Issue: anthropics/claude-code#25193
When using Claude Code with AWS Bedrock (CLAUDE_CODE_USE_BEDROCK=1), spawning team agent teammates fails because the Bedrock model identifier (e.g., us.anthropic.claude-opus-4-6-v1) gets normalized to the Anthropic API format (claude-opus-4-6), which Bedrock does not recognize.
This causes all teammate processes to fail with: