4 ms·

I've sadly had to back out of using jj after leaning into LLM coding assistance, as, even with an extremely well-written jj guide in its context (and literally

I've sadly had to back out of using jj after leaning into LLM coding assistance, as, even with an extremely well-written jj guide in its context (and literally blocking the use of git), it never failed to screw things up more than if I was just using git (I call this an "LLMpedance mismatch" problem) If LLM coding assistance continues to increase, it's going to be a rather large speed bump to cross One of the biggest problems is actually unsolvable if you want to keep colocated Git and git tooling around, because it has to do with how jj fundamentally works: detached HEADs, detached HEADs everywhere You yourself may not use AI, this is for those who do and are interested in switching to jj

BeetleB 2mo ago
I don't let LLMs make commits for me - git or jj. OK, OK - I lie. For personal projects I do - some handle jj decently well. But at work I don't let it make any commits ... and it never tries to. What tools are you using that won't work with detached heads?
- pmarreck 2mo ago
  I have a lot of things that are built around git already- such as my very commandline, which shouts in bright red if we are on DETACHED HEAD. I know WHY detached heads happen when using jj (from git's perspective); that doesn't mean I have to LIKE it. Why can't interim worktree commits just use the most-recent bookmark, which is 99% of the time what you'd likely want anyway, is easily movable if it's not, and keeps all Git tooling (as well as old Git users like me) from getting confused? I've been letting LLMs make commits for many months now. Perhaps that's the "problem" in my case, and why LLMs' incomplete "mental" model of jj seems to cause issues. You wouldn't see the problem if you are still manually committing. (Also, WHY are you still manually committing? LLMs are pretty great now at git committing, at least!)
  - BeetleB 2mo ago
    > such as my very commandline, which shouts in bright red if we are on DETACHED HEAD. Fix the command line. Mine just shows the git hash, and the color is only red if there's an uncommitted diff. It doesn't care if I'm in a detached head. > Also, WHY are you still manually committing? LLMs are pretty great now at git committing, at least!) I like to control the shape of my commit log.
jauntywundrkind 2mo ago
Glm-5.1+ and gpt-5.5+ seem quite capable. My agents is mostly helping glm with a jj status command it would reliably try but get the quoting wrong on. It's not confused about detached head.

BeetleB 2mo ago

I don't let LLMs make commits for me - git or jj. OK, OK - I lie. For personal projects I do - some handle jj decently well. But at work I don't let it make any commits ... and it never tries to. What tools are you using that won't work with detached heads?

pmarreck 2mo ago
I have a lot of things that are built around git already- such as my very commandline, which shouts in bright red if we are on DETACHED HEAD. I know WHY detached heads happen when using jj (from git's perspective); that doesn't mean I have to LIKE it. Why can't interim worktree commits just use the most-recent bookmark, which is 99% of the time what you'd likely want anyway, is easily movable if it's not, and keeps all Git tooling (as well as old Git users like me) from getting confused? I've been letting LLMs make commits for many months now. Perhaps that's the "problem" in my case, and why LLMs' incomplete "mental" model of jj seems to cause issues. You wouldn't see the problem if you are still manually committing. (Also, WHY are you still manually committing? LLMs are pretty great now at git committing, at least!)
- BeetleB 2mo ago
  > such as my very commandline, which shouts in bright red if we are on DETACHED HEAD. Fix the command line. Mine just shows the git hash, and the color is only red if there's an uncommitted diff. It doesn't care if I'm in a detached head. > Also, WHY are you still manually committing? LLMs are pretty great now at git committing, at least!) I like to control the shape of my commit log.

jauntywundrkind 2mo ago

Glm-5.1+ and gpt-5.5+ seem quite capable. My agents is mostly helping glm with a jj status command it would reliably try but get the quoting wrong on. It's not confused about detached head.