Cursor 3.9 Launches Unified Customize Page for Plugins, Skills, MCPs, and Subagents
Cursor
Cursor 3.9 (June 22) consolidates plugins, skills, MCPs, subagents, rules, commands, and hooks into a single Customize page manageable at user, team, or workspace scope. A marketplace leaderboard surfaces the most popular extensions across a team with one-click installation. Plugins now support prebuilt canvases (e.g., Hex Canvas for data visualizations, Atlassian Canvas for live issue tracking). Team marketplaces expanded to import plugin repos from GitLab, BitBucket, and Azure DevOps.
Why it matters
Cursor is converging on a full plugin ecosystem with team-level governance, shifting from a personal IDE toward a managed, shareable developer platform. Prebuilt canvases make plugins first-class interactive surfaces rather than just automation hooks.
Importance: 2/5
Significant Cursor release unifying extension management and introducing team-level governance for plugin ecosystem