fix(bedrock): tolerate gateway cost frame in converse stream - #129
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radu-mocanu wants to merge 1 commit into
Open
fix(bedrock): tolerate gateway cost frame in converse stream#129radu-mocanu wants to merge 1 commit into
radu-mocanu wants to merge 1 commit into
Conversation
The LLM Gateway appends a `costMetadata` event-stream frame that AWS does not define, and langchain_aws raises on any stream event it cannot parse, so streamed Bedrock Converse runs died after producing text. Gateway-only frames are now filtered out and the cost payload is folded into the terminal `metadata` event, reaching `response_metadata`.
radu-mocanu
requested review from
DragosBobolea,
cosminacho,
cristipufu,
dragosvelcea,
ionmincu,
ionut-mihalache-uipath and
vldcmp-uipath
as code owners
August 27, 2026 13:05
radu-mocanu
had a problem deploying
to
LLMGW_SETTINGS
August 27, 2026 13:06 — with 
GitHub Actions
Failure
GitHub Actions
Failure
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Summary
UiPathChatBedrockConverseruns no longer fail when the LLM Gateway is configured to report per-call costresponse_metadata(for exampleassociated_dollar_cost), the same place it already lands on non-streamed converse responsesuipath-langchain-client1.18.1)