Hz Platform Sdk

Organization

meta-quest

hz-platform-sdk

Guides integration of the Horizon Platform SDK for Meta Quest and Horizon OS Android/Kotlin apps — achievements, IAP, users, leaderboards, presence, notifications, abuse reporting, entitlements, asset files, application lifecycle, consent, device integrity, language packs, user age categories, and rate and review. Covers setup, initialization, API usage, data types, error handling, and best practices for all 17 public platform SDK packages.

Overview

Publisher	meta-quest
Repository	`agentic-tools`
Skill name	`hz-platform-sdk`
Stars	195
Forks	17
Bundled files	18
License	Apache-2.0
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
18 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by meta-quest on GitHub. Read the source before you install it.

Installation

Install the Hz Platform Sdk AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/meta-quest/agentic-tools.git /tmp/agentic-tools
mkdir -p .claude/skills
cp -r /tmp/agentic-tools/skills/hz-platform-sdk .claude/skills/hz-platform-sdk

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Hz Platform Sdk in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Hz Platform Sdk on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Hz Platform Sdk is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Horizon Platform SDK - Android/Kotlin Integration Guide

When to Use

Use this skill when a developer:

Wants to integrate any Horizon Platform SDK feature in a Meta Quest Android/Kotlin application
Asks about setup, initialization, or dependencies for the SDK
Needs help with a specific public platform API (achievements, IAP, users, etc.)
Is troubleshooting errors or status codes from any SDK package
Asks about HorizonServiceConnection, entitlements, or HzPlatformService

Quick Start

Setup guide: https://developers.meta.com/horizon/documentation/android-apps/ps-setup-kotlin
Maven artifacts: https://central.sonatype.com/search?namespace=com.meta.horizon.platform.sdk

Available APIs

Feature	Reference	Description
Abuse Report	`abuse-report`	Listen for report button events in the system panel
Achievements	`achievements`	Unlock, track progress, and query simple/count/bitfield achievements
Application	`application`	Get app version, launch other apps, manage self-update downloads
Application Lifecycle	`application-lifecycle`	Detect launch type, handle deeplinks, log deeplink results
Asset File	`asset-file`	List, download, cancel, and delete downloadable asset files (DLC)
Consent	`consent`	Check and launch user consent flows
Device Application Integrity	`device-application-integrity`	Verify device and app integrity tokens
Entitlements	`entitlements`	Verify app purchase legitimacy and user authorization
Group Presence	`group-presence`	Set/clear presence, manage sessions, send invites, launch panels
In-App Purchases (IAP)	`iap`	Retrieve products, purchase history, checkout flow, consume purchases
Language Pack	`language-pack`	Get/set language packs, track localization downloads
Leaderboards	`leaderboards`	Retrieve leaderboard info, fetch/write entries with filtering
Notifications	`notifications`	Send device notifications with actions and icons
Rate and Review	`rate-and-review`	Check eligibility and launch the rating/review UI
Rich Presence	`rich-presence`	Set/clear rich presence status and destinations (deprecated; prefer group-presence)
User Age Category	`user-age-category`	Query user age group and report age categories
Users	`users`	Retrieve user profiles, friends, access tokens, identity verification

How to Use

First, read references/common-setup.md for shared setup instructions, initialization code, and common status codes that apply to all APIs.
Then, read the specific reference file for the API you need (e.g., references/iap.md for in-app purchases).

Each reference file contains only the package-specific content: API operations, data types, examples, and package-specific notes. The common setup and error codes are centralized in common-setup.md to avoid duplication.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

references/abuse-report.md2 KB
references/achievements.md21 KB
references/application-lifecycle.md17 KB
references/application.md23 KB
references/asset-file.md22 KB
references/common-setup.md5 KB
references/consent.md15 KB
references/device-application-integrity.md10 KB
references/entitlements.md10 KB
references/group-presence.md31 KB
references/iap.md21 KB
references/language-pack.md16 KB
references/leaderboards.md22 KB
references/notifications.md15 KB
references/rate-and-review.md10 KB
references/rich-presence.md15 KB
references/user-age-category.md11 KB
references/users.md13 KB

Frequently asked questions

What does the Hz Platform Sdk AI skill do?

Why use Hz Platform Sdk on TypingMind?

Because you install it once and use it with any model. Hz Platform Sdk is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Hz Platform Sdk in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/meta-quest/agentic-tools/tree/main/skills/hz-platform-sdk. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Hz Platform Sdk?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Hz Platform Sdk?

As many as you like. As long as a model supports skills, you can use Hz Platform Sdk with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Hz Platform Sdk AI skill free?

Yes. It is published on GitHub by meta-quest under the Apache-2.0 license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

View all

Verification Before Completion

obra

CommunityPopular

Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence…

Writing Plans

Use when you have a spec or requirements for a multi-step task, before touching code

Ask Matt

Ask which skill or flow fits your situation. A router over the skills in this repo.

Code Review

Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes: Standards (does the code follow this repo's documented coding standards?) and Spec (does the code match what…

Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Horizon Platform SDK - Android/Kotlin Integration Guide

When to Use

Quick Start

Available APIs

How to Use

Bundled files

Frequently asked questions

Related AI Skills

Set up your own AI workspace now