ask_work_iq doesn't work in MCP version 0.4.0

ask_work_iq tool always returns error in MCP version 0.4.0

{"response":null,"conversationId":null,"error":"An error occurred while processing your request."}

Oddly, it works fine when using the CLI.

However, on older version 0.2.8 it works fine i.e. both CLI and MCP work fine there but for 0.4.0 only CLI works and MCP tool doesn't.

Logs

2026-03-12 12:37:45.341 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.InteractiveAuthProvider[0]\r\n"
2026-03-12 12:37:45.341 [warning] Failed to parse message: " Starting authentication flow\r\n"
2026-03-12 12:37:45.342 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.InteractiveAuthProvider[0]\r\n"
2026-03-12 12:37:45.342 [warning] Failed to parse message: " Scopes requested: https://graph.microsoft.com/.default\r\n"
2026-03-12 12:37:45.342 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.InteractiveAuthProvider[0]\r\n"
2026-03-12 12:37:45.342 [warning] Failed to parse message: " Account identifier provided: True\r\n"
2026-03-12 12:37:45.343 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.AccountManager[0]\r\n"
2026-03-12 12:37:45.343 [warning] Failed to parse message: " Retrieving accounts from cache\r\n"
2026-03-12 12:37:45.344 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.AccountManager[0]\r\n"
2026-03-12 12:37:45.344 [warning] Failed to parse message: " Found 1 cached account(s)\r\n"
2026-03-12 12:37:45.344 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.AccountManager[0]\r\n"
2026-03-12 12:37:45.345 [warning] Failed to parse message: " Looking for specific account in cache\r\n"
2026-03-12 12:37:45.345 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.AccountManager[0]\r\n"
2026-03-12 12:37:45.345 [warning] Failed to parse message: " Found matching account in cache\r\n"
2026-03-12 12:37:45.345 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.InteractiveAuthProvider[0]\r\n"
2026-03-12 12:37:45.346 [warning] Failed to parse message: " Attempting silent token acquisition with determined account\r\n"
2026-03-12 12:37:45.390 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.InteractiveAuthProvider[0]\r\n"
2026-03-12 12:37:45.391 [warning] Failed to parse message: " Silent authentication failed with MsalUiRequiredException: Could not find a WAM account for the selected user. Error: Status: AccountNotFound\r\n"
2026-03-12 12:37:45.391 [warning] Failed to parse message: " Context: Account with id '(pii)' not found\r\n"
2026-03-12 12:37:45.392 [warning] Failed to parse message: " Tag: 0x1f553780\r\n"
2026-03-12 12:37:45.392 [warning] Failed to parse message: "dbug: Microsoft.WorkIQ.Auth.InteractiveAuthProvider[0]\r\n"
2026-03-12 12:37:45.392 [warning] Failed to parse message: " Launching interactive authentication flow\r\n"

note: interactive auth never launches here, and ideally silent should've worked in the first place

Start by reproducing ask_work_iq through the MCP interface on version 0.4.0, then compare it with the CLI and version 0.2.8. Trace the authentication flow around the logged silent-token failure and missing interactive launch. Done means MCP requests authenticate and return a response without the parsing errors shown in the issue.