What is OpticMCP AGENTS.md?

Repository-specific instructions for OpticMCP, a Python project that connects computer-vision tools to the Model Context Protocol (MCP), a standard way for agents to call tools.

Use them when developing or testing OpticMCP, adding camera or vision tools, running its server, checking code, or writing MCP-compatible tool responses.

They give contributors the commands, coding conventions, and safety rules needed to work on the project without corrupting MCP communication. In particular, they address OpenCV's diagnostic output and binary image results.

How Timorleiderman/OpticMCP configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to Timorleiderman/OpticMCP. 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/Timorleiderman/OpticMCP/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/Timorleiderman/OpticMCP

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/timorleiderman/opticmcp/agents-md/github.svg)](https://agentmods.dev/instructions/timorleiderman/opticmcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/timorleiderman/opticmcp/agents-md"><img src="https://agentmods.dev/badge/instructions/timorleiderman/opticmcp/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/timorleiderman/opticmcp/agents-md"><img src="https://agentmods.dev/badge/instructions/timorleiderman/opticmcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 221 This file is loaded in full into every session.

When invoked 221 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.

Model	Per session	Once invoked
Fable 5.1	$0.00221	$0.00221
Opus 5.5	$0.00088	$0.00088
Sonnet 5.5	$0.00044	$0.00044
Haiku 4.5	$0.00022	$0.00022

Measured 2mo ago against content hash 0fa447c69036, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

OpticMCP 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 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.

AGENTS.md · 22 lines

What it actually says

OpticMCP - Agent Guidelines

Commands

Run server: uv run optic-mcp
Run tests: uv run pytest
Lint: uv run ruff check src/

Code Style

Python 3.10+, use type hints for all function signatures
Docstrings: multi-line describing what the function does and returns
Naming: snake_case for functions/variables, descriptive names
Imports: stdlib → third-party → local, one per line
Error handling: raise RuntimeError with context, use try/finally for cleanup

Critical: OpenCV + MCP

OpenCV prints to stderr which corrupts MCP stdio. Always suppress stderr at fd level BEFORE importing cv2 (see _suppress_opencv_stderr() in src/optic_mcp/server.py).

MCP Tools

When adding camera/vision tools, use the @mcp.tool() decorator. Tools should return JSON-serializable data or base64-encoded images for binary data.

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 · 22 lines · 221 tokens per session scan A 0fa447c69036

Subscribe to this mod's changes

OpticMCP AGENTS.md is an instructions file published in the GitHub repository Timorleiderman/OpticMCP (4 stars, last pushed 10mo ago), licensed MIT. It adds 221 tokens to every session, about $0.0009 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 2026-08-31.

OpticMCP AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
OpticMCP AGENTS.mdTimorleiderman/OpticMCP	Instructions file	4	10mo ago	MIT	A	221	Codex, OpenCode
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
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,649	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	1,907	GitHub Copilot

OpticMCP: Instructions file for Codex