Notify when MCP reconnection gives up

Mid-session drops of a remote server

Claude Code reconnects a dropped remote server with exponential backoff: up to five attempts, starting at a one-second delay and doubling it each time. What you see depends on how you're running Claude Code:

• In an interactive session: /mcp shows the server as pending while Claude Code reconnects. After five failed attempts, Claude Code marks the server as failed, or as needing authentication when the server needs authorizing again. When it marks the server as failed, you see an MCP server "<name>" disconnected · open /mcp to reconnect notification. You can retry manually from /mcp.
• In claude -p runs and Agent SDK sessions: Claude Code reconnects on the same schedule, with no /mcp panel to show the attempts.