Borrowing it
Nothing to install: this file belongs to faust-machines/fusion360-mcp-server. 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/faust-machines/fusion360-mcp-server/main/AGENTS.mdgit clone --depth 1 https://github.com/faust-machines/fusion360-mcp-serverWrote 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/faust-machines/fusion360-mcp-server/agents-md)<a href="https://agentmods.dev/instructions/faust-machines/fusion360-mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/faust-machines/fusion360-mcp-server/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/faust-machines/fusion360-mcp-server/agents-md"><img src="https://agentmods.dev/badge/instructions/faust-machines/fusion360-mcp-server/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 | $0.02580 | $0.02580 |
| Opus 5.5 | $0.01032 | $0.01032 |
| Sonnet 5.5 | $0.00516 | $0.00516 |
| Haiku 4.5 | $0.00258 | $0.00258 |
Grade A, and why
fusion360-mcp-server 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 1mo 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 — 232 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Overview
This is an MCP server (93 tools) that connects AI coding agents to Autodesk Fusion 360 for CAD automation. It consists of two pieces:
- MCP Server (this repo) — speaks MCP protocol over stdio, forwards commands to Fusion via TCP
- Fusion 360 Add-in — runs inside Fusion, executes commands on the main thread via CustomEvent bridge
How the system works
Claude Code ──stdio──> MCP Server ──TCP :9876──> Fusion Add-in ──CustomEvent──> Main Thread
<──JSON── <──result──
The add-in uses a CustomEvent + work queue pattern to safely dispatch all Fusion API calls to the main thread. Socket threads submit work items and block on a per-item threading.Event until the main thread completes execution.
Available tools (93)
Scene & Query
| Tool | Description |
|---|---|
ping |
Health check (no Fusion API, instant) |
get_scene_info |
Design name, bodies, sketches, features, camera |
get_object_info |
Detailed info about a named body or sketch |
list_components |
List all components in the design |
Sketching
| Tool | Description |
|---|---|
create_sketch |
New sketch on xy/yz/xz, optional offset |
draw_rectangle |
Rectangle in most recent sketch |
draw_circle |
Circle in most recent sketch |
draw_line |
Line in most recent sketch |
draw_arc |
Arc (center + start + sweep angle) |
draw_spline |
Fit-point or control-point spline |
create_polygon |
Regular polygon (3–64 sides) |
add_constraint |
Geometric constraint (coincident, parallel, tangent, etc.) |
auto_constrain |
Auto-constrain a sketch (Fusion 2026+ AutoConstrain API) |
add_dimension |
Driving dimension (distance, angle, radial, diameter) |
offset_curve |
Offset connected sketch curves |
trim_curve |
Trim at intersections |
extend_curve |
Extend to nearest intersection |
project_geometry |
Project edges/bodies onto sketch plane |
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.
- 1mo ago Changed · +4 lines · +83 tokens per session 2a75e089a039
- 2mo ago First seen · 228 lines · 2,497 tokens per session scan A baac0b7b1111
fusion360-mcp-server AGENTS.md is an instructions file published in the GitHub repository faust-machines/fusion360-mcp-server (144 stars, last pushed 1mo ago), licensed MIT. It adds 2,580 tokens to every session, about $0.0103 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.
fusion360-mcp-server AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| fusion360-mcp-server AGENTS.mdfaust-machines/fusion360-mcp-server | Instructions file | 144 | 1mo ago | MIT | A | 2,580 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |