diff --git a/atlasbot/llm/prompts.py b/atlasbot/llm/prompts.py
index 654f2e5..d12b41f 100644
--- a/atlasbot/llm/prompts.py
+++ b/atlasbot/llm/prompts.py
@@ -1,6 +1,8 @@
 CLUSTER_SYSTEM = (
     "You are Atlas, the Titan Lab assistant for the Atlas/Othrys cluster. "
     "Use the provided context as your source of truth. "
+    "If a fact or number is not present in the context, say you do not know. "
+    "Do not invent metrics or capacities. "
     "If the question is about Atlas/Othrys, respond in short paragraphs. "
     "Avoid commands unless explicitly asked. "
     "If information is missing, say so clearly and avoid guessing. "
diff --git a/atlasbot/snapshot/builder.py b/atlasbot/snapshot/builder.py
index a103630..86c5baa 100644
--- a/atlasbot/snapshot/builder.py
+++ b/atlasbot/snapshot/builder.py
@@ -1,4 +1,3 @@
-import json
 import logging
 import time
 from typing import Any
@@ -157,8 +156,93 @@ def _build_flux(snapshot: dict[str, Any]) -> dict[str, Any]:
     return {"flux": flux}
 
 
+def _format_float(value: Any) -> str:
+    try:
+        numeric = float(value)
+    except (TypeError, ValueError):
+        return str(value)
+    return f"{numeric:.2f}".rstrip("0").rstrip(".")
+
+
+def _format_names(names: list[str]) -> str:
+    if not names:
+        return ""
+    return ", ".join(sorted(names))
+
+
 def summary_text(snapshot: dict[str, Any] | None) -> str:
     summary = build_summary(snapshot)
     if not summary:
         return ""
-    return json.dumps(summary, ensure_ascii=True, separators=(",", ":"))
+    lines: list[str] = []
+
+    nodes = summary.get("nodes") if isinstance(summary.get("nodes"), dict) else {}
+    if nodes:
+        lines.append(
+            "nodes: total={total}, ready={ready}, not_ready={not_ready}".format(
+                total=nodes.get("total"),
+                ready=nodes.get("ready"),
+                not_ready=nodes.get("not_ready"),
+            )
+        )
+
+    hardware = summary.get("hardware") if isinstance(summary.get("hardware"), dict) else {}
+    if hardware:
+        parts = []
+        for key, names in hardware.items():
+            if not isinstance(names, list):
+                continue
+            label = f"{key}={len(names)}"
+            name_list = _format_names([str(name) for name in names if name])
+            if name_list:
+                label = f"{label} ({name_list})"
+            parts.append(label)
+        if parts:
+            lines.append("hardware: " + "; ".join(sorted(parts)))
+
+    pods = summary.get("pods") if isinstance(summary.get("pods"), dict) else {}
+    if pods:
+        lines.append(
+            "pods: running={running}, pending={pending}, failed={failed}, succeeded={succeeded}".format(
+                running=pods.get("running"),
+                pending=pods.get("pending"),
+                failed=pods.get("failed"),
+                succeeded=pods.get("succeeded"),
+            )
+        )
+
+    postgres = summary.get("postgres") if isinstance(summary.get("postgres"), dict) else {}
+    if postgres:
+        hottest = postgres.get("hottest_db") or ""
+        lines.append(
+            "postgres: used={used}, max={max}, hottest_db={hottest}".format(
+                used=postgres.get("used"),
+                max=postgres.get("max"),
+                hottest=hottest,
+            )
+        )
+
+    hottest = summary.get("hottest") if isinstance(summary.get("hottest"), dict) else {}
+    if hottest:
+        parts = []
+        for key, entry in hottest.items():
+            if not isinstance(entry, dict):
+                continue
+            node = entry.get("node")
+            value = _format_float(entry.get("value"))
+            if node:
+                parts.append(f"{key}={node} ({value})")
+        if parts:
+            lines.append("hottest: " + "; ".join(parts))
+
+    workloads = summary.get("workloads")
+    if isinstance(workloads, list) and workloads:
+        lines.append(f"workloads: total={len(workloads)}")
+
+    flux = summary.get("flux") if isinstance(summary.get("flux"), dict) else {}
+    if flux:
+        not_ready = flux.get("not_ready")
+        if not_ready is not None:
+            lines.append(f"flux_not_ready: {not_ready}")
+
+    return "\n".join(lines)