fx coding agent

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Every quote

The 38 most detailed of 40 comments. Each links to the original.

1. a tiny, embeddable agent harness and infrastructure component that also happens to have a good CLI

   Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

2. fx is a coding agent harness and CLI written in Zig, optimized for research and embeddability

   Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

3. UX-wise it's quite minimalistic, that seems one of their differentiators. And I'm liking it!

   Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

4. I'm using it for my blog and like it a lot since I can quickly use it to jot down notes

   Recommends · Feb 2026 · in “A simple web we own”

5. This has some nice ideas like indexing (aider like repo map) built in

   Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

6. aiming to be embeddable into other projects seems rather notable

   Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

7. it comes with a in-built tui viewer that supports vi-keybindings

   Recommends · Oct 2026 · in “Polars 2.0”

8. It's running for a few months now and works very well for me.

   Recommends · Nov 2025 · in “No Socials November”

9. The demo on the page feels very intuitive to me!

   Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

10. I like it from trying it quickly

    Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

11. Is this going to be another Vercel Labs slop project that they will abandon like the others since this is super experimental?

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

12. Just minuscule or non-negligible implementation details and I'm afraid it is sadly yet another experimental slop project.

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

13. with Vercel as the only inference provider option, this project is useless

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

14. requirement of a credit card (Vercel AI Gateway) and lack of transparency

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

15. the binary was 144MB, after stripping it was 44MB. No where close to 6MB?

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

16. I'd expect a truly tiny native agent to be around 200-300 KB max.

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

17. I see no other way than to sign up for a vercel account

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

18. I don't want to use Vercel software so will pass

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

19. I see the Vercel logo, and I am instantly out.

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

20. fx is currently Vercel AI Gateway only

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

21. I was excited about this until I found

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

22. DI frameworks, when they're not gigantic monstrosities like in Java, are pretty great.

    Recommends · Nov 2025 · in “Revisiting Interface Segregation in Go”

23. fx + fxtest has helped us do integration tests in a fairly large code base

    Recommends · Mar 2026

24. It seems to be like Pi but will more things out of the box like MCP.

    Recommends · Sep 2026 · in “Strands Harness”

25. hax is very interesting as a Pi replacement

    Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

26. I'm running multiple blogs via a Rust CMS

    Recommends · Apr 2026 · in “The CMS is dead. Long live the CMS”

27. That itself is a huge win for fx.

    Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

28. not that polished or fast imo

    Mixed · Aug 2026 · in “fx :Tiny, open, native coding agent.”

29. https://fx.sh is also cool.

    Recommends · Oct 2026 · in “Ask HN: What models and harnesses are you using that are not Claude or Codex?”

30. i like fx the json viewer

    Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

31. finally some good sofware

    Recommends · Aug 2026 · in “fx :Tiny, open, native coding agent.”

32. convenient runtime tools (like Uber Fx) rely heavily on reflection, which sacrifices strict compile-time safety

    Criticizes · Mar 2026 · in “Show HN: Flora – Compile-time Dependency Injection for Go without reflection”

33. the only interesting thing about this project is that it is written in Zig

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

34. This has 26 tools and a tool for every single file operation

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

35. All code agents look the same and this one is no different.

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

36. it can do everything Claude code can do

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

37. the onboarding is thoroughly broken

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”

38. it's wayyyy too many tools

    Criticizes · Aug 2026 · in “fx :Tiny, open, native coding agent.”