sglang

Serve LLMs with prefix caching and constrained decoding for structured outputs.

Updated Feb 15, 2026
One-click install
npx skills add https://github.com/ricable/mcai --skill sglang-ricable
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sglang
Source: https://github.com/ricable/mcai/tree/main/.agents/skills/sglang
Command: npx skills add https://github.com/ricable/mcai --skill sglang-ricable

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

SGLang removes the friction of serving language models when you need reliable structure, shared-prefix reuse, and production-grade throughput. It turns slow, repetitive prompt processing into fast, cache-aware execution for modern agent and inference workloads.

Core Features & Use Cases

  • Structured generation: Produce JSON, regex-constrained text, and grammar-guided outputs for extraction, form filling, and API responses.
  • Agent and tool workflows: Build multi-turn assistants that reuse system prompts, tool definitions, and shared context efficiently.
  • High-performance serving: Deploy OpenAI-compatible model endpoints with RadixAttention caching, batching, multi-GPU support, and monitoring for real-world traffic.

Quick Start

Use the sglang skill to launch a compatible model server and generate structured outputs with prefix caching for your agent or application workflow.

Frequently Asked Questions about sglang

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

FAQPage Schema
How do I serve LLMs with reliable JSON extraction and structured generation?

Structured LLM serving uses constrained decoding and grammar-based generation to guarantee valid JSON outputs. SGLang automates this process, enabling reliable extraction, form filling, and API responses for production workloads.

What's the best way to speed up multi-turn agent workflows with shared system prompts?

Multi-turn agent workflows run faster with automatic prefix caching. SGLang applies RadixAttention to reuse shared system prompts and tool definitions across turns, eliminating repetitive prompt processing overhead.

Can I deploy OpenAI-compatible inference endpoints with multi-GPU support?

OpenAI-compatible inference endpoints can be deployed with multi-GPU support and batching. SGLang provides high-throughput model serving capabilities, allowing real-world traffic handling with integrated monitoring controls.

Does structured LLM serving require specific hardware to handle high-throughput traffic?

Structured LLM serving at scale requires GPU-backed model serving hardware. SGLang relies on RadixAttention caching and multi-GPU support to process high-throughput production workloads efficiently.

What is RadixAttention and when do I need it for constrained decoding?

RadixAttention is a prefix caching mechanism that accelerates constrained decoding by reusing shared context. You need it when running high-throughput LLM serving workloads like regex outputs, tool-calling agents, and grammar-based generation.

Why does my LLM serving slow down during repetitive prompt processing for tool-calling agents?

LLM serving slows down without automatic prefix caching because repetitive prompts are reprocessed constantly. SGLang solves this using RadixAttention to cache shared context, significantly accelerating multi-turn tool-calling agents.