Regulated issuers need a way to comply with court orders, recover funds sent by mistake and keep tokens away from addresses they are not allowed to serve. If those powers live in a separate system, the token stops making sense the moment it leaves that system.
Gleo's issuance contracts put the controls in the token itself. An issuer chooses, at creation, whether holders need approval, whether balances can be frozen and whether tokens can be clawed back. Those choices are visible on-chain to every holder before they accept the asset.
Limits on the issuer
A control that can be switched on later is a control nobody can rely on being off. Our draft makes each flag one-way: an issuer can give up a power, never add one after issuance. Every use of a control emits an event that explorers can show.
You can try the issuer console now in practice mode. The contract design is open for review before any deployment.