atlasbot: expand hottest node facts

atlasbot/engine/answerer.py

@@ -981,6 +981,28 @@ def _merge_fact_lines(primary: list[str], fallback: list[str]) -> list[str]:
     return merged
 
 
+def _expand_hottest_line(line: str) -> list[str]:
+    if not line:
+        return []
+    if not line.lower().startswith("hottest:"):
+        return []
+    expanded: list[str] = []
+    payload = line.split("hottest:", 1)[1]
+    for part in payload.split(";"):
+        part = part.strip()
+        if not part or "=" not in part:
+            continue
+        metric, rest = part.split("=", 1)
+        metric = metric.strip()
+        match = re.search(r"(?P<node>[^\\s\\[]+).*\\((?P<value>[^)]+)\\)", rest)
+        if not match:
+            continue
+        node = match.group("node").strip()
+        value = match.group("value").strip()
+        expanded.append(f"hottest_{metric}_node: {node} ({value})")
+    return expanded
+
+
 def _metric_candidate_lines(lines: list[str], keywords: list[str] | None, limit: int = 40) -> list[str]:
     if not lines:
         return []
@@ -1003,6 +1025,10 @@ def _metric_candidate_lines(lines: list[str], keywords: list[str] | None, limit:
         "pressure",
     }
     candidates: list[str] = []
+    for line in lines:
+        if line.lower().startswith("hottest:"):
+            candidates.extend(_expand_hottest_line(line))
+            break
     for line in lines:
         line_lower = line.lower()
         if line_lower.startswith("lexicon_") or line_lower.startswith("units:"):

atlasbot/llm/prompts.py

@@ -216,6 +216,7 @@ FACT_SELECT_SYSTEM = (
 FACT_SELECT_PROMPT = (
     "Pick up to {max_lines} lines from Candidates that best answer the question. "
     "If the question asks for highest/hottest and Candidates include a line starting with 'hottest:', you must include that line. "
+    "If Candidates include hottest_*_node lines, prefer those for node hottest questions. "
     "If the question mentions nodes and a 'hottest:' line exists, prefer node-level facts over pod-level lines. "
     "Avoid pod_* lines unless the question explicitly mentions pods. "
     "Exclude lexicon/definition lines; choose lines with concrete numeric values. "