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fx in Traces

Aug 20, 2026

fx in Traces

Traces CLI v0.6.20 adds support for fx. fx is the new open-source coding agent from Vercel Labs.

Vercel Labs built fx in Zig. The team designed fx for speed. The team also designed fx for research and for embedding in larger systems.

With this update, you can now:

  • Share fx sessions. Choose public access, private access, or a direct link.
  • Resume fx sessions. Continue your own session, or resume a session from your team.
  • Connect fx sessions to git commits. Run traces setup to link a session to a commit.

Get started

Update your CLI to v0.6.20. Then run traces setup to connect your fx sessions to your commits.