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lspeasy-server

Build provider-side LSP servers with typed handlers and capability negotiation.

2|Updated Jan 29, 2026
Search Tags:#server#lsp#capabilities#transports#typed-apis#language-server-protocol#lspeasy
One-click install
npx skills add https://github.com/pradeepmouli/lspeasy --skill lspeasy-server
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: lspeasy-server
Source: https://github.com/pradeepmouli/lspeasy/tree/main/skills/lspeasy-server
Command: npx skills add https://github.com/pradeepmouli/lspeasy --skill lspeasy-server

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

lspeasy-server provides a guided pattern for building the provider side of the Language Server Protocol using a typed, capability-aware API, simplifying server creation and ensuring consistent behavior across editors and tooling.

Core Features & Use Cases

  • Typed capability namespaces and strict handler registration to enforce what the client can declare.
  • Full JSON-RPC 2.0 core with typed request/notification handling and error handling.
  • Transport-agnostic server lifecycle with multiple transports (stdio, WebSocket, TCP) and easy startup.

Quick Start

Create an LSPServer instance, register capabilities, and start listening on your transport.

Frequently Asked Questions about lspeasy-server

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build a Language Server Protocol server with typed handlers?▼

You can build a Language Server Protocol server with typed handlers by creating an LSPServer instance, registering typed capability namespaces, and starting the transport listener. This enforces strict handler registration and full JSON-RPC 2.0 request handling.

What transports can I use for an LSP server over WebSocket or TCP?▼

You can use stdio, WebSocket, or TCP transports for LSP servers. The server lifecycle is transport-agnostic, allowing you to start listening on any supported transport with easy startup while maintaining consistent capability negotiation.

How does capability negotiation work when building an LSP server?▼

Capability negotiation enforces typed capability namespaces and strict handler registration, ensuring the client can only declare what the typed handlers explicitly support. This maintains consistent behavior across editors and tooling via the JSON-RPC 2.0 core.

What is the best way to handle JSON-RPC requests in a language server?▼

Handling JSON-RPC requests in a language server is best done using a typed API that enforces strict request and notification handling. lspeasy-server provides a full JSON-RPC 2.0 core with typed handlers and built-in error handling for robust editor communication.

Do I need external dependencies to create a transport-agnostic LSP server?▼

No external dependencies are required to create a transport-agnostic LSP server. The lspeasy-server skill operates with zero dependencies, providing the LSPServer component and related typed APIs to manage the lifecycle across stdio, WebSocket, or TCP.

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