fix(mcp-client): await Cordis startup discovery

packages/self-modification/repository-plugin/tests/mcp-format.spec.ts

@@ -22,6 +22,7 @@ describe('repository plugin common .mcp.json support', () => {
       serverName: 'expo',
       url: 'https://mcp.expo.dev/mcp',
       headers: {},
+      failOnStartupError: true,
     }])
   })
 
@@ -43,6 +44,7 @@ describe('repository plugin common .mcp.json support', () => {
       args: ['--endpoint', 'http://localhost:8000'],
       env: { DJ_API_URL: 'http://localhost:8000' },
       cwd: '/plugin',
+      failOnStartupError: true,
     }])
   })
 
@@ -74,12 +76,14 @@ describe('repository plugin common .mcp.json support', () => {
         args: [],
         env: {},
         cwd: '/plugin',
+        failOnStartupError: true,
       },
       {
         transport: 'streamable-http',
         serverName: 'remote',
         url: 'http://localhost:3000/mcp',
         headers: { Authorization: 'Bearer test-token' },
+        failOnStartupError: true,
       },
     ])
   })

packages/self-modification/repository-plugin/tests/repository-plugin.spec.ts

@@ -261,7 +261,7 @@ describe('prepared repository plugin Loader composition', () => {
     await ctx.fiber.dispose()
   })
 
-  it('delegates an MCP-only plugin to the existing client without turning connect failure into Loader failure', async () => {
+  it('fails an MCP repository plugin load when its declared server cannot connect', async () => {
     const root = await temporaryDirectory('mcp-loader')
     await writeFile(join(root, '.mcp.json'), JSON.stringify({
       mcpServers: { offline: { command: join(root, 'missing-mcp-command') } },
@@ -275,12 +275,10 @@ describe('prepared repository plugin Loader composition', () => {
     await ctx.plugin(SystemPrompt)
     await ctx.plugin(ToolRegistry)
     await ctx.plugin(RepositoryPlugin)
-    const id = await ctx.loader.create({
+    await expect(ctx.loader.create({
       name: pathToFileURL(join(directory, RepositoryPlugin.PREPARED_ENTRY_FILENAME)).href,
-    })
-    await ctx.loader.await()
+    })).rejects.toThrow('initial connection or tool discovery failed')
     expect(ctx.tools.schemas().some(tool => tool.name.startsWith('mcp__offline__'))).toBe(false)
-    await ctx.loader.remove(id)
     await ctx.fiber.dispose()
   })