[BUG] Repeated API Error 400

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.16
• Operating System: Ubuntu 22.04
• Terminal: bash in vscode

Bug Description

<!-- A clear and concise description of the bug -->

I am getting an API error -- no matter what I type. Here is the last thing I typed:

> I had just asked you to create extensive documentation, as this was a tricky 
  issue. Read the mathematical background and the test design / analysis framework 
  carefully, then write documentation on how we tuned, and also user documentation 
  on how to select # of banks, configure, etc.
  ⎿ API Error: 400 
    {"type":"error","error":{"type":"invalid_request_error","message":"messages.17: 
    `tool_use` ids were found without `tool_result` blocks immediately after: 
    toolu_015REhjCAk7wvjVLAxx4tABq. Each `tool_use` block must have a corresponding 
    `tool_result` block in the next message."}}

Steps to Reproduce

This happened in the middle of a session. When I stopped and restarted (without continue), I still got the same error after two interactions. However, in another window, I was able to restart, and now running for 5 minutes.

Expected Behavior

<!-- What you expected to happen -->

Actual Behavior

<!-- What actually happened -->

Additional Context

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