atlasbot: add spine intent routing

atlasbot/engine/answerer.py

@@ -16,6 +16,7 @@ from atlasbot.llm.client import LLMClient, build_messages, parse_json
 from atlasbot.llm import prompts
 from atlasbot.snapshot.builder import SnapshotProvider, build_summary, summary_text
 from atlasbot.state.store import ClaimStore
+from atlasbot.engine.intent_router import IntentMatch, route_intent
 
 log = logging.getLogger(__name__)
 
@@ -194,6 +195,7 @@ class AnswerEngine:
         allowed_nodes = _allowed_nodes(summary)
         allowed_namespaces = _allowed_namespaces(summary)
         summary_lines = _summary_lines(snapshot_used)
+        spine = _spine_lines(summary_lines)
         metric_tokens = _metric_key_tokens(summary_lines)
         global_facts = _global_facts(summary_lines)
         kb_summary = self._kb.summary()
@@ -247,11 +249,26 @@ class AnswerEngine:
             classify.setdefault("focus_metric", "unknown")
             if metric_tokens and keyword_tokens and any(token in metric_tokens for token in keyword_tokens):
                 classify["needs_snapshot"] = True
+            intent = route_intent(normalized)
+            if intent:
+                classify["needs_snapshot"] = True
+                classify["question_type"] = "metric"
             _debug_log("route_parsed", {"classify": classify, "normalized": normalized})
             lowered_question = f"{question} {normalized}".lower()
             force_metric = bool(re.search(r"\bhow many\b|\bcount\b|\btotal\b", lowered_question))
             if any(term in lowered_question for term in ("postgres", "connections", "pvc", "ready")):
                 force_metric = True
+
+            if intent:
+                spine_line = spine.get(intent.kind)
+                spine_answer = _spine_answer(intent, spine_line)
+                if spine_line:
+                    key_facts = _merge_fact_lines([spine_line], key_facts)
+                    metric_facts = _merge_fact_lines([spine_line], metric_facts)
+                if spine_answer and mode == "fast":
+                    scores = _default_scores()
+                    meta = _build_meta(mode, call_count, call_cap, limit_hit, classify, tool_hint, started)
+                    return AnswerResult(spine_answer, scores, meta)
             cluster_terms = (
                 "atlas",
                 "cluster",
@@ -745,6 +762,18 @@ class AnswerEngine:
             if facts_used and _needs_evidence_guard(reply, facts_used):
                 if observer:
                     observer("evidence_guard", "tightening unsupported claims")
+                use_guard = True
+                if mode in {"smart", "genius"}:
+                    decision = await _contradiction_decision(
+                        call_llm,
+                        normalized,
+                        reply,
+                        facts_used,
+                        plan,
+                        attempts=3 if mode == "genius" else 1,
+                    )
+                    use_guard = decision.get("use_facts", True)
+                if use_guard:
                     guard_prompt = (
                         prompts.EVIDENCE_GUARD_PROMPT
                         + "\nQuestion: "
@@ -1530,6 +1559,115 @@ def _summary_lines(snapshot: dict[str, Any] | None) -> list[str]:
     return [line for line in text.splitlines() if line.strip()]
 
 
+def _line_starting_with(lines: list[str], prefix: str) -> str | None:
+    if not lines:
+        return None
+    for line in lines:
+        if line.lower().startswith(prefix.lower()):
+            return line
+    return None
+
+
+def _spine_lines(lines: list[str]) -> dict[str, str]:
+    spine: dict[str, str] = {}
+    nodes_line = _line_starting_with(lines, "nodes:")
+    if nodes_line:
+        spine["nodes_count"] = nodes_line
+        spine["nodes_ready"] = nodes_line
+    hardware_line = _line_starting_with(lines, "hardware_nodes:")
+    if hardware_line:
+        spine["nodes_non_rpi"] = hardware_line
+    hottest_line = _line_starting_with(lines, "hottest:")
+    if hottest_line:
+        spine["hottest_cpu"] = hottest_line
+        spine["hottest_ram"] = hottest_line
+        spine["hottest_net"] = hottest_line
+        spine["hottest_io"] = hottest_line
+        spine["hottest_disk"] = hottest_line
+    postgres_total = _line_starting_with(lines, "postgres_connections_total:")
+    if postgres_total:
+        spine["postgres_connections"] = postgres_total
+    postgres_line = _line_starting_with(lines, "postgres:")
+    if postgres_line:
+        spine["postgres_hottest"] = postgres_line
+    namespaces_top = _line_starting_with(lines, "namespaces_top:")
+    if namespaces_top:
+        spine["namespace_most_pods"] = namespaces_top
+    pressure_line = _line_starting_with(lines, "pressure_nodes:")
+    if pressure_line:
+        spine["pressure_summary"] = pressure_line
+    else:
+        load_line = _line_starting_with(lines, "node_load_top:")
+        if load_line:
+            spine["pressure_summary"] = load_line
+    return spine
+
+
+def _parse_group_line(line: str) -> dict[str, list[str]]:
+    groups: dict[str, list[str]] = {}
+    if not line:
+        return groups
+    payload = line.split(":", 1)[1] if ":" in line else line
+    for part in payload.split(";"):
+        part = part.strip()
+        if not part or "=" not in part:
+            continue
+        key, value = part.split("=", 1)
+        nodes = [item.strip() for item in value.split(",") if item.strip()]
+        groups[key.strip()] = nodes
+    return groups
+
+
+def _parse_hottest(line: str, metric: str) -> str | None:
+    if not line:
+        return None
+    payload = line.split(":", 1)[1] if ":" in line else line
+    for part in payload.split(";"):
+        part = part.strip()
+        if part.startswith(f"{metric}="):
+            return part
+    return None
+
+
+def _spine_answer(intent: IntentMatch, spine_line: str | None) -> str | None:
+    if not spine_line:
+        return None
+    kind = intent.kind
+    if kind == "nodes_count":
+        return f"From the latest snapshot: {spine_line}."
+    if kind == "nodes_ready":
+        return f"From the latest snapshot: {spine_line}."
+    if kind == "nodes_non_rpi":
+        groups = _parse_group_line(spine_line)
+        non_rpi = []
+        for key, nodes in groups.items():
+            if key.lower().startswith("rpi"):
+                continue
+            non_rpi.extend(nodes)
+        if non_rpi:
+            return "Non‑Raspberry Pi nodes: " + ", ".join(non_rpi) + "."
+        return f"From the latest snapshot: {spine_line}."
+    if kind.startswith("hottest_"):
+        metric = kind.split("_", 1)[1]
+        hottest = _parse_hottest(spine_line, metric)
+        if hottest:
+            return f"From the latest snapshot: {hottest}."
+        return f"From the latest snapshot: {spine_line}."
+    if kind == "postgres_connections":
+        return f"From the latest snapshot: {spine_line}."
+    if kind == "postgres_hottest":
+        return f"From the latest snapshot: {spine_line}."
+    if kind == "namespace_most_pods":
+        payload = spine_line.split(":", 1)[1] if ":" in spine_line else spine_line
+        top = payload.split(";")[0].strip()
+        if top:
+            return f"Namespace with most pods: {top}."
+        return f"From the latest snapshot: {spine_line}."
+    if kind == "pressure_summary":
+        return f"From the latest snapshot: {spine_line}."
+    return f"From the latest snapshot: {spine_line}."
+
+
 async def _select_metric_chunks(
     call_llm: Callable[..., Awaitable[str]],
     ctx: dict[str, Any],
@@ -2108,6 +2246,39 @@ def _needs_evidence_guard(reply: str, facts: list[str]) -> bool:
     return False
 
 
+async def _contradiction_decision(
+    call_llm: Callable[..., Awaitable[str]],
+    question: str,
+    draft: str,
+    facts_used: list[str],
+    plan: "ModePlan",
+    attempts: int = 1,
+) -> dict[str, Any]:
+    best = {"use_facts": True, "confidence": 50}
+    facts_block = "\n".join(facts_used[:12])
+    for idx in range(max(1, attempts)):
+        variant = f"Variant: {idx + 1}" if attempts > 1 else ""
+        prompt = (
+            prompts.CONTRADICTION_PROMPT.format(question=question, draft=draft, facts=facts_block)
+            + ("\n" + variant if variant else "")
+        )
+        raw = await call_llm(
+            prompts.CONTRADICTION_SYSTEM,
+            prompt,
+            model=plan.fast_model,
+            tag="contradiction",
+        )
+        data = _parse_json_block(raw, fallback={})
+        try:
+            confidence = int(data.get("confidence", 50))
+        except Exception:
+            confidence = 50
+        use_facts = bool(data.get("use_facts", True))
+        if confidence >= best.get("confidence", 0):
+            best = {"use_facts": use_facts, "confidence": confidence}
+    return best
+
+
 def _filter_lines_by_keywords(lines: list[str], keywords: list[str], max_lines: int) -> list[str]:
     if not lines:
         return []

atlasbot/engine/intent_router.py

@@ -0,0 +1,65 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+import re
+
+
+@dataclass(frozen=True)
+class IntentMatch:
+    kind: str
+    score: int
+
+
+_COUNT_TERMS = r"(how many|count|number of|total|totals|tally|amount of|quantity|sum of|overall|in total|all up)"
+_NODE_TERMS = r"(nodes?|workers?|worker nodes?|cluster nodes?|machines?|hosts?|members?|instances?)"
+_READY_TERMS = r"(ready|unready|not ready|down|offline|not responding|missing)"
+_HOTTEST_TERMS = r"(hottest|hot|highest|max(?:imum)?|peak|top|most|worst|spikiest|heaviest|largest)"
+_CPU_TERMS = r"(cpu|processor|compute|core|cores|load|load avg|load average)"
+_RAM_TERMS = r"(ram|memory|mem|heap)"
+_NET_TERMS = r"(net|network|bandwidth|throughput|traffic|rx|tx|ingress|egress|bits|bytes)"
+_IO_TERMS = r"(io|i/o|disk io|disk activity|read/write|read write|storage io|iops)"
+_DISK_TERMS = r"(disk|storage|volume|pvc|filesystem|fs|capacity|space)"
+_PG_TERMS = r"(postgres|postgresql|pg\\b|database|db|sql)"
+_CONN_TERMS = r"(connections?|conn|pool|sessions?|clients?)"
+_DB_HOT_TERMS = r"(hottest|busiest|most|largest|top|heaviest)"
+_NAMESPACE_TERMS = r"(namespace|namespaces|ns\\b)"
+_PODS_TERMS = r"(pods?|workloads?|tasks?|containers?)"
+_NON_RPI_TERMS = r"(non[-\\s]?raspberry|not\\s+raspberry|non[-\\s]?rpi|not\\s+rpi|amd64|x86|x86_64|jetson)"
+_PRESSURE_TERMS = r"(pressure|overload|hotspot|bottleneck|saturation|headroom|strain|stress)"
+
+
+def route_intent(question: str) -> IntentMatch | None:
+    text = (question or "").lower()
+    if not text:
+        return None
+
+    if re.search(_COUNT_TERMS, text) and re.search(_NODE_TERMS, text):
+        return IntentMatch("nodes_count", 90)
+    if re.search(_READY_TERMS, text) and re.search(_NODE_TERMS, text):
+        return IntentMatch("nodes_ready", 85)
+    if re.search(_NON_RPI_TERMS, text) and re.search(_NODE_TERMS, text):
+        return IntentMatch("nodes_non_rpi", 80)
+
+    if re.search(_HOTTEST_TERMS, text) and re.search(_CPU_TERMS, text):
+        return IntentMatch("hottest_cpu", 80)
+    if re.search(_HOTTEST_TERMS, text) and re.search(_RAM_TERMS, text):
+        return IntentMatch("hottest_ram", 80)
+    if re.search(_HOTTEST_TERMS, text) and re.search(_NET_TERMS, text):
+        return IntentMatch("hottest_net", 80)
+    if re.search(_HOTTEST_TERMS, text) and re.search(_IO_TERMS, text):
+        return IntentMatch("hottest_io", 80)
+    if re.search(_HOTTEST_TERMS, text) and re.search(_DISK_TERMS, text):
+        return IntentMatch("hottest_disk", 80)
+
+    if re.search(_PG_TERMS, text) and re.search(_CONN_TERMS, text):
+        return IntentMatch("postgres_connections", 80)
+    if re.search(_PG_TERMS, text) and re.search(_DB_HOT_TERMS, text):
+        return IntentMatch("postgres_hottest", 75)
+
+    if re.search(_NAMESPACE_TERMS, text) and re.search(_PODS_TERMS, text):
+        return IntentMatch("namespace_most_pods", 75)
+
+    if re.search(_PRESSURE_TERMS, text) and re.search(_NODE_TERMS, text):
+        return IntentMatch("pressure_summary", 70)
+
+    return None

atlasbot/llm/prompts.py

@@ -231,6 +231,19 @@ DRAFT_SELECT_PROMPT = (
     "Return JSON with field: best (1-based index)."
 )
 
+CONTRADICTION_SYSTEM = (
+    CLUSTER_SYSTEM
+    + " Judge whether Draft or FactsUsed is more correct. "
+    + "Return JSON only."
+)
+
+CONTRADICTION_PROMPT = (
+    "Question: {question}\n"
+    "Draft: {draft}\n"
+    "FactsUsed:\n{facts}\n\n"
+    "Return JSON: {\"use_facts\": true|false, \"confidence\": 0-100, \"reason\": \"...\"}"
+)
+
 CANDIDATE_SELECT_SYSTEM = (
     CLUSTER_SYSTEM
     + " Pick the best candidate for accuracy and evidence use. "