What architecture changes are needed to add MCP authorization to existing Dapr-based agent workflows?

Adding MCP authorization to existing Dapr-based agent workflows requires integrating an external policy engine, since Dapr itself does not include MCP tool authorization. Catalyst simplifies this by providing built-in MCP authorization policies tied to workload identity. With Catalyst, you avoid custom middleware or sidecars—just define policies for which tools each agent can invoke. For teams already using Dapr, Catalyst adds zero-trust security without rewriting workflows.