diff --git a/gsap_broker/connectors/intune.py b/gsap_broker/connectors/intune.py
new file mode 100644
index 0000000..c771e5c
--- /dev/null
+++ b/gsap_broker/connectors/intune.py
@@ -0,0 +1,177 @@
+# Copyright 2026 Guildhouse Dev
+# SPDX-License-Identifier: Apache-2.0
+
+"""Intune device management connector — governed Graph API invocation.
+
+Implements ConnectorPlugin for Intune Graph API operations.
+Every invocation requires an active AC and emits a Chronicle
+CONNECTOR_INVOKED event via the ConnectorRuntime.
+"""
+
+from __future__ import annotations
+
+import logging
+from datetime import datetime, UTC
+from typing import Any
+
+from gsap_broker.connectors.base import ConnectorContext, ConnectorPlugin, ConnectorResult
+from gsap_broker.intune.device_cache import DeviceComplianceCache
+from gsap_broker.intune.graph_client import GraphClient
+from gsap_broker.models.intune import ComplianceState, DeviceSummary
+
+logger = logging.getLogger(__name__)
+
+_GRAPH_DEVICES = "/deviceManagement/managedDevices"
+
+
+class IntuneConnector(ConnectorPlugin):
+    connector_id = "intune"
+    corpus_entry_cid = "sha256:intune-connector-v1"
+    capability_mask = 0x7  # READ | PROPOSE | MUTATE
+    declared_endpoints = [
+        "graph.microsoft.com/v1.0/deviceManagement/managedDevices",
+    ]
+    accord_template = "device-management"
+    gsap_required = True
+    chronicle_enabled = True
+
+    def __init__(self, graph_client: GraphClient, cache: DeviceComplianceCache | None = None):
+        self.graph = graph_client
+        self.cache = cache or DeviceComplianceCache()
+
+    async def invoke(
+        self, operation: str, parameters: dict[str, Any], context: ConnectorContext
+    ) -> ConnectorResult:
+        """Route to the appropriate Graph API call."""
+        handlers = {
+            "list_devices": self._list_devices,
+            "get_device": self._get_device,
+            "get_compliance": self._get_compliance,
+            "sync_device": self._sync_device,
+            "remote_lock": self._remote_lock,
+            "retire_device": self._retire_device,
+            "wipe_device": self._wipe_device,
+        }
+        handler = handlers.get(operation)
+        if handler is None:
+            return ConnectorResult(
+                success=False, error=f"Unknown operation: {operation}"
+            )
+        try:
+            return await handler(parameters, context)
+        except Exception as e:
+            logger.error("Intune connector error: %s %s", operation, e)
+            return ConnectorResult(success=False, error=str(e))
+
+    def health_check(self) -> bool:
+        # Synchronous check — can't call async Graph API here.
+        # Return True if graph client is configured.
+        return bool(self.graph.tenant_id and self.graph.client_id)
+
+    # ── READ operations ──────────────────────────────────────────
+
+    async def _list_devices(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        top = params.get("top", 50)
+        select = params.get("select", "id,deviceName,operatingSystem,osVersion,complianceState,lastSyncDateTime,userPrincipalName,azureADDeviceId")
+        data = await self.graph.get(_GRAPH_DEVICES, params={"$top": top, "$select": select})
+        devices = [
+            DeviceSummary(
+                device_id=d["id"],
+                device_name=d.get("deviceName", ""),
+                os_type=d.get("operatingSystem", ""),
+                os_version=d.get("osVersion", ""),
+                compliance_state=d.get("complianceState", "unknown"),
+                last_sync=d.get("lastSyncDateTime"),
+                user_principal_name=d.get("userPrincipalName"),
+                entra_device_id=d.get("azureADDeviceId"),
+            ).model_dump(mode="json")
+            for d in data.get("value", [])
+        ]
+        return ConnectorResult(success=True, data=devices)
+
+    async def _get_device(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        device_id = params.get("device_id", "")
+        if not device_id:
+            return ConnectorResult(success=False, error="device_id required")
+        data = await self.graph.get(f"{_GRAPH_DEVICES}/{device_id}")
+        return ConnectorResult(success=True, data=data)
+
+    async def _get_compliance(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        device_id = params.get("device_id", "")
+        if not device_id:
+            return ConnectorResult(success=False, error="device_id required")
+
+        # Check cache first
+        cached = await self.cache.get(device_id)
+        if cached is not None:
+            return ConnectorResult(success=True, data=cached.model_dump(mode="json"))
+
+        # Fetch from Graph API
+        data = await self.graph.get(
+            f"{_GRAPH_DEVICES}/{device_id}",
+            params={"$select": "id,complianceState,lastSyncDateTime,complianceGracePeriodExpirationDateTime"},
+        )
+        raw_state = data.get("complianceState", "unknown")
+        state = ComplianceState(
+            device_id=device_id,
+            compliant=raw_state == "compliant",
+            state=raw_state,
+            last_evaluated=datetime.now(UTC),
+        )
+        await self.cache.set(device_id, state)
+        return ConnectorResult(success=True, data=state.model_dump(mode="json"))
+
+    # ── PROPOSE operations ───────────────────────────────────────
+
+    async def _sync_device(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        device_id = params.get("device_id", "")
+        if not device_id:
+            return ConnectorResult(success=False, error="device_id required")
+        resp = await self.graph.post(f"{_GRAPH_DEVICES}/{device_id}/syncDevice")
+        if resp.status_code in (200, 204):
+            await self.cache.invalidate(device_id)
+            return ConnectorResult(success=True, data={"synced": True})
+        return ConnectorResult(success=False, error=f"Sync failed: HTTP {resp.status_code}")
+
+    # ── MUTATE operations ────────────────────────────────────────
+
+    async def _remote_lock(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        device_id = params.get("device_id", "")
+        if not device_id:
+            return ConnectorResult(success=False, error="device_id required")
+        resp = await self.graph.post(f"{_GRAPH_DEVICES}/{device_id}/remoteLock")
+        if resp.status_code in (200, 204):
+            return ConnectorResult(success=True, data={"locked": True})
+        return ConnectorResult(success=False, error=f"Lock failed: HTTP {resp.status_code}")
+
+    async def _retire_device(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        device_id = params.get("device_id", "")
+        if not device_id:
+            return ConnectorResult(success=False, error="device_id required")
+        resp = await self.graph.post(f"{_GRAPH_DEVICES}/{device_id}/retire")
+        if resp.status_code in (200, 204):
+            return ConnectorResult(success=True, data={"retired": True})
+        return ConnectorResult(success=False, error=f"Retire failed: HTTP {resp.status_code}")
+
+    async def _wipe_device(
+        self, params: dict[str, Any], ctx: ConnectorContext
+    ) -> ConnectorResult:
+        device_id = params.get("device_id", "")
+        if not device_id:
+            return ConnectorResult(success=False, error="device_id required")
+        resp = await self.graph.post(f"{_GRAPH_DEVICES}/{device_id}/wipe")
+        if resp.status_code in (200, 204):
+            return ConnectorResult(success=True, data={"wiped": True})
+        return ConnectorResult(success=False, error=f"Wipe failed: HTTP {resp.status_code}")
diff --git a/gsap_broker/intune/device_cache.py b/gsap_broker/intune/device_cache.py
new file mode 100644
index 0000000..f62556f
--- /dev/null
+++ b/gsap_broker/intune/device_cache.py
@@ -0,0 +1,39 @@
+# Copyright 2026 Guildhouse Dev
+# SPDX-License-Identifier: Apache-2.0
+
+"""In-memory cache of Intune device compliance state."""
+
+import time
+from typing import Optional
+
+from gsap_broker.models.intune import ComplianceState
+
+
+class DeviceComplianceCache:
+    """In-memory cache with TTL for device compliance state."""
+
+    def __init__(self, ttl_seconds: int = 300):
+        self.ttl = ttl_seconds
+        self._store: dict[str, tuple[ComplianceState, float]] = {}
+
+    async def get(self, device_id: str) -> Optional[ComplianceState]:
+        """Get cached compliance state, or None if expired/missing."""
+        entry = self._store.get(device_id)
+        if entry is None:
+            return None
+        state, stored_at = entry
+        if (time.time() - stored_at) > self.ttl:
+            del self._store[device_id]
+            return None
+        return state
+
+    async def set(self, device_id: str, state: ComplianceState) -> None:
+        """Cache a compliance state."""
+        self._store[device_id] = (state, time.time())
+
+    async def invalidate(self, device_id: str) -> None:
+        """Remove a device from cache."""
+        self._store.pop(device_id, None)
+
+    def size(self) -> int:
+        return len(self._store)
diff --git a/gsap_broker/models/intune.py b/gsap_broker/models/intune.py
new file mode 100644
index 0000000..246cda2
--- /dev/null
+++ b/gsap_broker/models/intune.py
@@ -0,0 +1,28 @@
+# Copyright 2026 Guildhouse Dev
+# SPDX-License-Identifier: Apache-2.0
+
+"""Pydantic models for Intune device management."""
+
+from datetime import datetime
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+class DeviceSummary(BaseModel):
+    device_id: str
+    device_name: str = ""
+    os_type: str = ""  # windows, linux, macOS, android, iOS
+    os_version: str = ""
+    compliance_state: str = ""  # compliant, noncompliant, unknown, configManager, ...
+    last_sync: Optional[datetime] = None
+    user_principal_name: Optional[str] = None
+    entra_device_id: Optional[str] = None
+
+
+class ComplianceState(BaseModel):
+    device_id: str
+    compliant: bool
+    state: str = ""  # compliant, noncompliant, configManager, ...
+    detail: Optional[str] = None
+    last_evaluated: datetime
diff --git a/gsap_broker/routers/connectors.py b/gsap_broker/routers/connectors.py
index e8fa509..24d63b2 100644
--- a/gsap_broker/routers/connectors.py
+++ b/gsap_broker/routers/connectors.py
@@ -10,6 +10,7 @@ from gsap_broker.connectors.base import ConnectorContext
 from gsap_broker.connectors.registry import ConnectorRegistry
 from gsap_broker.connectors.runtime import ConnectorRuntime
 from gsap_broker.connectors.examples.echo_connector import EchoConnector
+from gsap_broker.settings import settings
 
 router = APIRouter()
 
@@ -20,6 +21,21 @@ _runtime = ConnectorRuntime(registry=_registry)
 # Register built-in connectors
 _registry.register(EchoConnector())
 
+# Conditionally register Intune connector
+if settings.intune_enabled and settings.entra_client_secret:
+    from gsap_broker.intune.graph_client import GraphClient
+    from gsap_broker.intune.device_cache import DeviceComplianceCache
+    from gsap_broker.connectors.intune import IntuneConnector
+
+    _intune_graph = GraphClient(
+        tenant_id=settings.entra_tenant_id,
+        client_id=settings.entra_client_id,
+        client_secret=settings.entra_client_secret,
+    )
+    _intune_cache = DeviceComplianceCache(ttl_seconds=settings.intune_compliance_cache_ttl)
+    _intune_connector = IntuneConnector(graph_client=_intune_graph, cache=_intune_cache)
+    _registry.register(_intune_connector)
+
 
 class InvokeRequest(BaseModel):
     operation: str
diff --git a/gsap_broker/settings.py b/gsap_broker/settings.py
index f42aa5c..ba68f95 100644
--- a/gsap_broker/settings.py
+++ b/gsap_broker/settings.py
@@ -35,6 +35,12 @@ class Settings(BaseSettings):
     entra_client_secret: str = ""
     entra_agent_blueprint_id: str = ""
 
+    # ── Intune / Device Management ──
+    intune_enabled: bool = False
+    intune_compliance_required: bool = False  # global default for accord templates
+    intune_compliance_strict: bool = False  # reject if no device_id present
+    intune_compliance_cache_ttl: int = 300  # seconds
+
     # Delegation defaults
     default_delegation_ttl_minutes: int = 60
     default_max_commands: int = 500
diff --git a/tests/test_intune.py b/tests/test_intune.py
new file mode 100644
index 0000000..46d81f1
--- /dev/null
+++ b/tests/test_intune.py
@@ -0,0 +1,224 @@
+# Copyright 2026 Guildhouse Dev
+# SPDX-License-Identifier: Apache-2.0
+
+"""Tests for Intune connector and device compliance cache."""
+
+import time
+import pytest
+from datetime import datetime, UTC
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import httpx
+
+from gsap_broker.connectors.base import ConnectorContext
+from gsap_broker.connectors.intune import IntuneConnector
+from gsap_broker.intune.device_cache import DeviceComplianceCache
+from gsap_broker.intune.graph_client import GraphClient
+from gsap_broker.models.intune import ComplianceState
+
+
+@pytest.fixture
+def mock_graph():
+    graph = MagicMock(spec=GraphClient)
+    graph.tenant_id = "test-tenant"
+    graph.client_id = "test-client"
+    graph.get = AsyncMock()
+    graph.post = AsyncMock()
+    return graph
+
+
+@pytest.fixture
+def cache():
+    return DeviceComplianceCache(ttl_seconds=5)
+
+
+@pytest.fixture
+def connector(mock_graph, cache):
+    return IntuneConnector(graph_client=mock_graph, cache=cache)
+
+
+@pytest.fixture
+def ctx():
+    return ConnectorContext(gsap_context_id="test-ac-123")
+
+
+# ── list_devices ──────────────────────────────────────────────
+
+@pytest.mark.asyncio
+async def test_list_devices(connector, mock_graph, ctx):
+    mock_graph.get.return_value = {
+        "value": [
+            {
+                "id": "dev-1",
+                "deviceName": "LAPTOP-001",
+                "operatingSystem": "Windows",
+                "osVersion": "10.0.19045",
+                "complianceState": "compliant",
+                "lastSyncDateTime": "2026-04-14T00:00:00Z",
+                "userPrincipalName": "alice@contoso.com",
+                "azureADDeviceId": "entra-dev-1",
+            },
+            {
+                "id": "dev-2",
+                "deviceName": "PHONE-001",
+                "operatingSystem": "iOS",
+                "osVersion": "17.0",
+                "complianceState": "noncompliant",
+            },
+        ]
+    }
+
+    result = await connector.invoke("list_devices", {"top": 10}, ctx)
+
+    assert result.success
+    assert len(result.data) == 2
+    assert result.data[0]["device_id"] == "dev-1"
+    assert result.data[0]["compliance_state"] == "compliant"
+    assert result.data[1]["compliance_state"] == "noncompliant"
+
+
+# ── get_compliance ────────────────────────────────────────────
+
+@pytest.mark.asyncio
+async def test_get_compliance_compliant(connector, mock_graph, ctx):
+    mock_graph.get.return_value = {
+        "id": "dev-1",
+        "complianceState": "compliant",
+        "lastSyncDateTime": "2026-04-14T00:00:00Z",
+    }
+
+    result = await connector.invoke("get_compliance", {"device_id": "dev-1"}, ctx)
+
+    assert result.success
+    assert result.data["compliant"] is True
+    assert result.data["state"] == "compliant"
+
+
+@pytest.mark.asyncio
+async def test_get_compliance_noncompliant(connector, mock_graph, ctx):
+    mock_graph.get.return_value = {
+        "id": "dev-1",
+        "complianceState": "noncompliant",
+    }
+
+    result = await connector.invoke("get_compliance", {"device_id": "dev-1"}, ctx)
+
+    assert result.success
+    assert result.data["compliant"] is False
+    assert result.data["state"] == "noncompliant"
+
+
+@pytest.mark.asyncio
+async def test_get_compliance_uses_cache(connector, mock_graph, cache, ctx):
+    # Pre-populate cache
+    state = ComplianceState(
+        device_id="dev-cached", compliant=True, state="compliant",
+        last_evaluated=datetime.now(UTC),
+    )
+    await cache.set("dev-cached", state)
+
+    result = await connector.invoke("get_compliance", {"device_id": "dev-cached"}, ctx)
+
+    assert result.success
+    assert result.data["compliant"] is True
+    # Graph API should NOT have been called
+    mock_graph.get.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_get_compliance_missing_device_id(connector, ctx):
+    result = await connector.invoke("get_compliance", {}, ctx)
+    assert not result.success
+    assert "device_id required" in result.error
+
+
+# ── remote_lock ───────────────────────────────────────────────
+
+@pytest.mark.asyncio
+async def test_remote_lock(connector, mock_graph, ctx):
+    resp = MagicMock()
+    resp.status_code = 204
+    mock_graph.post.return_value = resp
+
+    result = await connector.invoke("remote_lock", {"device_id": "dev-1"}, ctx)
+
+    assert result.success
+    assert result.data["locked"] is True
+
+
+# ── unknown operation ─────────────────────────────────────────
+
+@pytest.mark.asyncio
+async def test_unknown_operation(connector, ctx):
+    result = await connector.invoke("hack_device", {}, ctx)
+    assert not result.success
+    assert "Unknown operation" in result.error
+
+
+# ── health_check ──────────────────────────────────────────────
+
+def test_health_check(connector):
+    assert connector.health_check() is True
+
+
+def test_health_check_unconfigured():
+    graph = MagicMock(spec=GraphClient)
+    graph.tenant_id = ""
+    graph.client_id = ""
+    conn = IntuneConnector(graph_client=graph)
+    assert conn.health_check() is False
+
+
+# ── DeviceComplianceCache ─────────────────────────────────────
+
+@pytest.mark.asyncio
+async def test_cache_set_and_get(cache):
+    state = ComplianceState(
+        device_id="dev-1", compliant=True, state="compliant",
+        last_evaluated=datetime.now(UTC),
+    )
+    await cache.set("dev-1", state)
+    result = await cache.get("dev-1")
+    assert result is not None
+    assert result.compliant is True
+
+
+@pytest.mark.asyncio
+async def test_cache_ttl_expiry():
+    cache = DeviceComplianceCache(ttl_seconds=0)
+    state = ComplianceState(
+        device_id="dev-1", compliant=True, state="compliant",
+        last_evaluated=datetime.now(UTC),
+    )
+    await cache.set("dev-1", state)
+    # TTL is 0, so it should be expired immediately
+    time.sleep(0.01)
+    result = await cache.get("dev-1")
+    assert result is None
+
+
+@pytest.mark.asyncio
+async def test_cache_miss():
+    cache = DeviceComplianceCache()
+    result = await cache.get("nonexistent")
+    assert result is None
+
+
+# ── Connector catalog conditional registration ────────────────
+
+@pytest.mark.asyncio
+async def test_intune_not_in_catalog_when_disabled(client):
+    """Intune connector should NOT appear when intune_enabled=False (default)."""
+    resp = await client.get("/connectors/")
+    assert resp.status_code == 200
+    ids = [c["connector_id"] for c in resp.json()]
+    assert "intune" not in ids
+
+
+@pytest.fixture
+async def client():
+    """Reuse the broker test client fixture pattern."""
+    from httpx import AsyncClient, ASGITransport
+    from gsap_broker.app import app
+    async with AsyncClient(transport=ASGITransport(app=app), base_url="http://test") as c:
+        yield c