diff --git a/capabilities/ghostwriter-readonly/capability.yaml b/capabilities/ghostwriter-readonly/capability.yaml
index 816bbe1..a453338 100644
--- a/capabilities/ghostwriter-readonly/capability.yaml
+++ b/capabilities/ghostwriter-readonly/capability.yaml
@@ -1,6 +1,6 @@
 schema: 1
 name: ghostwriter-readonly
-version: "1.0.0"
+version: "1.0.1"
 description: >
   Read-only GhostWriter integration. Query clients, projects, findings,
   objectives, targets, scope, deconflictions, evidence, observations,
diff --git a/capabilities/ghostwriter-readonly/mcp/server.py b/capabilities/ghostwriter-readonly/mcp/server.py
index 16ba370..2f26008 100644
--- a/capabilities/ghostwriter-readonly/mcp/server.py
+++ b/capabilities/ghostwriter-readonly/mcp/server.py
@@ -2,8 +2,8 @@
 # /// script
 # requires-python = ">=3.11"
 # dependencies = [
-#   "fastmcp>=2.0",
-#   "gql[aiohttp,websockets]>=3.0,<4.0",
+#   "fastmcp>=3.2.0",
+#   "gql[aiohttp,websockets]>=4.0",
 #   "aiohttp>=3.9,<4.0",
 #   "pydantic>=2.0,<3.0",
 # ]
@@ -595,7 +595,9 @@ async def _ensure_connected() -> AsyncClientSession:
 
 async def _run_query(query: str, variables: GqlVariables | None = None) -> JsonObject:
     session = await _ensure_connected()
-    result = await session.execute(gql_parse(query), variable_values=variables)
+    request = gql_parse(query)
+    request.variable_values = variables
+    result = await session.execute(request)
     return result if isinstance(result, dict) else {}
 
 
diff --git a/capabilities/ghostwriter-readonly/mcp/test_server.py b/capabilities/ghostwriter-readonly/mcp/test_server.py
index da9f51c..629230f 100644
--- a/capabilities/ghostwriter-readonly/mcp/test_server.py
+++ b/capabilities/ghostwriter-readonly/mcp/test_server.py
@@ -4,8 +4,8 @@
 # dependencies = [
 #   "pytest>=8.0",
 #   "pytest-asyncio>=0.23",
-#   "fastmcp>=2.0",
-#   "gql[aiohttp,websockets]>=3.0,<4.0",
+#   "fastmcp>=3.2.0",
+#   "gql[aiohttp,websockets]>=4.0",
 #   "aiohttp>=3.9,<4.0",
 #   "pydantic>=2.0,<3.0",
 # ]
@@ -15,9 +15,11 @@
 from __future__ import annotations
 
 import sys
+import warnings
 from pathlib import Path
 
 import pytest
+from aiohttp import web
 
 sys.path.insert(0, str(Path(__file__).parent))
 import server
@@ -27,8 +29,8 @@ class TestToolRegistration:
     def test_expected_tools_registered(self):
         import asyncio
 
-        tools = asyncio.run(server.mcp.get_tools())
-        tool_names = set(tools) if isinstance(tools, dict) else {t.name for t in tools}
+        tools = asyncio.run(server.mcp.list_tools())
+        tool_names = {t.name for t in tools}
         expected = {
             "get_status",
             "list_clients",
@@ -60,7 +62,7 @@ def test_expected_tools_registered(self):
     def test_tool_count(self):
         import asyncio
 
-        tools = asyncio.run(server.mcp.get_tools())
+        tools = asyncio.run(server.mcp.list_tools())
         assert len(tools) == 22
 
 
@@ -103,6 +105,47 @@ async def test_ensure_connected_errors_without_credentials(self, monkeypatch):
             await server._ensure_connected()
 
 
+class TestRunQuery:
+    @pytest.mark.asyncio
+    async def test_variables_sent_without_deprecation_warning(self, monkeypatch):
+        """Variables reach the wire on the gql 4 request object, with no deprecation warning."""
+        bodies: list[dict] = []
+        data = {"client_aggregate": {"aggregate": {"count": 0}}, "finding_by_pk": None}
+
+        async def handler(request: web.Request) -> web.Response:
+            bodies.append(await request.json())
+            return web.json_response({"data": data})
+
+        app = web.Application()
+        app.router.add_post(server.GRAPHQL_PATH, handler)
+        runner = web.AppRunner(app)
+        await runner.setup()
+        site = web.TCPSite(runner, "127.0.0.1", 0)
+        await site.start()
+        port = runner.addresses[0][1]
+
+        monkeypatch.setenv("GHOSTWRITER_URL", f"http://127.0.0.1:{port}")
+        monkeypatch.setenv("GHOSTWRITER_API_TOKEN", "tok")
+        monkeypatch.setattr(server, "_gql_client", None)
+        monkeypatch.setattr(server, "_gql_session", None)
+        monkeypatch.setattr(server, "_config", None)
+        try:
+            with warnings.catch_warnings(record=True) as caught:
+                warnings.simplefilter("always")
+                result = await server._run_query(
+                    "query q($id: bigint!) { finding_by_pk(id: $id) { id } }",
+                    {"id": 7},
+                )
+            assert result == data
+            assert bodies[-1]["variables"] == {"id": 7}
+            assert not [w for w in caught if "variable_values" in str(w.message)]
+            assert not [w for w in caught if str(w.message).startswith("Using variable_values")]
+        finally:
+            if server._gql_client is not None:
+                await server._gql_client.close_async()
+            await runner.cleanup()
+
+
 class TestNoteTables:
     def test_all_note_types_mapped(self):
         for note_type in ("client", "project", "domain", "server"):
diff --git a/capabilities/ghostwriter-readonly/skills/ghostwriter-readonly/scripts/ghostwriter_read.py b/capabilities/ghostwriter-readonly/skills/ghostwriter-readonly/scripts/ghostwriter_read.py
index 5bd9946..510d171 100755
--- a/capabilities/ghostwriter-readonly/skills/ghostwriter-readonly/scripts/ghostwriter_read.py
+++ b/capabilities/ghostwriter-readonly/skills/ghostwriter-readonly/scripts/ghostwriter_read.py
@@ -2,7 +2,7 @@
 # /// script
 # requires-python = ">=3.11"
 # dependencies = [
-#   "gql[aiohttp,websockets]>=3.0,<4.0",
+#   "gql[aiohttp,websockets]>=4.0",
 #   "aiohttp>=3.9,<4.0",
 #   "pydantic>=2.0,<3.0",
 # ]
@@ -428,7 +428,9 @@ async def run_query(
     variables: dict[str, int | str] | None = None,
 ) -> dict[str, object]:
     """Execute a GraphQL query and return the result dict."""
-    result = await session.execute(gql_parse(query), variable_values=variables)
+    request = gql_parse(query)
+    request.variable_values = variables
+    result = await session.execute(request)
     return result  # type: ignore[return-value]