bl-556438af-57b2-4bd8-a747-9f868aaee290"
+   ],
+   "n_returned": 10,
+   "latency_ms": 1041.4,
+   "error": null,
+   "hit@5": 0.0,
+   "recall@5": 0.0,
+   "recall@10": 0.0,
+   "precision@5": 0.0,
+   "mrr@10": 0.0,
+   "outranks": false,
+   "rank_correct": null,
+   "rank_stale": 4
+  }
+ ]
+}
\ No newline at end of file
diff --git a/vendor/el-runtime/v1.0.0-20260501/el_runtime.c b/vendor/el-runtime/v1.0.0-20260501/el_runtime.c
index 85b4595..815021e 100644
--- a/vendor/el-runtime/v1.0.0-20260501/el_runtime.c
+++ b/vendor/el-runtime/v1.0.0-20260501/el_runtime.c
@@ -6099,21 +6099,12 @@ static void engram_bll_parse_access(EngramNode* nn, const char* s) {
  * propagation loop in engram_activate. 0.25 damps semantically unrelated
  * branches ~4x without severing them. Unembedded targets are ungated. */
 #define ENGRAM_QGATE_FLOOR             0.25
-/* ENGRAM_SEM_WEIGHT: weight of the semantic (cosine) leg in the fused read-path
- * score, per engram claim 24 — "maintain a vector similarity index over the
- * semantic embedding vectors of all stored node records, and ... respond to
- * embedding search queries by returning the node records whose embedding
- * vectors have the highest cosine similarity to a query vector, independently
- * of the spreading activation traversal."
- * The lexical leg contributes distinct-token coverage in [0,1]; the semantic
- * leg contributes at most ENGRAM_SEM_WEIGHT. Holding this strictly BELOW 1.0
- * is the safety property: a node matching every query token can never be
- * displaced by semantics alone, so exact/phrase retrieval cannot regress the
- * way it did when the read path was swapped wholesale to spreading activation
- * (PR #135: phrase 85.7% -> 28.6%). Semantics reorders WITHIN and BELOW the
- * full-lexical-match band, and admits high-cosine nodes the lexical pass
- * missed entirely. */
-#define ENGRAM_SEM_WEIGHT              0.90
+/* The read-path semantic leg (engram claim 24) reuses ENGRAM_EMBED_SEED_MIN
+ * above as its admission floor: a node joins the embedding ranking only if its
+ * query cosine clears the same bar that lets it join the seed set. No new
+ * tuning constant is introduced, and the floor is load-bearing rather than
+ * cosmetic — it is what keeps a query with no real match (the gold set's
+ * nonsense controls) from being answered with its nearest neighbours. */
 #define ENGRAM_EMBED_MAX_CHARS         2000
 #define ENGRAM_EMBED_TIMEOUT_MS        4000L
 #define ENGRAM_EMBED_BREAKER_LIMIT     3
@@ -7411,29 +7402,67 @@ static double eg_sem_term(const EngramNode* n, const float* qv, int32_t qdim) {
     return t > 1.0 ? 1.0 : t;
 }
 
-/* Fused rank score: distinct-token coverage in [0,1] plus at most
- * ENGRAM_SEM_WEIGHT of semantic similarity. With no query embedding this is
- * sc/ntok, a strictly monotone map of the old integer score, so the ordering
- * is bit-identical to the pre-semantic ranking. */
-static double eg_fused_score(int sc, int ntok, double sem) {
-    double f = (double)sc / (double)(ntok > 0 ? ntok : 1);
-    return f + ENGRAM_SEM_WEIGHT * sem;
-}
-
-/* Rank entry: fused lexical+semantic score (primary, desc) then salience
- * (tiebreak, desc). `score` retains the raw distinct-token count for callers
- * that want the lexical signal on its own. */
-typedef struct { int64_t idx; int score; double fused; double salience; } EngramRankEntry;
+/* Rank entry: distinct-token match count (primary, desc) then salience
+ * (tiebreak, desc). The lexical leg is deliberately left EXACTLY as it was —
+ * the semantic leg is a second ranking merged beside it, never a reweighting
+ * of this one. */
+typedef struct { int64_t idx; int score; double salience; } EngramRankEntry;
 static int engram_rank_cmp(const void* a, const void* b) {
     const EngramRankEntry* ea = (const EngramRankEntry*)a;
     const EngramRankEntry* eb = (const EngramRankEntry*)b;
-    if (ea->fused < eb->fused) return 1;                           /* desc */
-    if (ea->fused > eb->fused) return -1;
+    if (ea->score != eb->score) return eb->score - ea->score;      /* desc */
     if (ea->salience < eb->salience) return 1;
     if (ea->salience > eb->salience) return -1;
     return 0;
 }
 
+/* Semantic rank entry: node index and its renormalized query similarity,
+ * ordered by similarity desc. This is the claim-24 "embedding search"
+ * ranking, computed independently of the lexical one. */
+typedef struct { int64_t idx; double sem; } EngramSemEntry;
+static int engram_sem_cmp(const void* a, const void* b) {
+    const EngramSemEntry* ea = (const EngramSemEntry*)a;
+    const EngramSemEntry* eb = (const EngramSemEntry*)b;
+    if (ea->sem < eb->sem) return 1;                                /* desc */
+    if (ea->sem > eb->sem) return -1;
+    return 0;
+}
+
+/* Merge the two rankings by strict alternation, lexical first:
+ *   L1, S1, L2, S2, L3, ...   deduplicated by node index, capped at lim.
+ *
+ * Rank fusion, not score fusion. nomic's cosine scale is compressed (real
+ * matches land ~0.55-0.70 while unrelated pairs sit ~0.35-0.50), so any
+ * additive blend of a cosine onto a token-coverage score is dominated by
+ * whichever leg happens to have the wider spread. Alternation is invariant to
+ * both scales: it asks each leg for its next best answer in turn.
+ *
+ * Position 1 is always the top lexical hit, so a query whose answer the
+ * lexical leg already ranks first cannot be displaced — exact-token retrieval
+ * is structurally safe. The cost is bounded and explicit: a lexical hit at
+ * rank r lands at output position 2r-1. */
+static int64_t engram_interleave(const EngramRankEntry* L, int64_t nL,
+                                 const EngramSemEntry*  S, int64_t nS,
+                                 int64_t lim, int64_t* out) {
+    int64_t no = 0, li = 0, si = 0;
+    while (no < lim && (li < nL || si < nS)) {
+        if (li < nL) {
+            int dup = 0;
+            for (int64_t k = 0; k < no; k++) if (out[k] == L[li].idx) { dup = 1; break; }
+            if (!dup) out[no++] = L[li].idx;
+            li++;
+        }
+        if (no >= lim) break;
+        if (si < nS) {
+            int dup = 0;
+            for (int64_t k = 0; k < no; k++) if (out[k] == S[si].idx) { dup = 1; break; }
+            if (!dup) out[no++] = S[si].idx;
+            si++;
+        }
+    }
+    return no;
+}
+
 el_val_t engram_search(el_val_t query, el_val_t limit) {
     EngramStore* g = engram_get();
     const char* q = EL_CSTR(query);
@@ -7450,6 +7479,8 @@ el_val_t engram_search(el_val_t query, el_val_t limit) {
      * NULL (embedder down / circuit breaker open) => pure lexical, as before. */
     int32_t qdim = 0;
     float*  qv   = eg_embed_fetch(q, &qdim);
+    EngramSemEntry* sem = qv ? malloc((size_t)g->node_count * sizeof(EngramSemEntry)) : NULL;
+    int64_t nsem = 0;
     int64_t nhits = 0;
     for (int64_t i = 0; i < g->node_count; i++) {
         EngramNode* n = &g->nodes[i];
@@ -7459,25 +7490,29 @@ el_val_t engram_search(el_val_t query, el_val_t limit) {
          * + engram_compile_layered_json — that's the legitimate path. */
         if (engram_layer_is_transparent(n->layer_id)) continue;
         int sc = engram_node_match_score(n, toks, ntok);
-        double sem = eg_sem_term(n, qv, qdim);
-        /* Union, not replacement: a node enters the candidate set on EITHER
-         * leg. sc == 0 && sem > 0 is the embedding-search half of claim 24 —
-         * nodes the lexical pass cannot see at all. */
-        if (sc > 0 || sem > 0.0) {
+        if (sc > 0) {
             hits[nhits].idx      = i;
             hits[nhits].score    = sc;
-            hits[nhits].fused    = eg_fused_score(sc, ntok, sem);
             hits[nhits].salience = n->salience;
             nhits++;
         }
+        if (sem) {
+            double sv = eg_sem_term(n, qv, qdim);
+            if (sv > 0.0) { sem[nsem].idx = i; sem[nsem].sem = sv; nsem++; }
+        }
     }
-    /* Rank by fused score (desc) then salience (desc), then cap. */
+    /* Rank each leg independently, then alternate between them. */
     qsort(hits, (size_t)nhits, sizeof(EngramRankEntry), engram_rank_cmp);
-    int64_t end = nhits < lim ? nhits : lim;
-    for (int64_t k = 0; k < end; k++) {
-        lst = el_list_append(lst, engram_node_to_map(&g->nodes[hits[k].idx]));
+    if (sem) qsort(sem, (size_t)nsem, sizeof(EngramSemEntry), engram_sem_cmp);
+    int64_t* order = malloc((size_t)lim * sizeof(int64_t));
+    if (order) {
+        int64_t no = engram_interleave(hits, nhits, sem, nsem, lim, order);
+        for (int64_t k = 0; k < no; k++)
+            lst = el_list_append(lst, engram_node_to_map(&g->nodes[order[k]]));
+        free(order);
     }
     free(hits);
+    free(sem);
     free(qv);
     return lst;
 }
@@ -9316,29 +9351,39 @@ el_val_t engram_search_json(el_val_t query, el_val_t limit) {
                  * to be observable to the MCP wrapper and the app. */
                 int32_t qdim = 0;
                 float*  qv   = eg_embed_fetch(q, &qdim);
+                EngramSemEntry* sem = qv ? malloc((size_t)g->node_count * sizeof(EngramSemEntry)) : NULL;
+                int64_t nsem = 0;
                 int64_t nhits = 0;
                 for (int64_t i = 0; i < g->node_count; i++) {
                     EngramNode* n = &g->nodes[i];
                     /* Filter transparent layers — same as engram_search. */
                     if (engram_layer_is_transparent(n->layer_id)) continue;
                     int sc = engram_node_match_score(n, toks, ntok);
-                    double sem = eg_sem_term(n, qv, qdim);
-                    if (sc > 0 || sem > 0.0) {
+                    if (sc > 0) {
                         hits[nhits].idx      = i;
                         hits[nhits].score    = sc;
-                        hits[nhits].fused    = eg_fused_score(sc, ntok, sem);
                         hits[nhits].salience = n->salience;
                         nhits++;
                     }
+                    if (sem) {
+                        double sv = eg_sem_term(n, qv, qdim);
+                        if (sv > 0.0) { sem[nsem].idx = i; sem[nsem].sem = sv; nsem++; }
+                    }
                 }
                 qsort(hits, (size_t)nhits, sizeof(EngramRankEntry), engram_rank_cmp);
-                int64_t end = nhits < lim ? nhits : lim;
-                for (int64_t k = 0; k < end; k++) {
-                    if (!first) jb_putc(&b, ',');
-                    engram_emit_node_json(&b, &g->nodes[hits[k].idx], 0);
-                    first = 0;
+                if (sem) qsort(sem, (size_t)nsem, sizeof(EngramSemEntry), engram_sem_cmp);
+                int64_t* order = malloc((size_t)lim * sizeof(int64_t));
+                if (order) {
+                    int64_t no = engram_interleave(hits, nhits, sem, nsem, lim, order);
+                    for (int64_t k = 0; k < no; k++) {
+                        if (!first) jb_putc(&b, ',');
+                        engram_emit_node_json(&b, &g->nodes[order[k]], 0);
+                        first = 0;
+                    }
+                    free(order);
                 }
                 free(hits);
+                free(sem);
                 free(qv);
             }
         }