01Who is responsible for the extension
The Jev Ultrafast Agent extension (“the extension”) is published by NEURISE sp. z o.o., ul. Karola Szymanowskiego 6/10, 99-300 Kutno, KRS 0001208946, NIP 7752678033 (“Neurise”). The extension was created by @miuoshek. Contact for privacy matters: seo@neurise.io.
The extension runs entirely in your browser. Neurise does not receive the data that the extension processes and is not its controller. This policy describes what the extension itself does. Use of the neurise.io website is covered by the website privacy policy (in Polish).
02What the extension sends and where
Nothing leaves the browser until you click Start. During a task, the extension reads the one tab you pointed it to and, in each step, sends the following to the model provider you configured yourself (Anthropic, OpenAI, OpenRouter, Groq, DeepSeek, TypeSafe or your local or own server):
- the page URL and title,
- up to 6,000 characters of visible page text,
- the list of interactive elements with their role, label and current value - never password fields, file fields or hidden fields,
- the text of your task and the list of actions performed in this task.
The data goes nowhere else. How the model provider processes it is governed by that provider's own privacy policy. With a local model (Ollama, LM Studio), the data does not leave your computer.
03What the extension stores
- API keys, the choice of provider and model, execution settings and the last task text - in
chrome.storage.local, only on your device. The API key is sent only as an authentication header to the selected provider. - The extension does not save browsing history. The task state exists only in memory while the task runs and disappears when it ends.
- The extension does not use cookies, analytics, advertising or user identifiers.
04Permissions and what they are for
| Permission | Purpose |
|---|---|
scripting + site access | Reading the elements and text of the tab you are automating, and performing the chosen action. You choose the page, so the list of sites cannot be limited in advance. The script runs only in that tab and only during a task. |
tabs | Selecting the active tab as the task target and reading its address and title. |
storage | Saving settings and keys locally. |
sidePanel | Side panel: goal, settings and step log. |
debugger | Optional “trusted input events” mode, off by default. The browser shows a debugging bar, and the session ends together with the task. |
The extension contains no remote code: all scripts are in the package and nothing is loaded from the network.
05Limited use of data
Data obtained by the extension is used solely to perform the task you started. It is not sold, not used for advertising or credit scoring, and not passed to anyone other than the model provider you chose.
06Your choices
- You can change or remove the provider and the API key in the side panel at any time.
- The Stop button halts the task; after that, nothing more is sent.
- Uninstalling the extension removes all of its local data.
- You can have data passed to the model provider deleted in line with that provider's rules - the extension has no access to it.
07Changes to this policy
If the extension starts sending or storing more than described above, we will first update this page and describe the change in the version history.
ENPrivacy policy (English summary)
Jev Ultrafast Agent is published by NEURISE sp. z o.o. (Kutno, Poland; KRS 0001208946) and created by @miuoshek. It runs entirely in your browser, has no backend, no accounts and no analytics. Nothing leaves the browser until you start a run. During a run it sends, to the model endpoint you configured yourself, the active tab's URL and title, up to 6,000 characters of visible text, the list of interactive elements with role, label and current value (never password, file or hidden fields), and your task with the actions taken so far. API keys and settings are stored only in chrome.storage.local and the key is sent only as the authentication header to your endpoint. Data is used solely to perform the task you started; it is not sold, not used for advertising or creditworthiness. Permissions: scripting and host access (read and act on the tab you automate), tabs, storage, sidePanel, debugger (optional trusted-input mode, off by default). No remote code. Contact: seo@neurise.io.