feat(mcp): add Intune device management tools

MCP tools for list_devices, get_device_compliance, sync_device,
remote_lock. All route through governed IntuneConnector
invocation with Chronicle audit.

Signed-off-by: Tyler King <tking@guildhouse.dev>

gsap_broker/mcp.py

@@ -158,6 +158,49 @@ TOOLS = [
         "description": "Get current session details: principal, AC scope, delegation, DEFCON level.",
         "inputSchema": {"type": "object", "properties": {}},
     },
+    {
+        "name": "list_devices",
+        "description": "List managed devices from Intune. Requires Intune connector enabled.",
+        "inputSchema": {
+            "type": "object",
+            "properties": {
+                "top": {"type": "integer", "description": "Max devices to return (default: 50)"},
+            },
+        },
+    },
+    {
+        "name": "get_device_compliance",
+        "description": "Check compliance state of a specific device via Intune.",
+        "inputSchema": {
+            "type": "object",
+            "properties": {
+                "device_id": {"type": "string", "description": "Intune managed device ID"},
+            },
+            "required": ["device_id"],
+        },
+    },
+    {
+        "name": "sync_device",
+        "description": "Trigger Intune sync for a device. Requires PROPOSE capability.",
+        "inputSchema": {
+            "type": "object",
+            "properties": {
+                "device_id": {"type": "string", "description": "Intune managed device ID"},
+            },
+            "required": ["device_id"],
+        },
+    },
+    {
+        "name": "remote_lock",
+        "description": "Remote lock a managed device. Requires MUTATE capability. May require ceremony approval in production Accords.",
+        "inputSchema": {
+            "type": "object",
+            "properties": {
+                "device_id": {"type": "string", "description": "Intune managed device ID"},
+            },
+            "required": ["device_id"],
+        },
+    },
 ]
 
 
@@ -411,6 +454,32 @@ async def _handle_session_info(request: Request) -> dict:
     }
 
 
+async def _handle_intune_tool(tool_name: str, args: dict) -> dict:
+    """Route Intune MCP tools through the governed IntuneConnector."""
+    from gsap_broker.routers.connectors import _registry
+    from gsap_broker.connectors.base import ConnectorContext
+
+    intune = _registry.get("intune")
+    if intune is None:
+        return {"error": "Intune connector not enabled. Set intune_enabled=True."}
+
+    op_map = {
+        "list_devices": "list_devices",
+        "get_device_compliance": "get_compliance",
+        "sync_device": "sync_device",
+        "remote_lock": "remote_lock",
+    }
+    operation = op_map.get(tool_name)
+    if not operation:
+        return {"error": f"Unknown Intune tool: {tool_name}"}
+
+    ctx = ConnectorContext(gsap_context_id=args.get("ac_id", "mcp-session"))
+    result = await intune.invoke(operation, args, ctx)
+    if result.success:
+        return {"data": result.data, "lineage_cid": result.lineage_cid}
+    return {"error": result.error}
+
+
 # ── Tool Dispatch ────────────────────────────────────────────────
 
 
@@ -427,6 +496,10 @@ async def _dispatch_tool(request: Request, tool_name: str, arguments: dict) -> d
         "get_posture": lambda: _handle_get_posture(arguments),
         "check_operation": lambda: _handle_check_operation(arguments, request),
         "session_info": lambda: _handle_session_info(request),
+        "list_devices": lambda: _handle_intune_tool(tool_name, arguments),
+        "get_device_compliance": lambda: _handle_intune_tool(tool_name, arguments),
+        "sync_device": lambda: _handle_intune_tool(tool_name, arguments),
+        "remote_lock": lambda: _handle_intune_tool(tool_name, arguments),
     }
 
     handler = handlers.get(tool_name)

tests/test_mcp_intune.py

@@ -0,0 +1,48 @@
+# Copyright 2026 Guildhouse Dev
+# SPDX-License-Identifier: Apache-2.0
+
+"""Tests for Intune MCP tools."""
+
+import pytest
+from httpx import AsyncClient, ASGITransport
+from gsap_broker.app import app
+
+
+@pytest.fixture
+async def client():
+    async with AsyncClient(transport=ASGITransport(app=app), base_url="http://test") as c:
+        yield c
+
+
+@pytest.mark.asyncio
+async def test_mcp_tools_list_includes_intune(client):
+    """MCP tools/list should include Intune tools."""
+    resp = await client.post("/mcp", json={
+        "jsonrpc": "2.0",
+        "method": "tools/list",
+        "id": 1,
+    })
+    assert resp.status_code == 200
+    tools = resp.json()["result"]["tools"]
+    tool_names = [t["name"] for t in tools]
+    assert "list_devices" in tool_names
+    assert "get_device_compliance" in tool_names
+    assert "sync_device" in tool_names
+    assert "remote_lock" in tool_names
+
+
+@pytest.mark.asyncio
+async def test_mcp_intune_tool_without_connector(client):
+    """Intune MCP tool should return error when connector not enabled."""
+    resp = await client.post("/mcp", json={
+        "jsonrpc": "2.0",
+        "method": "tools/call",
+        "params": {
+            "name": "list_devices",
+            "arguments": {},
+        },
+        "id": 2,
+    })
+    assert resp.status_code == 200
+    content = resp.json()["result"]["content"][0]["text"]
+    assert "not enabled" in content.lower() or "error" in content.lower()