Borrowing it
Nothing to install: this file belongs to industrix-com-br/openplc-engineering-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.
curl -O https://raw.githubusercontent.com/industrix-com-br/openplc-engineering-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/industrix-com-br/openplc-engineering-mcpWrote 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/industrix-com-br/openplc-engineering-mcp/agents-md)<a href="https://agentmods.dev/instructions/industrix-com-br/openplc-engineering-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/industrix-com-br/openplc-engineering-mcp/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/industrix-com-br/openplc-engineering-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/industrix-com-br/openplc-engineering-mcp/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 | $0.00271 | $0.00271 |
| Opus 5.5 | $0.00108 | $0.00108 |
| Sonnet 5.5 | $0.00054 | $0.00054 |
| Haiku 4.5 | $0.00027 | $0.00027 |
Grade A, and why
openplc-engineering-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 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.
What it actually says
Agent instructions
This repository implements an MCP server for the OpenPLC Editor project. Treat upstream OpenPLC behavior as authoritative when validating project semantics or CLI behavior.
- Read
docs/index.mdfirst. - Do not preload every document or source file.
- Use the task routing table in
docs/index.mdto load only the relevant context. - Treat implementation and tests as the source of truth when documentation and code disagree.
- Update the relevant focused document when behavior, architecture, tooling, or scope changes.
- Keep documentation small and link to another document instead of duplicating detailed explanations.
Project principles:
- OpenPLC project format: support only the current OpenPLC Editor project format. Legacy formats, backward-compatibility fallbacks, migrations, and historical project representations are intentionally out of scope. Do not introduce legacy-format support unless the project scope is explicitly changed;
- prefer the simplest implementation that solves the current requirement;
- use the official MCP Python SDK rather than reproducing SDK behavior;
- expose domain-oriented PLC engineering operations, not generic shell or filesystem access;
- do not reproduce OpenPLC validation or project semantics when OpenPLC can remain authoritative;
- add abstractions only when a concrete requirement justifies them.
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 · 20 lines · 271 tokens per session scan A 17803bb2b033
openplc-engineering-mcp AGENTS.md is an instructions file published in the GitHub repository industrix-com-br/openplc-engineering-mcp (0 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 271 tokens to every session, about $0.0011 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.
openplc-engineering-mcp AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| openplc-engineering-mcp AGENTS.mdindustrix-com-br/openplc-engineering-mcp | Instructions file | 0 | 2mo ago | Apache-2.0 | A | 271 | 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 | 5,685 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |