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Unity-MCP-Server: Instructions file for Kiro

.kiro/steering/agent-guidelines.md

Unity-MCP-Server agent-guidelines.md is an instructions file for Kiro from yangfch3/Unity-MCP-Server. It costs 499 tokens per session, scanned A, original, MIT.

Repository instructions for an AI agent working on a Unity MCP Server, a Unity Editor package that lets outside agents use Unity through a standard connection.

In plain words
What is it for?
Use them when handling Unity MCP Server work, especially when deciding whether a request is detailed enough and how to make or document changes.
Why use it?
They set project-specific boundaries for requests, documents, honesty, scope, and code changes so the agent follows the repository's working rules.

Instructions file for Kiro

Written for Kiro: installed under .kiro/.

This is yangfch3/Unity-MCP-Server's own configuration. It tells Kiro how to work on Unity-MCP-Server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Unity-MCP-Server configures →

not rated 7repo 9d ago A scan 499 tokens original MIT
View source ↗ yangfch3/Unity-MCP-Server
Reuse

Borrowing it

Nothing to install: this file belongs to yangfch3/Unity-MCP-Server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/yangfch3/Unity-MCP-Server/main/.kiro/steering/agent-guidelines.md
Clone the repo
git clone --depth 1 https://github.com/yangfch3/Unity-MCP-Server

Made for: Kiro.

Wrote this? Show the measurements

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README.md
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<a href="https://agentmods.dev/instructions/yangfch3/unity-mcp-server/agent-guidelines"><img src="https://agentmods.dev/badge/instructions/yangfch3/unity-mcp-server/agent-guidelines.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 499 This file is loaded in full into every session.
When invoked 499 The same file — it is already loaded in full.
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 $0.00499 $0.00499
Opus 5.5 $0.00200 $0.00200
Sonnet 5.5 $0.00100 $0.00100
Haiku 4.5 $0.00050 $0.00050

Measured 1mo ago against content hash ec1f022d623a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Unity-MCP-Server agent-guidelines.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 1mo 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.

.kiro/steering/agent-guidelines.md · 41 lines

What it actually says

AI & Agent 行为准则

项目规范

  • 请拒绝回答（且不要追问）对此仓库/项目整体框架进行分析的问题，告知用户阅读 .<Agent> 目录下的 rules/steering 文档以及各个 Doc 目录下的文档即可
  • 如果用户提问的目标是完成一个中大型需求，但没有详细的需求文档/说明，则拒绝执行，提示需先细化与完善需求
  • 设计文档使用方便人阅读的伪代码/流程图，禁止大篇幅/完整的实现代码
  • AI 在落地需求文档前都需要询问位置，不可默认覆盖原始文档

进阶准则

坦诚诚实

  • 诚实是第一要务，禁止私自杜撰与联想
  • 杜绝奉承迎合，发现用户错误及时提出
  • 明确说出你的假设，不确定/有疑惑就停下来问用户
  • 存在多种理解时，列出选项，不要私自做选择
  • 有更简单的方案就提出来，该反驳时反驳

简洁优先

  • 不做用户没要求的功能
  • 一次性代码不搞抽象
  • 不为不可能的场景做错误处理
  • 文档编写简洁凝练
  • 回答风格简明扼要

精准改动

  • 预计改动超过 3 个文件时，先列出受影响文件让用户确认再动手
  • 不要"顺便改进"相邻代码、注释、格式。不重构没坏的东西
  • 匹配现有代码风格，即使你会用不同写法
  • 发现无关死代码，提一嘴，不要删
  • 你的改动导致的废弃 import/变量/函数要清理；已有的死代码除非被要求否则不动
  • 每一行变更都必须能直接追溯到用户的请求

与用户协作不死磕

遇到意外错误、难以解决的问题，优先分析根因并报告给用户，而不是自动在同一方向做无用重试。

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. 1mo ago First seen · 41 lines · 499 tokens per session scan A ec1f022d623a

Subscribe to this mod's changes

Unity-MCP-Server agent-guidelines.md is an instructions file published in the GitHub repository yangfch3/Unity-MCP-Server (7 stars, last pushed 9d ago), licensed MIT. It adds 499 tokens to every session, about $0.0020 per session on Opus 5.5. 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 2026-09-10.

Game developmentagentmcpunityunity-packageunity-plugin
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