horizun-revit-mcp: Instructions file for Codex

AGENTS.md

horizun-revit-mcp AGENTS.md is an instructions file for Codex, OpenCode from HorizunGroup/horizun-revit-mcp. It costs 7,919 tokens per session, scanned A, original, Apache-2.0.

Repository guidance for Horizun Revit MCP, a bridge between an MCP-compatible coding assistant and Autodesk Revit running on the same machine.

In plain words
What is it for?
Use it when installing or configuring the bridge, connecting an assistant to Revit, or writing user-facing documentation and tool references.
Why use it?
It documents the required product naming, installation, configuration, and client setup rules for this Revit connection.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Claude Code; mentions Codex; built for cline.

This is HorizunGroup/horizun-revit-mcp's own configuration. It tells Codex and OpenCode how to work on horizun-revit-mcp 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 horizun-revit-mcp configures →

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/HorizunGroup/horizun-revit-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/HorizunGroup/horizun-revit-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.

agentmods badge for horizun-revit-mcp AGENTS.md

README.md
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Your own site
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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.

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Your own site · 80×15
<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>
Per session 7,919 This file is loaded in full into every session.
When invoked 7,919 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 $0.07919 $0.07919
Opus 5.5 $0.03168 $0.03168
Sonnet 5.5 $0.01584 $0.01584
Haiku 4.5 $0.00792 $0.00792

Measured 24d ago against content hash af93b04c6dae, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 24d 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 · 572 lines

How it starts

The opening of the file, as written. The whole thing — 572 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

English · Español

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. Never HORIZUN, never horizun as 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_YEAR and 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. Nunca HORIZUN, nunca horizun como 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_YEAR y 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 the published release (default)

For “install this repo” or “install everything necessary”, use the published installer. It includes the MCP server runtime and the add-ins; Git and the .NET SDK are not required. Check Windows, an installed Revit 2023–2027, and that Revit is closed first. Read the unsigned-release disclosure in README.md before using the explicit acknowledgement below.

Read the full file on GitHub · 572 lines

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. 24d ago Changed · +29 lines · +518 tokens per session af93b04c6dae
  2. 1mo ago Changed · +30 lines · +588 tokens per session 8fb1c357e5e0
  3. 1mo ago Changed · +2 lines · +68 tokens per session 5a59a05a77e9
  4. 1mo ago Changed · +45 lines · +582 tokens per session 898391c474af
  5. 2mo ago Changed · +40 lines · +489 tokens per session 3b376e37e399
  6. 2mo ago First seen · 426 lines · 5,674 tokens per session scan A c5b7434da200

Subscribe to this mod's changes

horizun-revit-mcp AGENTS.md is an instructions file published in the GitHub repository HorizunGroup/horizun-revit-mcp (79 stars, last pushed 5d ago), licensed Apache-2.0. It adds 7,919 tokens to every session, about $0.0317 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 2026-08-30.

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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode