[BUG] Persistent API Error After Teleporting Session

Resolved 💬 15 comments Opened Nov 5, 2025 by J268sing Closed Feb 28, 2026

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?

After using claude --teleport session_011CUpE6ZSg5RQbETyMDpZha, every subsequent command results in a 400 API error about malformed tool_result blocks.

What Should Happen?

Teleporting should transfer the session cleanly without corrupting conversation state.

Actual Behavior:
Session state corruption that persists even after reinstalling Claude Code.

Error Messages/Logs

API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"messages.48.content.0: unexpected tool_use_id found in tool_result blocks: toolu_01XmC5ysqAiDPKb5kABUiSCi. Each tool_result block must have a corresponding tool_use block in the previous message."}}

Steps to Reproduce

  1. Start a Claude Code session
  2. Used claude --teleport session_011CUpE6ZSg5RQbETyMDpZha
  3. Attempted to run any command
  4. Received 400 error on every message

Troubleshooting Attempted:

  • ✅ Exited and restarted Claude Code
  • ✅ Killed all Claude processes
  • ✅ Uninstalled and reinstalled Claude Code
  • ✅ Tried in different directories
  • ❌ Error persists

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.33 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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