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    How to Write an AI Agent Job Description Before You Buy the Tool

    Published October 29, 2026 · Updated October 29, 2026
    By Carlos Boyd, AI consultant and systems practitioner

    Write the job first. Pick the tool second. Six lines and one named owner keep an AI role from drifting.

    Why the tool question comes too early

    AI conversations often start with a product name. Should we use ChatGPT? Should we try Claude? What is everyone else using?

    Those are fair questions. They are just early.

    The first question is about the work. What keeps repeating, and what kind of work is it? A task might need judgment, accuracy or just consistency. AI fits consistency best, and that is where a small team loses the most energy when nobody owns the step.

    One company already hires AI the way it hires people. On The AI Why podcast (August 6, 2026), OneDigital's chief product officer, Vinay Gidwaney, described an internal staffing process for AI coworkers. "Everything starts with a job description," he said. "So we write a job description for the AI."

    A small team can borrow the habit with one page.

    The six lines of an AI agent job description

    Here is the six-line template. Fill in each line for one workflow.

    LineThe question it answers
    PurposeWhat problem does this role solve?
    InputsWhat information can it use?
    OutputsWhat does it produce?
    BoundariesWhat may it never decide?
    OwnerWho checks the work?
    TestWhich real examples must it pass?

    A prompt asks for an answer. A role sits inside the business. It knows what starts it, what it can see, where it stops and who reviews the result.

    If a line is blank, the tool has to guess. When output drifts and nobody owns the review, people blame the model. Usually the job was never written down.

    Keep the job description in its own document, apart from any tool. Models change. When you switch, the rules, examples, boundaries and corrections come with you.

    Give the role an operating environment

    The operating environment says how the role runs inside your business. Write down five more things:

    ItemWhat to write down
    TriggerWhat event starts the role?
    AccessWhich records and tools can it read or change?
    EscalationWhat conditions send the work to a person?
    EvaluationWhich examples and checks decide the output is ready?
    CorrectionWhere does the owner record each fix?

    Here is what that looks like for a consultant's discovery-call follow-up. The trigger is a call marked complete. Access is the call notes and the approved follow-up templates, read only. Escalation is any mention of price, scope changes or a complaint. Evaluation is a few past follow-ups you were happy with. Correction is a running list the owner updates when a draft misses.

    The correction log matters most over time. Each fix the owner records stays with your business, whatever model runs the role next year.

    Start with a co-worker, not an agent

    Gidwaney sorts generative AI into three kinds of work, according to the same episode:

    • A co-worker helps a person think, prepare or review.
    • A builder produces an asset, such as a document, a presentation or software.
    • An agent carries out a task in the background, with or without a person in the loop.

    OneDigital started with co-workers. Gidwaney said most companies "do that in reverse order. They start with the agents." He added that the setup an agent needs, from clean data to deciding where people step in, is hard to get right.

    For a founder, coach or small agency, the safer first role helps a capable person do better work:

    • Draft the follow-up after a discovery call.
    • Flag missing details before a proposal goes out.
    • Check a client deliverable against your own style rules.

    A person still decides when something is unusual. That is the design, and it is how a role earns more responsibility. The episode's title names the same path for an AI coworker: intern, then apprentice, then full time.

    Decisions that stay with a person

    Some calls should not move to AI on a busy afternoon. Put these in the Boundaries line of every job description:

    • Promises to clients
    • Pricing exceptions
    • Complaints that could become disputes
    • Safety concerns
    • Sensitive personal information
    • Commitments the business can't keep

    AI can still help with each one. It can draft the reply, find what's missing and suggest the next step. The owner makes the call.

    Our tagline says it in four words: Automate Consistency, Not Decisions. AI should remove repetition, not responsibility.

    Should you treat AI like an employee?

    Harvard Business Review published research on May 6, 2026, titled "Research: Why You Shouldn't Treat AI Agents Like Employees," by Matthew Kropp, Julie Bedard, Emma Wiles, Megan Hsu and Lisa Krayer. HBR's published summary says some organizations are placing AI agents on org charts as employees. In a large-scale experiment, that human framing reduced individual accountability, increased unnecessary escalation, lowered review quality and left employees less sure of their roles, without improving adoption. The summary closes on redesigning workflows, roles and governance so "humans remain clearly accountable."

    We read that as a guide to which half of the idea to keep.

    Keep the parts that make work checkable: a written purpose, clear inputs and outputs, boundaries, a named owner and real examples the role must pass.

    Drop the parts that blur who is responsible: the human name, the box on the org chart and any sense that the tool answers for the result.

    A person owns the outcome. The job description makes their review quick enough to happen.

    Measure what the time went to

    "Hours saved" is the easiest number to report and the easiest to game. The OneDigital guests made the same point on the podcast. Set a target for hours saved with AI, one of them said, and "you're going to get a certain type of behavior out of that. People will cut corners."

    Ask what the team did with the time that came back:

    • Did a client get an answer the same day?
    • Did a proposal go out while the buyer was still deciding?
    • Did the team stop depending on one person to remember every detail?

    Pick one of those before the role goes live. Then check it after a month.

    A fill-in AI agent job description template

    Copy this for one weekly workflow.

    • Role name: (what the work is, not a human name)
    • Purpose:
    • Inputs:
    • Outputs:
    • Boundaries (never decides):
    • Owner:
    • Test (real examples it must pass):
    • Trigger:
    • Access (read / change):
    • Escalation (sends to a person when):
    • Evaluation (ready when):
    • Correction log location:
    • What should improve if it works:

    If you can't fill in Boundaries or Owner, hold off on the next tool. You would be choosing software before choosing the work.

    The bottom line

    Write the AI agent job description before you buy the tool. Six lines define the role and five more define how it runs. Start with a co-worker, keep promises, pricing and disputes with a person, and measure what the freed time produced.

    Common questions

    What is an AI agent job description? A short written role for one AI task. It states the purpose, inputs and outputs. It also names the decisions the AI may never make, the person who checks its work and the real examples it must pass before it takes on more.

    How is an AI agent job description different from a prompt? A prompt asks for one answer. A job description defines a role inside the business: what starts it, what records it can see, where it must stop and who reviews the result. The same job description can move to a new model when you switch tools.

    Should I start with an AI agent or an AI assistant? Start with an assistant, or what OneDigital's Vinay Gidwaney calls a co-worker: AI that helps a person think, prepare or review. Move to a background agent only after the role passes its tests and the owner trusts its output on real examples.

    Should AI agents be treated like employees? Borrow the structure, not the identity. Harvard Business Review research published May 6, 2026 found that treating AI agents as employees reduced individual accountability and lowered review quality. Keep the written role and the named human owner. Skip the human name and the org-chart slot.

    Sources

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