Bind renewal dates to renewal clauses

agent.py

@@ -44,8 +44,8 @@ ALLOWED_BROWSER_MEDIA_TYPES = (
 )
 DATE_RE = re.compile(r"\b(20\d{2}-\d{2}-\d{2})\b")
 RENEWAL_DATE_RE = re.compile(
-    r"\brenew(?:s|al|ed|ing)?\b[^.\n;]{0,160}\b(?:on|as\s+of|effective|date|until|through)\s+"
-    r"(20\d{2}-\d{2}-\d{2})\b",
+    r"\brenew(?:s|al|ed|ing)?\b[^.\n;]{0,160}?\b(?:on|as\s+of|effective(?:\s+on)?|"
+    r"date(?:\s+is)?|until|through)\b\s*:?\s*(20\d{2}-\d{2}-\d{2})\b",
     re.IGNORECASE,
 )
 RENEWAL_RE = re.compile(r"\brenew(?:s|al|ed|ing)?\b", re.IGNORECASE)
@@ -76,7 +76,7 @@ class ContractClockStudioV1(A2AAgent[ContractClockStudioV1Config, PlatformUserAu
         "contracts, saves user-scoped timelines, and reopens them in a packed "
         "one-page studio."
     )
-    version = "0.1.4"
+    version = "0.1.5"
 
     config_model = ContractClockStudioV1Config
     auth_model = PlatformUserAuth
@@ -277,8 +277,9 @@ def _analyze_text(*, contract_id: str, title: str, text: str) -> dict[str, Any]:
         return {"ok": False, "code": code, "contract_id": contract_id}
 
     deadlines: list[dict[str, str]] = []
-    if RENEWAL_RE.search(clean_text):
-        renewal_date = explicit_dates[0]
+    renewal_match = RENEWAL_DATE_RE.search(clean_text)
+    if renewal_match:
+        renewal_date = date.fromisoformat(renewal_match.group(1))
         deadlines.append({"kind": "renewal", "date": renewal_date.isoformat()})
         notice_match = NOTICE_RE.search(clean_text)
         if notice_match:
@@ -287,6 +288,12 @@ def _analyze_text(*, contract_id: str, title: str, text: str) -> dict[str, Any]:
                 deadlines.append(
                     {"kind": "notice", "date": (renewal_date - timedelta(days=notice_days)).isoformat()}
                 )
+    elif RENEWAL_RE.search(clean_text):
+        return {
+            "ok": False,
+            "code": "ambiguous_renewal_date",
+            "contract_id": contract_id,
+        }
     else:
         # Explicit dates outside a renewal clause are kept as dated obligations;
         # relative invoice terms without a concrete anchor are intentionally not guessed.