statamic/cms
Dec 2024 – Feb 2026
9 Months active
Languages Used
PHPPHPUnitJavaScriptVue
Technical Skills
Backend DevelopmentTemplating EnginesTestingLoggingPHPBlade Templating
John Koster
PROFILE
John Koster
John contributed to the statamic/cms repository by engineering features and fixes that enhanced templating reliability, extensibility, and security. He developed recursive navigation rendering and Blade component integration, enabling more flexible and maintainable templates. His work included refining the Antlers and Blade templating engines, improving directive parsing, and implementing robust error handling and logging. Using PHP, Vue.js, and PHPUnit, John addressed edge cases such as shorthand array parsing and conditional rendering, while also strengthening test coverage to prevent regressions. His technical approach emphasized backward compatibility, maintainability, and editor usability, resulting in a more stable and developer-friendly CMS platform.
Overall Statistics
Feature vs Bugs
57%Features
Repository Contributions
18Total
Bugs
6
Commits
18
Features
8
Lines of code
14,594
Activity Months9
Your Network
77 peopleWork History
February 2026
5 Commits • 3 Features
Feb 1, 2026February 2026 — Delivered core enhancements to the Antlers templating engine, improved widget UX, and tightened security, alongside URL normalization fixes across statamic/cms. These changes enhance template reliability, editor productivity, and site consistency while reducing exposure to risky content.
5 Commits • 3 Features
Feb 1, 2026February 2026 — Delivered core enhancements to the Antlers templating engine, improved widget UX, and tightened security, alongside URL normalization fixes across statamic/cms. These changes enhance template reliability, editor productivity, and site consistency while reducing exposure to risky content.
February 2026
January 2026
1 Commits
Jan 1, 2026Concise monthly summary for 2026-01 focused on Antlers Blade rendering reliability in statamic/cms. The primary accomplishment this month was a critical bug fix to remove stray parentheses in Antlers Blade component output by correcting the DocumentParser current index increment, accompanied by targeted regression tests to prevent similar regressions. This work improves rendering reliability, reduces user-visible formatting issues, and strengthens test coverage.
January 2026
1 Commits
Jan 1, 2026Concise monthly summary for 2026-01 focused on Antlers Blade rendering reliability in statamic/cms. The primary accomplishment this month was a critical bug fix to remove stray parentheses in Antlers Blade component output by correcting the DocumentParser current index increment, accompanied by targeted regression tests to prevent similar regressions. This work improves rendering reliability, reduces user-visible formatting issues, and strengthens test coverage.
October 2025
1 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 focusing on key accomplishments and technical achievements for the statamic/cms repository, emphasizing delivered features, bug fixes, and business impact.
1 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 focusing on key accomplishments and technical achievements for the statamic/cms repository, emphasizing delivered features, bug fixes, and business impact.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary focusing on strengthening the Antlers templating engine reliability and interoperability with Blade in statamic/cms. Deliveries center on a Blade Components integration and a bug fix for unless condition evaluation with variables, combined with added tests. These changes improve template stability, enable component-based rendering, and reduce debugging time for templating edge cases across teams.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary focusing on strengthening the Antlers templating engine reliability and interoperability with Blade in statamic/cms. Deliveries center on a Blade Components integration and a bug fix for unless condition evaluation with variables, combined with added tests. These changes improve template stability, enable component-based rendering, and reduce debugging time for templating edge cases across teams.
August 2025
1 Commits
Aug 1, 20252025-08 Monthly Summary for statamic/cms: Stabilized the Antlers templating engine by fixing a parser error with shorthand array syntax and expanding test coverage. The change ensures correct parsing when shorthand arrays are used in method calls or property access, reducing template runtime failures and improving developer productivity. Commit reference: f640489584e1b0aeed323e4b77e79f7caccc0bfe ("[5.x] Antlers: Corrects parser error with shorthand array syntax (#12031)").
1 Commits
Aug 1, 20252025-08 Monthly Summary for statamic/cms: Stabilized the Antlers templating engine by fixing a parser error with shorthand array syntax and expanding test coverage. The change ensures correct parsing when shorthand arrays are used in method calls or property access, reducing template runtime failures and improving developer productivity. Commit reference: f640489584e1b0aeed323e4b77e79f7caccc0bfe ("[5.x] Antlers: Corrects parser error with shorthand array syntax (#12031)").
August 2025
July 2025
1 Commits • 1 Features
Jul 1, 2025Month: 2025-07 Brief: Delivered extensible Markdown parsing in statamic/cms, enabling pluggable custom parsers and closure-based extensions. Implemented tests to validate parser usage. Key features delivered: - Extend Markdown Parser with pluggable custom parsers: allows custom classes to extend the Markdown Parser by instantiating via static context, enabling custom parsers defined via closures. Included tests validating correct usage and application to markdown values. Major bugs fixed: - None reported this month; focus on feature delivery and test coverage to ensure reliability. Overall impact and accomplishments: - Business value: Enables client-specific parser customization and future extension points, improving flexibility and time-to-market for documentation and content features. Technical: backward-compatible API, robust test suite, and clear commit referencing (#11946). Technologies/skills demonstrated: - PHP, OOP, static bindings, closures, unit testing, and test-driven development; repository: statamic/cms; commit: f585abd519083f07c9115c68e044cb4394f9e12a
July 2025
1 Commits • 1 Features
Jul 1, 2025Month: 2025-07 Brief: Delivered extensible Markdown parsing in statamic/cms, enabling pluggable custom parsers and closure-based extensions. Implemented tests to validate parser usage. Key features delivered: - Extend Markdown Parser with pluggable custom parsers: allows custom classes to extend the Markdown Parser by instantiating via static context, enabling custom parsers defined via closures. Included tests validating correct usage and application to markdown values. Major bugs fixed: - None reported this month; focus on feature delivery and test coverage to ensure reliability. Overall impact and accomplishments: - Business value: Enables client-specific parser customization and future extension points, improving flexibility and time-to-market for documentation and content features. Technical: backward-compatible API, robust test suite, and clear commit referencing (#11946). Technologies/skills demonstrated: - PHP, OOP, static bindings, closures, unit testing, and test-driven development; repository: statamic/cms; commit: f585abd519083f07c9115c68e044cb4394f9e12a
June 2025
3 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for statamic/cms focused on navigation rendering improvements and data augmentation stability. Delivered a feature: Blade navigation tag compiler now supports recursive navigation views via a callback mechanism, with extensive tests around imported classes, functions, and PHP code inside navigation tags. Addressed and fixed issues in the Blade nav tag compiler to ensure correct rendering. Investigated data augmentation recursion guard to prevent infinite augmentation loops; the guard was introduced but subsequently rolled back due to stability concerns, with the revert committed to preserve existing behavior. Overall impact includes improved navigation reliability and test coverage, enabling safer future recursive enhancements, while maintaining product stability.
3 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for statamic/cms focused on navigation rendering improvements and data augmentation stability. Delivered a feature: Blade navigation tag compiler now supports recursive navigation views via a callback mechanism, with extensive tests around imported classes, functions, and PHP code inside navigation tags. Addressed and fixed issues in the Blade nav tag compiler to ensure correct rendering. Investigated data augmentation recursion guard to prevent infinite augmentation loops; the guard was introduced but subsequently rolled back due to stability concerns, with the revert committed to preserve existing behavior. Overall impact includes improved navigation reliability and test coverage, enabling safer future recursive enhancements, while maintaining product stability.
June 2025
May 2025
3 Commits
May 1, 2025May 2025 — statamic/cms focused on stability, correctness, and debugging quality. Key changes delivered address rendering correctness for nested noparse blocks within partials, enhanced error logging for Antlers PHP nodes inside user content, and stricter callable validation in routing. These fixes reduce user-visible edge cases and improve developer experience in content rendering and routing. Key features delivered: - Stability improvements: Rendering correctness for nested noparse blocks within partials (shouldCacheRenderNodes) to prevent misparsing. Commit: a3e543a08304a45e3bdfcbfa374be1def59ac432. Major bugs fixed: - Rendering robustness: Corrects issue with nested noparse and partials. - Observability: Improves Antlers error logging with PHP nodes for better debugging. Commit: 90d0ff46602976f8bc4c7872e053efacd1798d1a. - Robustness: Route::statamic now checks for Closure instances instead of is_callable for callables, reducing routing edge-cases. Commit: 7be04816733ba3e7b5efd3a661972ace784af972. Overall impact and accomplishments: - Higher rendering stability and routing reliability lead to fewer defects and faster issue resolution in production. Improved debugging visibility translates to quicker troubleshooting for content authors and developers. Technologies/skills demonstrated: - PHP, Antlers templating, error logging improvements, routing logic hardening, and proactive debugging/release hygiene.
May 2025
3 Commits
May 1, 2025May 2025 — statamic/cms focused on stability, correctness, and debugging quality. Key changes delivered address rendering correctness for nested noparse blocks within partials, enhanced error logging for Antlers PHP nodes inside user content, and stricter callable validation in routing. These fixes reduce user-visible edge cases and improve developer experience in content rendering and routing. Key features delivered: - Stability improvements: Rendering correctness for nested noparse blocks within partials (shouldCacheRenderNodes) to prevent misparsing. Commit: a3e543a08304a45e3bdfcbfa374be1def59ac432. Major bugs fixed: - Rendering robustness: Corrects issue with nested noparse and partials. - Observability: Improves Antlers error logging with PHP nodes for better debugging. Commit: 90d0ff46602976f8bc4c7872e053efacd1798d1a. - Robustness: Route::statamic now checks for Closure instances instead of is_callable for callables, reducing routing edge-cases. Commit: 7be04816733ba3e7b5efd3a661972ace784af972. Overall impact and accomplishments: - Higher rendering stability and routing reliability lead to fewer defects and faster issue resolution in production. Improved debugging visibility translates to quicker troubleshooting for content authors and developers. Technologies/skills demonstrated: - PHP, Antlers templating, error logging improvements, routing logic hardening, and proactive debugging/release hygiene.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for statamic/cms. Focused on feature delivery and test coverage in the Antlers templating engine. Key feature delivered: no_results flag for automatic array variables, enabling conditional rendering of 'no results' messages when templates reference empty arrays. The change includes a dedicated test to verify the functionality.
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for statamic/cms. Focused on feature delivery and test coverage in the Antlers templating engine. Key feature delivered: no_results flag for automatic array variables, enabling conditional rendering of 'no results' messages when templates reference empty arrays. The change includes a dedicated test to verify the functionality.
December 2024
Activity
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Quality Metrics
Correctness97.8%
Maintainability93.4%
Architecture90.0%
Performance91.2%
AI Usage23.4%
Skills & Technologies
Programming Languages
JavaScriptPHPPHPUnitVue
Technical Skills
AntlersBackend DevelopmentBladeBlade TemplatingCMS DevelopmentData AugmentationException HandlingLoggingObject-Oriented ProgrammingPHPPHP DevelopmentTemplating EnginesTestingUnit TestingVue.js
Repositories Contributed To
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