Hashline: Edit by Content Hash

[AviseOffical]

I saw this concept implemented in the oh-my-pi fork, and it seems like a massive quality-of-life improvement for the edit tool. The premise is:

“Perfect edits, fewer tokens. The model points at anchors instead of retyping the lines it wants to change, so whitespace battles and string-not-found loops just stop happening. Edit a stale file and the anchors diverge — we reject the patch before it corrupts anything.”

Because LLM string-matching and indentation failures are so common, is there any plan to bring hash-anchored editing upstream into pi's core file-editing tools? Or would the maintainers prefer this remains a third-party extension?

[alindzon]

this appears to be the biggest issue for the agent, it keeps having to rethink after failed edits resulting in a lot of unnecessary work and delay. I am running Pi with KAT Coder 2.5 Dev no quant on a 128gb Blackwell.

[yumosx]

I also think this is indeed quite good, and I've already supported it in my own coding agent.

https://github.com/pulseaiclub/phi/blob/main/internal/tools/writetool/hashline.go

This implementation was the original approach of oh-my-pi, but now oh-my-pi's implementation of hashline has become very complex—it uses Lark to define a DSL.