Worked on backend reliability improvements for the sst/opencode repository, focusing on message handling consistency between Bedrock and Anthropic providers. Addressed a bug where Bedrock failed to filter out empty content blocks, which could lead to incorrect message processing. Implemented a targeted fix in TypeScript to ensure empty blocks are removed, aligning Bedrock’s behavior with Anthropic and reducing the risk of workflow errors. Enhanced test coverage by adding automated tests that validate correct handling of messages with empty content, supporting ongoing reliability. Demonstrated backend development and testing skills while contributing to provider parity and improved message integrity across the codebase.