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/ivanmurzak/unity-ai-particlesystem/claude-mdgit clone --depth 1 https://github.com/IvanMurzak/Unity-AI-ParticleSystemWrote 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/ivanmurzak/unity-ai-particlesystem/claude-md)<a href="https://agentmods.dev/instructions/ivanmurzak/unity-ai-particlesystem/claude-md"><img src="https://agentmods.dev/badge/instructions/ivanmurzak/unity-ai-particlesystem/claude-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 | $0.00384 | $0.00384 |
| Opus 5 | $0.00192 | $0.00192 |
| Sonnet 5 | $0.00077 | $0.00077 |
| Haiku 4.5 | $0.00038 | $0.00038 |
Grade A, and why
Unity-AI-ParticleSystem CLAUDE.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.
What it actually says
CLAUDE.md
What this is
Unity package com.ivanmurzak.unity.mcp.particlesystem exposing two MCP tools — particle-system-get and particle-system-modify — so AI agents can inspect and modify Unity ParticleSystem components. Built on the Unity-MCP platform.
Build / run
- Package source:
Unity-Package/Packages/com.ivanmurzak.unity.mcp.particlesystem/(Editor + Runtime + Tests) - Update Unity-MCP dependency:
.\commands\update-ai-game-developer.ps1(-WhatIfto preview) - Bump version:
.\commands\bump-version.ps1 -NewVersion "x.y.z"(-WhatIfto preview) - Tests run inside Unity Editor (NUnit +
[UnityTest]); CI usesgame-ci/unity-test-runner@v4.
Critical invariants
- Main thread only. All Unity module reads/writes MUST be dispatched via
MainThread.Instance.Run(...). ReflectorNet calls (reflector.Serialize,reflector.TryPopulate) touch Unity structs and must not run off the main thread. - Tools are partial classes on
Tool_ParticleSystem— one op per file (ParticleSystem.Get.cs,ParticleSystem.Modify.cs).
Find detail in
docs/claude/architecture.md— repo structure, MCP tool registration, ReflectorNet usage, assemblies, testsdocs/claude/models.md—ParticleSystemData, response types,GameObjectRef,ComponentRefdocs/claude/release.md—bump-version.ps1and files it touchesdocs/claude/ci.md—release.yml,test_unity_plugin.yml, Unity version matrix
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 · 25 lines · 384 tokens per session scan A 0210b14176cf
Unity-AI-ParticleSystem CLAUDE.md is an instructions file published in the GitHub repository IvanMurzak/Unity-AI-ParticleSystem (52 stars, last pushed 15d ago), licensed MIT. It adds 384 tokens to every session, about $0.0019 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 2026-08-30.
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Instructions for IvanMurzak/Unity-AI-Animation, covering claude.md, what this is, build / run, critical invariants and find detail in.
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