Fix Inkbox Unsupported redirect_uri on Grok Bot iOS

On Grok Bot iOS, the Inkbox catalog connect card can stop before OAuth with Couldn’t start sign-in: Unsupported redirect_uri. MCP status stays needsAuth for user-Inkbox (plugin id 57102943). Cursor staff (mohitjain) on Inkbox connect card fails with Unsupported redirect_uri said how to work around it when Inkbox is already authorized on desktop.

Prefer the desktop identity

1. Confirm Inkbox was connected on Mac or Windows for the same Cursor account (shared connector account default).
2. On iPhone, do not tap Connect on the Inkbox card when it shows Unsupported redirect_uri.
3. Ask the Bot to use an Inkbox tool, or fully close and reopen the app, so it picks up the desktop identity.

Staff’s example: the identity authorized on desktop (their @solly-agent account) should carry to the phone for the shared default Inkbox connector.

If tools still fail on iOS

1. Retry asking for an Inkbox action after a full app quit/reopen.
2. Keep using desktop for Inkbox auth and heavy SMS/iMessage work until staff posts that the iOS connect path works on its own.
3. Leave a short note on the staff thread if tools still fail after the desktop identity is present — staff said they are tracking the mobile connect flow separately.

Pitfalls

• Tapping Connect again on iOS for this symptom — the card never starts OAuth while redirect_uri is rejected.
• Treating Unsupported redirect_uri as a wrong Inkbox password or a broken desktop auth — staff put the failure on the mobile connect flow.
• Inventing a custom redirect URI or a hand-added MCP to “fix” the catalog plugin — not what staff recommended.