---
title: "Composer 2.5 + Grok Build vs a stuck Swift bug · Daniel Farina"
description: "Agent harnesses, evals, and the layer around the model."
canonical: https://danielfarina.com/posts/composer-2-5-grok-build-vs-a-stuck-swift-bug/
last-updated: "2026-08-30"
---

# Composer 2.5 + Grok Build vs a stuck Swift bug · Daniel Farina

Source: https://danielfarina.com/posts/composer-2-5-grok-build-vs-a-stuck-swift-bug/

[← All writing](https://danielfarina.com/writing)

# Composer 2.5 + Grok Build vs a stuck Swift bug

45 minutes in another model. Three rounds here and the macOS Swift issue was gone.

           Jun 1, 2026   579.0k views on X  [Original post ↗](https://x.com/Daniel_Farinax/status/2061611370064339216)             [View on X ↗](https://x.com/Daniel_Farinax/status/2061611370064339216)

Grok Build + Composer 2.5 so I had an issue with a Swift app on macOS that I was trying to fix with Claude. After about 45 min of going in circles, I decided to give Composer 2.5 with Grok Build a try and the problem was solved in just three rounds!

I’ve been bouncing back and forth between Claude and Composer 2.5 all day, but Composer 2.5 really made my day.

I'm not picking winners I think we need to use all of them and keep on learning.

I was building this btw! Grok controlling my MacOs via voice in seconds

[https://x.com/daniel_farinax/status/2061652009543926132?s=46](https://x.com/daniel_farinax/status/2061652009543926132?s=46)