Deliberate capture
Inspect selected text, article text or a pasted draft only when you ask the extension to run.
AI content toolsfrom Opace Chrome extension · Version 1.0.0
Opace AI Content Integrity for Chrome
Inspect selected page text or a pasted draft with named checks, protected-content review and hash-only receipts. The extension uses no host permissions, remote code or analytics.
SourceExact text and protected factsHeld in memory for this run
SignalsNamed checks with limitsNo universal authorship score
Watermark scanKnown keysReal SynthID mathematics; Anthropic production keys stay private
01 / Current release state
Submission candidate 1.0.0
Local Chrome Web Store checks passed
The exact Chrome Web Store package, privacy disclosures, listing copy and genuine screenshots passed local independent review. It has not been submitted to the Chrome Web Store.
02 / Product scope
Deliberate browser capture with packaged local checks
This extension does not request permanent access to the sites you visit. It waits for selected text, an article capture or a pasted draft supplied through its controls, then runs the packaged checks in a local Worker. A receipt records methods and hashes without retaining the inspected copy by default.
Local Worker checks
Unicode, lookalike, writing-pattern and protected-content checks run inside the packaged extension.
Hash-only receipts
Export a method record without silently retaining the inspected draft.
03 / Release evidence
Chrome package, permissions and interaction checks
Supported Chrome versions
The exact package has been exercised in the declared minimum Chrome version and the current Chrome for Testing release.
Privacy and permissions
Package inspection confirms no host permissions, remote code, analytics or undeclared network route.
Rendered interaction
Keyboard, narrow viewport, service-worker restart, storage clearing and accessibility checks are included in the release gate.
04 / Requirements and limits
Before installing the Chrome extension
Confirm the supported Chrome version and remember that restricted browser pages cannot expose their content to an extension. The no-host-permission model is deliberate: when a page cannot be captured, paste the text into the extension rather than granting broader website access.
- Google Chrome 145 or later is the declared minimum for version 1.0.0.
- Restricted browser pages cannot expose their content to an extension. Paste text into the extension instead.
- The official Anthropic production watermark method remains unavailable and is reported as unsupported.
05 / Frequently asked questions
Chrome extension questions.
Does the extension read every page I visit?
No. The version 1.0.0 submission candidate has no host permissions. It inspects text you deliberately select, capture or paste through its own controls.
Does it send page text to Opace?
No. The named checks run in the packaged extension. The candidate has no analytics, remote code or content-bearing network route.
Why is the Chrome Web Store link not shown yet?
Version 1.0.0 is prepared for Chrome Web Store review. The store link will appear only after Google approves the listing, so this page cannot direct you to an unapproved or older build.
Where should I report a problem?
Use the Opace contact page and include the product version, platform version, expected behaviour and the smallest safe reproduction. Do not include draft text, authentication tokens, personal data or customer information. Contact Opace.
Created by Opace Digital Agency
Need help putting content checks to work?
Opace designs practical AI and publishing workflows for organisations in Birmingham, across the UK and internationally.
Chrome extension version 1.0.0
Install after Google approves the listing.
Opace will add the verified Chrome Web Store link here after approval. Until then, this page documents the exact product scope, privacy position and release limits without offering an unreviewed download.