diff --git a/src/mobu/handlers/external.py b/src/mobu/handlers/external.py
index 87fc5324..c61933bc 100644
--- a/src/mobu/handlers/external.py
+++ b/src/mobu/handlers/external.py
@@ -14,10 +14,13 @@
 
 from ..config import config
 from ..dependencies.context import RequestContext, context_dependency
+from ..dependencies.github import maybe_ci_manager_dependency
 from ..models.flock import FlockConfig, FlockData, FlockSummary
 from ..models.index import Index
 from ..models.monkey import MonkeyData
 from ..models.solitary import SolitaryConfig, SolitaryResult
+from ..models.summary import CombinedSummary
+from ..services.github_ci.ci_manager import CiManager
 
 external_router = APIRouter(route_class=SlackRouteErrorHandler)
 """FastAPI router for all external handlers."""
@@ -239,10 +242,16 @@ async def put_run(
 @external_router.get(
     "/summary",
     response_class=FormattedJSONResponse,
-    response_model=list[FlockSummary],
-    summary="Summary of statistics for all flocks",
+    response_model=CombinedSummary,
+    summary="Summary of all app state",
 )
 async def get_summary(
     context: Annotated[RequestContext, Depends(context_dependency)],
-) -> list[FlockSummary]:
-    return context.manager.summarize_flocks()
+    ci_manager: Annotated[
+        CiManager | None, Depends(maybe_ci_manager_dependency)
+    ],
+) -> CombinedSummary:
+    return CombinedSummary(
+        flocks=context.manager.summarize_flocks(),
+        ci_manager=ci_manager.summarize() if ci_manager else None,
+    )
diff --git a/src/mobu/models/ci_manager.py b/src/mobu/models/ci_manager.py
new file mode 100644
index 00000000..be66d5b8
--- /dev/null
+++ b/src/mobu/models/ci_manager.py
@@ -0,0 +1,47 @@
+"""Models for CiManager."""
+
+from pydantic import BaseModel, Field, HttpUrl
+
+from .user import User
+
+__all__ = [
+    "CiJobSummary",
+    "CiManagerSummary",
+    "CiWorkerSummary",
+]
+
+
+class CiJobSummary(BaseModel):
+    """Information about a job."""
+
+    commit_url: HttpUrl = Field(
+        ...,
+        title="GitHub URL to the commit being worked on",
+    )
+
+
+class CiWorkerSummary(BaseModel):
+    """Information about a running worker."""
+
+    user: User = Field(..., title="User that the worker works as")
+
+    num_processed: int = Field(
+        ...,
+        title="Number of jobs this worker has processed since mobu started",
+    )
+
+    current_job: CiJobSummary | None = Field(
+        ..., title="The job the worker is currently running, if any"
+    )
+
+
+class CiManagerSummary(BaseModel):
+    """Information about the CiManager."""
+
+    workers: list[CiWorkerSummary] = Field(
+        ..., title="The workers being managed"
+    )
+
+    num_queued: int = Field(
+        ..., title="Number of jobs waiting for a free worker"
+    )
diff --git a/src/mobu/models/summary.py b/src/mobu/models/summary.py
new file mode 100644
index 00000000..6f30cc74
--- /dev/null
+++ b/src/mobu/models/summary.py
@@ -0,0 +1,17 @@
+"""Combined summary of different functionalities."""
+
+from pydantic import BaseModel, Field
+
+from .ci_manager import CiManagerSummary
+from .flock import FlockSummary
+
+
+class CombinedSummary(BaseModel):
+    """Summary of all app state."""
+
+    flocks: list[FlockSummary] = Field(
+        ..., title="Info about all running flocks"
+    )
+    ci_manager: CiManagerSummary | None = Field(
+        None, title="Info about GitHub CI workers"
+    )
diff --git a/tests/handlers/flock_test.py b/tests/handlers/flock_test.py
index bee63170..c868a256 100644
--- a/tests/handlers/flock_test.py
+++ b/tests/handlers/flock_test.py
@@ -110,7 +110,7 @@ async def test_start_stop_refresh(
 
     r = await client.get("/mobu/summary")
     assert r.status_code == 200
-    assert r.json() == [summary]
+    assert r.json() == {"flocks": [summary], "ci_manager": None}
 
     r = await client.get("/mobu/flocks/other")
     assert r.status_code == 404