Perhaps you've heard the term Loop Engineering: instead of solving a problem by hand, you build a system, set a measurable goal, and let an agent k...
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The hard-stop rule is more than cost control: it makes the loop’s authority bounded and reviewable. I would pair it with an externally defined success check and a failure receipt—what changed, what was tested, and why the run stopped—so a retry cannot quietly become a second unobserved experiment.
Pitfall #1 and #3 are the ones that burn me when I run a solo agent. I keep a one-track loop with a hard stop after N tool steps OR when the expected value of continuing drops below a threshold — plus an explicit escalation list (payments, legal identity, irreversible deletes) the agent must not self-approve.
For #2 I treat "agent graded itself" as failed by default. Success criteria live outside the loop as a receipt: what changed, what was checked, and why the run stopped. Same spirit as agent A checking agent B, just with a dumb external checklist when I'm solo.
Curious whether Annie framed escalation policy as part of the hard-stop design, or if it stayed mostly in the token-cost framing.
The retry-toward-a-goal framing is clean until the goal itself is underspecified. Building workflow automation at viaSocket we hit this constantly: an agent retrying toward "task completed" will happily loop forever on a step that technically succeeded but did the wrong thing, because success and correctness aren't the same check. Did the video cover verifying the goal signal itself, not just detecting when to stop looping?
Failure #2 has a subtler version than the kindergartner: even with agent B grading agent A, if both share the same model and context shape, they share the same blind spots. Correlated graders are one grader with extra steps. The check that actually helps is a different kind of checker - a test suite, a type system, a replay - something whose failure modes don't correlate with the generator's.
And #1's hard stop deserves a second clause: the stop condition must be a value the loop itself reads, not an external kill switch. Otherwise you find out about the runaway from the bill.
Loop engineering is where most of my eval work lives, and the pitfall I keep seeing is teams scoring the final output without scoring the loop itself. Adding a step-efficiency axis and a recovery-behavior check to the rubric catches the loops that look healthy but are quietly burning tokens and latency.
The one about vague goals stuck with me the most, since make this better is basically an invitation to loop forever. Having a separate agent check the work also feels like such a simple fix that is easy to skip.
Great breakdown of the loop‑engineering traps—especially the hidden state‑drift issue, which I’ve also hit when scaling our data‑pipeline loops. In my recent project we mitigated that by injecting explicit version tags and automated sanity checks after each iteration. I’m curious, which monitoring framework have you found most effective for catching subtle regressions early?
what to keep/discard ; oldest first
retrieve the right turn ; drop the questions
say 'idk' ; policy LoRa
abstention ; impossible atm
what is false; Before: helps, yet only partial
the main issue with the Loop still the Detector, No detector no Loop and its just a chain trigger.
Which loop engineering pitfall is most commonly overlooked by developers, and why?