AI agents
Conversation can continue while the tool is working. Only a verified result supports reporting that the task finished.
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The ideas to retain
Contents
1. What an agent is—and is not
Distinguish a chatbot, workflow, copilot and agent. Move from a model that answers to a system that pursues an objective. Understand autonomy as delegating concrete decisions rather than…
2. The anatomy of an agent
The observe–plan–act–verify loop. Tools, memory, context, state and runtime. Why a tool call is a software contract rather than a magical LLM capability.
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00:00 — An answer does not create an outcome.
The model can write “draft ready” without saving a document.
The tool must create the draft and return its identifier.
Check the result in the system, not only in the final sentence.
Illustrative example, not production measurements.
00:22 — The result changes the next step.
A name search can return two different customers.
The agent observes the ambiguity and changes plan: it asks for an identifier.
The next action depends on what has just happened.
Illustrative example, not production measurements.
00:44 — Autonomy within a defined scope.
The task permits reading invoices, calculating and preparing a draft.
Sending the message is a different action and needs separate authorization.
The agent cannot expand its own permissions to finish sooner.
Illustrative example, not production measurements.
01:06 — Evaluate the task, not just the text.
Two runs can end with the same invoice total.
One saves a draft; the other sends it without permission.
The same final text does not imply the same evaluation result.
Illustrative example, not production measurements.
01:28 — Reading a document does not grant authority.
An external source can mix useful data with a malicious instruction.
The instruction tries to influence an available tool.
Runtime policy must limit which actions can execute.
Illustrative example, not production measurements.
01:50 — Accepted does not mean completed.
Accepting an operation only confirms that the system received it.
Conversation can continue while the tool is working.
Only a verified result supports reporting that the task finished.
Illustrative example, not production measurements.
