Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/meta-quest/webxr-first-steps/gemini-mdgit clone --depth 1 https://github.com/meta-quest/webxr-first-stepsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/meta-quest/webxr-first-steps/gemini-md)<a href="https://agentmods.dev/instructions/meta-quest/webxr-first-steps/gemini-md"><img src="https://agentmods.dev/badge/instructions/meta-quest/webxr-first-steps/gemini-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00079 | $0.00079 |
| Opus 5 | $0.00039 | $0.00039 |
| Sonnet 5 | $0.00016 | $0.00016 |
| Haiku 4.5 | $0.00008 | $0.00008 |
Grade A, and why
webxr-first-steps GEMINI.md 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 5d 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.
This is a copy
100% identical to Unity-TheWorldBeyond GEMINI.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Gemini Instructions
Read AGENTS.md first.
This is a Meta Quest / Horizon OS sample. Prefer Meta Quest Agentic Tools and the hzdb MCP server.
Recommended setup:
gemini extensions install https://github.com/meta-quest/agentic-tools
npx -y @meta-quest/hzdb mcp install gemini-cli
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.
- 5d ago First seen · 13 lines · 79 tokens per session scan A bc85082339a9
webxr-first-steps GEMINI.md is an instructions file published in the GitHub repository meta-quest/webxr-first-steps (177 stars, last pushed 3mo ago), licensed MIT. It adds 79 tokens to every session, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to Unity-TheWorldBeyond GEMINI.md, differing in 0 lines, and is treated as a copy.
Other instructions, from other repositories
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promptasy CLAUDE.md
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promptasy AGENTS.md
AGENTS.md instructions for romanticamaj/promptasy, covering agents.md — promptasy 工程 harness, 專案一句話, 每個 phase 的節奏, 測試金字塔（由快到慢） and 測試策略（成本控制的核心）.
open-dictionary AGENTS.md
Instructions for ahpxex/open-dictionary, covering open dictionary rewrite charter, product framing, core workflow, technical framework and 1. raw ingestion layer.
ab900 CLAUDE.md
Instructions for timothywarner-org/ab900, covering claude.md, repository purpose, architecture, commands and 2. non-ascii punctuation -- must return zero.