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Guide

The complete guide
to AI agents

AI agents are the step beyond chatbots: software that doesn't just answer, but does — reading your inbox, drafting replies, updating your calendar and quietly running the routine tasks that eat your week. This guide explains what agents are and how they work, then walks you through the two leading open-source options — OpenClaw and Hermes Agent — with the security and data-protection questions that matter for a Swiss business.

Published 20 Aug 2026Updated 20 Aug 202612 min read

Key takeaways

  • An AI agent acts, a chatbot talks. Agents plan multi-step work and use tools — your email, calendar, CRM — instead of only generating text.
  • OpenClaw and Hermes Agent are both free, open-source (MIT) agents that run on your own machine and speak to you through the chat apps you already use.
  • Hosted vs local is the decision that matters most for Swiss data protection: running locally keeps your data and configuration under your control.
  • Security is a practice, not a feature. Least privilege, a human approval step and vetted skills turn a powerful agent into a safe one.
  • Start small. One routine task, one channel, read-only at first — then expand as trust builds.

In this guide

Seven short chapters. Read them in order, or jump straight to the question on your mind.

At a glance

Two strong, free options lead the open-source agent space. Here's the one-line version — the full comparison is its own chapter.

🦞 OpenClawHermes Agent
Built byPeter Steinberger / OpenClaw FoundationNous Research
Feels likeA polished assistant inside your chat appsAn agent that learns your workflows and saves them
Best if you…Live in WhatsApp/Telegram and want turnkeyWant self-improving skills + local models
PriceFree (MIT)Free (MIT)

Read the full comparison →

FAQ

An AI agent is software that uses a large language model to plan and carry out multi-step tasks on its own, by calling tools such as your email, calendar or CRM, and by remembering context across sessions.

A chatbot answers and generates text. An agent acts: it can read your inbox, draft and send replies, update your calendar and run background tasks, all through tool calls.

Yes. Both are open source under the MIT license and free to install and run yourself. You bring your own model provider or API key, so running costs depend on the model you connect.

Yes. Both OpenClaw and Hermes Agent are designed to run on your own machine or server, and both can connect to local or hosted language models. Your configuration and history can stay on your hardware.

It can be, if you follow basic rules: grant the least access needed, keep a human approval step for sensitive actions, install only vetted skills, and be aware of prompt-injection risks from untrusted content. See the security chapter for the full picture.

If you live in chat apps and want a polished personal assistant with a large community, start with OpenClaw. If you want a self-improving agent that learns reusable skills and spans terminal, desktop and messaging, start with Hermes Agent.

Glossary

AI agent
Software that uses an LLM to plan and execute tasks autonomously via tools.
Tool calling
The mechanism by which a model instructs the agent runtime to perform an action (read, send, create, search…).
LLM (large language model)
The AI model that does the reasoning; the agent is the harness around it.
Skill
A packaged, reusable procedure (often a SKILL.md file) the agent loads to complete a task consistently.
Memory
Stored context — preferences, people, projects, decisions — that persists across sessions.
Gateway
The component that connects the agent to messaging platforms and routes messages.
Self-hosted
Running software on your own hardware rather than a vendor's cloud.
Prompt injection
An attack where untrusted content (e.g. an email) is crafted to make the model follow hidden instructions.
Sandbox
An isolated environment where actions run with limited access, to contain mistakes or attacks.
Local model
An open-weight model run on your own hardware rather than via a remote API.
DSG / nDSG
The Swiss Data Protection Act (revised 2023) governing how personal data is handled.

Want this set up for your business?

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Christian
Christian
AI trainer & workflow specialist, strongwinds.ch