cosmos by polarity lab by Polarity Lab
Ships meaningful pages from your browser history into your cosmos graph. Local filtering, no analytics, single endpoint.
ExperimentalExperimental
Extension Metadata
About this extension
Initial release. WebExtension that ships meaningful page history to https://cosmos.polarity-lab.com, the user's own cosmos graph. Filtering runs client-side via shared/filter-rules.json(navigational noise, the user's own domains, search-result URLs, untitled tabs are all dropped before the network call). Hourly chrome.alarms sync, with a one-week lookback on first install. Per-page payload is URL, title, hostname, last-visit timestamp, visit count, and the static string "web" as source. No page bodies, cookies, form data, or request headers are
transmitted. The cosmos MCP key lives in chrome.storage.local and is
sent only as the X-MCP-Key header to cosmos.polarity-lab.com.
transmitted. The cosmos MCP key lives in chrome.storage.local and is
sent only as the X-MCP-Key header to cosmos.polarity-lab.com.
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access browsing history
Optional permissions:
- Access your data for cosmos.polarity-lab.com
Required data collection, according to the developer:
- Browsing activity
More information
- Add-on Links
- Version
- 0.1.5
- Size
- 23.09 KB
- Last updated
- 14 days ago (May 21, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection