PRACTICAL FIELD GUIDE

Owner policies are not organization membership rules

A single-owner policy does not express arbitrary team membership or organization roles. Multi-user collaboration needs an explicit authorization design beyond naming an organization_id column.

MCPBackend editorial team · · Examples are illustrative

Put it into practice

  1. Define which members can read or modify each organization's records.
  2. Determine whether supported policy modes fit or whether a trusted application server must enforce membership.
  3. Test cross-organization access and membership removal at every relevant endpoint.

What this looks like

ILLUSTRATIVE EXAMPLE

Several users should share a client workspace, but owner mode only recognizes one row owner. A custom membership layer may be necessary.

A boundary to keep clear

Do not advertise organization-level isolation merely because every row stores an organization ID.

MCPBackend context

MCPBackend row policies apply to anonymous callers and end-user tokens. Machine API keys bypass those row policies and are instead constrained by their own table permissions. Owner mode is based on the calling user's identity; it is not an organization-membership or arbitrary custom-policy engine.

Take the next step

Inspect the current project contract, try the change with disposable data, and verify the result through the same credentials your app will use. Record the expected response and one denied-access case before release.

Sources and further reading

These references explain the underlying protocols and design principles. For supported MCPBackend operations and exact request shapes, inspect your project’s generated API contract.