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hytale-ui-windows

hytale-ui-windows is a skill for Claude Code, Codex from MnkyArts/hytale-skills. It costs 61 tokens per session (10,156 once invoked), scanned A, original, MIT.

A guide to creating custom user interfaces for Hytale server plugins, including windows, containers, menus, forms, and HUD elements.

In plain words
What is it for?
Use it to build inventory or crafting interfaces, custom pages, menus, and overlays with Java classes and .ui layout files.
Why use it?
It explains how a plugin can show interactive screens and respond to player actions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is $C = "../Common.ui";.

not rated 5repo 7mo ago A scan 61 tokens original MIT

Good fit Use it to build inventory or crafting interfaces, custom pages, menus, and overlays with Java classes and .ui layout files.

Compare 6 skills from other repositories ↓
View source ↗ MnkyArts/hytale-skills
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/MnkyArts/hytale-skills
agentmods
npx agentmods add skills/mnkyarts/hytale-skills/hytale-ui-windows

Made for: Claude Code, Codex.

Wrote this? Show the measurements

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README.md
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Your own site
<a href="https://agentmods.dev/skills/mnkyarts/hytale-skills/hytale-ui-windows"><img src="https://agentmods.dev/badge/skills/mnkyarts/hytale-skills/hytale-ui-windows/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/mnkyarts/hytale-skills/hytale-ui-windows"><img src="https://agentmods.dev/badge/skills/mnkyarts/hytale-skills/hytale-ui-windows.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 10,156 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.10156
Opus 5 $0.00030 $0.05078
Sonnet 5 $0.00012 $0.02031
Haiku 4.5 $0.00006 $0.01016

Measured 11d ago against content hash f50dcdf0fa98, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

hytale-ui-windows scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/hytale-ui-windows/SKILL.md · 1,561 lines

How it starts

The opening of the file, as written. The whole thing — 1,561 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hytale UI Windows

Complete guide for creating custom UI windows, container interfaces, and interactive menus in Hytale server plugins.

When to use this skill

Use this skill when:

  • Creating custom inventory windows
  • Building container interfaces (chests, benches)
  • Implementing crafting UI systems
  • Making interactive menus
  • Handling window actions and clicks
  • Syncing window state between server and client
  • Creating .ui layout files for custom pages
  • Designing HUD elements and overlays

UI System Overview

Hytale's UI system consists of two main approaches:

  1. Window System (Java) - For inventory containers, crafting benches, and block-tied UIs

    • Uses Window classes with WindowManager
    • Sends JSON data via getData()
    • Handles predefined WindowAction types

  2. Custom UI Pages (Java) - For dynamic forms, lists, dialogs, and interactive pages

    • Uses CustomUIPage classes with PageManager
    • Loads .ui files dynamically via UICommandBuilder
    • Binds events with typed data via UIEventBuilder

Both systems use client-side .ui files to define visual layout and styling.

.ui Files

UI files (.ui) are client-side layout files that define the visual structure of windows and pages. They use a declarative syntax with:

  • Variables (@Name = value;) - Reusable values and styles
  • Imports ($C = "path/to/file.ui";) - Reference other UI files
  • Elements (WidgetType { properties }) - UI widgets with nested children
  • Templates ($C.@TemplateName { overrides }) - Instantiate reusable components

IMPORTANT: File Location

All .ui files MUST be placed in resources/Common/UI/Custom/ in your plugin JAR.

your-plugin/
  src/main/resources/
    manifest.json                    # Must have "IncludesAssetPack": true
    Common/
      UI/
        Custom/
          MyPage.ui                  # Your custom UI files go here
          MyHud.ui
          ListItem.ui

Requirements:

  1. Your manifest.json MUST contain "IncludesAssetPack": true
  2. UI files go in resources/Common/UI/Custom/ (NOT assets/Server/Content/UI/Custom/)
  3. In Java code, reference files by filename only: commandBuilder.append("MyPage.ui")

Read the full file on GitHub · 1,561 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 1,561 lines · 61 tokens per session scan A f50dcdf0fa98

Subscribe to this mod's changes

hytale-ui-windows is a skill published in the GitHub repository MnkyArts/hytale-skills (5 stars, last pushed 7mo ago), licensed MIT. It adds 61 tokens to every session and 10,156 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

FrontendGame development
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