diff --git a/docs/research/pre_work_error_ledger.md b/docs/research/pre_work_error_ledger.md
index 8ce219be..9f0235e3 100644
--- a/docs/research/pre_work_error_ledger.md
+++ b/docs/research/pre_work_error_ledger.md
@@ -84,6 +84,7 @@ For large architecture or release work, also read:
 | ERR-051 | Privacy redaction can replace executable numeric test fixtures with bare placeholder identifiers such as `REDACTED_YEAR`, causing `NameError` before a regression reaches its target. | observed 2026-07-12 | Public tests must use generic fixtures (for example 1990) or quoted placeholders only; run `rg -n "REDACTED_YEAR" tests` before release and repair executable occurrences. |
 | ERR-052 | Text-only privacy scanning cannot distinguish a harmless quoted placeholder from a bare Python identifier that will fail at runtime. | mitigated 2026-07-13 | `public_release_privacy_scan.py` parses shipped Python files and rejects executable `REDACTED_*` names; keep the AST regression test. |
 | ERR-053 | A parity manifest could label an external engine `official_verified` without a raw artifact, hash, or calculation settings, making claimed oracle closure unverifiable. | mitigated 2026-07-13 | `three_engine_parity_replay_validator.py` requires raw artifact existence, SHA-256 and settings for verified/imported external engines; otherwise parity is `invalid`. |
+| ERR-054 | Candidate-time sensitivity scanning used the legacy `varga` CLI, so D4/D24/D30 could appear unavailable despite being supported by `varga-full`. | resolved 2026-07-13 | Scanner calls `varga-full --divisions D4,D9,D10,D24,D30` once per candidate and reads its canonical `Ascendant.sign` fields. |
 
 ## Fragment Sweep Command Set
 
diff --git a/scripts/candidate_time_sensitivity_scan.py b/scripts/candidate_time_sensitivity_scan.py
index 173017b7..295ed4b0 100644
--- a/scripts/candidate_time_sensitivity_scan.py
+++ b/scripts/candidate_time_sensitivity_scan.py
@@ -14,43 +14,31 @@ from typing import Any
 
 ROOT = Path(__file__).resolve().parents[1]
 ENGINE = ROOT / "scripts" / "jyotish_engine.py"
-_VARGAS = ("d4", "d9", "d10", "d24", "d30")
+_VARGAS = ("D4", "D9", "D10", "D24", "D30")
 
 
 def _engine_json(command: str, payload: dict[str, Any], *, timeout: int = 20) -> dict[str, Any]:
     args = ["python3", str(ENGINE), command]
     for key in ("year", "month", "day", "hour", "minute", "lat", "lon", "tz"):
         args.extend([f"--{key}", str(payload[key])])
-    if command == "varga":
-        args.append(f"--{payload['varga']}")
+    if command == "varga-full":
+        args.extend(["--divisions", ",".join(_VARGAS)])
     completed = subprocess.run(args, cwd=ROOT, capture_output=True, text=True, timeout=timeout, check=True)
     return json.loads(completed.stdout)
 
 
-def _varga_ascendant(payload: dict[str, Any], varga: str) -> str | None:
-    try:
-        raw = _engine_json("varga", {**payload, "varga": varga})
-    except subprocess.CalledProcessError:
-        return None
-    charts = raw.get("divisional_charts", {})
-    for chart in charts.values():
-        if isinstance(chart, dict):
-            return chart.get("ascendant")
-    return None
-
-
 def _all_varga_ascendants(payload: dict[str, Any]) -> dict[str, str | None]:
-    values = {varga.upper(): None for varga in _VARGAS}
+    values = {varga: None for varga in _VARGAS}
     try:
-        raw = _engine_json("varga", {**payload, "varga": "all"})
+        raw = _engine_json("varga-full", payload)
     except subprocess.CalledProcessError:
         return values
-    for name, chart in (raw.get("divisional_charts") or {}).items():
+    for name, chart in raw.items():
         if not isinstance(chart, dict):
             continue
         for varga in _VARGAS:
-            if name.startswith(varga.upper() + "_"):
-                values[varga.upper()] = chart.get("ascendant")
+            if name.startswith(varga + "_"):
+                values[varga] = (chart.get("Ascendant") or {}).get("sign")
     return values
 
 
diff --git a/tests/test_candidate_time_sensitivity_scan.py b/tests/test_candidate_time_sensitivity_scan.py
index d6507c10..da8a0476 100644
--- a/tests/test_candidate_time_sensitivity_scan.py
+++ b/tests/test_candidate_time_sensitivity_scan.py
@@ -8,10 +8,11 @@ def test_scanner_reports_real_divisional_transitions(monkeypatch):
             return {"ascendant": {"sign": "Leo", "degree_in_sign": 10 + minute / 100}}
         ascendant = "Aries" if minute % 2 else "Taurus"
         return {
-            "divisional_charts": {
-                "D9_Navamsa": {"ascendant": ascendant},
-                "D10_Dasamsa": {"ascendant": ascendant},
-            }
+            "D4_Turyamsa": {"Ascendant": {"sign": ascendant}},
+            "D9_Navamsa": {"Ascendant": {"sign": ascendant}},
+            "D10_Dasamsa": {"Ascendant": {"sign": ascendant}},
+            "D24_Siddhamsa": {"Ascendant": {"sign": ascendant}},
+            "D30_Trimsamsa": {"Ascendant": {"sign": ascendant}},
         }
 
     monkeypatch.setattr(scanner, "_engine_json", fake_engine)