An automation package that connects an agent to Siemens TIA Portal V21, software used to program industrial controllers. It provides the connection service, operating instructions, and safety checks for working with those projects.

It helps an agent work with TIA Portal projects through the provided automation service, including projects on a local or remote Windows machine.

It supplies the connection layer and rules needed to inspect or modify TIA projects through supported operations rather than improvised requests.

tia-harness — Plugin for Gemini CLI by renanlido

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/renanlido/tia-harness

Made for: Gemini CLI.

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/plugins/renanlido/tia-harness/gemini-extension/github.svg)](https://agentmods.dev/plugins/renanlido/tia-harness/gemini-extension)

Your own site

<a href="https://agentmods.dev/plugins/renanlido/tia-harness/gemini-extension"><img src="https://agentmods.dev/badge/plugins/renanlido/tia-harness/gemini-extension/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/plugins/renanlido/tia-harness/gemini-extension"><img src="https://agentmods.dev/badge/plugins/renanlido/tia-harness/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

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.

Security

Grade A, and why

tia-harness 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 today.

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.

gemini-extension.json · 23 lines

What it actually says

{
  "name": "tia-harness",
  "version": "0.3.0",
  "description": "Siemens TIA Portal V21 automation harness: the `tia` MCP server (Openness over the PLCWare serve API), the skills and the operating guide (gates, guards, gotchas).",
  "contextFileName": "gemini/GEMINI.md",
  "mcpServers": {
    "tia": {
      "command": "npx",
      "args": ["-y", "@renanlido/tia-openness-mcp"],
      "env": {
        "TIA_API_BASE": "${TIA_API_BASE:-http://localhost:5000}"
      }
    }
  },
  "settings": [
    {
      "name": "PLCWare API URL",
      "description": "URL of the serve API that drives TIA Portal. Leave empty to use http://localhost:5000 (editor and serve on the same machine); use http://<vm-ip>:5000 for a remote Windows host.",
      "envVar": "TIA_API_BASE"
    }
  ]
}

Files

What ships with it

1 file beside gemini-extension.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

schemas/project-spec.schema.json 26 KB

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.

today First seen · 23 lines scan A 1adfffcd65b9

Subscribe to this mod's changes

tia-harness is a plugin published in the GitHub repository renanlido/tia-harness (9 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-10-18.

Building agents Hardware and IoT automation iec-61131-3 industrial-automation mcp openness

tia-portal-openness-mcp

Siemens TIA Portal (博途) Openness automation via the TiaMcpServer MCP — project/PLC/HMI scaffolding, SCL/LAD authoring, compile, download, online read. Bundles the V21 server for one-command install.

bulaofen0036-coder/TIA_Portal_Openness_MCP · not measured

switchbot

Control SwitchBot smart-home devices from Gemini CLI via MCP using the default tool profile and policy-based safety gates.

OpenWonderLabs/switchbot-openapi-cli · not measured

drone-cv-expert

Expert in drone systems, computer vision, and autonomous navigation. Specializes in flight control, SLAM, object detection, sensor fusion, and path planning. Activate on "drone", "UAV", "SLAM", "visual odometry", "PID control", "MAVLink", "Pixhawk", "path planning", "A", "RRT", "EKF", "sensor fusion", "optical flow".

curiositech/some_claude_skills · not measured

tia-harness

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What ships with it

What this file has done since we first saw it

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