Empryo gives the agent the same code intelligence your IDE has: go-to-definition, references, rename, diagnostics, type info. It tries LSP first, falls back to AST tools, then tree-sitter, then regex.

This replaces grep-and-read. The agent navigates the code graph by symbol, not by pattern matching across files. Cheaper, faster, correct.

You don't configure this. It picks the best available backend for every operation.

What it can do

Operation	Examples
Go to definition	"where is `parseConfig` defined?"
Find references	"who calls `parseConfig`?"
Rename	"rename `useChat` to `useConversation` everywhere"
Type info	"what's the return type of `fetchUser`?"
Diagnostics	"any errors in this file?"
Call hierarchy	"what does `buildTools` call?"

All of these come through the navigate and analyze tools.

How it picks a backend

LSP → ts-morph (TS/JS) → tree-sitter (30+ langs) → regex

If LSP isn't attached for your language, the agent still works - the lower tiers cover most queries.

LSP always-on

The agent has LSP access even when the editor panel is closed. When you open Neovim (Ctrl+E), requests route through your LSP servers there. When it's closed, Empryo spawns standalone servers.

Check what's attached:

/lsp status

Install more servers through the Mason registry:

/lsp install

After every edit

Empryo snapshots diagnostics before the edit, compares after, and tells the agent:

New errors it just introduced
Errors it just fixed
Errors in other files caused by the edit

The agent sees this instantly - no need to run a full typecheck.