fix: reliably dispatch and return background tasks

agent/task_router.py

@@ -0,0 +1,58 @@
+"""Deterministic routing hints for background voice tasks."""
+from __future__ import annotations
+
+import re
+
+# Gemma is a small model and will sometimes promise to do work without actually
+# calling dispatch_task. Force that tool for high-confidence background intents;
+# the main prompt remains responsible for less obvious cases.
+_BACKGROUND_TASK_RE = re.compile(
+    r"\b(?:"
+    r"latest|news|current events?|headlines?|prices?|scores?|"
+    r"research|look\s+up|search(?:\s+for)?|find\s+out|investigate|"
+    r"compare|comparison|pros\s+and\s+cons|"
+    r"plan|itinerary|schedule|"
+    r"write|draft|compose|rewrite|"
+    r"summari[sz]e|summary|analy[sz]e|analysis|review|report|"
+    r"recommend|recommendation|options?|developments?"
+    r")\b",
+    re.IGNORECASE,
+)
+_MEMORY_INTENT_RE = re.compile(
+    r"\b(?:remember|memory|memories|forget|write down|my name|"
+    r"what do you know about me|preference|preferences)\b",
+    re.IGNORECASE,
+)
+_DIRECT_WEATHER_TIME_RE = re.compile(
+    r"\b(?:weather|temperature|forecast|what time|current time|what day|today's date)\b",
+    re.IGNORECASE,
+)
+
+
+def should_force_background_task(text: str) -> bool:
+    """Return whether a fresh user turn should be forced through dispatch_task.
+
+    This deliberately favors precise intent signals over trying to classify every
+    possible request. Memory stays on its authenticated MCP and straightforward
+    weather/time requests stay on their purpose-built tools.
+    """
+    normalized = " ".join((text or "").split())
+    if not normalized or _MEMORY_INTENT_RE.search(normalized):
+        return False
+    if re.search(r"\b(?:my|saved)\s+notes?\b", normalized, re.IGNORECASE):
+        return False
+
+    match = _BACKGROUND_TASK_RE.search(normalized)
+    if not match:
+        return bool(re.search(r"\b(?:tell me about|give me an overview of)\b", normalized, re.I))
+
+    # Straightforward weather/time requests stay on the fast dedicated MCP.
+    # Comparisons, research, plans, and written reports still go background.
+    if _DIRECT_WEATHER_TIME_RE.search(normalized) and not re.search(
+        r"\b(?:compare|comparison|research|investigate|plan|write|draft|"
+        r"summari[sz]e|analy[sz]e|review|report)\b",
+        normalized,
+        re.IGNORECASE,
+    ):
+        return False
+    return True