diff --git a/runners/agent-runner/src/index.ts b/runners/agent-runner/src/index.ts
index 29261b4..83eb598 100644
--- a/runners/agent-runner/src/index.ts
+++ b/runners/agent-runner/src/index.ts
@@ -60,6 +60,7 @@ import {
   createSanitizeBashHook,
 } from './runner-hooks.js';
 import { buildClaudeSdkEnv } from './sdk-env.js';
+import { buildEjclawMcpServerConfig } from './mcp-config.js';
 
 interface RunnerInput {
   prompt: string;
@@ -299,23 +300,15 @@ async function runQuery(
       settingSources: ['project', 'user'],
       abortController: agentAbortController,
       mcpServers: {
-        ejclaw: {
-          command: 'node',
-          args: [mcpServerPath],
-          env: {
-            EJCLAW_CHAT_JID: runnerInput.chatJid,
-            EJCLAW_GROUP_FOLDER: runnerInput.groupFolder,
-            EJCLAW_IS_MAIN: runnerInput.isMain ? '1' : '0',
-            EJCLAW_AGENT_TYPE: process.env.EJCLAW_AGENT_TYPE || 'claude-code',
-            EJCLAW_ROOM_ROLE: runnerInput.roomRoleContext?.role || '',
-            ...(process.env.EJCLAW_IPC_DIR && {
-              EJCLAW_IPC_DIR: process.env.EJCLAW_IPC_DIR,
-            }),
-            ...(process.env.EJCLAW_HOST_IPC_DIR && {
-              EJCLAW_HOST_IPC_DIR: process.env.EJCLAW_HOST_IPC_DIR,
-            }),
-          },
-        },
+        ejclaw: buildEjclawMcpServerConfig(mcpServerPath, {
+          chatJid: runnerInput.chatJid,
+          groupFolder: runnerInput.groupFolder,
+          isMain: runnerInput.isMain,
+          agentType: process.env.EJCLAW_AGENT_TYPE || 'claude-code',
+          roomRole: runnerInput.roomRoleContext?.role || '',
+          ipcDir: process.env.EJCLAW_IPC_DIR,
+          hostIpcDir: process.env.EJCLAW_HOST_IPC_DIR,
+        }),
       },
       hooks: {
         PreCompact: [
diff --git a/runners/agent-runner/src/mcp-config.ts b/runners/agent-runner/src/mcp-config.ts
new file mode 100644
index 0000000..d9a2715
--- /dev/null
+++ b/runners/agent-runner/src/mcp-config.ts
@@ -0,0 +1,35 @@
+import type { McpStdioServerConfig } from '@anthropic-ai/claude-agent-sdk';
+
+export interface EjclawMcpServerConfigInput {
+  chatJid: string;
+  groupFolder: string;
+  isMain: boolean;
+  agentType: string;
+  roomRole: string;
+  ipcDir?: string;
+  hostIpcDir?: string;
+}
+
+export function buildEjclawMcpServerConfig(
+  mcpServerPath: string,
+  input: EjclawMcpServerConfigInput,
+): McpStdioServerConfig {
+  return {
+    command: 'node',
+    args: [mcpServerPath],
+    alwaysLoad: true,
+    env: {
+      EJCLAW_CHAT_JID: input.chatJid,
+      EJCLAW_GROUP_FOLDER: input.groupFolder,
+      EJCLAW_IS_MAIN: input.isMain ? '1' : '0',
+      EJCLAW_AGENT_TYPE: input.agentType,
+      EJCLAW_ROOM_ROLE: input.roomRole,
+      ...(input.ipcDir && {
+        EJCLAW_IPC_DIR: input.ipcDir,
+      }),
+      ...(input.hostIpcDir && {
+        EJCLAW_HOST_IPC_DIR: input.hostIpcDir,
+      }),
+    },
+  };
+}
diff --git a/runners/agent-runner/test/mcp-config.test.ts b/runners/agent-runner/test/mcp-config.test.ts
new file mode 100644
index 0000000..cc28ac4
--- /dev/null
+++ b/runners/agent-runner/test/mcp-config.test.ts
@@ -0,0 +1,32 @@
+import { describe, expect, it } from 'vitest';
+
+import { buildEjclawMcpServerConfig } from '../src/mcp-config.js';
+
+describe('ejclaw MCP config', () => {
+  it('always loads EJClaw MCP tools on turn one and preserves runtime env', () => {
+    expect(
+      buildEjclawMcpServerConfig('/runner/dist/ipc-mcp-stdio.js', {
+        chatJid: 'dc:room',
+        groupFolder: 'ejclaw',
+        isMain: true,
+        agentType: 'claude-code',
+        roomRole: 'reviewer',
+        ipcDir: '/tmp/ipc/task',
+        hostIpcDir: '/tmp/ipc/host',
+      }),
+    ).toEqual({
+      command: 'node',
+      args: ['/runner/dist/ipc-mcp-stdio.js'],
+      alwaysLoad: true,
+      env: {
+        EJCLAW_CHAT_JID: 'dc:room',
+        EJCLAW_GROUP_FOLDER: 'ejclaw',
+        EJCLAW_IS_MAIN: '1',
+        EJCLAW_AGENT_TYPE: 'claude-code',
+        EJCLAW_ROOM_ROLE: 'reviewer',
+        EJCLAW_IPC_DIR: '/tmp/ipc/task',
+        EJCLAW_HOST_IPC_DIR: '/tmp/ipc/host',
+      },
+    });
+  });
+});
diff --git a/runners/shared/package.json b/runners/shared/package.json
index e5c843c..b77f093 100644
--- a/runners/shared/package.json
+++ b/runners/shared/package.json
@@ -8,7 +8,7 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
-      "default": "./src/index.ts"
+      "default": "./dist/index.js"
     }
   },
   "scripts": {
diff --git a/runners/shared/test/package-exports.test.ts b/runners/shared/test/package-exports.test.ts
new file mode 100644
index 0000000..d517146
--- /dev/null
+++ b/runners/shared/test/package-exports.test.ts
@@ -0,0 +1,19 @@
+import fs from 'fs';
+import path from 'path';
+import { describe, expect, it } from 'vitest';
+
+describe('runner shared package exports', () => {
+  it('points runtime imports at built JavaScript for node-launched MCP servers', () => {
+    const packageJson = JSON.parse(
+      fs.readFileSync(
+        path.resolve(import.meta.dirname, '../package.json'),
+        'utf8',
+      ),
+    ) as { exports: { '.': { default: string; types: string } } };
+
+    expect(packageJson.exports['.']).toEqual({
+      types: './src/index.ts',
+      default: './dist/index.js',
+    });
+  });
+});
diff --git a/vitest.config.ts b/vitest.config.ts
index ec3bbe6..a8291d0 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -5,6 +5,10 @@ export default defineConfig({
   resolve: {
     alias: {
       'bun:sqlite': path.resolve(__dirname, 'test/bun-sqlite-shim.ts'),
+      'ejclaw-runners-shared': path.resolve(
+        __dirname,
+        'runners/shared/src/index.ts',
+      ),
     },
   },
   test: {