diff --git a/docs/module-graph.md b/docs/module-graph.md
index 95d2d3bb0f..63bf9905d9 100644
--- a/docs/module-graph.md
+++ b/docs/module-graph.md
@@ -296,6 +296,7 @@ flowchart TD
   pkg_client_test_runtime --> pkg_client_runtime
   pkg_client_test_runtime --> pkg_client_ui_slots
   pkg_client_test_runtime --> pkg_client_web_react
+  pkg_client_test_runtime --> pkg_host_apiproxy
   pkg_client_test_runtime --> pkg_invariants
   pkg_client_ui_models --> pkg_client_runtime
   pkg_client_ui_models --> pkg_client_ui_slots
@@ -1018,7 +1019,7 @@ flowchart TD
 | [`client-connection`](../packages/client/connection) | `client` | [`host-webserver`](../packages/host/webserver), [`invariants`](../packages/support/invariants) |
 | [`client-hmr`](../packages/client/hmr) | `client` | [`client-modules`](../packages/client/modules), [`host-webserver`](../packages/host/webserver), [`invariants`](../packages/support/invariants) |
 | [`client-locale`](../packages/client/locale) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
-| [`client-test-runtime`](../packages/client/test-runtime) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-web-react`](../packages/client/web-react), [`invariants`](../packages/support/invariants) |
+| [`client-test-runtime`](../packages/client/test-runtime) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-web-react`](../packages/client/web-react), [`host-apiproxy`](../packages/host/apiproxy), [`invariants`](../packages/support/invariants) |
 | [`client-ui-models`](../packages/client/ui-models) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
 | [`client-ui-settings`](../packages/client/ui-settings) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
 | [`client-ui-sidebar`](../packages/client/ui-sidebar) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
diff --git a/packages/client/test-runtime/package.json b/packages/client/test-runtime/package.json
index 6d7093a148..e892d9cd52 100644
--- a/packages/client/test-runtime/package.json
+++ b/packages/client/test-runtime/package.json
@@ -25,7 +25,6 @@
     "vitest": "^4.1.8"
   },
   "peerDependencies": {
-    "@deepseek-ai/dsh-client-connection": "^0.0.1",
     "@deepseek-ai/dsh-client-runtime": "^0.0.1",
     "@deepseek-ai/dsh-client-ui-slots": "^0.0.1",
     "@deepseek-ai/dsh-client-web-react": "^0.0.1",
@@ -36,7 +35,6 @@
     "react-dom": "^18.2.0"
   },
   "devDependencies": {
-    "@deepseek-ai/dsh-client-connection": "workspace:^",
     "@deepseek-ai/dsh-client-runtime": "workspace:^",
     "@deepseek-ai/dsh-client-ui-slots": "workspace:^",
     "@deepseek-ai/dsh-client-web-react": "workspace:^",
diff --git a/packages/client/test-runtime/src/sessions.ts b/packages/client/test-runtime/src/sessions.ts
index 09b8e18a65..a154e11291 100644
--- a/packages/client/test-runtime/src/sessions.ts
+++ b/packages/client/test-runtime/src/sessions.ts
@@ -6,7 +6,6 @@ import type {
   ConversationSnapshot, ISessions, ObservableSnapshot, ProjectionsFace, SessionFace, SessionId,
   SessionListState, SessionProvideDescriptor, SessionSearchResultItem, SessionSummary, SnapshotStore,
 } from '@deepseek-ai/dsh-client-runtime/client'
-import type { RpcResult } from '@deepseek-ai/dsh-client-connection/client'
 // The double reports the wire schema's own search bound, like the production
 // service — a transport-varying limit would be a fiction no client can see.
 import { SESSION_SEARCH_RESULT_LIMIT } from '@deepseek-ai/dsh-host-apiproxy/api'
@@ -410,10 +409,7 @@ export class TestSessions implements ISessions {
    * @param signal - cancellation for a superseded search (recorded and forwarded).
    * @returns the stubbed or empty result page.
    */
-  search(
-    query: string,
-    signal: AbortSignal,
-  ): Promise<RpcResult<{ items: SessionSearchResultItem[]; hasMore: boolean }>> {
+  search(query: string, signal: AbortSignal): ReturnType<ISessions['search']> {
     this.calls.push({ method: 'search', args: [query, signal] })
     return Promise.resolve({ ok: true, value: this.searchStub?.(query, signal) ?? { items: [], hasMore: false } })
   }
diff --git a/packages/client/test-runtime/tsconfig.json b/packages/client/test-runtime/tsconfig.json
index d48a855921..6a758c66f9 100644
--- a/packages/client/test-runtime/tsconfig.json
+++ b/packages/client/test-runtime/tsconfig.json
@@ -23,9 +23,6 @@
     {
       "path": "../../support/invariants"
     },
-    {
-      "path": "../connection"
-    },
     {
       "path": "../../host/apiproxy"
     }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c8ece68942..2cfc761bcd 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -990,9 +990,6 @@ importers:
         specifier: ^4.1.8
         version: 4.1.8(@opentelemetry/api@1.9.1)(@types/node@25.9.3)(@vitest/coverage-v8@4.1.8)(jsdom@29.1.1)(vite@8.0.16(@types/node@25.9.3)(esbuild@0.28.1)(jiti@2.7.0)(tsx@4.22.4)(yaml@2.9.0))
     devDependencies:
-      '@deepseek-ai/dsh-client-connection':
-        specifier: workspace:^
-        version: link:../connection
       '@deepseek-ai/dsh-client-runtime':
         specifier: workspace:^
         version: link:../runtime