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Karol Stelmaczonek

PROFILE

Karol Stelmaczonek

Karol Stelmaczonek contributed to the oat-sa/extension-tao-testqti and oat-sa/tao-community repositories by developing and refining features that improved import robustness, export reliability, and dependency management. He implemented QTI 3.0 export support, enhanced metadata validation, and strengthened error handling to reduce mapping issues and import failures. Karol upgraded PHP requirements and core dependencies, ensuring compatibility and security across releases. His work included backend development in PHP, database migration, and frontend improvements using JavaScript and SCSS for UI consistency. Through targeted refactoring, code formatting, and expanded unit testing, he delivered maintainable solutions that improved stability and developer experience throughout the codebase.

Overall Statistics

Feature vs Bugs

77%Features

Repository Contributions

21Total
Bugs
3
Commits
21
Features
10
Lines of code
2,404
Activity Months7

Work History

August 2025

1 Commits • 1 Features

Aug 1, 2025

August 2025 — oat-sa/tao-community: Focused on dependency maintenance to ensure stability and compatibility of the QTI test extension. Upgraded taoQtiTest to 48.20.16.1 and verified CI/build health with no regressions; updated release notes. This work reduces risk and supports ongoing QA and feature work.

July 2025

1 Commits • 1 Features

Jul 1, 2025

July 2025 monthly summary for oat-sa/tao-community focusing on key accomplishments, major fixes, impact, and technology skills demonstrated.

April 2025

1 Commits • 1 Features

Apr 1, 2025

April 2025: Delivered a feature enhancement in oat-sa/tao-core-ui-fe that expands list styling capabilities. Implemented List Styling Options Expansion by extending the listStyles object in liststyler.js to support decimal with period, decimal with parenthesis, lower alpha with period/paren, and upper alpha with period/paren. This was committed in 983931505f374dc230ee319f9810eafc562c2698. No major bug fixes were recorded for this period; focus was on feature capability. Overall impact: broader, consistent list styling across the core UI, improving content authoring flexibility, readability, and design-system alignment; reduces the need for custom CSS and supports varied content formats. Technologies/skills demonstrated: JavaScript module development, UI styling architecture, commit-driven development, codebase grooming, and alignment with design system.

March 2025

5 Commits • 1 Features

Mar 1, 2025

March 2025: QTI extension improvements focused on robustness of response handling and expanded test coverage. Delivered fixes to Qti response handling and repository validation, refactored empty-response blocking into a private method, and enhanced unit tests for QtiItemResponseValidator and QtiItemResponseRepository. Code style cleanups (PHPCS) were applied in test files to align with standards. Resulted in more reliable response validation paths, improved handling of empty responses, and higher confidence in test suite reusability across changes.

February 2025

5 Commits • 2 Features

Feb 1, 2025

February 2025 performance summary: Delivered targeted improvements in two repositories, focusing on robustness, maintainability, and UI consistency. Key features include QTI metadata import robustness and encapsulation improvements in oat-sa/extension-tao-testqti, and enhanced list styling in oat-sa/tao-core-ui-fe with CSS counters and custom suffixes, plus restoration of missing SCSS list styling rules to ensure consistent appearance across the app. These changes reduce downstream errors, improve developer velocity, and provide a more accessible, visually consistent UI across assessments and navigation components.

January 2025

4 Commits • 3 Features

Jan 1, 2025

January 2025 (2025-01) monthly summary for oat-sa/extension-tao-testqti. Delivered core QTI 3.0 export capability, added data integrity validation for QTI test services, and completed code quality refinements to align with PHP standards. These efforts enhance end-to-end export reliability, reduce mapping errors, and improve maintainability across the repository.

December 2024

4 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary focusing on key accomplishments across two repositories: oat-sa/extension-tao-testqti and oat-sa/tao-community. The work delivered strengthens import robustness, aligns runtime dependencies with modern PHP versions, and improves overall stability and security.

Activity

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Quality Metrics

Correctness90.4%
Maintainability88.6%
Architecture85.8%
Performance82.8%
AI Usage21.0%

Skills & Technologies

Programming Languages

JSONJavaScriptPHPSCSS

Technical Skills

API DevelopmentBackend DevelopmentCSSCode FormattingComposerData ValidationDatabase MigrationDependency ManagementFront End DevelopmentFull Stack DevelopmentPHPPHP DevelopmentPHPUnitRefactoringRelease Management

Repositories Contributed To

3 repos

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

oat-sa/extension-tao-testqti

Dec 2024 Mar 2025
4 Months active

Languages Used

PHP

Technical Skills

Backend DevelopmentPHPAPI DevelopmentCode FormattingData ValidationDatabase Migration

oat-sa/tao-community

Dec 2024 Aug 2025
3 Months active

Languages Used

JSONPHP

Technical Skills

ComposerDependency ManagementPHPPHP DevelopmentRelease Management

oat-sa/tao-core-ui-fe

Feb 2025 Apr 2025
2 Months active

Languages Used

SCSSJavaScript

Technical Skills

CSSFront End DevelopmentSCSS

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