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Top 10 GitHub Trending Repositories - Week 20, 2026
The fastest-growing GitHub repositories for May 13-19, 2026 by new stars gained in a single week. AI agent skills frameworks dominated with five of the top 20 repos containing the word skills. The Claude Code ecosystem continues to reshape open-source developer tooling.
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How were these GitHub repositories selected?
These repositories were selected based on new stars gained during May 13-19, 2026. The list ranks repositories by weekly growth in GitHub stars, highlighting which projects gained the most attention from developers during that specific week.
What does 'new stars' mean for GitHub trending?
New stars refer to the number of GitHub users who bookmarked (starred) a repository during the tracked week. A high number of new stars indicates rapid growth in popularity and developer interest.
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Frequently asked questions
What is GitHub Trending and how does it work?
GitHub Trending is a curated list of popular repositories based on a combination of factors like stars, forks, and recent activity, updated daily to highlight interesting open-source projects.
How often is the GitHub Trending page updated?
The GitHub Trending page is updated multiple times per day, with the weekly list (like Week 20) reflecting activity over the past seven days.
What criteria are used to select repositories for the Trending list?
Repositories are selected based on relative star gains, number of forks, contributions, and recent activity such as commits and issues, with language-specific and general tabs available.
Can I view historical trending data for previous weeks like Week 20, 2026?
Yes, you can view past weekly trending lists by using the date filter on the GitHub Trending page or through third-party archives that save historical snapshots.
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