diff --git a/src/gateway/mcp-http.test.ts b/src/gateway/mcp-http.test.ts
index b053f507c24..b4606c9404c 100644
--- a/src/gateway/mcp-http.test.ts
+++ b/src/gateway/mcp-http.test.ts
@@ -43,7 +43,7 @@ const resolveGatewayScopedToolsMock = vi.hoisted(() =>
   })),
 );
 
-vi.mock("../config/config.js", () => ({
+vi.mock("../config/io.js", () => ({
   getRuntimeConfig: () => ({ session: { mainKey: "main" } }),
 }));
 
@@ -452,6 +452,7 @@ describe("mcp loopback server", () => {
         params: { body: "hello" },
         ctx: expect.objectContaining({
           agentId: "main",
+          config: { session: { mainKey: "main" } },
           sessionKey: "agent:main:main",
         }),
         signal: expect.any(AbortSignal),
diff --git a/src/gateway/mcp-http.ts b/src/gateway/mcp-http.ts
index d2cc9900931..4d6220d617d 100644
--- a/src/gateway/mcp-http.ts
+++ b/src/gateway/mcp-http.ts
@@ -132,6 +132,7 @@ export async function startMcpLoopbackServer(port = 0): Promise<{
             toolSchema: scopedTools.toolSchema,
             hookContext: {
               agentId: scopedTools.agentId,
+              config: cfg,
               sessionKey: requestContext.sessionKey,
             },
             signal: requestAbort.signal,