MCPInstall

esx-framework

by germanfndezBackend & APIs

Trigger: ESX, esextended, xPlayer, PlayerData, ESX.GetPlayerFromId, ESX.RegisterServerCallback, ESX jobs, economy, inventory. Build ESX Legacy resources with server/client functions, xPlayer methods, callbacks and events.

Installs
280
Last 24h
—
Trending rank
—
Security
Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/germanfndez/fiveai-skills --skill esx-framework
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads esx-framework automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

ESX Framework

Server/client API for ESX Legacy: xPlayer, PlayerData, callbacks, events, jobs and money.

Activation Contract

Load this skill when the user creates or edits an ESX resource, touches xPlayer or ESX.PlayerData, needs jobs, money, accounts, items or weapons through ESX, or asks about ESX callbacks, events or best practices.

Hard Rules

  • Get the object with ESX = exports['es_extended']:getSharedObject(). On the client, wait for ESX and ESX.IsPlayerLoaded() before reading ESX.PlayerData.
  • xPlayer exists on the SERVER only (ESX.GetPlayerFromId(source)). ESX.PlayerData exists on the CLIENT only.
  • Always nil-check: if not xPlayer then return end before calling any method.
  • Money, items, weapons, jobs and metadata are mutated on the server through xPlayer.* methods, never from the client.
  • Pass a reason to addMoney, removeMoney, addAccountMoney, removeAccountMoney.
  • Client callbacks (ESX.TriggerClientCallback, ESX.AwaitClientCallback) must never decide anything sensitive: the client can fake the answer.
  • Use ESX.SecureNetEvent for client events that only the server may trigger.
  • Prefer ox_lib for notifications, menus, dialogs and progress bars over ESX UI.
  • Cache PlayerPedId() and update on esx:playerPedChanged; never Wait(0) loops without need.

Decision Gates

NeedUse
Client asks server for dataESX.RegisterServerCallback + ESX.TriggerServerCallback
Server pushes an event to one playerxPlayer.triggerEvent(name, ...)
Server-only client eventESX.SecureNetEvent(name, cb) on the client
Find player by source / identifierESX.GetPlayerFromId / ESX.GetPlayerFromIdentifier
Filter players by job etc.ESX.GetExtendedPlayers(key, value)
Usable itemESX.RegisterUsableItem(item, cb)
Admin command with groupESX.RegisterCommand(name, group, cb, allowConsole, suggestion)

Execution Steps

  1. Confirm es_extended starts before the resource; acquire ESX per side.
  2. Decide the side: mutation and validation on server, display on client.
  3. Fetch xPlayer, nil-check, then validate every client-supplied argument.
  4. Pick the call from Decision Gates; read the matching rules file for signatures.
  5. Return data via callbacks, not paired events.

Output Contract

Return runnable Lua with the client/server split explicit, xPlayer nil-checked, and reasons on money operations. Use ox_lib for UI unless the user asks otherwise.

References

  • rules/core-concepts.md — architecture, PlayerData, xPlayer, startup flow.
  • rules/client-functions.md — client-side ESX functions and player state.
  • rules/server-functions.md — player retrieval, callbacks, commands, jobs, items.
  • rules/xplayer-methods.md — xPlayer money, accounts, inventory, weapons, meta.
  • rules/events-callbacks.md — server/client callbacks, events, SecureNetEvent.
  • rules/best-practices.md — naming, caching, loops, security, Lua 5.4.
  • rules/reference-links.md — official ESX documentation links.

Upstream docs: https://docs.esx-framework.org

FAQ

What does the esx-framework skill do?

Trigger: ESX, esextended, xPlayer, PlayerData, ESX.GetPlayerFromId, ESX.RegisterServerCallback, ESX jobs, economy, inventory. Build ESX Legacy resources with server/client functions, xPlayer methods, callbacks and events.

How do I install esx-framework?

Run npx skills add https://github.com/germanfndez/fiveai-skills --skill esx-framework in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/esx-framework/ (personal) or .claude/skills/esx-framework/ (project).

Which AI agents can use esx-framework?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is esx-framework safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains esx-framework?

It is published by germanfndez in germanfndez/fiveai-skills. It has 280 recorded installs.

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