Terms of Use · Semantix

Effective 4 August 2026 · Version 1.1

These terms are the agreement between you and Semantix ("we", "us") covering your use of Semantix Studio and the tools we ship with it (together, "the Software").

We have written this in plain language on purpose. If a sentence here is unclear, that is our fault, not yours — write to us and we will fix the wording.

By installing or using the Software, you agree to these terms. If you do not agree, do not install it.

1. What you may do#

We grant you a personal, worldwide, non-exclusive licence to install and run the Software on any computer you own or control, for as many installations as you need. The licence is revocable in accordance with section 10 — not at whim.

You may use it commercially. At work, on client projects, inside a company, to build software you sell. You do not need a separate licence for that, and we do not charge for it.

Version 1 of Semantix Studio is free. We may in future offer paid plans for optional services that run on our servers. Any such plan will be a separate, clearly-priced agreement — it will not retroactively put a price on the Software you already have.

2. What you make is yours#

You own everything you create with the Software. Your source code, your projects, your data, your configurations, your notes, your memory, the output of any agent you run. We claim no licence over it, no ownership of it, and no right to use it.

We do not train models on your code, your prompts, or anything you make with the Software.

3. What stays on your machine, and what leaves it#

This is the section most tools are vague about. We would rather be exact, because you cannot make a sensible decision about a developer tool without knowing this.

What stays on your machine, always:

Your source code and project files.
The code index and the graph built from them.
Your settings, themes, and local configuration.
Your API keys, in a configuration file in your own home directory, readable only by you.

The editor, the index, and the code graph work fully offline and never upload your code. That is a real property of the Software, not a marketing line — the indexing happens on your computer, and nothing about it requires us.

What leaves your machine, and only when you run an agent:

When you ask an agent to do something using our hosted service, that request carries:

your prompt,
the file context assembled for it — which may include the contents of your files,
the results of tools the agent runs, such as file contents, search results, and command output,
and the API key for the model provider you configured.

This goes to our service, which passes it to the model provider you chose and returns the answer. We do not persist it, we do not log it, and we do not use it for anything other than serving that request. We do not train on it and we do not sell it. Transmission is encrypted.

Nothing here happens in the background. It happens when you run an agent, because running an agent is a request to send work to a model.

4. You may modify and extend it#

This is a grant, not a restriction, and it is deliberate.

You may modify, extend, theme, script, and reconfigure the Software for your own use. You may inspect its files, change its themes and stylesheets, write your own tools and extensions against it, and adapt how it behaves. It runs on your computer; it should answer to you.

We ask two things in return:

Do not redistribute it. Not the Software, not a modified version of it, not repackaged under another name. If you want someone else to have it, send them to us.
Do not resell it, or offer it to third parties as a hosted service, without our written agreement.

The Software is not open source. Its source code is not published, and this section does not grant you rights to any source code we have not shipped to you.

5. What you may not do#

Redistribute, sublicense, rent, lease, or sell the Software.
Remove or alter our name, logo, or notices, and pass the result off as your own product.
Use the Software to break the law, or to build something whose purpose is to harm people.
Attempt to circumvent licensing or access controls on any paid service we later offer.

6. The agent can change your files#

Read this section even if you skip the rest.

Semantix Studio runs AI agents that have real access to your computer. Depending on what you ask and what permissions you grant, an agent can create, modify, move, and delete files, run shell commands, and make network requests. That is the product working as designed. It is also genuinely dangerous.

You are responsible for what you run.

Keep your work in version control, and keep backups. Treat an agent's write access the same way you would treat handing your keyboard to a stranger who is fast, capable, and occasionally confidently wrong.
Review what an agent proposes before you let it act on anything you cannot afford to lose.
AI models produce incorrect output. They invent facts, misread code, and make confident mistakes. Verify anything that matters.

We are not liable for data loss, damaged files, broken systems, or bad decisions resulting from actions an agent takes on your machine. See section 9.

7. AI models, keys, and your accounts#

The Software does not include an AI model.

To use it, you connect your own model — an OpenAI-compatible API key, or a separately-installed Claude Code login. This means:

Your keys are yours. They are stored on your own computer, in your own configuration directory, with owner-only permissions. When you run an agent through our hosted service, the key is sent with that request so we can call your provider on your behalf, under the terms of section 3. We never store it on our side and we never use it for anything else.
Your accounts and bills are yours. Your relationship with your model provider is governed by their terms, not ours. What you are charged for tokens, how they handle your data, and what their models are allowed to do are matters between you and them.
We are not responsible for model output, for provider outages, for price changes, or for a provider terminating your access.

Some capabilities depend on services we run rather than on code shipped inside the download. If those services are unavailable, the features that rely on them will not work, while the editor, the index, and the graph continue to work offline.

8. Early software#

Version 1 is early software, shipped for Linux, and it does not update itself. There is no automatic update mechanism — you install new versions yourself when we publish them.

We may change, remove, or break features between versions. We will try not to surprise you, but we cannot promise stability of any particular behaviour, format, or interface at this stage.

9. No warranty, and the limit of what we owe you#

The Software is provided "as is", without warranty of any kind, express or implied, including any warranty of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that it will be uninterrupted, error-free, or that it will meet your requirements.

To the maximum extent permitted by law, we are not liable for any indirect, incidental, special, or consequential damages, or for lost profits, lost data, or business interruption, arising from your use of or inability to use the Software — even if we were told such damages were possible.

Where liability cannot lawfully be excluded, our total liability to you is limited to the greater of the amount you have paid us for the Software in the twelve months before the claim, or US $50.

10. Ending this agreement#

You may stop using the Software and delete it at any time. That ends this agreement.

We may end this agreement if you materially breach it — for example, by redistributing or reselling the Software. On termination you must stop using it and remove your installations.

Sections 2, 3, 6, 7, 9, and 11 survive termination.

11. Governing law#

These terms are governed by the laws of the State of Israel, and the competent courts of Tel Aviv-Yafo have exclusive jurisdiction over any dispute arising from them.

This does not take away rights you already have. If the consumer-protection law of the country where you live gives you mandatory rights that cannot be waived by agreement, those rights still apply to you, and nothing in these terms overrides them.

12. Changes to these terms#

We may update these terms as the Software changes. When we do, we will change the version and date at the top of this page. Material changes will be announced on our site. Continuing to use the Software after a change means you accept the updated terms.

Every previous version remains identifiable by its version number, so you can always tell which terms you agreed to.

13. Talk to us#

Questions about these terms, or about anything in them that reads as unfair, should go to legal@semantix.dev.

We would rather fix a clause than argue about one.