unity-prefab-parser-mcp AGENTS.md

unity-prefab-parser-mcp AGENTS.md is an instructions file for Codex, OpenCode from luckynee/unity-prefab-parser-mcp. It costs 504 tokens per session, scanned A, original, MIT.

Project instructions for a service that parses Unity text-serialized files such as scenes, prefabs, and assets into clean YAML, a readable text format. They describe how to find files, build a project cache, and parse assets.

In plain words
What is it for?
Use them when locating Unity assets, initializing the project's file cache, browsing folders, listing files, or extracting Inspector-visible data from a specific asset.
Why use it?
They provide a repeatable workflow for navigating Unity projects and tell coding agents which parsing tools and settings to use.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/luckynee/unity-prefab-parser-mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/luckynee/unity-prefab-parser-mcp

Made for: Codex, OpenCode.

Wrote 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.

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/luckynee/unity-prefab-parser-mcp/agents-md.svg)](https://agentmods.dev/instructions/luckynee/unity-prefab-parser-mcp/agents-md)
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<a href="https://agentmods.dev/instructions/luckynee/unity-prefab-parser-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/luckynee/unity-prefab-parser-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 504 This file is loaded in full into every session.
When invoked 504 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00504 $0.00504
Opus 5 $0.00252 $0.00252
Sonnet 5 $0.00101 $0.00101
Haiku 4.5 $0.00050 $0.00050

Measured 3d ago against content hash b7256f69229b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

unity-prefab-parser-mcp AGENTS.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 3d 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.

AGENTS.md · 52 lines

What it actually says

Unity Prefab Parser MCP — Agent Instructions

This MCP server parses Unity text-serialized assets (.prefab, .unity, .asset) into clean, Inspector-visible YAML.

First time on a Unity project:

  1. init_unity_project — scan .meta files, build GUID cache (run once)
  2. browse_unity_project — navigate folder tree to find assets
  3. list_unity_assets — list assets in target folder (supports search/filter)
  4. parse_unity_file — parse with preset: "compact" for token efficiency

Subsequent calls: skip init if .unity-mcp-cache.json exists and is < 24h old.

Tool Reference

init_unity_project

  • Input: projectPath (string, required), force (boolean, optional)
  • Run once per project. Saves cache to <projectPath>/.unity-mcp-cache.json

browse_unity_project

  • Input: projectPath (string), subPath (string, optional), depth (number, default 2)
  • Returns folder tree with asset counts

list_unity_assets

  • Input: directory (string), type ("prefab"|"unity"|"asset"|"all"), recursive (boolean), search (string), limit (number)
  • Returns grouped asset list with absolute paths

parse_unity_file

  • Input: filePath (string), config (object with preset: "compact"|"standard"|"minimal")
  • Returns clean YAML with component data

parse_unity_prefab (deprecated)

  • Alias for parse_unity_file

Preset Guide

  • compact — 92% token reduction, best for analysis
  • standard — balanced, shows asset type comments
  • minimal — structural overview only

Available Skills

Load the appropriate skill when the task matches:

Skill When to use
unity-asset-workflow General workflow: init, browse, list, parse
unity-diff-workflow Comparing prefabs, variants, or scenes across versions
unity-scene-workflow Navigating large .unity scenes token-efficiently

Skills are in skills/<skill-name>/SKILL.md in this repo.

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. 3d ago First seen · 52 lines · 504 tokens per session scan A b7256f69229b

Subscribe to this mod's changes

unity-prefab-parser-mcp AGENTS.md is an instructions file published in the GitHub repository luckynee/unity-prefab-parser-mcp (2 stars, last pushed 3mo ago), licensed MIT. It adds 504 tokens to every session, about $0.0025 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.

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