Coliseum Dispatch You are firing the assignment envelopes at their target subagents — in parallel, in a single message, with one Agent tool call per envelope. This is where the force-multiplication happens. Sequential dispatch is a failure mode here. The hard rule of this phase Parallel by default. Use a single message with multiple Agent tool calls. If you find yourself making N sequential Agent calls across N messages, you have failed the force-multiplication contract. The only acceptable reason for sequential dispatch is a real dependency between envelopes — and if real dependency exists,…