FirelyTeam/firely-cql-sdk
Jan 2025 – Mar 2026
6 Months active
Languages Used
C#CQLCqlXML
Technical Skills
.NET DevelopmentAPI DevelopmentAPI IntegrationBackend DevelopmentC#Code Refactoring
Andreas Hussong
PROFILE
Andreas Hussong
Over six months, contributed to the FirelyTeam/firely-cql-sdk repository by building and enhancing backend features for CQL-to-ELM workflows, focusing on API development, compiler improvements, and interoperability. Leveraged C#, CQL, and XML to implement demo API scaffolding, extend query filtering, and improve enum handling for FHIR integration. Addressed packaging and parameter derivation bugs, stabilized CI by isolating flaky tests, and expanded unit test coverage to ensure reliability. Introduced generator tool versioning APIs and enhanced documentation with XML comments, supporting maintainability and compatibility. The work emphasized robust testing, code quality, and seamless integration across evolving .NET and FHIR-based environments.
Overall Statistics
Feature vs Bugs
78%Features
Repository Contributions
18Total
Bugs
2
Commits
18
Features
7
Lines of code
1,164
Activity Months6
Your Network
34 peopleWork History
March 2026
6 Commits • 2 Features
Mar 1, 2026March 2026: Feature-driven month delivering Generator Tool Versioning API and compatibility improvements, plus documentation enhancements for Firely CQL SDK. Public API now exposes GeneratorToolVersion and includes new LibrarySetInvoker fields; implemented version checks and minimum/unsupported version tracking to improve compatibility and usability across CQL-to-ELM workflows. Documentation improvements added XML comments for maintainability. No distinct major bugs fixed this month; work focused on stability, interoperability, and developer experience.
6 Commits • 2 Features
Mar 1, 2026March 2026: Feature-driven month delivering Generator Tool Versioning API and compatibility improvements, plus documentation enhancements for Firely CQL SDK. Public API now exposes GeneratorToolVersion and includes new LibrarySetInvoker fields; implemented version checks and minimum/unsupported version tracking to improve compatibility and usability across CQL-to-ELM workflows. Documentation improvements added XML comments for maintainability. No distinct major bugs fixed this month; work focused on stability, interoperability, and developer experience.
March 2026
June 2025
1 Commits
Jun 1, 2025June 2025 (2025-06) for FirelyTeam/firely-cql-sdk focused on CI stability and code quality rather than new user-facing features. The primary action was to address a flaky test in CI by marking the FhirCodeableConcept_EquivalentTo_Code test as ignored, with a reference to GitHub issue #788 for future resolution. This change preserves sprint velocity and prevents deploy-blocking CI failures while the issue is investigated. Commit reference: 1f457192b3132432d08329c56a4f4b24efa4d75f.
June 2025
1 Commits
Jun 1, 2025June 2025 (2025-06) for FirelyTeam/firely-cql-sdk focused on CI stability and code quality rather than new user-facing features. The primary action was to address a flaky test in CI by marking the FhirCodeableConcept_EquivalentTo_Code test as ignored, with a reference to GitHub issue #788 for future resolution. This change preserves sprint velocity and prevents deploy-blocking CI failures while the issue is investigated. Commit reference: 1f457192b3132432d08329c56a4f4b24efa4d75f.
May 2025
2 Commits • 1 Features
May 1, 2025In May 2025, delivered targeted improvements to the Cql library by enhancing enum parsing reliability, expanding test coverage for FHIR enums, and enabling generic enum bindings (Code<EnumType>), with a focused fix in the compiler that eliminates parsing regressions and supports downstream enhancements.
2 Commits • 1 Features
May 1, 2025In May 2025, delivered targeted improvements to the Cql library by enhancing enum parsing reliability, expanding test coverage for FHIR enums, and enabling generic enum bindings (Code<EnumType>), with a focused fix in the compiler that eliminates parsing regressions and supports downstream enhancements.
May 2025
April 2025
4 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for FirelyTeam/firely-cql-sdk focused on strengthening interoperability testing, CQL-to-ELM conversion reliability, and code-based retrieval filtering. Key outcomes include robust tests for equivalence between FHIR CodeableConcept and CQL Code, support for string-based unit definitions in convert statements, and the introduction of code-based retrieval filtering with accompanying unit tests. These changes reduce integration risk, improve data consistency across cross-system workflows, and establish a more reliable testing foundation for the CQL SDK.
April 2025
4 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for FirelyTeam/firely-cql-sdk focused on strengthening interoperability testing, CQL-to-ELM conversion reliability, and code-based retrieval filtering. Key outcomes include robust tests for equivalence between FHIR CodeableConcept and CQL Code, support for string-based unit definitions in convert statements, and the introduction of code-based retrieval filtering with accompanying unit tests. These changes reduce integration risk, improve data consistency across cross-system workflows, and establish a more reliable testing foundation for the CQL SDK.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 summary for FirelyTeam/firely-cql-sdk: Delivered a key enhancement to CqlToElm filtering that strengthens query translation capabilities and paves the way for more expressive data retrieval.
1 Commits • 1 Features
Mar 1, 2025March 2025 summary for FirelyTeam/firely-cql-sdk: Delivered a key enhancement to CqlToElm filtering that strengthens query translation capabilities and paves the way for more expressive data retrieval.
March 2025
January 2025
4 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on delivering a tangible demo API experience, stabilizing critical packaging logic, and modernizing the tech stack. The work enabled a repeatable demo of CQL API execution and laid groundwork for runtime demonstrations with robust parameter handling and modernization.
January 2025
4 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on delivering a tangible demo API experience, stabilizing critical packaging logic, and modernizing the tech stack. The work enabled a repeatable demo of CQL API execution and laid groundwork for runtime demonstrations with robust parameter handling and modernization.
Activity
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Quality Metrics
Correctness90.0%
Maintainability89.0%
Architecture85.6%
Performance83.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
C#CQLCqlXML
Technical Skills
.NET DevelopmentAPI DevelopmentAPI IntegrationBackend DevelopmentC#CQLCode GenerationCode RefactoringCompiler DevelopmentDemo Project SetupDependency InjectionDomain Specific LanguagesDomain-Specific Languages (DSLs)ELM ParsingEnum Handling
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