fivem-nui

FiveM NUI Development Best practices for FiveM NUI development — fullscreen UIs, NUI callbacks, messaging, and UI integration. Use this skill whenever you are dealing with FiveM user interfaces to obtain domain-specific knowledge. When to use User asks how to create a UI for FiveM. Creating or editing HTML/CSS/JS files for FiveM resources. Setting up ui_page in fxmanifest.lua. Questions about NUI callbacks, SendNUIMessage, or SetNUIFocus. Need to look up natives → point to https://docs.fivem.net/natives/ . How to use Read individual rule files for detailed explanations and examples: rules/setup.md — Setting up NUI in a resource: ui_page, files entry, folder structure. rules/fullscreen-nui.md — Creating fullscreen NUI pages: SEND_NUI_MESSAGE, SET_NUI_FOCUS, developer tools, referencing assets. rules/nui-callbacks.md — NUI callbacks: RegisterNUICallback, fetch requests, data handling, security. rules/best-practices.md — Best practices: performance, security, communication patterns, error handling. rules/reference-links.md — Official docs and natives reference.