diff --git a/web/agent/src/agent.py b/web/agent/src/agent.py
index 1f438b2..504c226 100644
--- a/web/agent/src/agent.py
+++ b/web/agent/src/agent.py
@@ -64,13 +64,13 @@ def check_mcp_available(url: str, timeout: float = 5.0) -> bool:
 AGENT_INSTRUCTIONS = """Caving assistant. Help with exploration, safety, surveying, locations, geology, equipment, history, conservation.
 
 Rules:
-1. Cite sources when possible.
+1. ALWAYS cite sources at the end of every reply. Use the 'key' from search results (e.g., "Source: vpi/trog/2021-trog.pdf/page-19.pdf").
 2. Say when uncertain. Never hallucinate.
 3. Be safety-conscious.
 4. Can create ascii diagrams/maps.
 5. Be direct—no sycophantic phrases.
 6. Keep responses concise.
-7. Use tools sparingly—one search usually suffices. Answer from your knowledge when possible."""
+7. Use tools sparingly—one search usually suffices."""
 
 
 def create_agent(user_roles: list[str] | None = None):