I think about half the IDEs I've ever used just had this as a feature. Right-click on function, click on "change signature", wait a few seconds, verify with `git diff`.

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unshavedyak 3 hours ago | parent | next [-]

I actually still like LLMs for this. I use rust LSP (rust analyzer) and it supports this, but LLMs will additionally go through and reword all of the documentation, doc links, comments, var names in other funcs in one go, etc.

Are they perfect? Far from it. But it's more comprehensive. Additionally simple refactors like this are insanely fast to review and so it's really easy to spot a bad change or etc. Plus i'm in Rust so it's typed very heavily.

In a lot of scenarios i'd prefer an AST grep over an LSP rename, but hat also doesn't cover the docs/comments/etc.

	▲	mikestorrent an hour ago \| parent [-]
		Shouldn't the LLM have some tool that gives it AST access, LSP access, and the equiv of sed/grep/awk? It doesn't necessarily need to read every file and do the change "by hand".

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ep103 3 hours ago | parent | prev [-]

yeah, and this has the advantage of both being deterministic, and only updating things that are actually linked as opposed to also accidentally updating naming collisions

	▲	mrbnprck 3 hours ago \| parent [-]
		Arguably its only a matter of making lsp features available to the coding agent via tool calls (CLI, MCP) to prevent the model start doing such changes "manually" but rather use the deterministic tools.