Dynamic circuits can generate long-range entanglement in constant depth, enabling low-depth primitives ranging from nontrivial state preparation to many-qubit entangling gates. Escaping the light-cone constraints of static unitary circuits, however, comes at a cost: these primitives typically require a number of mid-circuit measurements that scales with system size and that, together with feedforward latency, can introduce errors that degrade the long-range entanglement on which they rely. In this talk, I will show how this tension can be alleviated through an error-detection scheme that trades infidelity for a postselection overhead, with no additional ancillas and only constant gate depth. This framework unifies and upgrades a broad class of primitives, including fan-out gates, multi-qubit Pauli rotations, the preparation of W and higher-weight Dicke states, and certain non-normal matrix product states. I will close with a pair of experimental demonstrations on IBM Quantum hardware that illustrate the practical reach of the approach on present-day devices.