Fraunhofer-AISEC/cpg
Nov 2024 – Dec 2025
11 Months active
Languages Used
KotlinMarkdownGradleJavaPythonTypeScript
Technical Skills
Code RefactoringCompiler DesignDocumentationKotlin DevelopmentDSL DevelopmentStatic Analysis
Konrad Weiss
PROFILE
Konrad Weiss
Konrad Weiss contributed to the Fraunhofer-AISEC/cpg repository by engineering core enhancements to the Code Property Graph framework, focusing on control flow, data flow, and assumption tracking. He refactored graph traversal and evaluation logic using Kotlin and Java, improving stability, debuggability, and maintainability. His work included modernizing dispatcher logic, expanding Python translation support, and strengthening security through dependency management. Konrad addressed AST duplication, namespace handling, and comment-to-node matching, ensuring accurate static analysis across complex codebases. He also improved onboarding and governance by updating documentation and code ownership structures. His contributions demonstrated depth in backend development, static analysis, and graph data structures.
Overall Statistics
Feature vs Bugs
65%Features
Repository Contributions
27Total
Bugs
7
Commits
27
Features
13
Lines of code
3,754
Activity Months11
Your Network
13 peopleSame Organization
@aisec.fraunhofer.de6
Work History
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for Fraunhofer-AISEC/cpg focused on delivering precision in the Fluent DSL and AST node positioning. Key outcomes include improved accuracy for node location inference and expanded test coverage to ensure location integrity across graph examples.
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for Fraunhofer-AISEC/cpg focused on delivering precision in the Fluent DSL and AST node positioning. Key outcomes include improved accuracy for node location inference and expanded test coverage to ensure location integrity across graph examples.
December 2025
October 2025
1 Commits
Oct 1, 2025October 2025 monthly summary for Fraunhofer-AISEC/cpg. Focused on strengthening the reliability of comment-to-node matching in the face of nested namespaces and missing location data, delivering a robust bug fix and improved test coverage. The work enhances the accuracy of the Code Property Graph annotations, enabling more dependable code intelligence capabilities for developers and downstream tooling.
October 2025
1 Commits
Oct 1, 2025October 2025 monthly summary for Fraunhofer-AISEC/cpg. Focused on strengthening the reliability of comment-to-node matching in the face of nested namespaces and missing location data, delivering a robust bug fix and improved test coverage. The work enhances the accuracy of the Code Property Graph annotations, enabling more dependable code intelligence capabilities for developers and downstream tooling.
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for Fraunhofer-AISEC/cpg. Focused on governance and ownership realignment to improve maintainability and onboarding, with a single governance feature delivering clearer ownership mapping and accountability across semantic passes and language modules.
1 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for Fraunhofer-AISEC/cpg. Focused on governance and ownership realignment to improve maintainability and onboarding, with a single governance feature delivering clearer ownership mapping and accountability across semantic passes and language modules.
September 2025
July 2025
1 Commits
Jul 1, 2025July 2025 monthly summary for Fraunhofer-AISEC/cpg focused on stabilizing statement modeling within loops and label constructs to improve the reliability of the Code Property Graph generation. Delivered a bug fix to standardize handling of empty statements by ensuring the statements getter is invoked consistently; added backing fields for statement edges to support initializers; refactored Fluent.kt to correctly attach newly created statements to their parent structures; and implemented regression tests validating statement holders in forEach, for, and label statements. The work reduces edge-case inconsistencies, enhances graph correctness, and improves maintainability of the statement model across the codebase. Commit highlights include f223fafa584346f4ae89c1339568129765a24c39 (Fixing inconsistency with empty `statements` when `statementEdge` is a getter (#2390)).
July 2025
1 Commits
Jul 1, 2025July 2025 monthly summary for Fraunhofer-AISEC/cpg focused on stabilizing statement modeling within loops and label constructs to improve the reliability of the Code Property Graph generation. Delivered a bug fix to standardize handling of empty statements by ensuring the statements getter is invoked consistently; added backing fields for statement edges to support initializers; refactored Fluent.kt to correctly attach newly created statements to their parent structures; and implemented regression tests validating statement holders in forEach, for, and label statements. The work reduces edge-case inconsistencies, enhances graph correctness, and improves maintainability of the statement model across the codebase. Commit highlights include f223fafa584346f4ae89c1339568129765a24c39 (Fixing inconsistency with empty `statements` when `statementEdge` is a getter (#2390)).
June 2025
3 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Fraunhofer-AISEC/cpg focusing on delivering business value through robust query processing, stability improvements, and expanded test coverage. Key outcomes include: improved query decision logic via lazy evaluation, enhanced assumption collection across complex query structures, and a hardened export pipeline preventing infinite loops. These changes reduce data export risk, improve result accuracy, and accelerate decision paths for large graphs.
3 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Fraunhofer-AISEC/cpg focusing on delivering business value through robust query processing, stability improvements, and expanded test coverage. Key outcomes include: improved query decision logic via lazy evaluation, enhanced assumption collection across complex query structures, and a hardened export pipeline preventing infinite loops. These changes reduce data export risk, improve result accuracy, and accelerate decision paths for large graphs.
June 2025
May 2025
4 Commits • 2 Features
May 1, 2025In May 2025, Fraunhofer-AISEC/cpg focused on robust propagation and tracking of assumptions across code graphs, delivering two major feature sets that enhance data integrity, traceability, and maintainability.
May 2025
4 Commits • 2 Features
May 1, 2025In May 2025, Fraunhofer-AISEC/cpg focused on robust propagation and tracking of assumptions across code graphs, delivering two major feature sets that enhance data integrity, traceability, and maintainability.
April 2025
5 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary focused on delivering higher accuracy and broader coverage in the Code Property Graph (CPG) framework for Fraunhofer-AISEC/cpg, with concrete commits and business impact. Key features delivered include enhancements to CPG Control Flow and Data Flow Analysis, and introduction of Assumptions support and inference; plus a targeted Translation Unit refactor fixing INI frontend namespace handling. Major bug fixes address AST duplication and namespace handling in the INI frontend, improving reliability of the static analysis pipeline.
5 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary focused on delivering higher accuracy and broader coverage in the Code Property Graph (CPG) framework for Fraunhofer-AISEC/cpg, with concrete commits and business impact. Key features delivered include enhancements to CPG Control Flow and Data Flow Analysis, and introduction of Assumptions support and inference; plus a targeted Translation Unit refactor fixing INI frontend namespace handling. Major bug fixes address AST duplication and namespace handling in the INI frontend, improving reliability of the static analysis pipeline.
April 2025
March 2025
4 Commits • 1 Features
Mar 1, 2025March 2025 (Fraunhofer-AISEC/cpg) focused on dependency handling, security hardening, and graph evaluation correctness. Delivered include-path support for external dependencies, security upgrades to the Neo4j driver, and a refactor of the Evaluation Order Graph (EOG) pass to ensure proper connectivity across namespaces and top-level code, complemented by unit tests.
March 2025
4 Commits • 1 Features
Mar 1, 2025March 2025 (Fraunhofer-AISEC/cpg) focused on dependency handling, security hardening, and graph evaluation correctness. Delivered include-path support for external dependencies, security upgrades to the Neo4j driver, and a refactor of the Evaluation Order Graph (EOG) pass to ensure proper connectivity across namespaces and top-level code, complemented by unit tests.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for Fraunhofer-AISEC/cpg. Focused on hardening core stability and expanding graph representation with language-aware capabilities to strengthen security, reliability, and analysis coverage. Delivered three core outcomes aligning with business value: security/compliance improvements, graph representation enhancements for overlay-aware analysis, and on-demand Python translation to improve cross-language project analysis.
4 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for Fraunhofer-AISEC/cpg. Focused on hardening core stability and expanding graph representation with language-aware capabilities to strengthen security, reliability, and analysis coverage. Delivered three core outcomes aligning with business value: security/compliance improvements, graph representation enhancements for overlay-aware analysis, and on-demand Python translation to improve cross-language project analysis.
February 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for Fraunhofer-AISEC/cpg: Delivered structured forStmt support in Fluent DSL by refactoring the forStmt component to separate initializer, condition, iteration, and body into distinct blocks, improving clarity and maintainability. Updated tests to reflect the new structure, ensuring correctness and reducing regression risk. Completed a targeted bug fix for end-of-loop (eog) handling in for loops to stabilize test suite.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for Fraunhofer-AISEC/cpg: Delivered structured forStmt support in Fluent DSL by refactoring the forStmt component to separate initializer, condition, iteration, and body into distinct blocks, improving clarity and maintainability. Updated tests to reflect the new structure, ensuring correctness and reducing regression risk. Completed a targeted bug fix for end-of-loop (eog) handling in for loops to stabilize test suite.
November 2024
2 Commits • 2 Features
Nov 1, 2024Concise monthly summary for Fraunhofer-AISEC/cpg (Nov 2024): Key features delivered: - Internal Refactor: EOG Pass Dispatcher Modernization: Replaced a map-based dispatcher with a Kotlin when expression to improve debuggability and simplify node-type handling; removed obsolete map entries. Commit afad8776e315c4531715e659dfac6b2786cdd872. Result: clearer debugging, easier maintenance of the Evaluation Order Graph pass. - Documentation Update: CPG Design Principles and Query Examples: Added design_principles.md and query_examples.md by extracting content from existing wiki pages; updated mkdocs.yaml to include the new pages in navigation. Commit 2847342d60bf50b00ef6faa5bd2574f3bc108979. Result: improved onboarding, self-serve design guidelines, and query examples for developers. Major bugs fixed: - No major bug fixes documented for this period in the provided data. Overall impact and accomplishments: - Increased code quality and maintainability of core CPG pass logic, with faster debugging and simpler node-type handling. - Strengthened developer onboarding and knowledge sharing through expanded design principles and query examples documentation. - Improved alignment with design principles and better discoverability of examples, accelerating future feature work and maintenance. Technologies/skills demonstrated: - Kotlin language features (when expression) for cleaner dispatcher logic. - Refactoring disciplined around stability and debuggability. - Documentation and mkdocs configuration to improve developer experience. - Version control discipline with concise, traceable commits.
2 Commits • 2 Features
Nov 1, 2024Concise monthly summary for Fraunhofer-AISEC/cpg (Nov 2024): Key features delivered: - Internal Refactor: EOG Pass Dispatcher Modernization: Replaced a map-based dispatcher with a Kotlin when expression to improve debuggability and simplify node-type handling; removed obsolete map entries. Commit afad8776e315c4531715e659dfac6b2786cdd872. Result: clearer debugging, easier maintenance of the Evaluation Order Graph pass. - Documentation Update: CPG Design Principles and Query Examples: Added design_principles.md and query_examples.md by extracting content from existing wiki pages; updated mkdocs.yaml to include the new pages in navigation. Commit 2847342d60bf50b00ef6faa5bd2574f3bc108979. Result: improved onboarding, self-serve design guidelines, and query examples for developers. Major bugs fixed: - No major bug fixes documented for this period in the provided data. Overall impact and accomplishments: - Increased code quality and maintainability of core CPG pass logic, with faster debugging and simpler node-type handling. - Strengthened developer onboarding and knowledge sharing through expanded design principles and query examples documentation. - Improved alignment with design principles and better discoverability of examples, accelerating future feature work and maintenance. Technologies/skills demonstrated: - Kotlin language features (when expression) for cleaner dispatcher logic. - Refactoring disciplined around stability and debuggability. - Documentation and mkdocs configuration to improve developer experience. - Version control discipline with concise, traceable commits.
November 2024
Activity
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Quality Metrics
Correctness88.2%
Maintainability85.2%
Architecture86.4%
Performance77.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
GradleJavaKotlinMarkdownPythonTypeScript
Technical Skills
AST ManipulationAST manipulationBackend DevelopmentBug FixingBuild ConfigurationBuild ToolsCode AnalysisCode GenerationCode Ownership ManagementCode ParsingCode Property Graph (CPG)Code RefactoringCompiler DesignConfiguration ManagementControl Flow Analysis
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