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Vitalii Shtykhno

PROFILE

Vitalii Shtykhno

Over a two-month period, Kilatib focused on backend development for the oat-sa/extension-tao-testqti repository, delivering features that improved late submission handling and data integrity during test timeouts. He implemented conditional saving of item responses, ensuring that only valid data persisted when late submissions were allowed, and introduced robust checks to prevent data corruption from invalid or empty responses. Kilatib also added a feature flag for permanent late submissions, updated documentation, and upgraded dependencies in oat-sa/tao-community. His work, primarily in PHP and JSON, emphasized code cleanup, refactoring, and comprehensive unit testing to enhance reliability and maintainability across repositories.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

7Total
Bugs
0
Commits
7
Features
3
Lines of code
221
Activity Months2

Work History

September 2025

6 Commits • 2 Features

Sep 1, 2025

September 2025 highlights include delivering a feature-flag driven enhancement for permanent late submissions in the TestQTI extension, stabilizing late-saving behavior on timeouts, and upgrading the TestQTI dependency to v48.21.3. The work improved submission reliability during timeout events, reduced risk of unintended data loss, and strengthened cross-repo alignment between extension-tao-testqti and tao-community. Notable fixes included correcting the validation method and removing an unnecessary type cast, with tests updated to exercise the feature flag. Documentation updates accompanied code changes, and test/tooling adjustments were completed to support ongoing validation and deployment.

July 2025

1 Commits • 1 Features

Jul 1, 2025

In July 2025, focused on reliability and data integrity for the oat-sa/extension-tao-testqti extension by delivering Late Submission Handling in the Timeout Service. The feature conditionally saves item responses only when late submissions are allowed and adds robust handling for invalid or empty responses during timeouts, ensuring the tools state is saved and the runner service check executes. This work reduces the risk of data corruption during timeouts and improves end-to-end scoring reliability. Key commits and outcomes include the fix commit addressing timeout handling: 20169e7f9ef2f671755c3f19c4bf98ef88c312fd.

Activity

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Quality Metrics

Correctness92.8%
Maintainability91.4%
Architecture88.6%
Performance88.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

JSONMarkdownPHP

Technical Skills

Backend DevelopmentCode CleanupDependency ManagementDocumentationFeature ImplementationPHPRefactoringTestingUnit Testing

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

oat-sa/extension-tao-testqti

Jul 2025 Sep 2025
2 Months active

Languages Used

PHPMarkdown

Technical Skills

Backend DevelopmentCode CleanupDocumentationFeature ImplementationPHPRefactoring

oat-sa/tao-community

Sep 2025 Sep 2025
1 Month active

Languages Used

JSON

Technical Skills

Dependency Management

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