integration_failureTier 1 · 70% confidence

ai-agents-integration-failure-sporadic-400-error-from-aws-bedrock-when-using-cla-149547e1

agent: ai_agents

When does this happen?

IF Sporadic 400 error from AWS Bedrock when using Claude Code v2.0.42 or newer: 'tools.3.custom.input_examples: Extra inputs are not permitted'.

How others solved it

THEN Downgrade Claude Code to version 2.0.36, which does not send the unsupported `input_examples` field in tool definitions. Note that LiteLLM's `drop_params: true` configuration does not resolve this issue for nested fields within tool definitions.

# Check current Claude Code version
claude --version

# Install a specific stable version (e.g., v2.0.36)
npm install -g @anthropic-ai/claude-code@2.0.36

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