Revert "Remove council_query tool to force stage-by-stage usage"

This reverts commit 93a70bb195.

mcp_server/server.py

@@ -59,7 +59,55 @@ async def api_request(
 
 
 # ============================================================================
-# INDIVIDUAL STAGE TOOLS (council_query removed to force stage-by-stage usage)
+# HIGH-LEVEL COUNCIL TOOL
+# ============================================================================
+
+@mcp.tool()
+async def council_query(
+    query: str,
+    conversation_id: str | None = None
+) -> dict[str, Any]:
+    """
+    Run the complete LLM Council 3-stage deliberation process.
+
+    Stage 1: Query all council models in parallel for individual responses.
+    Stage 2: Each model anonymously ranks the other responses.
+    Stage 3: Chairman model synthesizes a final answer based on all inputs.
+
+    This process typically takes 1-3 minutes depending on model response times.
+
+    Args:
+        query: The user's question to deliberate on
+        conversation_id: Optional existing conversation ID for multi-turn context
+
+    Returns:
+        Complete council response with all 3 stages and metadata including:
+        - conversation_id: The conversation ID used
+        - stage1: Individual model responses
+        - stage2: Peer rankings with aggregate scores
+        - stage3: Chairman's synthesized final answer
+        - metadata: Label mappings and aggregate rankings
+    """
+    # Create conversation if not provided
+    if not conversation_id:
+        conv = await api_request("POST", "/api/conversations", {})
+        conversation_id = conv["id"]
+
+    # Send message and get full council response
+    result = await api_request(
+        "POST",
+        f"/api/conversations/{conversation_id}/message",
+        {"content": query}
+    )
+
+    return {
+        "conversation_id": conversation_id,
+        **result
+    }
+
+
+# ============================================================================
+# INDIVIDUAL STAGE TOOLS
 # ============================================================================
 
 @mcp.tool()