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The Iteration Loop: How to Refine Prompts Until They Actually Work
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The Iteration Loop: How to Refine Prompts Until They Actually Work

Most people treat prompting like a vending machine — one press, one result. The people who get genuinely good output treat it like a conversation. Here's the method.

January 14, 20267 min read

Here's a scenario that happens constantly: someone gets a mediocre response from an AI, decides the tool doesn't work for their use case, and goes back to doing whatever they were doing before.

What they were actually experiencing wasn't a bad tool. It was a first draft.

The single biggest difference I've noticed between people who get exceptional AI output and people who consistently get mediocre output isn't the tools they use, isn't their technical knowledge, and isn't the length of their prompts. It's whether they iterate.

This is the loop. Learn it, and almost everything else gets better.


Why the First Response Is Almost Never the Best One

Think about how you write a document.

You don't sit down and produce the final version in one go. You draft, you review, you revise. You figure out what you're actually trying to say by writing a version of it. The act of seeing it externalized shows you what's wrong with it.

Prompting works the same way, except the loop is faster.

Your first prompt is a hypothesis: "I think if I ask for X like this, I'll get something useful." The response shows you whether your hypothesis was right. If it wasn't, you update and try again. The model keeps the conversation context, so each iteration builds on what came before.

People who treat each prompt as a standalone transaction miss this completely. The conversation history is a feature. Use it.


The Five-Move Iteration Toolkit

When a response isn't what you wanted, most people try one of two things: ask the same question again (doesn't help) or write a completely different prompt from scratch (sometimes helps, often loses context).

There are actually five distinct ways to iterate, each for a different type of problem:


Move 1: Point At What's Wrong

The most direct approach. Tell the model exactly which part isn't working and what you need instead.

"The tone is too formal — it reads like a corporate press release. Rewrite it in plain, conversational language."

"The structure is off. I wanted the problem first, then the solution, then the evidence. Right now you've given me solution first."

"This is too long. Cut it by half without losing the main argument."

This works when you can see the problem clearly. You don't need to reframe the entire request — you just need to name the specific issue.


Move 2: Give It a Comparison

Sometimes "too formal" or "better examples" is hard to define. A comparison does what words can't.

"Here's an example of the tone I want: [paste example]. Now rewrite your response to match that tone."

"Your answer sounded like an academic paper. Here's how I'd explain this to a friend over coffee: [paste example]. Do it like that."

"Here's a competitor's version of this: [paste]. Mine needs to feel more personal and less like it was written by committee."

The model doesn't need you to articulate the aesthetic difference. It can see it from the example.


Move 3: Add Missing Context

A lot of mediocre first responses are just the model working without information it needed. Ask yourself: what does it not know that would change this?

"I forgot to mention: this is for a technical audience that already knows the basics. Redo it assuming they're experts."

"Relevant context I should have included: we're a bootstrapped company, not VC-funded. This changes the financial advice."

"I'm going to paste a sample of my writing below. Use this to match my voice in the rewrite: [paste]"


Move 4: Constrain the Solution Space

Sometimes the response is the right general direction but too unconstrained. Adding guardrails focuses it.

"Same thing, but cut every sentence that doesn't directly support the main argument."

"Redo this but use no bullet points. Write it as flowing prose."

"Give me the same ideas but expressed in three sentences maximum."

"Remove every hedge — no 'it's worth considering' or 'keep in mind that.' Just say the thing directly."

Constraints force the model to make harder choices, and harder choices usually produce better output.


Move 5: Ask the Model What's Missing

This one is underused: just ask the model to evaluate its own response.

"What's the weakest part of what you just wrote? How would you improve it?"

"Does this response actually answer what I asked? What parts are incomplete or off?"

"If a critic read this, what would they say is wrong with it?"

Models are surprisingly good at identifying gaps in their own output when asked explicitly. They'll often flag exactly the thing you were about to flag yourself — sometimes things you hadn't noticed.


Putting It Together: A Real Example

Here's what this looks like in practice. I'll trace an actual iteration sequence.

Initial prompt:

"Write an introduction for a blog post about why most New Year's resolutions fail."

First response: A generic paragraph about good intentions and lack of follow-through. Bland. Reads like a thousand other posts on this topic.

Move 1 (point at the problem):

"This is too generic — it's the expected take on this topic. I want an opening that's more surprising. Lead with something counterintuitive."

Second response: Better. Leads with the idea that the problem isn't motivation but rather the time of year. More interesting, but the sentences are too long and ponderous.

Move 1 again (different problem):

"Good direction. Now cut the sentence length in half. More punchy. Less explanation."

Third response: Much tighter. Now the issue is it lost the hook in the editing.

Move 3 (add context):

"Good, but I lost the surprising opening. Here's a blog post I wrote last year that has the kind of hook I want: [paste]. Use that as a rhythm reference and bring the counterintuitive point back."

Fourth response: This one works. Three minutes of conversation instead of one shot, and the output is something I'd actually publish.

That's the loop. It's not complicated. It just requires not giving up after the first draft.


A Few Iteration Anti-Patterns

Asking the same question twice — If the first response didn't work, the second identical prompt won't either. You need to give the model new information or a new constraint.

Over-explaining in every iteration — You don't need to re-paste all the context in each follow-up. The model retains the conversation. Just describe the change you want.

Accepting "slightly better" — Iterate until you get something genuinely useful, not just an incremental improvement. "Slightly better bad" is still bad.

Forgetting what you were trying to accomplish — After 4-5 iterations, it's easy to optimize for something that's no longer the point. Occasionally re-read your original request to make sure the iterative changes are still serving the original goal.


The Conversation Is Your Friend

Every time you provide feedback, you're teaching the model what you want. By the fourth or fifth iteration, it usually has a rich enough model of your preferences that its suggestions start anticipating them.

This is actually one of the strongest arguments for working in long conversations rather than starting fresh every time. You've built up a shared context that makes every subsequent interaction more efficient.

The best prompt isn't always the most perfectly crafted first message. Sometimes it's a decent first message followed by three sharp pieces of feedback.


The iteration mindset becomes especially powerful when you're running complex, multi-step tasks. The Advanced Track covers prompt chaining — structuring tasks so each step builds productively on the last.


Want to go deeper?

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