Borrowing it
Nothing to install: this file belongs to ADN-DevTech/acad-api-skill. 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/ADN-DevTech/acad-api-skill/main/CLAUDE.mdgit clone --depth 1 https://github.com/ADN-DevTech/acad-api-skillWrote 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/adn-devtech/acad-api-skill/claude-md)<a href="https://agentmods.dev/instructions/adn-devtech/acad-api-skill/claude-md"><img src="https://agentmods.dev/badge/instructions/adn-devtech/acad-api-skill/claude-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/adn-devtech/acad-api-skill/claude-md"><img src="https://agentmods.dev/badge/instructions/adn-devtech/acad-api-skill/claude-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 | $0.02111 | $0.02111 |
| Opus 5.5 | $0.00844 | $0.00844 |
| Sonnet 5.5 | $0.00422 | $0.00422 |
| Haiku 4.5 | $0.00211 | $0.00211 |
Grade A, and why
acad-api-skill 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 2mo 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 — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Purpose
Agentic skill set for scaffolding and developing AutoCAD .NET plugins targeting AutoCAD 2027 products (.NET 10, x64). Civil 3D and Plant 3D are vertical toolsets built on top of the AutoCAD base platform — all share the AutoCAD base APIs and assembly loading model.
Target Stack
| Item | Value |
|---|---|
| Target Framework | net10.0-windows |
| Platform | win-x64 |
| AutoCAD base NuGet | AutoCAD.NET 26.0.0 (desktop) / AutoCAD.NET.Core 26.0.0 (DA/headless) |
| Civil 3D NuGet | Civil3D.NET 13.9.628 |
| Plant 3D | Local SDK — no NuGet (see Configurable Paths) |
Configurable Paths
These differ per developer machine. When generating code, substitute real values or prompt the user.
| Variable | Suggested Default | Description |
|---|---|---|
ACAD_HOME |
C:\Program Files\Autodesk\AutoCAD 2027 |
AutoCAD install directory |
PLANT_SDK |
(none — must be set) | Path to Plant 3D SDK inc-x64\ folder |
Plant SDK download: https://aps.autodesk.com/developer/overview/autocad-plant-3d-objectarx-sdk-downloads
If PLANT_SDK is not set, ask the user for the path before generating any Plant 3D .csproj.
Product → Template Map
| Product | dotnet template | NuGet packages added after scaffold |
|---|---|---|
| AutoCAD (desktop) | dotnet new acad |
AutoCAD.NET 26.0.0 |
| AutoCAD (Design Automation) | dotnet new acad |
(Core already wired by template) |
| Civil 3D | dotnet new civil |
Civil3D.NET 13.9.628 |
| Plant 3D | Manual csproj | AutoCAD.NET.Core 26.0.0 + SDK DLL refs |
Verify / install templates
dotnet new list | grep -E "acad|civil"
If missing, you can install them manually from the bundled templates in this repository:
# AutoCAD template
dotnet new install ./templates/acad
# Civil 3D template
dotnet new install ./templates/civil
(Note: If you use the npx installation script, these templates are automatically registered for you).
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.
- 2mo ago First seen · 160 lines · 2,111 tokens per session scan A 27c834c9f891
acad-api-skill CLAUDE.md is an instructions file published in the GitHub repository ADN-DevTech/acad-api-skill (16 stars, last pushed 5mo ago), licensed MIT. It adds 2,111 tokens to every session, about $0.0084 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.