The pull request nobody could review
An agent's 3,100-line pull request passed every test and was approved in 25 minutes. It had quietly changed how money rounds. Why AI-DLC caps the unit of work.
Field notes
Anonymised lessons from real builds. Short, specific, dated.
The framework behind this pillar: Agentic in Production.
Ten thousand runs a day changes the price
An agent that cost cents per run in the pilot cost far more per month at scale. Routing, caching and a budget ceiling fixed it; the ceiling mattered most.
The agent that could not say no
A support agent with no refusal path agreed to everything. The fix took an afternoon; the decision to write the refusal list should have been made on day one.
The evaluation set that measured the wrong thing
A document agent scored 94 percent on its evaluation set and failed in production. The set had been written by the team that built the agent.