diff --git a/.claude/skills/unifi-wifi/SKILL.md b/.claude/skills/unifi-wifi/SKILL.md
index edd60ca..7443395 100644
--- a/.claude/skills/unifi-wifi/SKILL.md
+++ b/.claude/skills/unifi-wifi/SKILL.md
@@ -81,7 +81,11 @@ controller knows and making prioritized, validated changes. Built for any site;
 These read each AP directly (controller hides this data). All take `<site> [ap-ssh-vault-path]`,
 use sshpass-or-SSH_ASKPASS auth, and must run in the **foreground**:
 ```bash
-# AP-to-AP SNR neighbor matrix (/proc/ui_neighbor) -> redundancy = data-backed disable candidates
+# AP-to-AP SNR neighbor matrix (/proc/ui_neighbor) -> redundancy = data-backed disable candidates.
+# Set NBR_JSON to also emit a machine-readable adjacency, then feed it to optimize-radios.sh:
+NBR_JSON=.claude/tmp/<site>-nbr.json bash .claude/skills/unifi-wifi/scripts/neighbor-collect.sh cascades
+NEIGHBOR_JSON=.claude/tmp/<site>-nbr.json bash .claude/skills/unifi-wifi/scripts/optimize-radios.sh cascades 14 ng
+#   ^ optimize-radios uses the measured SNR overlap (not the sparse roam graph) -> real DISABLE list.
 bash .claude/skills/unifi-wifi/scripts/neighbor-collect.sh cascades [vault-path] [snr_min=20]
 # measured per-channel busy%/noise per AP -> cleanest-channel plan (iw survey dump)
 bash .claude/skills/unifi-wifi/scripts/survey-collect.sh cascades [vault-path]
diff --git a/.claude/skills/unifi-wifi/scripts/neighbor-collect.sh b/.claude/skills/unifi-wifi/scripts/neighbor-collect.sh
index acce1ba..5b8571c 100644
--- a/.claude/skills/unifi-wifi/scripts/neighbor-collect.sh
+++ b/.claude/skills/unifi-wifi/scripts/neighbor-collect.sh
@@ -26,6 +26,8 @@ VAULT="$REPO/.claude/scripts/vault.sh"; UOS="$REPO/.claude/scripts/uos-mongo.sh"
 HOST="${UOS_HOST:-172.16.3.29}"; PORT="${UOS_HTTPS_PORT:-11443}"
 SITEARG="${1:?usage: neighbor-collect.sh <site-name|id> [ap-ssh-vault-path] [snr_min]}"
 VP="${2:-clients/cascades-tucson/unifi-ap-ssh}"; SNR_MIN="${3:-20}"
+NBR_JSON="${NBR_JSON:-}"   # if set, also write a machine-readable adjacency {ap:{band:{nbr:snr}}} here
+                           # (consumed by optimize-radios.sh via NEIGHBOR_JSON for data-backed disables)
 TMP="$(mktemp -d)"; trap 'rm -rf "$TMP"' EXIT
 
 # --- controller creds + login (RW admin reads fine) ---
@@ -97,10 +99,11 @@ done < "$TMP/aps.tsv"
 echo "" >&2
 
 # --- parse + map + emit adjacency matrix + redundancy summary ---
-python - "$RAW" "$TMP/macmap.json" "$TMP/bssmap.json" "$SNR_MIN" <<'PY'
+python - "$RAW" "$TMP/macmap.json" "$TMP/bssmap.json" "$SNR_MIN" "${NBR_JSON:-NONE}" <<'PY'
 import json,re,sys
 raw=open(sys.argv[1],encoding='utf-8',errors='replace').read().splitlines()
 macmap=json.load(open(sys.argv[2])); bssmap=json.load(open(sys.argv[3])); SNR_MIN=int(sys.argv[4])
+OUTJSON=sys.argv[5] if len(sys.argv)>5 else 'NONE'
 BN={'0':'2.4','1':'5','2':'6'}; EB={'2.4ghz':'2.4','5ghz':'5','6ghz':'6'}
 # edges[(src, band)] = {neighbor_name: best_snr}; presence[(src,band)] = set(names) from ess_ap_list
 edges={}; presence={}; cur=None; mode=None; band=None
@@ -153,6 +156,14 @@ for b in ('2.4','5','6'):
     print(f"\n-- {b}GHz: {len(redund)}/{len(rows)} APs have >=2 strong neighbors (disable/power-down candidates) --")
     for cnt,ap,strong in sorted(redund,reverse=True)[:12]:
         print(f"   {ap}: {cnt} strong ({', '.join(strong[:4])}{'...' if len(strong)>4 else ''})")
+
+# machine-readable adjacency for optimize-radios.sh: {ap_name: {band: {neighbor_name: snr}}}
+if OUTJSON!='NONE':
+    adj={}
+    for (src,b),nbrs in edges.items():
+        adj.setdefault(src,{})[b]=nbrs
+    json.dump(adj, open(OUTJSON,'w'))
+    print(f"\n[INFO] wrote adjacency JSON -> {OUTJSON} ({len(adj)} APs) — feed to optimize-radios.sh via NEIGHBOR_JSON")
 PY
 echo ""
 echo "[next] feed the redundancy list to optimize-radios.sh; validate per-zone with watch-ap.sh before any --apply."
diff --git a/.claude/skills/unifi-wifi/scripts/optimize-radios.sh b/.claude/skills/unifi-wifi/scripts/optimize-radios.sh
index e94f8f4..6eee683 100644
--- a/.claude/skills/unifi-wifi/scripts/optimize-radios.sh
+++ b/.claude/skills/unifi-wifi/scripts/optimize-radios.sh
@@ -29,10 +29,35 @@ if [[ "$arg" =~ ^[0-9a-f]{24}$ ]]; then SITE="$arg"; else
   [ -n "$SITE" ] || { echo "[ERROR] no site matching '$arg'"; exit 1; }
 fi
 case "$BAND" in ng) RSSI_OK=-68; REDUN=$REDUN_NG;; na) RSSI_OK=-72; REDUN=$REDUN_OTHER;; 6e) RSSI_OK=-75; REDUN=$REDUN_OTHER;; *) echo "band must be ng|na|6e"; exit 1;; esac
+# Coverage-adjacency source: the measured AP-to-AP SNR matrix from neighbor-collect.sh (NEIGHBOR_JSON)
+# is preferred — it's dense + accurate. The roam graph is the fallback but is sparse in sites with
+# stationary clients (e.g. senior living), which is why disables came back 0 there. NBR_SNR_MIN = the
+# SNR (dB) at which a managed-AP neighbor counts as real overlap (neighbor-collect default 20).
+NBR_SNR_MIN="${NBR_SNR_MIN:-20}"; STRONG_RAW=""; ADJ_SRC="roam-graph (sparse w/ stationary clients)"
+if [ -n "${NEIGHBOR_JSON:-}" ] && [ -f "${NEIGHBOR_JSON:-}" ]; then
+  # Precompute bidirectional strong-overlap NAME pairs HERE (not inside mongo JS — a large embedded
+  # object literal crashes the old mongo shell). Emit a compact ';'-joined, tab-internal flat string.
+  STRONG_RAW="$(python - "$NEIGHBOR_JSON" "$NBR_SNR_MIN" <<'PY'
+import json,sys
+nbr=json.load(open(sys.argv[1])); MIN=int(sys.argv[2])
+def ms(a,b):  # max SNR a->b over any band
+    o=nbr.get(a,{}); return max([o.get(bd,{}).get(b,-1) for bd in ('2.4','5','6')]+[-1])
+aps=list(nbr); out=[]
+for i,a in enumerate(aps):
+    for b in aps[i+1:]:
+        if ms(a,b)>=MIN and ms(b,a)>=MIN:   # bidirectional overlap
+            out.append(a.replace('"','').replace('\\','')+'\t'+b.replace('"','').replace('\\',''))
+print(';'.join(out))
+PY
+)"
+  ADJ_SRC="neighbor SNR matrix /proc/ui_neighbor (SNR>=$NBR_SNR_MIN)"
+fi
 echo "[INFO] site=$SITE band=$BAND window=${DAYS}d  rssi>=$RSSI_OK roam>=$ROAM_MIN cap=${CAP}% need_neighbors=$REDUN zone_cap=${ZPCT}%"
+echo "[INFO] coverage adjacency source: $ADJ_SRC"
 
 cat <<JS | bash "$UOS" 2>&1 | grep -viE 'pq.html|post-quantum|store now|server may need'
 var SITE='$SITE',DAYS=$DAYS,BAND='$BAND',RSSI_OK=$RSSI_OK,ROAM_MIN=$ROAM_MIN,CAP=$CAP,ZPCT=$ZPCT,REDUN=$REDUN;
+var STRONG_RAW="$STRONG_RAW";   // ';'-joined "nameA<tab>nameB" bidirectional strong-overlap pairs, or ""
 var ace=db.getSiblingDB('ace'),st=db.getSiblingDB('ace_stat');
 var since=new Date().getTime()-DAYS*86400000;
 // identity + zone
@@ -73,6 +98,18 @@ Object.keys(prof).forEach(function(A){ strong[A]={};
     if(Math.min(ab,ba)>=ROAM_MIN && p25((rs[A+'>'+B]||[]).concat(rs[B+'>'+A]||[]))>=RSSI_OK) strong[A][B]=1;
   });
 });
+// PREFERRED: rebuild adjacency from the measured AP-to-AP SNR matrix (neighbor-collect / /proc/ui_neighbor)
+// when provided — denser + accurate. Overlap is bidirectional: A hears B AND B hears A, both >= NBR_SNR_MIN
+// on any band (physical overlap is band-independent). This is what makes DISABLE decisions data-backed in
+// sites where the roam graph is too sparse (stationary clients).
+if(STRONG_RAW){
+  var nm2mac={}; for(var m in name){ nm2mac[name[m]]=m; }
+  Object.keys(prof).forEach(function(A){ strong[A]={}; });
+  STRONG_RAW.split(';').forEach(function(pr){ if(!pr)return; var t=pr.split('\t');
+    var A=nm2mac[t[0]], B=nm2mac[t[1]];
+    if(A&&B&&prof[A]&&prof[B]){ strong[A][B]=1; strong[B][A]=1; }   // bidirectional overlap proven by SNR
+  });
+}
 // greedy capacity-aware disable
 var aps=Object.keys(prof), active={}; aps.forEach(function(a){active[a]=true;});
 var projCu={}; aps.forEach(function(a){projCu[a]=prof[a].cu;});           // projected utilization (grows as we shift load)
diff --git a/clients/cascades-tucson/session-logs/2026-06/2026-06-15-howard-cascades-wifi-rf-audit.md b/clients/cascades-tucson/session-logs/2026-06/2026-06-15-howard-cascades-wifi-rf-audit.md
index eee4b39..e66d814 100644
--- a/clients/cascades-tucson/session-logs/2026-06/2026-06-15-howard-cascades-wifi-rf-audit.md
+++ b/clients/cascades-tucson/session-logs/2026-06/2026-06-15-howard-cascades-wifi-rf-audit.md
@@ -301,3 +301,33 @@ and fails ("No such file or directory") on Windows. Use `python - "$TMP/x" <<'PY
 
 Coord: collectors+status announce c3ccaa07. Next: wire neighbor-collect redundancy into
 optimize-radios.sh; Floor-4 2.4 power-down pilot (still nothing applied to live radios).
+
+---
+
+## Update: 00:05 PT (06-16) — wired neighbor SNR matrix into optimize-radios.sh (disables now data-backed)
+
+Closed the last follow-up: the AP-to-AP SNR matrix now DRIVES optimize-radios.sh disable decisions.
+- neighbor-collect.sh: `NBR_JSON=<path>` env now also emits machine-readable adjacency
+  `{ap:{band:{nbr:snr}}}` (74 APs, ~21KB).
+- optimize-radios.sh: `NEIGHBOR_JSON=<path>` env now uses the measured bidirectional SNR overlap
+  (A hears B AND B hears A, SNR>=NBR_SNR_MIN default 20, any band) as the coverage-adjacency source,
+  replacing the sparse roam graph. Roam graph remains the fallback when NEIGHBOR_JSON unset.
+
+Workflow:
+  NBR_JSON=.claude/tmp/cascades-nbr.json bash .../neighbor-collect.sh cascades
+  NEIGHBOR_JSON=.claude/tmp/cascades-nbr.json bash .../optimize-radios.sh cascades 14 ng
+
+VALIDATED on Cascades 2.4GHz: roam-graph -> POWER-DOWN 74 / DISABLE 0; neighbor-SNR -> POWER-DOWN 65
+/ **DISABLE 9** / KEEP 1, est. 621% interference-airtime removed, each disable listing its covering
+neighbors (127->128; 229->128; 248->348; 330->128; 445->347/348/247; 428->128; 622->505/615/517;
+Kitchen->Memcare TV room; salon->128). The disable capability we concluded was impossible is now
+data-backed for any site with a neighbor-collect run.
+
+IMPL NOTE (bug fixed): injecting the full matrix as a JS object literal CRASHED the old mongo shell
+(SpiderMonkey GC-during-compile on a ~21KB literal). Fix: precompute bidirectional strong NAME-pairs
+in python, inject a compact ';'-joined flat STRING, parse in JS. (Pattern for any large data ->
+mongo-shell injection: flat string, not object literal.)
+
+Still gated: apply-radio.sh has NO disable action (power/channel/width only); disables remain a
+reviewed, per-zone, live-validated MANUAL step. Coord: wire announce 68cae757.
+Remaining open: Floor-4 2.4 power-down pilot (still nothing applied to live radios).