Pi coding agent becomes automation layer

This is less agent magic than a pragmatic orchestration primitive: when a task can be expressed as read/write/bash plus a tight success loop, the agent often replaces glue code faster than a traditional pipeline. The likely first failure mode is reliability, then context management; cost and latency usually become painful only after retries and longer tool loops accumulate, and the ceiling is driven more by branching complexity and human oversight than by document count alone.