[BUG] claude doesn't wait until mcp servers are connected before initial prompt

[confususs]

Environment

• Platform (select one):
  • Anthropic API
  • AWS Bedrock
  • Google Vertex AI
  • Other:
• Claude CLI version: 0.2.57
• Operating System: NixOS
• Terminal: alacritty

Bug Description

When using claude and prompting too fast, or when using claude "", mcp servers are not utilized as it sometimes takes a few seconds before they are connected.

Steps to Reproduce

1. Have an mcp server that doesn't connect immediately
2. Use a prompt where you expect the mcp server to be utilized (e.g. have a playwright mcp server, ask it to use playwright to visit X)
3. claude will respond without utilizing the mcp server

Expected Behavior

1. Initial prompt is delayed until mcp servers are connected

Actual Behavior

1. Initial prompt doesn't wait for mcp servers to be connected

Additional Context

It would be nice to at least have an option like '--wait-for-mcp-servers' when calling claude.

[ashwin-ant]

This is a good request. We don't block on MCP servers right now because some servers can take 10+ seconds to start, and we don't want that to slow down the main startup. But making an optional flag sounds okay.