
Worked on the awslabs/mcp repository to enhance NeptuneAnalytics by introducing an optional endpoint_url parameter, enabling support for local and custom endpoints and aligning its behavior with NeptuneDatabase. Utilized Python and boto3 to implement robust URI parsing across three formats, ensuring backward compatibility when the parameter is unset. Addressed host-prefix injection issues for custom endpoints by disabling inject_host_prefix, preventing hostname mismatches. Developed comprehensive unit tests to cover all URI forms, maintained a healthy test suite with over 70 passing tests, and updated linting and documentation. This work improved local development workflows, increased test reliability, and strengthened code ownership alignment within the project.
Monthly Summary — April 2026 (awslabs/mcp) 1) Key features delivered - NeptuneAnalytics: Added optional endpoint_url parameter to support local/custom endpoints, enabling parity with NeptuneDatabase and easing local development workflows. Implemented robust URI parsing to support three URI forms and preserved existing behavior when endpoint_url is not set. 2) Major bugs fixed - Fixed endpoint-host construction issues for custom endpoints by disabling inject_host_prefix when endpoint_url is used, preventing unintended host prefixing and hostname mismatches. Added unit tests covering all URI forms; overall test suite remained healthy (70-71 tests passing). 3) Overall impact and accomplishments - Accelerated local development and testing by enabling NA standalone container workflows with custom endpoints., improved consistency across NeptuneAnalytics and NeptuneDatabase, and increased test coverage and reliability with linting and test plan updates. 4) Technologies/skills demonstrated - Python, boto3 client integration, advanced URI parsing, unit testing and test-driven development, linting (ruff), CI/test reliability, documentation/test plan updates, and code ownership alignment.
Monthly Summary — April 2026 (awslabs/mcp) 1) Key features delivered - NeptuneAnalytics: Added optional endpoint_url parameter to support local/custom endpoints, enabling parity with NeptuneDatabase and easing local development workflows. Implemented robust URI parsing to support three URI forms and preserved existing behavior when endpoint_url is not set. 2) Major bugs fixed - Fixed endpoint-host construction issues for custom endpoints by disabling inject_host_prefix when endpoint_url is used, preventing unintended host prefixing and hostname mismatches. Added unit tests covering all URI forms; overall test suite remained healthy (70-71 tests passing). 3) Overall impact and accomplishments - Accelerated local development and testing by enabling NA standalone container workflows with custom endpoints., improved consistency across NeptuneAnalytics and NeptuneDatabase, and increased test coverage and reliability with linting and test plan updates. 4) Technologies/skills demonstrated - Python, boto3 client integration, advanced URI parsing, unit testing and test-driven development, linting (ruff), CI/test reliability, documentation/test plan updates, and code ownership alignment.

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