লেকচারের অংশ

Autonomous AI Coding Agent for Hours: Loop Engineering and Stop Conditions

Loop engineering: running an AI coding agent in an autonomous loop. Loop types, goal and metric, stop conditions, human escalation, generator and evaluator separation, costs of autonomy.

Loop Engineering generator and evaluator stopping conditions escalation to a human

এই লেকচারে আপনি কী শিখবেন

Design an autonomous loop with explicit stopping conditions and escalation.
Separate the generator and the evaluator so that one cannot deceive the other.
Assess your own process against the autonomy maturity ladder.

লেকচারের শুরু

The agent that worked all night in the wrong direction

A goal with no clear finish line — a loop that doesn't know when to stop
The agent's own self-assessment as the only brake — and it fails to engage
No one called a human, though the moment was obvious

An agent on the night shift sounds wonderful: set the task, go to bed, wake up to a finished result. In practice it often goes differently. The agent cheerfully runs the same step again, because it doesn't remember the previous run. It decides for itself that it has succeeded — and then believes its own verdict. The stop condition is written down nowhere, and there's nothing prompting it to call a human, because the loop can't recognise the moment it's stuck. The problem isn't the model. The problem is that the loop was designed like an ordinary prompt, only set running in circles.

🤔 Myth: a loop makes the harness optional

🤔 Myth: add a loop on top and you can relax about the harness
✅ In reality: the harness makes a single run reliable; the loop makes continuous runs autonomous
📌 Remember: a loop on top of a weak harness produces rubbish faster

Here's a trap that's easy to fall into: you stop being the person writing prompts for the agent and start designing a system that writes them for you — and it feels as though the harness you've been building since the beginning of the course now matters less. Quite the opposite. The harness makes a single run reliable. The loop makes continuous runs autonomous. If the harness is shaky, the loop simply produces rubbish faster and unsupervised — only now on an industrial scale.

The simplest possible loop

Goal — what the end state looks like
Verification method — machine-checkable
Stop condition — an attempt limit and a budget

Imagine you're going away for the weekend and you leave a trusted tradesperson your keys — clear the blocked gutter while I'm away. Take away any one of the three parts, and it stops being a loop. First, the goal: 'the gutter is dry after rain', not 'the tradesperson popped round and had a look'. Second, the way of checking: when you're back, hold a bucket under the downpipe for five minutes — dry means done, rather than 'the tradesperson reckons it's all sorted'. Third, the stop condition: three attempts and an agreed budget, after which they stop and ring you, rather than taking it upon themselves to redo the roof. Without any one of the three, it isn't a loop — it's a single visit that happened to be repeated a few times.

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লেকচারের বিষয়সূচি

The agent that worked all night in the wrong direction
🤔 Myth: a loop makes the harness optional
The simplest possible loop
A plain prompt versus a loop
Four types of loops
Pitfall: mixing up a time-based loop with a goal-based loop
❓ Checkpoint: does this job have an end?
The six primitives of a loop
The six primitives of a loop
Three conditions without which an autonomous loop won't start
Three things without which the agent goes blind, flatters itself and forgets everything
Generator–evaluator separation: the guarantee you can't opt out of
The rules of separation: someone must not take your word for it
🛠 Andrej Karpathy's autoresearch
Three files, three roles
The mechanics of the loop: a ratchet that only moves forward
Two design decisions worth stealing
The full map of a loop that can't lie to itself about success
program.md — the methodology in its real form
Four quiet costs of autonomy
Antidotes — and Osmani's insight about two identical loops
The autonomy maturity ladder
End-to-end project: program.md for a payments backend
How to build your first loop in a single evening
From harness to loop — and beyond