Agent Server port conflict issue

[ulivz]

Version
latest

Issue Type

• Agent TARS CLI (@agent-tars/server)

Model Provider

• Other (N/A)

Problem Description

• Expected: Should be able to run multiple Agent instances simultaneously
• Actual: Second instance fails with port conflict error

Error Logs

Error: listen EADDRINUSE: address already in use :::8889
    at Server.setupListenHandle [as _listen2] (node:net:1939:16)
    at listenInCluster (node:net:1996:12)
    at Server.listen (node:net:2101:7)
    at /Users/chenhaoli/workspace/code/UI-TARS-desktop-5/multimodal/tarko/agent-server/dist/index.js:18313:33
    at new Promise (<anonymous>)
    at AgentServer.start (/Users/chenhaoli/workspace/code/UI-TARS-desktop-5/multimodal/tarko/agent-server/dist/index.js:18312:24)
    at async startInteractiveWebUI (/Users/chenhaoli/workspace/code/UI-TARS-desktop-5/multimodal/tarko/agent-cli/dist/index.js:8861:32)
    at async CAC.<anonymous> (/Users/chenhaoli/workspace/code/UI-TARS-desktop-5/multimodal/tarko/agent-cli/dist/index.js:9780:25)

All related files set default port to 8888:

• multimodal/tarko/agent-cli/src/config/builder.ts
• multimodal/tarko/agent-cli/src/core/commands/start.ts
• multimodal/tarko/agent-cli/src/core/commands/serve.ts

Need support for automatic port allocation or dynamic port configuration.