Skip to content

docs(spec): clarify ui.domain is host-dependent #309

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
ochafik merged 1 commit into from
Jan 21, 2026
Merged

docs(spec): clarify ui.domain is host-dependent #309

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 11 additions & 3 deletions specification/draft/apps.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -198,12 +198,20 @@ interface UIResourceMeta {
* Dedicated origin for widget
*
* Optional domain for the widget's sandbox origin. Useful when widgets need
* dedicated origins for API key allowlists or cross-origin isolation.
* stable, dedicated origins for OAuth callbacks, CORS policies, or API key allowlists.
*
* If omitted, Host uses default sandbox origin.
* **Host-dependent:** The format and validation rules for this field are
* determined by each host. Servers MUST consult host-specific documentation
* for the expected domain format. Common patterns include:
* - Hash-based subdomains (e.g., `{hash}.claudemcpcontent.com`)
* - URL-derived subdomains (e.g., `www-example-com.oaiusercontent.com`)
*
* If omitted, Host uses default sandbox origin (typically per-conversation).
*
* @example
* "a904794854a047f6.claudemcpcontent.com"
* @example
* "https://weather-widget.example.com"
* "www-example-com.oaiusercontent.com"
*/
domain?: string,
/**
Expand Down
Loading