Part 2 · The Harness Around the Model

5 Patterns of Agent Deadlock

Parameter format errors / hallucinated tools / infinite recursion / insufficient info / API exceptions

THE QUESTION THIS PAGE ANSWERS

ANSWER FIRST

What is the key idea behind “5 Patterns of Agent Deadlock”?

Parameter format errors / hallucinated tools / infinite recursion / insufficient info / API exceptions

DECISION RULE

Make the claim earn its place. Use this page as a decision aid, not a definition to memorize. Connect the idea to one real task, one observable result, and one failure that would change your mind.

TRY NEXT

Write one question you could answer with evidence after trying this idea.

WATCH FOR

A conclusion that sounds complete but leaves the key assumption untested.

Five Failure Modes
Select a failure mode to view the animated simulation
Takeaway
Takeaway Agents are not infallible — they have 5 typical failure patterns. Good product design confronts these issues head-on and prepares a response for each: parameter validation, tool verification, loop detection, proactive clarification, and timeout fallbacks.

The algorithmic cost curve in “Five Failure Modes”

“Parameter format errors / hallucinated tools / infinite recursion / insufficient info / API exceptions” is not asking you to memorize steps. It trains you to spot repeated work: as the input grows, how many comparisons, moves, or recursive calls does the program perform?

Find repeated work before declaring something fast

Break “Parameter format errors / hallucinated tools / infinite recursion / insufficient info / API exceptions” into three questions: how input size changes, what each round does, and whether the next round can shrink its search space. Big-O describes growth, not an exact time on every machine; constants, memory, and data distribution still matter.

Theoretical optimum is not always practical optimum

When AI writes an algorithm, trace a small input by hand and benchmark progressively larger inputs. That turns “Parameter format errors / hallucinated tools / infinite recursion / insufficient info / API exceptions” from a slogan into a performance claim you can check.

Take the example one step further

The page first makes this point: “↑ Select a failure mode to view the animated simulation Takeaway Takeaway Agents are not infallible — they have 5 typical failure patterns. Good product design confronts these issues head-on and prepares a resp…”. Turn it into a small exercise rather than a sentence to memorize: write down the input, expected result, and the observation that would make you re-check the judgment.

Carry the judgment into the next situation

For a real task, find the repeated work first, ask how input size changes, and use a small benchmark to verify the theoretical judgment. Complexity should not become a label detached from the situation.

  • “Five Failure Modes”: ↑ Select a failure mode to view the animated simulation Takeaway Takeaway Agents are not infallible — they have 5 typical failure patterns. Good product design confronts these issues head-on and prepares a resp…

Finish with a small, reversible exercise: put the page's judgment into a real input, write the expected result, and name the signal that would make you stop and verify it.

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ARTICLE DISCUSSION

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Keep the idea that clicked, the question that stayed open, or a small note for the next learner.

Discussing 5 Patterns of Agent Deadlock The Harness Around the Model
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AM
Asha MorganContent editor
INSIGHTField note

I turned one judgment from this article into a small experiment I could run today. Knowing what to observe next is more useful than simply remembering the conclusion.

ARTICLE DISCUSSION7 helpful
LH
Lin HarperIndie developer
INSIGHTInsight

After reading this, I first looked for the conditions behind the idea instead of copying the method into a project. That order made the later trade-offs much clearer.

ARTICLE DISCUSSION5 helpful
KM
Kiki MooreProduct operations
QUESTIONQuestion

When this judgment reaches real work, which constraint should be added first? I am curious which step matters most between reading and the first practical attempt.

ARTICLE DISCUSSION4 helpful