CLI and MCP server for driving the Unreal Engine 5 editor with AI — create and edit materials, blueprints, Niagara, PCG, StateTrees, data tables, widgets, and Enhanced Input. Single Go binary, no Python, no dependencies.

Agent-native TypeScript framework for building MCP servers. Build tools, not infrastructure. Declarative definitions with auth, multi-backend storage, OpenTelemetry, and first-class support for Bun/Node/Cloudflare Workers.

mcp-language-server gives MCP enabled clients access semantic tools like get definition, references, rename, and diagnostics.