Aletheia

Privacy notice

Last updated: September 6, 2026

Publisher: VesperRun
Product: Aletheia browser extension (Chrome Manifest V3)

Summary

Aletheia is a local-first browser extension. It helps users quiet likely summary panels and clutter on web pages using on-device heuristics and user-controlled rules. Aletheia does not collect or transmit user data to Aletheia-operated servers as part of its core design.

Data stored locally

Aletheia may store the following in chrome.storage.local on your device:

• default feature settings (clarity, summary panels, clutter);
• per-site choices (Clarify / Default / Allow);
• user-authored custom CSS selector rules;
• imported custom rules;
• UI preferences (for example, panel minimized state).

Data we do not collect (by design)

• user accounts or login profiles;
• browsing history sent to Aletheia-operated servers;
• page contents transmitted for remote analysis;
• remote AI classification of pages or people;
• sale of personal data or targeted advertising through the extension;
• analytics SDKs or product telemetry pipelines.

Where processing happens

Page inspection, layout changes, reading layout, and custom rules run locally in your browser. Aletheia is designed with no required backend service.

Your controls

• turn Aletheia on or off;
• set per-site behavior or use defaults;
• show any page as-is (session undo);
• add, remove, import, and export custom rules;
• clear extension data in Chrome or uninstall Aletheia.

Permissions (Chrome)

• storage — saves settings on this device.
• activeTab — reads the active tab hostname when you open the toolbar launcher.
• <all_urls> — lets the local content script run on pages you visit; not used to exfiltrate data.

Children

Aletheia is not directed to children. Parents and guardians should manage browser profiles and extensions for minors.

Terms of use (EULA)

By installing or using Aletheia, you agree to these terms. If you do not agree, do not install or use the extension.

License

Aletheia is provided to you for personal, non-commercial use unless the publisher offers a separate written license. You may not misrepresent Aletheia, resell access to it, or use it to violate applicable law or third-party terms (including website terms of service).

No professional advice

Aletheia is a reading and display helper. It does not provide legal, medical, financial, or security advice. It does not guarantee that any content is or is not AI-generated.

User responsibility

You control Aletheia’s settings and any custom rules you add. Over-broad selectors may hide important page content. You are responsible for reviewing what Aletheia changes and for using undo controls when needed.

What Aletheia is not

• not an ad blocker or paywall bypass tool;
• not a perfect “AI detector”;
• not a generative AI or deepfake system;
• not a surveillance or scoring product.

Disclaimer of warranties

Aletheia is provided “as is” and “as available” without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, and non-infringement. Sites change frequently; Aletheia may miss clutter or affect unexpected elements.

Limitation of liability

To the maximum extent permitted by law, the publisher shall not be liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, profits, or goodwill arising from use of Aletheia. Your remedy is to stop using the extension and remove it.

Changes

The publisher may update Aletheia and these terms. Material privacy changes should be reflected in the “Last updated” date above.

Governing law

These terms are intended to be governed by the laws of the State of Texas, without regard to conflict-of-law rules, except where mandatory consumer protections apply.

TDPSA alignment (Texas Data Privacy and Security Act)

TDPSA is Chapter 541, Texas Business & Commerce Code. This section describes how Aletheia’s design aligns with common consumer expectations—not a claim that TDPSA applies to every publisher or user.

• Transparency — this notice and in-extension Options describe local storage and behavior.
• Minimization — Aletheia stores settings and rules needed to function, not a cloud profile of your browsing.
• User control — reset site choices, delete rules, clear extension data, or uninstall.
• No sale model — the reference product is free; no personal data sale business model in the extension design.
• Consumer requests — if TDPSA applies to the publisher, contact the privacy email below. Often the practical response is that Aletheia does not hold a cloud copy of your settings; you may delete local data in Chrome.

Texas Attorney General — TDPSA materials (starting point): Texas Data Privacy and Security Act.

TRAIGA alignment (Texas Responsible AI Governance Act)

TRAIGA (Texas HB 149) addresses responsible AI governance. Aletheia is positioned as a client-side reading and decluttering utility, not a generative AI system.

What Aletheia is

• local DOM heuristics and user-defined CSS rules;
• conservative language (“likely clutter,” not “AI detected”);
• human-invoked reading layout and reversible controls.

What Aletheia is not designed to do

• generate deepfake or synthetic media;
• create sexually explicit synthetic depictions of real people;
• impersonate individuals or circumvent security;
• make autonomous high-risk decisions about people;
• perform remote AI inference on page content.

No software automatically “complies with AI laws.” Context matters. This disclosure explains product intent and limits.

Galvenais Rule (Aletheia adaptation)

Galvenais (galvenais — from Latvian galvenais, “chief”) is the VesperRun chief privacy-and-safety doctrine. Aletheia follows its principles alongside TDPSA and TRAIGA transparency expectations. This is doctrine alignment, not a legal certification.

Product truth: Aletheia should miss some clutter. Restraint is part of trust.

Publisher & contact

• Publisher / legal name: VesperRun
• Privacy & support email: aletheiaclarity@proton.me
• Mailing address: Not required for this free local extension
• Hosted policy URL (HTTPS): https://vesperrun.github.io/Aletheia-v1.0.9/privacy/

Source repository: github.com/VesperRun/Aletheia-v1.0.9