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Agent Instructions — First Hand

A Unity sample game showcasing the Meta Interaction SDK (ISDK). Designed primarily for hand tracking, with controllers also supported. A published build is available on the Meta Quest Store.

Source-of-truth files (read these first, do not duplicate their contents in this file)

For setup, build steps, SDK versions, and project layout, read:

  • README.md — official setup, scene list, and Voice SDK / wit.ai configuration steps
  • ProjectSettings/ProjectVersion.txt — Unity editor version
  • Packages/manifest.json — Unity package versions and dependency sources
  • .gitattributes — Git LFS configuration
  • LICENSE.txt — license terms (sample is MIT; Assets/ThirdParty/ has its own licenses)

Quest / Horizon-specific notes

  • Sample code lives in Assets/Project/; treat Assets/ThirdParty/ as off-limits for modifications.
  • The Mixed Reality scene depends on a wit.ai project being configured (entities + intents listed in the README). If the drone scene "does nothing", check wit.ai before chasing code bugs.

Meta Quest tooling

This is a Meta Quest / Horizon OS sample. The bespoke intro above is the source of truth for what this project is and how it's built — use it (and the files it points at) instead of restating facts from memory.

When the user asks anything about Quest device behavior, build / deploy / debug / capture flows, on-device performance, or Horizon OS APIs, reach for these tools instead of generic Unity answers:

  • hzdb — Quest-aware ADB wrapper (device list, install / launch / stop, logs, screenshots, Perfetto traces, on-device docs search). Already wired up as an MCP server via .mcp.json, .vscode/mcp.json, and .cursor/mcp.json. Also runnable directly: npx -y @meta-quest/hzdb <subcommand>.
  • Meta Quest Agentic Tools — the full skill set, including Unity-specific skills: https://github.com/meta-quest/agentic-tools. Install per your client (Claude Code: /plugin install meta-vr@meta-quest; Gemini CLI: gemini extensions install https://github.com/meta-quest/agentic-tools; Cursor / VS Code: install the Meta Horizon extension from the Marketplace).

A few behavior expectations:

  • Read this repo's files first. Before answering anything project-specific, read README.md and whichever source-of-truth files the intro above points at. Don't restate their contents in chat — quote or link instead.
  • Use hzdb for device-side work. Anything that touches an attached Quest (install, launch, logs, screenshot, capture, manifest inspection) goes through hzdb, not raw adb.
  • Check live Horizon OS docs before answering API questions. hzdb docs search "..." queries the live docs; training data on Horizon OS APIs goes stale fast.
  • Don't fabricate SDK / engine versions. If a version isn't visible in this repo's files, say so rather than guessing.