Environment

• Platform (select one):
  • Anthropic API
  • AWS Bedrock
  • Google Vertex AI
  • Other: Claude Code on WSL2
• Claude CLI version: 1.0.77 (Claude Code)
• Operating System: Ubuntu WSL2

Bug Description

I terminated: Bash (mkdir -p folder) with double escape and my next command I receieved:

API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.21: tool_use ids
were found without tool_result blocks immediately after: toolu_019MgEXFFrY5MHhv9PqJDRQe. Each tool_use
block must have a corresponding tool_result block in the next message."}}

Steps to Reproduce

Haven't been able to reproduce

Expected Behavior

It should have accepted the next prompt and not 400'd