Seed and Hook Permissions
Creators choose the seed module at launch and can approve or revoke birth hooks after launch.
Integrations let an object birth use more than a plain wallet claim. A creator can use a seed module for custom randomness and can approve hooks for game, route, quest, frame, or any other action.
Seed module
The seed module is part of the collection's rule. It receives the ledger, owner, object id, owner index, source balance, interval, and caller-provided context.
function seedForBirth(
address ledger,
address owner,
uint256 objectId,
uint256 ownerIndex,
uint256 sourceBalance,
uint256 interval,
bytes calldata context
) external returns (uint256 seed, bytes32 birthPath);
Creators can use the default Mirage seed module or provide a custom module when the collection is created. The public app should show the seed module address because it affects object generation.
Birth hooks
A birth hook is a contract approved by the collection creator.
ledger.setBirthHook(hook, true);
ledger.setBirthHook(hook, false);
An approved hook can call:
ledger.claimFor(owner, amount, context);
The hook does not bypass soToken rules. The ledger still checks the owner's supported capacity before birthing objects.
Expected creator flow
The app should treat hooks as deliberate collection settings.
Live settings route:
/market/<ledgerAddress>/settings
Good UI patterns:
- A post-launch "Hooks" or "Birth Sources" page.
- Hook cards with
AuthorizeandRevokeactions. - Clear labels for recipient behavior, source-token requirements, and review status.
- A warning before approving custom hook contracts.
Current template categories are GameFi action, campaign/frame, route/swap, and custom developer hook. These are templates for reviewing and labeling hook behavior; a creator still authorizes a specific deployed hook address.
Avoid silent checkbox transactions. Hook permission changes affect who can create births for holders.
Revoking a hook
Revoking a hook stops future claimFor calls from that hook. It does not alter existing birth records or previously created objects.