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Fix Anthropic SDK Bedrock/Vertex clients not raising correct exception types for 413 Request Too Large and 529 Overloaded errors Includes evidence for Anthropic API troubleshooting demand.
Bedrock and Vertex _make_status_error methods missing 413→RequestTooLargeError and 529→OverloadedError mapping (canonical Anthropic client already maps these) fix Anthropic API cache billing extra charges / understand cache_control breakpoint behavior Includes evidence for Anthropic API troubleshooting demand.
Server writes additional cache entries past explicit cache_control breakpoint, billing 1.25x for tokens that are never read fix Anthropic SDK append_messages infinite loop / tool runner loop stuck Includes evidence for Anthropic API troubleshooting demand.
append_messages() inside tool runner loop causes infinite loop Fix Anthropic API streaming connection dropping during long-running code execution or skills runs Includes evidence for Anthropic API, Python SDK troubleshooting demand.
RemoteProtocolError: Stream dropped mid-request during long code_execution + skills runs Fix AttributeError NoneType crash when Anthropic streaming SSE events contain malformed data Includes evidence for Anthropic API, Python SDK troubleshooting demand.
AttributeError: 'NoneType' object has no attribute — caused by streaming SSE event errors fix AWS Bedrock anthropic claude haiku on-demand throughput not supported error Includes evidence for Anthropic API troubleshooting demand.
anthropic.claude-3-haiku-20240307-v1:0 with on-demand throughput isn't supported. Retry your request with the ID or ARN of an inference profile Fix Anthropic API cache billing overcharge when server writes past cache_control breakpoint Includes evidence for Anthropic API troubleshooting demand.
Anthropic API cache entries billing 1.25x for tokens that are never read — server writes past explicit cache_control breakpoint Fix Anthropic Batch API returning 404 Not Found intermittently after successfully creating a batch Includes evidence for Anthropic API troubleshooting demand.
Anthropic NotFoundError (404) on Batch API - server-side propagation delay Fix Anthropic Python SDK returning wrong status code 200 for streaming SSE errors like overloaded_error Includes evidence for Anthropic API troubleshooting demand.
Anthropic APIStatusError with status_code=200 for mid-stream SSE overloaded_error Fix Anthropic API 429 rate limit error where billing counter is decremented even when the request fails Includes evidence for Anthropic API troubleshooting demand.
429 {"type":"error","error":{"type":"rate_limit_error","message":"Rate limited"}} Fix Anthropic API rate limit counter not being reversed when requests fail, causing unexpected charges Includes evidence for Anthropic API troubleshooting demand.
Anthropic API Error: 429 rate_limit_error — counter decremented and charged despite failed request Fix Anthropic Vertex AI document URL source rejected with wrong error message Includes evidence for Anthropic API / Vertex AI troubleshooting demand.
Anthropic Vertex SDK document URL sources rejected with incorrect error path: messages.0.content.0.image.source.base64.data: URL sources are not supported Fix Claude Opus 4-7 on Bedrock adding <<<SENTINEL prefix to tool call arguments Includes evidence for Anthropic API / AWS Bedrock troubleshooting demand.
claude-opus-4-7 prepends literal <<<SENTINEL\n to every string value in tool input_json Handle Bedrock streaming errors gracefully in Anthropic SDK Includes evidence for Anthropic API troubleshooting demand.
ValueError: Bad response code, expected 200: {'status_code': 400, ':exception-type': 'internalServerException'} Fix Anthropic SDK AttributeError NoneType on Bedrock streaming rate limit errors Includes evidence for Anthropic API troubleshooting demand.
AttributeError: 'NoneType' object has no attribute 'model' Fix Anthropic Bedrock structured output JSON schema validation error on Converse API Includes evidence for Anthropic API troubleshooting demand.
BedrockException: {"message":"The model returned the following errors: output_config.format: Extra inputs are not permitted"} Fix Anthropic SDK ValueError on Bedrock SSE internalServerException events Includes evidence for Anthropic API troubleshooting demand.
ValueError from anthropic._streaming on Bedrock SSE error events — internalServerException Fix Anthropic SDK RemoteProtocolError streaming drop on long code_execution responses Includes evidence for Anthropic API troubleshooting demand.
httpx.RemoteProtocolError: peer closed connection without sending complete message body (incomplete chunked read) Fix Anthropic SDK AttributeError NoneType on Bedrock streaming rate limit errors Includes evidence for Anthropic API troubleshooting demand.
AttributeError: 'NoneType' object has no attribute 'model' — from Bedrock SSE error event Fix duplicate tool_result blocks error in Anthropic Claude API agent loops Includes evidence for Anthropic API troubleshooting demand.
HTTP 400: each tool_use must have a single result. Found multiple tool_result blocks with id