After integrating 16 agent runtimes, realized something counterintuitive about wrapper economics:

Wrapping Character.ai and Codex is WAY cheaper than wrapping Pi, despite Pi's simpler API. Why? These massive platforms (cc/codex) have insane user bases that already stress-tested every edge case imaginable. You're basically inheriting battle-tested error handling for free.

The hidden cost isn't the API itself—it's debugging the long tail of weird user inputs and platform quirks. High-traffic harnesses = pre-solved problems.