What is omnisim CLAUDE.md?

A file containing instructions for Claude Code in Omnisim, an open-source robotics simulator that provides HTTP/JSON and MCP control, physics, graphics, ROS 2 support, and repeatable benchmarks.

Use it as project-specific guidance when an agent works on the Omnisim repository.

The input only identifies the project and points to an AGENTS.md file; it does not describe the instructions themselves.

How omnilink-tech/omnisim configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to omnilink-tech/omnisim. 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/omnilink-tech/omnisim/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/omnilink-tech/omnisim

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/omnilink-tech/omnisim/claude-md/github.svg)](https://agentmods.dev/instructions/omnilink-tech/omnisim/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/omnilink-tech/omnisim/claude-md"><img src="https://agentmods.dev/badge/instructions/omnilink-tech/omnisim/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/omnilink-tech/omnisim/claude-md"><img src="https://agentmods.dev/badge/instructions/omnilink-tech/omnisim/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 136 This file is loaded in full into every session.

When invoked 136 The same file — it is already loaded in full.

Security scan C 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00136	$0.00136
Opus 5.5	$0.00054	$0.00054
Sonnet 5.5	$0.00027	$0.00027
Haiku 4.5	$0.00014	$0.00014

Measured 2mo ago against content hash b4d3916d188a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

omnisim CLAUDE.md scanned grade C with 1 finding 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- This file exists so Claude Code loads the SAME project instructions that every other coding agent reads from AGENTS.md. AGENTS.md is the single source of truth — keep all guidance there, not here. Why the one-line @

CLAUDE.md · 13 lines

What it actually says

@AGENTS.md

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.

2mo ago First seen · 13 lines · 136 tokens per session scan C b4d3916d188a

Subscribe to this mod's changes

omnisim CLAUDE.md is an instructions file published in the GitHub repository omnilink-tech/omnisim (192 stars, last pushed 2d ago), licensed Apache-2.0. It adds 136 tokens to every session, about $0.0005 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Game development Hardware and IoT ai-agents mcp mujoco physics-simulation reinforcement-learning robot-simulator

omnisim CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
omnisim CLAUDE.mdomnilink-tech/omnisim	Instructions file	192	2d ago	Apache-2.0	C	136	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	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	today	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	275k	2d ago	MIT	A	4,313	Codex, OpenCode

omnisim: Instructions file for Claude Code