Support
Include your support id
Every session is assigned a short support id. When a panel does
not render, the text fallback includes it, like
(support id ab12cd34). Include that id in your message: it
lets the operator look up what your host application claimed it could
render at connect time, which resolves most rendering questions in one
step. The id points to session metadata only, never to your content.
Common questions
- The panel did not appear. Your host most likely does
not render MCP Apps; the Markdown fallback is the intended behavior, and
the notice names it honestly. The docs list which hosts render panels.
- A tool refused with a budget or busy message. Those
are per-session guardrails; the message states the cap and when to
retry.
- A confirm-gated tool asked for a grant. The
operator enabled the authorization gate; ask your sponsor for a grant id
and nonce and pass both with the call.