lmux-bedrock-shared 0.2.0

Shared AWS Bedrock internals (SigV4 signing, event-stream decoding, Anthropic pricing) for lmux

lmux-bedrock-shared

Shared internals for the two lmux providers that talk to Amazon Bedrock:

• lmux-aws-bedrock — the Converse-API provider (all Bedrock vendors + embeddings).
• lmux-anthropic [bedrock] — the native Anthropic Messages API provider (AnthropicBedrockProvider).

It exists so those two packages don't duplicate the AWS-specific transport code or the Anthropic-on-Bedrock pricing table, while keeping core lmux free of any AWS-specific code.

Contents

Module	Purpose
sigv4.py	sign() — minimal, stdlib-only AWS Signature Version 4 signer (unit-tested for byte-parity against botocore.auth.SigV4Auth).
eventstream.py	EventStreamDecoder / decode_messages — stdlib-only decoder for AWS's binary vnd.amazon.eventstream framing.
pricing.py	ANTHROPIC_PRICING + calculate_bedrock_anthropic_cost() — the Anthropic-on-Bedrock pricing subset, generated by scripts/update_bedrock_pricing.py. Shared so both providers price Claude identically.

sigv4/eventstream are pure stdlib. pricing depends only on lmux (for the pricing types). This package is an internal building block; its API is not intended for direct use outside the lmux Bedrock providers.