James Austin ⠕

building agents @ @replit. 🇦🇺

[James Austin ⠕ @JimmyAustin]

Engineering has different sub-disciplines that sit at various points on the jagged frontier, and a great SWE Bench score doesn’t guarantee a great vibe coding experience. Excited to have had a small part in contributing this back to the community.

[James Austin ⠕ @JimmyAustin]

huh

[James Austin ⠕ @JimmyAustin]

@RhysSullivan Important to differentiate between (args, reason) and (reason, args). With the first, you output the args then posthoc justify them.

[James Austin ⠕ @JimmyAustin]

@stkenned If I drove one to the office @pirroh would shoot me.

[James Austin ⠕ @JimmyAustin]

This car was doomed the moment they decided it had four doors. Even the video starts with someone getting in the back. Who gets excited about getting in the back of a Ferrari?

[James Austin ⠕ @JimmyAustin]

@nickco I can only assume it’ll be a fleet of Model Ys. The thought of only a 2 seat and 20 seat fleet with nothing in between is insane.

[James Austin ⠕ @JimmyAustin]

The optimal amount of stress you put on your colleagues is not a lot.

It is also not zero.

[James Austin ⠕ @JimmyAustin]

@thedogfather @Replit @amasad Hey Nicholas, engineer at Replit here. Can you DM me your details so I can take a closer look at your case?

[James Austin ⠕ @JimmyAustin]

An underestimated aspect of AI’s impact will be a general increase in competence in all parts of the economy. This is not necessarily a good thing.

[StripMallGuy @realEstateTrent]

This was just sent to me by another strip mall owner

[James Austin ⠕ @JimmyAustin]

Update: it thought for 45 minutes before it's first write.

[James Austin ⠕ @JimmyAustin]

Replit in general is an incredibly fast paced environment, but a single problem has resulted in multiple several hour long debates between 5 different staff and staff+ level engineers. Potentially the most divisive technical issue I've even seen in my career.

It's time to whip out the big guns.

[James Austin ⠕ @JimmyAustin]

@madhavsinghal_ `codex --model gpt-5.5-pro-2026-04-23`

[James Austin ⠕ @JimmyAustin]

@witty_genstein Rachael: One must consider the profound implications of the undertaking that we are about to undertake.
James: Please, it’s just one more toggle.

[James Austin ⠕ @JimmyAustin]

Fuck it, we ball

[James Austin ⠕ @JimmyAustin]

I’m a firm believer in “a workman blames his tools, because he chose them”, but it’s rough when you are actually looking at buying them.

[James Austin ⠕ @JimmyAustin]

@amanmathur_ Be the change you want to see in the world

[James Austin ⠕ @JimmyAustin]

@stupidtechtakes @CloakChat Egress is relatively easy to negotiate down if its usage is a core part of your business, I’d be shocked if Discord was paying even a tenth of that cost.