Skillbox

Skillbox keeps your AI skills in one library and syncs them across Claude Code, Cursor, and Codex. Key features: • Central library for all your agent skills • Import from GitHub, GitLab, local folders, or Explore • Sync skills to Claude Code, Cursor, and Codex • Review diffs between skill versions • Scan each version for prompt injection • Trim noisy command output to extend sessions. Skillbox solves the problem of scattered skills. Instead of tracking copies across folders and tools, you add a skill once and see where it came from, which version is current, and which agents have it active. Its library view shows active, stale, and problem skills, along with token footprint and most-used skills, so you can keep your setup lean. Before a skill enters your workspace, you can review its changes and check for prompt injection risks. Trim shortens verbose terminal output so your agent sessions last longer before hitting context limits. Built for individual developers who work across several coding agents, and for teams that want one shared set of vetted skills everyone uses. Use it to standardize team practices, roll out a release checklist, or keep a project's skills consistent across tools.