Developed and delivered a per-repository rebase limit mechanism with a top-k strategy for the app-sre/qontract-reconcile repository, enabling more precise control over pipeline concurrency. The solution introduced a configurable concurrency cap and integrated an Unleash-based feature toggle for controlled rollout of the new strategy. Work included refactoring rebase tests to module-level functions with parameterization, enhancing the testing framework, and cleaning up API calls for improved maintainability. Python was used for backend development, with Git and GitLab supporting version control and collaboration. The changes focused on maintainability, extensibility, and accurate concurrency budgeting, addressing edge cases and improving code cleanliness throughout.