[Feature Request]: Allow ai to call the lsp method to view the data

[jinzhongjia]

If Ai is allowed to call the lsp method to view data, I think the answer effect of Ai may be improved if a small number of files is given to Ai.

In fact, this should have miraculous results in large projects

I've tried vectorcode and the result is that the vectorcode query returns too much and it's easy to go beyond the context limit

[ravitemer]

Is this what you mean? Let LLM execute some lua code like vim.lsp.buf.references() and traverse through the codebase?

I tried to do this with the native Neovim MCP server while building that. I wanted to provide some tools like find references etc. The main issue while making the LLM to work with neovim's lsp api is that most of the vim.lsp.buf.* methods need the current cursor position or the position of the symbol in the buffer. While chatting, as far as I know there isn't a way to get for e.g all the references of particular symbol given it's name. If we have the position of that symbol in the buffer, we get use the lsp api to get all the references and pass them to LLM.

Please let me know if you have any other ideas.

One alternative might be using treesitter in someway to understand the project. However, there are MCP servers that do that. I just found this https://github.com/wrale/mcp-server-tree-sitter. I am sure there are better ones that this.

[jinzhongjia]

Yes, just like you say:

Let LLM execute some lua code like vim.lsp.buf.references() and traverse through the codebase

I'll try to find the feasibility of this solution

[jinzhongjia]

I thought about it carefully, how to make ai correctly generate the input of lsp request or convert the input of ai into lsp request. This is the main difficulty in this implementation

[ravitemer]

Indeed!

[jinzhongjia]

As for the response, this is very simple. We can directly use the corresponding uri+cod block or file content + number of rows + columns of the code for the response.

[jinzhongjia]

Related library, I found this https://github.com/jonrad/lsp-mcp/tree/main

[ravitemer]

Is it working? The npx version seems to be broken. Anyway you might find this treesitter server useful https://github.com/wrale/mcp-server-tree-sitter