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-probuilder/claude-mdgit clone --depth 1 https://github.com/IvanMurzak/Unity-AI-ProBuilderWrote 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-probuilder/claude-md)<a href="https://agentmods.dev/instructions/ivanmurzak/unity-ai-probuilder/claude-md"><img src="https://agentmods.dev/badge/instructions/ivanmurzak/unity-ai-probuilder/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-ProBuilder 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 4d 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.probuilder — exposes ProBuilder mesh operations as MCP tools so AI assistants can create and manipulate 3D geometry in Unity. Built on top of Unity-MCP (com.ivanmurzak.unity.mcp).
Build / run
- Package source:
Unity-Package/Packages/com.ivanmurzak.unity.mcp.probuilder/(Editor tools underEditor/Scripts/Tools/). - Version source of truth:
Unity-Package/Packages/com.ivanmurzak.unity.mcp.probuilder/package.json. Bump with.\commands\bump-version.ps1 -NewVersion "x.y.z". - Releases trigger on push to
mainwhen the version tag is new.
Critical invariants
- Main thread: All Unity API calls inside tool methods MUST be wrapped in
MainThread.Instance.Run(() => { ... })— MCP calls arrive off the main thread. - After mesh edits:
ToMesh()->Refresh()->EditorUtility.SetDirty()->EditorUtils.RepaintAllEditorWindows(). - Face-selection tools accept
faceIndicesORfaceDirection— exactly one.
Find detail in
docs/claude/architecture.md— repo layout, tool pattern, face selection, refresh pattern, assembly defsdocs/claude/new-tool.md— 6-step checklist for adding a tooldocs/claude/error-handling.md—Tool_ProBuilder.Errorconventionsdocs/claude/release.md— version bump + dependency update commandsdocs/claude/ci.md— GitHub Actions release pipeline
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.
- 4d ago First seen · 26 lines · 384 tokens per session scan A 4c5365968b28
Unity-AI-ProBuilder CLAUDE.md is an instructions file published in the GitHub repository IvanMurzak/Unity-AI-ProBuilder (52 stars, last pushed 11d ago), licensed Apache-2.0. 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.
Other instructions, from other repositories
Unity-AI-Animation CLAUDE.md
Instructions for IvanMurzak/Unity-AI-Animation, covering claude.md, what this is, build / run, critical invariants and find detail in.
Unity-AI-Tools-Template CLAUDE.md
Instructions for IvanMurzak/Unity-AI-Tools-Template, covering unity-ai-tools-template, build / run, 1. initialize a new package from the template, 2. open both unity projects so .meta files are generated and 3. bump version across all files in lock-step.
unity-mcp CLAUDE.md
Claude Code instructions for CoplayDev/unity-mcp, covering claude.md, what this project is, architecture, three layers on the python side and transport modes.
unity-cli-loop AGENTS.md
AGENTS.md instructions for hatayama/unity-cli-loop, covering architecture overview, repository map, cli / unity package compatibility, project runner pin and generated skill files.
unity-ui-toolkit-design-system AGENTS.md
Instructions for sinanata/unity-ui-toolkit-design-system, covering agents.md, what this project is, golden rules (do not violate), use the design system in your project and repository layout.
unity-ui-toolkit-design-system copilot-instructions.md
Instructions for sinanata/unity-ui-toolkit-design-system: This repository follows the cross-tool AGENTS.md standard. Read /AGENTS.md for the full guide: the ds- class naming, the token rules, the load-bearing USS import order, build and preview commands, and the pull-request checklist.