fix: double volatile TTLs to survive missed scheduler runs

TTL = 2x refresh interval ensures data remains valid even if a
scheduled refresh is delayed or fails.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to Library Desk will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.7.2] - 2026-01-07
+
+### Fixed
+
+- **Volatile TTL doubled** - TTL now 2x refresh interval to survive missed/delayed scheduler runs
+
 ## [1.7.1] - 2026-01-07
 
 ### Fixed

check_environment.py

@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+"""Quick script to check environmental data in Qdrant volatile cache."""
+
+import asyncio
+import os
+import time
+from dotenv import load_dotenv
+
+load_dotenv()
+
+async def main():
+    from qdrant_client import QdrantClient
+    from qdrant_client.models import Filter, FieldCondition, MatchValue
+    from src.config import get_settings
+
+    settings = get_settings()
+    qdrant = QdrantClient(url=settings.qdrant_url)
+
+    user = "jpmschweitzer"
+    collection = f"volatile_{user}"
+
+    print(f"\n{'='*60}")
+    print(f"Volatile Data in Qdrant ({collection})")
+    print(f"{'='*60}\n")
+
+    namespaces = ["weather", "air_quality", "forecast", "sun", "news"]
+
+    for ns in namespaces:
+        try:
+            results = qdrant.scroll(
+                collection_name=collection,
+                scroll_filter=Filter(
+                    must=[FieldCondition(key="namespace", match=MatchValue(value=ns))]
+                ),
+                limit=10,
+                with_payload=True,
+                with_vectors=False,
+            )
+
+            points = results[0]
+            print(f"=== {ns.upper()} ({len(points)} records) ===")
+
+            if not points:
+                print("  (no data)")
+                print()
+                continue
+
+            for point in points:
+                payload = point.payload
+                raw_data = payload.get("raw_data", {})
+
+                if ns == "weather":
+                    print(f"  Temperature: {raw_data.get('temperature')}°C (feels like {raw_data.get('feels_like')}°C)")
+                    print(f"  Conditions: {raw_data.get('conditions')}")
+                    print(f"  Humidity: {raw_data.get('humidity')}%")
+                    print(f"  Wind: {raw_data.get('wind_speed')} km/h")
+                    print(f"  UV Index: {raw_data.get('uv_index')}")
+
+                elif ns == "air_quality":
+                    print(f"  European AQI: {raw_data.get('aqi_european')}")
+                    print(f"  US AQI: {raw_data.get('aqi_us')}")
+                    print(f"  PM2.5: {raw_data.get('pm2_5')} µg/m³")
+                    print(f"  PM10: {raw_data.get('pm10')} µg/m³")
+                    print(f"  Ozone: {raw_data.get('ozone')} µg/m³")
+                    print(f"  NO₂: {raw_data.get('nitrogen_dioxide')} µg/m³")
+
+                elif ns == "forecast":
+                    daily = raw_data.get("daily", [])
+                    for day in daily[:5]:
+                        print(f"  {day.get('day_name', 'N/A')[:3]}: {day.get('temp_low'):.0f}-{day.get('temp_high'):.0f}°C, {day.get('conditions')}")
+
+                elif ns == "sun":
+                    print(f"  Sunrise: {raw_data.get('sunrise')}")
+                    print(f"  Sunset: {raw_data.get('sunset')}")
+                    print(f"  Daylight: {raw_data.get('daylight_hours', 0):.1f} hours")
+
+                elif ns == "news":
+                    headlines = raw_data.get("headlines", [])
+                    print(f"  Category: {raw_data.get('category', 'general')}")
+                    print(f"  Headlines ({len(headlines)}):")
+                    for item in headlines[:5]:
+                        title = item.get("title", "")[:60]
+                        source = item.get("source", "")
+                        print(f"    - [{source}] {title}...")
+
+                # Show TTL info
+                ttl_expiry = payload.get("ttl_expiry")
+                if ttl_expiry:
+                    remaining = (ttl_expiry / 1000) - time.time()
+                    if remaining > 0:
+                        print(f"  TTL remaining: {int(remaining)}s ({int(remaining/60)} min)")
+                    else:
+                        print(f"  TTL: EXPIRED")
+
+            print()
+
+        except Exception as e:
+            print(f"  Error fetching {ns}: {e}")
+            print()
+
+if __name__ == "__main__":
+    asyncio.run(main())

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "library-desk"
-version = "1.7.1"
+version = "1.7.2"
 description = "Coordination service for The Library system - HybridRAG queries, document ingestion, entity extraction, and knowledge consolidation"
 readme = "README.md"
 requires-python = ">=3.12"

src/models/volatile.py

@@ -38,20 +38,21 @@ class VolatileNamespace(str, Enum):
 
 
 # Default TTLs per namespace (in seconds)
+# TTL = 2x refresh interval to ensure data survives missed/delayed refreshes
 NAMESPACE_DEFAULT_TTL: Dict[str, int] = {
-    VolatileNamespace.WEATHER: 3600,       # 1 hour - current conditions
-    VolatileNamespace.FORECAST: 43200,     # 12 hours - forecast stable longer
-    VolatileNamespace.SUN: 86400,          # 24 hours - sun times change daily
-    VolatileNamespace.NEWS: 3600,          # 1 hour - news cycles
-    VolatileNamespace.FINANCIAL: 300,      # 5 min - markets move fast
-    VolatileNamespace.TRANSIT: 300,        # 5 min - schedules update frequently
-    VolatileNamespace.TRAFFIC: 600,        # 10 min - traffic patterns
-    VolatileNamespace.AIR_QUALITY: 3600,   # 1 hour - air quality stable
-    VolatileNamespace.SPORTS: 60,          # 1 min - live scores
-    VolatileNamespace.SOCIAL: 600,         # 10 min - social notifications
-    VolatileNamespace.SYSTEM: 60,          # 1 min - system health
-    VolatileNamespace.CONTEXT: 3600,       # 1 hour - session context
-    VolatileNamespace.CUSTOM: 3600,        # 1 hour - default for custom
+    VolatileNamespace.WEATHER: 7200,       # 2 hours (hourly refresh)
+    VolatileNamespace.FORECAST: 86400,     # 24 hours (12hr refresh)
+    VolatileNamespace.SUN: 172800,         # 48 hours (daily refresh)
+    VolatileNamespace.NEWS: 7200,          # 2 hours (hourly refresh)
+    VolatileNamespace.FINANCIAL: 600,      # 10 min (5 min refresh)
+    VolatileNamespace.TRANSIT: 600,        # 10 min (5 min refresh)
+    VolatileNamespace.TRAFFIC: 1200,       # 20 min (10 min refresh)
+    VolatileNamespace.AIR_QUALITY: 7200,   # 2 hours (hourly refresh)
+    VolatileNamespace.SPORTS: 120,         # 2 min (1 min refresh)
+    VolatileNamespace.SOCIAL: 1200,        # 20 min (10 min refresh)
+    VolatileNamespace.SYSTEM: 120,         # 2 min (1 min refresh)
+    VolatileNamespace.CONTEXT: 7200,       # 2 hours - session context
+    VolatileNamespace.CUSTOM: 7200,        # 2 hours - default for custom
 }