github/codeql-coding-standards
Oct 2024 – Aug 2025
10 Months active
Languages Used
C++QLYAMLqlCCSVMarkdownc
Technical Skills
C++Code QualityCoding StandardsMISRA CQLSchema Validation
Mike Fairhurst
PROFILE
Mike Fairhurst
Michael Fairhurst developed and maintained static analysis tooling for the github/codeql-coding-standards repository, focusing on enforcing MISRA C, CERT-C, and C++ coding standards. He engineered new CodeQL and QL-based analysis packages for concurrency, floating-point safety, and type system compliance, while optimizing performance through targeted refactors and join order improvements. His work included schema and metadata enhancements, expanded rule coverage, and robust test-driven updates to ensure accuracy and maintainability. Leveraging C, C++, and Python, Michael addressed both feature delivery and bug resolution, demonstrating depth in static analysis, code quality assurance, and standards compliance for safety-critical and high-integrity codebases.
Overall Statistics
Feature vs Bugs
51%Features
Repository Contributions
152Total
Bugs
35
Commits
152
Features
36
Lines of code
29,248
Activity Months10
Your Network
646 people
Work History
August 2025
1 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on delivering performance optimization in the codeql-coding-standards repository. Implemented a targeted refactor for AlertReporting.qll to remove an unnecessary join on the start column and added a private predicate getASubsumedMacroInvocation to avoid joining start column values. This reduced query complexity and improved run-time efficiency.
1 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on delivering performance optimization in the codeql-coding-standards repository. Implemented a targeted refactor for AlertReporting.qll to remove an unnecessary join on the start column and added a private predicate getASubsumedMacroInvocation to avoid joining start column values. This reduced query complexity and improved run-time efficiency.
August 2025
July 2025
1 Commits
Jul 1, 2025Monthly summary for 2025-07 focused on the github/codeql-coding-standards repository. Delivered a targeted CodeQL analysis performance regression fix, addressing performance regressions introduced in CodeQL 2.20.7 by optimizing join operations, refining function declaration comparisons, and improving integer constant macro argument checks. The work improved analysis throughput and reliability, enabling faster and more accurate code-quality feedback for developers using CodeQL standards.
July 2025
1 Commits
Jul 1, 2025Monthly summary for 2025-07 focused on the github/codeql-coding-standards repository. Delivered a targeted CodeQL analysis performance regression fix, addressing performance regressions introduced in CodeQL 2.20.7 by optimizing join operations, refining function declaration comparisons, and improving integer constant macro argument checks. The work improved analysis throughput and reliability, enabling faster and more accurate code-quality feedback for developers using CodeQL standards.
June 2025
6 Commits • 1 Features
Jun 1, 2025June 2025 highlights for repo github/codeql-coding-standards: Delivered targeted fixes and metadata enhancements to improve static analysis quality and maintainability. Key efforts include: (1) Type Analysis Cleanup and LeafType restoration in Compatible.qll to fix a compilation error and preserve correct type equivalence checks; (2) Static Analysis Rule Metadata and Accuracy Improvements, including richer CERT-C metadata and tagging, refinement of EXP-16-C to exclude function-pointer guards, and addition of new QLL classes with corresponding tests. Impact: improved rule precision, reduced false positives, clearer remediation guidance, and more maintainable analysis rules. Technologies demonstrated: CodeQL/QLL, metadata modeling, test updates, and disciplined commit-driven maintenance.
6 Commits • 1 Features
Jun 1, 2025June 2025 highlights for repo github/codeql-coding-standards: Delivered targeted fixes and metadata enhancements to improve static analysis quality and maintainability. Key efforts include: (1) Type Analysis Cleanup and LeafType restoration in Compatible.qll to fix a compilation error and preserve correct type equivalence checks; (2) Static Analysis Rule Metadata and Accuracy Improvements, including richer CERT-C metadata and tagging, refinement of EXP-16-C to exclude function-pointer guards, and addition of new QLL classes with corresponding tests. Impact: improved rule precision, reduced false positives, clearer remediation guidance, and more maintainable analysis rules. Technologies demonstrated: CodeQL/QLL, metadata modeling, test updates, and disciplined commit-driven maintenance.
June 2025
April 2025
21 Commits • 5 Features
Apr 1, 2025April 2025 performance-driven sprint for github/codeql-coding-standards: delivered substantive CERT-C rule and recommendation enhancements, expanded schema, and built performance-focused improvements while strengthening build quality and maintainability. These changes deliver faster, more accurate CERT-C analyses and richer guidance for developers, aligning with business goals of reducing risk and improving compliance posture.
April 2025
21 Commits • 5 Features
Apr 1, 2025April 2025 performance-driven sprint for github/codeql-coding-standards: delivered substantive CERT-C rule and recommendation enhancements, expanded schema, and built performance-focused improvements while strengthening build quality and maintainability. These changes deliver faster, more accurate CERT-C analyses and richer guidance for developers, aligning with business goals of reducing risk and improving compliance posture.
March 2025
42 Commits • 10 Features
Mar 1, 2025March 2025 monthly summary for github/codeql-coding-standards focusing on feature delivery, quality improvements, and compliance. Delivered foundational language tooling, enhanced formatting discipline, and alignment with safety and security standards, while stabilizing CI through metadata and test upgrades.
42 Commits • 10 Features
Mar 1, 2025March 2025 monthly summary for github/codeql-coding-standards focusing on feature delivery, quality improvements, and compliance. Delivered foundational language tooling, enhanced formatting discipline, and alignment with safety and security standards, while stabilizing CI through metadata and test upgrades.
March 2025
February 2025
23 Commits • 11 Features
Feb 1, 2025February 2025 (2025-02) monthly summary for github/codeql-coding-standards. Delivered targeted features, bug fixes, and quality improvements to enhance analysis accuracy, performance, and developer experience. Key business value includes expanded floating-point guard coverage, improved result deduplication with clearer messaging, and stronger formatting/metadata accuracy. CI/CD reliability gains enable faster, more consistent releases and validation in CI pipelines.
February 2025
23 Commits • 11 Features
Feb 1, 2025February 2025 (2025-02) monthly summary for github/codeql-coding-standards. Delivered targeted features, bug fixes, and quality improvements to enhance analysis accuracy, performance, and developer experience. Key business value includes expanded floating-point guard coverage, improved result deduplication with clearer messaging, and stronger formatting/metadata accuracy. CI/CD reliability gains enable faster, more consistent releases and validation in CI pipelines.
January 2025
14 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for github/codeql-coding-standards: Delivered MISRA/C coding standards enhancements and static analysis improvements, including improved thread creation detection, pointer arithmetic analysis, and updated MISRA rule severity and reporting with corresponding test updates. Fixed a correctness bug in CastedToBytePointer analysis by correcting getNode use-use flow to prevent mis-association of subsequent usages. Implemented extensive test updates and fixes to align with rule changes and ensure stable CI results. Results include stronger safety/compliance signals, faster feedback in CI, and more reliable analysis outcomes. Technologies/skills demonstrated include static analysis engineering, MISRA/C/C++ rule enforcement, test-driven development, debugging, and performance-oriented refactors.
14 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for github/codeql-coding-standards: Delivered MISRA/C coding standards enhancements and static analysis improvements, including improved thread creation detection, pointer arithmetic analysis, and updated MISRA rule severity and reporting with corresponding test updates. Fixed a correctness bug in CastedToBytePointer analysis by correcting getNode use-use flow to prevent mis-association of subsequent usages. Implemented extensive test updates and fixes to align with rule changes and ensure stable CI results. Results include stronger safety/compliance signals, faster feedback in CI, and more reliable analysis outcomes. Technologies/skills demonstrated include static analysis engineering, MISRA/C/C++ rule enforcement, test-driven development, debugging, and performance-oriented refactors.
January 2025
December 2024
18 Commits • 3 Features
Dec 1, 2024Monthly summary for 2024-12 (repo: github/codeql-coding-standards). Delivered Concurrency9 static analysis enhancements, MISRA-C 2012 strict unused object query, and broad MISRA-C compliance updates with testing and documentation improvements. Key work includes introducing the Concurrency9 package atop Concurrency8 with new QLL-based MISRA C rules for data race detection, mutex initialization, and thread storage management; implementing a macro-expansion-aware strict unused object query and updating its documentation; and advancing MISRA-C compliance through amendments, test data alignment, query regeneration, and changelog updates. These contributions strengthen static analysis coverage for multithreaded C code, improve accuracy of MISRA-C reporting, and enhance test coverage and documentation for easier auditing. The month included focused work on Concurrency9 and MISRA-C 2012 rule improvements, with a broader set of MISRA-C compliance and testing commits reflecting a sustained effort on quality assurance.
December 2024
18 Commits • 3 Features
Dec 1, 2024Monthly summary for 2024-12 (repo: github/codeql-coding-standards). Delivered Concurrency9 static analysis enhancements, MISRA-C 2012 strict unused object query, and broad MISRA-C compliance updates with testing and documentation improvements. Key work includes introducing the Concurrency9 package atop Concurrency8 with new QLL-based MISRA C rules for data race detection, mutex initialization, and thread storage management; implementing a macro-expansion-aware strict unused object query and updating its documentation; and advancing MISRA-C compliance through amendments, test data alignment, query regeneration, and changelog updates. These contributions strengthen static analysis coverage for multithreaded C code, improve accuracy of MISRA-C reporting, and enhance test coverage and documentation for easier auditing. The month included focused work on Concurrency9 and MISRA-C 2012 rule improvements, with a broader set of MISRA-C compliance and testing commits reflecting a sustained effort on quality assurance.
November 2024
23 Commits • 3 Features
Nov 1, 2024Compact monthly summary for 2024-11 focusing on delivering concurrency packaging improvements, test stability, and quality enhancements across the repository. Emphasizes business value from clearer packaging boundaries, consistent naming, reliable test suites, and cleaner reporting outputs.
23 Commits • 3 Features
Nov 1, 2024Compact monthly summary for 2024-11 focusing on delivering concurrency packaging improvements, test stability, and quality enhancements across the repository. Emphasizes business value from clearer packaging boundaries, consistent naming, reliable test suites, and cleaner reporting outputs.
November 2024
October 2024
3 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for github/codeql-coding-standards: Delivered MISRA-compliant static analysis enhancements and reporting optimizations that strengthen safety-critical checks and enable scalable code quality enforcement across the repository. Implemented MISRA Rule-2-8 to flag unused object definitions (including in macros and __attribute__((unused))) and introduced a shared query library to deduplicate results across macro expansions for faster, cleaner reporting. Added CodeQL checks to detect misuse of infinity and NaN values in C/C++. Resolved a schema reliability issue by correcting the 'strict' MISRA tag to ensure accurate compliance checking. These changes reduce risk, improve compliance visibility, and streamline remediation for safety-critical codebases.
October 2024
3 Commits • 1 Features
Oct 1, 2024October 2024 monthly summary for github/codeql-coding-standards: Delivered MISRA-compliant static analysis enhancements and reporting optimizations that strengthen safety-critical checks and enable scalable code quality enforcement across the repository. Implemented MISRA Rule-2-8 to flag unused object definitions (including in macros and __attribute__((unused))) and introduced a shared query library to deduplicate results across macro expansions for faster, cleaner reporting. Added CodeQL checks to detect misuse of infinity and NaN values in C/C++. Resolved a schema reliability issue by correcting the 'strict' MISRA tag to ensure accurate compliance checking. These changes reduce risk, improve compliance visibility, and streamline remediation for safety-critical codebases.
Activity
Loading activity data...
Quality Metrics
Correctness90.4%
Maintainability90.0%
Architecture86.8%
Performance83.2%
AI Usage20.2%
Skills & Technologies
Programming Languages
CC++CSVJSONMarkdownPythonQLYAMLccpp
Technical Skills
CC LanguageC Language StandardsC Language Standards (MISRA)C ProgrammingC Programming LanguageC StandardsC programmingC programming languageC++C++ ConcurrencyC++ StandardsC/C++C/C++ AnalysisC/C++ Development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline