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        <title>Peter McCann Strain — Architecting the AI Coworker</title>
        <link>https://petermccannstrain.com/essays</link>
        <description>A 22-essay operating model for the AI coworker — what changes when models acquire tools, memory, authority, and consequences, and what a team needs in place before it can stand behind what the system does.</description>
        <lastBuildDate>Sat, 20 Jun 2026 06:39:36 GMT</lastBuildDate>
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        <copyright>© 2026 Peter McCann Strain</copyright>
        <item>
            <title><![CDATA[Essay 1: There Is No "It"]]></title>
            <link>https://petermccannstrain.com/essays/there-is-no-it</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Audit asks 'who approved this?' The only honest answer: 'the stack did.' The thing on the screen is not the thing being bought, trusted, governed or blamed. The deployed system is a stack.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 2: The Coworker Illusion]]></title>
            <link>https://petermccannstrain.com/essays/the-coworker-illusion</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA["The AI did it" is the sentence that hides the architecture. When a stack of distinct roles collapses into one fluent surface, a team mistakes a pleasant interface for an accountable system.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 3: Demo Is Not Deployment]]></title>
            <link>https://petermccannstrain.com/essays/demo-is-not-deployment</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Google lost $100 billion of market cap in one afternoon because one demo slide said the wrong thing.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 4: The Nine Layers Where Agents Break]]></title>
            <link>https://petermccannstrain.com/essays/the-nine-layers-where-agents-break</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA["The AI failed" is not a diagnosis. It is a way to learn nothing.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 5: The Reliability Equation]]></title>
            <link>https://petermccannstrain.com/essays/the-reliability-equation</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Same model, change containment, expected harm per claim drops 20x. Not the model.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 6: The Model Card Won't Save You]]></title>
            <link>https://petermccannstrain.com/essays/the-model-card-wont-save-you</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[OpenAI retired its own headline benchmark. Of the tasks it audited, 59.4% had flawed tests.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 7: The Model Cannot Mark Its Own Work]]></title>
            <link>https://petermccannstrain.com/essays/the-model-cannot-mark-its-own-work</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Asking the model to grade itself is a faster way to find what it already believes, not what is true.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 8: Helpful, Harmless, and Wrong]]></title>
            <link>https://petermccannstrain.com/essays/helpful-harmless-and-wrong</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[A model can be aligned, pass every release gate, and still leave nobody accountable.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 9: Tools Give Models Hands]]></title>
            <link>https://petermccannstrain.com/essays/tools-give-models-hands</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Once a model has tools, a wrong answer stops being words and becomes an action.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 10: The Supply Chain You Cannot See]]></title>
            <link>https://petermccannstrain.com/essays/the-supply-chain-you-cannot-see</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Installing an agent component is not a trust ceremony. It is an authority transfer.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 11: The Sentence That Owns the Agent]]></title>
            <link>https://petermccannstrain.com/essays/the-sentence-that-owns-the-agent</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[The sentence that hijacks an agent is a polite line in a document you trusted.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 12: The Cheapest Token Is the One You Never Generate]]></title>
            <link>https://petermccannstrain.com/essays/the-cheapest-token-is-the-one-you-never-generate</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Multi-agent work can burn ~15x a single chat. Cost is an authority design.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 13: What an Agent Remembers, and Cannot Forget]]></title>
            <link>https://petermccannstrain.com/essays/what-an-agent-remembers-and-cannot-forget</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[A customer asks to be forgotten. Has the agent forgotten them?]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 14: Agents Don't Know When To Stop]]></title>
            <link>https://petermccannstrain.com/essays/agents-dont-know-when-to-stop</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Most production AI failures are confident handoffs at the wrong moment.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 15: Show Me the Run]]></title>
            <link>https://petermccannstrain.com/essays/show-me-the-run</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[The vendor says the agent completed the task. You say: show me the run.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 16: The Dashboard Is Green. The Meaning Is Wrong.]]></title>
            <link>https://petermccannstrain.com/essays/the-dashboard-is-green-the-meaning-is-wrong</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Every check went green. The citations were perfectly formatted. They cited cases that do not exist.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 17: The Three Witnesses to a Run]]></title>
            <link>https://petermccannstrain.com/essays/the-three-witnesses-to-a-run</link>
            <guid isPermaLink="false">https://petermccannstrain.com/essays/the-three-witnesses-to-a-run</guid>
            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[A model says it followed policy. The action log says retrieval failed. Three witnesses, one run.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 18: When an Agent Acts, Who Acted?]]></title>
            <link>https://petermccannstrain.com/essays/when-an-agent-acts-who-acted</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[An agent bought the wrong shoes. The charge cleared. Who acted?]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 19: Compliance Is Not a PDF]]></title>
            <link>https://petermccannstrain.com/essays/compliance-is-not-a-pdf</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[A regulator asks what your agent did between two and three. The vendor sends a thumbs-up.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 20: You Cannot Benchmark a Coworker]]></title>
            <link>https://petermccannstrain.com/essays/you-cannot-benchmark-a-coworker</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[Two green slides say the eval passed. They measured the wrong thing.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 21: The Autonomy Ladder]]></title>
            <link>https://petermccannstrain.com/essays/the-autonomy-ladder</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[A weaker model with payment tools is more autonomous than a frontier model with none.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
        </item>
        <item>
            <title><![CDATA[Essay 22: Stop Delegating. Start Architecting.]]></title>
            <link>https://petermccannstrain.com/essays/stop-delegating-start-architecting</link>
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            <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[You are not delegating to a model. You are architecting a team.]]></description>
            <author>Peter McCann Strain</author>
            <category>Architecting the AI Coworker</category>
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