Borrowing it
Nothing to install: this file belongs to HorizunGroup/horizun-revit-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/HorizunGroup/horizun-revit-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/HorizunGroup/horizun-revit-mcpWrote 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/horizungroup/horizun-revit-mcp/agents-md)<a href="https://agentmods.dev/instructions/horizungroup/horizun-revit-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/horizungroup/horizun-revit-mcp/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/horizungroup/horizun-revit-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/horizungroup/horizun-revit-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.06163 | $0.06163 |
| Opus 5 | $0.03082 | $0.03082 |
| Sonnet 5 | $0.01233 | $0.01233 |
| Haiku 4.5 | $0.00616 | $0.00616 |
Grade A, and why
horizun-revit-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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 466 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Horizun Revit MCP — guide for agents / guía para agentes
You are in the repository of Horizun Revit MCP: the MCP bridge between a client (Claude Code, Codex, any MCP client) and an Autodesk Revit running on this machine. Part of the Horizun Hub ecosystem.
Estás en el repositorio de Horizun Revit MCP: el puente MCP entre un cliente (Claude Code, Codex, cualquier cliente MCP) y un Autodesk Revit corriendo en esta máquina. Parte del ecosistema Horizun Hub.
The name is written
Horizun— capital H, the rest lower case — every time it appears to a user, in any language. NeverHORIZUN, neverhorizunas a word. It is a brand, not an acronym and not shouting. The only upper-case forms that exist are the tool names (horizun_*, always lower case) and the environment-variable prefix (HORIZUN_REVIT_YEARand friends) — those are code identifiers, never how you refer to the product in prose.El nombre se escribe
Horizun— H mayúscula, el resto en minúscula — cada vez que aparece ante un usuario, en cualquier idioma. NuncaHORIZUN, nuncahorizuncomo palabra. Es una marca, no una sigla ni un grito. Las únicas formas en mayúscula que existen son los nombres de las herramientas (horizun_*, siempre en minúscula) y el prefijo de variables de entorno (HORIZUN_REVIT_YEARy demás) — esos son identificadores de código, no cómo te refieres al producto.
English
If the user asked you to install it, this is the whole procedure.
Install
Everything is compiled from this tree, against the Revit already installed on this machine. No executable is downloaded.
Prerequisites — check them first; the script checks them too:
- Windows with at least one Revit 2023–2027 installed
(
C:\Program Files\Autodesk\Revit <year>\RevitAPI.dllexists). - The exact .NET SDK 10.0.400 on PATH (
dotnet --versionanswers), fixed byglobal.jsonso release bytes do not depend on the latest installed patch. Revit ≤ 2024 still builds against .NET Framework 4.8 — the SDK-style projects restore the reference assemblies from NuGet, so the Visual Studio targeting pack is NOT required when NuGet restore is available. Verified on a machine without the pack: 2024 compiled with zero warnings. Only a fully offline machine needs the pack itself. - Revit closed. The script refuses to run with Revit open and changes nothing when it refuses.
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.
- 6d ago Changed · +40 lines · +489 tokens per session 3b376e37e399
- 12d ago First seen · 426 lines · 5,674 tokens per session scan A c5b7434da200
horizun-revit-mcp AGENTS.md is an instructions file published in the GitHub repository HorizunGroup/horizun-revit-mcp (18 stars, last pushed 6d ago), licensed Apache-2.0. It adds 6,163 tokens to every session, about $0.0308 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
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