Pi Lsp Client

pi-lsp-client

Language Server Protocol integration for the [pi coding agent](https://github.com/badlogic/pi-mono/tree/main/packages/coding-agent). Faithful port of the LSP tool stack from [oh-my-openagent](https://github.com/code-yeongyu/oh-my-openagent), with shared server pool, refCount lifecycle, idle reaping, typed crash retry, and a `/lsp` inspector.

Origin

This package is a port of the LSP tools originally written for [oh-my-openagent (omo)](https://github.com/code-yeongyu/oh-my-openagent) by Yeongyu Kim ([@code-yeongyu](https://github.com/code-yeongyu)). The omo source for the tools lives at `src/tools/lsp/` in that repository.

The same author re-licensed the ported source under MIT for distribution in the pi-coding-agent ecosystem. omo itself remains under SUL-1.0; this package's MIT scope covers only the code that ships in this repository. See [LICENSE](LICENSE) and [NOTICE](NOTICE).

Quick Demo

> Show me the type errors in src/foo.ts.

[lsp_diagnostics] src/foo.ts
E:2 W:1 • 1 file
  E 14:5  Type 'string' is not assignable to type 'number'.
  E 27:1  Cannot find name 'unknownVar'.
  W  9:3  'helper' is declared but its value is never read.

> Rename `oldFoo` to `newFoo` everywhere.

[lsp_prepare_rename] src/lib.ts:42:7
Rename available at 42:7-42:13 (current: "oldFoo")

[lsp_rename] src/lib.ts:42:7 → "newFoo"
✓ Applied 7 edits to 4 files
  - src/lib.ts
  - src/cli.ts
  - src/main.ts
  - test/lib.test.ts

Installation

The package targets the [`pi`](https://github.com/badlogic/pi-mono/tree/main/packages/coding-agent) coding agent. Pi loads extensions from `~/.pi/agent/extensions/`, project `.pi/extensions/`, or via the `--extension` / `-e` CLI flag.

Pick whichever route fits:

# 1. From npm (once published)
pi install npm:@code-yeongyu/pi-lsp-client

# 2. From git (once the repository is pushed)
pi install git:github.com/code-yeongyu/pi-lsp-client

# 3. Manual placement (always works)
git clone https://github.