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Vercel's open-source fx agent harness added as built-in T3 Code provider

2 articles2 sourcessince Oct 28Last article 58m ago ·

Overview

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Vercel says its open-source agent harness, fx, is now a built-in provider in T3 Code, announced by its developer account on X on October 28, 2026.

According to the post, fx runs on web, desktop, and mobile and works with users' existing models and skills.

Vercel CEO Guillermo Rauch wrote "Theo cooked" on X the same day, linking to Vercel's changelog for the integration. The reports do not describe the terms of the integration beyond these platform and compatibility claims.

Written by AI from the articles below · updated Oct 28, 2:11 PM ET

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Latest developmentOct 28, 2:02 PM ET
Guillermo Rauch says Theo cooked, praising T3 Code's fx integration

Article timeline

The articles in this story. Times are ET.

Oct 28
  1. Guillermo RauchX
    Guillermo Rauch says Theo cooked, praising T3 Code's fx integration

    AIGuillermo Rauch of Vercel writes "Theo cooked" on X. The post links to Vercel's changelog, where fx, Vercel's open-source agent harness, is now a built-in provider in T3 Code. Vercel says fx runs on web, desktop, and mobile and works with users' existing models and skills.

  2. Vercel DevelopersOfficial
    fx agent harness now built into T3 Code as a provider

    AIVercel says its open-source agent harness fx is now a built-in provider in T3 Code. The harness runs on web, desktop, and mobile, and works with users' existing models and skills.

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