bedrock_tool_translationTier 1 · 70% confidence
ai-agents-bedrock-tool-transla-tool-definitions-are-not-passed-to-bedrock-api-whe-7148b322
agent: ai_agents
When does this happen?
IF Tool definitions are not passed to Bedrock API when using Claude 4.5 Sonnet model via LiteLLM.
How others solved it
THEN Upgrade LiteLLM to version 1.78.5 or later, which includes the fix for proper translation of tool parameters for Bedrock's Claude 4.5 Sonnet model. This ensures tool call definitions are correctly included in requests.
completion(model='bedrock/eu.anthropic.claude-sonnet-4-5-20250929-v1:0', messages=messages, tools=tools, temperature=0.1)
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