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AI controls architecture

Short, opinionated essays on AI controls, agent systems, and governance. The archive is the evidence: accumulated arguments, not a pitch.

407 essays Terry Li Financial services
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  • The Work Behind the Work

    Coordination cost reveals valuable AI workflows, but only cash conversion and competitive durability make them valuable businesses.

  • The best idea I didn't adopt

    Good and redundant are not opposites — they're the most common combination.

  • The Program Is the Plan

    For many agent workflows, the right abstraction is not another tool call. It is a bounded program over small primitives.

  • A Skill Is Not a Prompt

    The useful unit in agent systems is not a better instruction. It is a tested capability package: judgment, code, checks, routing, and boundaries.

  • The Model Is Not the Unit of Return

    Model revenue is not customer return. The economic and risk unit is the harness that turns model output into accountable work.

  • After the Harness

    Once model companies supply the generic agent harness, the valuable work moves into workflow design, human intervention, domain data, and the definition of good work.

  • The SOP Is the Product

    Enterprise AI stops being a chatbot when the operating procedure becomes the thing the system can execute, inspect, and improve.

  • The Agent Is the Trace

    Long-running agents are not defined by the model call. They are defined by the state, rules, tools, failures, and corrections that survive it.