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Only decode JSON input buffer in Anthropic Claude streaming #497
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_decode_tool_use was only used when _tool_json_input_buf was found, but we were decoding the entire _content_block after adding _tool_json_input_buf to it. The _content_block overall which could contain non-JSON elements (e.g. {}), causing failures. To fix this, we have removed _decode_tool_use helper function and inlined JSON decoding logic directly into content_block_stop handler in _process_anthropic_claude_chunk, where we only use it to decode _tool_json_input_buf before appending to _content_block.
Patch based on open-telemetry/opentelemetry-python-contrib#3875 with code copied directly from https://github.com/open-telemetry/opentelemetry-python-contrib/blob/v0.54b1/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/extensions/bedrock_utils.py#L289
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srprash
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…rvability#497) _decode_tool_use was only used when _tool_json_input_buf was found, but we were decoding the entire _content_block after adding _tool_json_input_buf to it. The _content_block overall which could contain non-JSON elements (e.g. {}), causing failures. To fix this, we have removed _decode_tool_use helper function and inlined JSON decoding logic directly into content_block_stop handler in _process_anthropic_claude_chunk, where we only use it to decode _tool_json_input_buf before appending to _content_block. Patch based on open-telemetry/opentelemetry-python-contrib#3875 with code copied directly from https://github.com/open-telemetry/opentelemetry-python-contrib/blob/v0.54b1/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/extensions/bedrock_utils.py#L289 Repeated testing in open-telemetry/opentelemetry-python-contrib#3875 to confirm this works By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.
jj22ee
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Oct 22, 2025
…rvability#497) _decode_tool_use was only used when _tool_json_input_buf was found, but we were decoding the entire _content_block after adding _tool_json_input_buf to it. The _content_block overall which could contain non-JSON elements (e.g. {}), causing failures. To fix this, we have removed _decode_tool_use helper function and inlined JSON decoding logic directly into content_block_stop handler in _process_anthropic_claude_chunk, where we only use it to decode _tool_json_input_buf before appending to _content_block. Patch based on open-telemetry/opentelemetry-python-contrib#3875 with code copied directly from https://github.com/open-telemetry/opentelemetry-python-contrib/blob/v0.54b1/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/extensions/bedrock_utils.py#L289 Repeated testing in open-telemetry/opentelemetry-python-contrib#3875 to confirm this works By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.
jj22ee
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Oct 22, 2025
*Issue #, if available:* Cherry-picks: - #477 - #497 *Description of changes:* By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice. --------- Co-authored-by: Thomas Pierce <[email protected]>
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_decode_tool_use was only used when _tool_json_input_buf was found, but we were decoding the entire _content_block after adding _tool_json_input_buf to it. The _content_block overall which could contain non-JSON elements (e.g. {}), causing failures. To fix this, we have removed _decode_tool_use helper function and inlined JSON decoding logic directly into content_block_stop handler in _process_anthropic_claude_chunk, where we only use it to decode _tool_json_input_buf before appending to _content_block.
Patch based on open-telemetry/opentelemetry-python-contrib#3875 with code copied directly from https://github.com/open-telemetry/opentelemetry-python-contrib/blob/v0.54b1/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/extensions/bedrock_utils.py#L289
Repeated testing in open-telemetry/opentelemetry-python-contrib#3875 to confirm this works
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.