diff --git a/packages/examples/tui-demo/package.json b/packages/examples/tui-demo/package.json
index c356105964..841505fb00 100644
--- a/packages/examples/tui-demo/package.json
+++ b/packages/examples/tui-demo/package.json
@@ -64,6 +64,7 @@
     "@deepseek-ai/dsh-llm": "workspace:^",
     "@deepseek-ai/dsh-session": "workspace:^",
     "@deepseek-ai/dsh-session-persistence-jsonl": "workspace:^",
+    "@deepseek-ai/dsh-system-prompt": "workspace:^",
     "@deepseek-ai/dsh-tui": "workspace:^",
     "@deepseek-ai/dsh-tool-ask-user": "workspace:^",
     "@deepseek-ai/dsh-tools": "workspace:^",
diff --git a/packages/ui/stdio/src/invariant.ts b/packages/ui/stdio/src/invariant.ts
deleted file mode 100644
index 37176f11c6..0000000000
--- a/packages/ui/stdio/src/invariant.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-/**
- * Generated invariant ownership companion for `@deepseek-ai/dsh-stdio`.
- * Replace this file with package-owned checks while preserving its registration.
- *
- * @generated scripts/gen-package-invariants.ts
- * @module @deepseek-ai/dsh-stdio/invariant
- */
-
-/* jscpd:ignore-start */
-import type { Context } from 'cordis'
-import type { InvariantInstaller } from '@deepseek-ai/dsh-invariants'
-
-const PACKAGE_NAME = '@deepseek-ai/dsh-stdio'
-
-/** Cordis companion plugin name. */
-export const name = 'stdio-invariant'
-/** Services required before the companion can register. */
-export const inject = ['invariants']
-
-/** No runtime invariant: no package-owned event or mutable-data relation has been identified yet. */
-const install: InvariantInstaller = () => {}
-
-/**
- * Register this package's invariant companion.
- * @param ctx - Cordis context carrying the invariant service.
- * @returns the installed registration's disposer after setup succeeds.
- */
-export const apply = (ctx: Context): Promise<() => void> =>
-  Promise.resolve(ctx.invariants.register(PACKAGE_NAME, install))
-/* jscpd:ignore-end */
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9067fc39b4..5bd0959770 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -930,6 +930,9 @@ importers:
       '@deepseek-ai/dsh-session-persistence-jsonl':
         specifier: workspace:^
         version: link:../../session-persistence/session-persistence-jsonl
+      '@deepseek-ai/dsh-system-prompt':
+        specifier: workspace:^
+        version: link:../../core/system-prompt
       '@deepseek-ai/dsh-tool-ask-user':
         specifier: workspace:^
         version: link:../../ui/tool-ask-user