MCP connectors (Notion/Gmail/Slack/Calendar/Drive) disconnect daily in VSCode extension, only fixed by starting a new conversation
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
Environment
Claude Code VSCode extension
Connected MCP servers: Notion, Gmail, Slack, Google Calendar, Google Drive (and Zapier)
OS: Windows 11
Description
All MCP connectors disconnect simultaneously roughly once per day during normal working hours. When this happens, none of the connector tools (Notion/Gmail/Slack/Calendar/Drive) appear as available tools within the current conversation, even though the claude.ai "Connectors" settings page shows all of them as connected at the account level.
Steps to reproduce
Start a Claude Code session in the VSCode extension with multiple MCP connectors enabled.
Continue working in the same conversation for an extended period (observed around ~8 hours).
MCP tools stop being available/discoverable in that conversation.
What Should Happen?
Expected behavior
MCP connectors should remain available throughout a work session, or reconnect automatically without requiring a new conversation.
Error Messages/Logs
Steps to Reproduce
Steps to reproduce
Start a Claude Code session in the VSCode extension with multiple MCP connectors enabled.
Continue working in the same conversation for an extended period (observed around ~8 hours).
MCP tools stop being available/discoverable in that conversation.
Claude Model
Sonnet (default)
Is this a regression?
I don't know
Last Working Version
_No response_
Claude Code Version
2.1.220 (Claude Code)
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
VS Code integrated terminal
Additional Information
Suspected cause (unconfirmed)
OAuth access token expiry (~8 hours observed) may not be getting refreshed properly by the refresh token in the background, causing all connectors to drop together mid-session.
Impact
Occurring daily, requiring a full conversation restart (losing session context) to restore connector access.