Effective date: 2026-04-22
PromptCast is a Chrome extension that lets a user send one prompt to multiple supported AI chat tabs. This policy describes what data the extension handles, where that data is stored, and how it is used.
## What PromptCast processes
PromptCast processes only the data needed to provide its core feature:
- Prompt text that the user types into the extension popup
- The list of supported target platforms the user selects
- Local settings such as language, auto-open, and new-session preferences
- Send history records stored locally for replay and retry
- Limited page state from supported AI chat tabs, such as whether an input box, send button, login notice, busy state, or error state is present
- Supported tab metadata needed to target the correct browser tab, such as the tab URL and last accessed timestamp
## How the data is used
PromptCast uses this data only to:
- Show the popup UI and persist the user's settings
- Match supported AI tabs that are already open in the browser
- Inject packaged local content scripts into user-selected supported tabs
- Fill the selected site's prompt input box and trigger the site's send action after the user clicks Send
- Show send progress, save local history, and support retry/replay
## Where the data is stored
PromptCast stores settings, prompt drafts, and send history in chrome.storage.local on the user's device.
PromptCast does not send this stored data to a PromptCast server because PromptCast does not operate a backend service for prompt forwarding, sync, analytics, or telemetry.