Most advice about outlining splits writers into two tribes: planners who map every scene before they write a word, and discovery writers who follow the story wherever it leads. Both camps are usually arguing about the wrong thing. The real question isn't whether to outline, but how much certainty your story needs before it can survive the act of being written.
Planners over-outline because they're afraid of wasting words. Discovery writers avoid outlines because they're afraid of killing the one thing that makes drafting feel alive — not knowing exactly what happens next. Both fears are reasonable. The fix isn't choosing a side; it's outlining only the parts of your story that genuinely need to be fixed in advance, and leaving the rest open.
Pick three to five moments your story cannot work without — the inciting incident, a midpoint reversal, the climax, maybe one major betrayal or revelation. Write one sentence for each. These are your lighthouses: fixed points you can see from anywhere in the draft, even when you're lost in a scene that's gone sideways.
Between lighthouses, write nothing more than a loose list of "things that probably happen." Not full scenes — just enough to remind future-you what this stretch of story is for. If a better idea shows up while drafting, the lighthouses stay put, but everything between them is allowed to change.
A one-line plot outline tells you what happens. It says nothing about who the chapter is happening to. Before drafting a chapter, it's worth answering one question: what does this character want right now, and what are they afraid will happen if they don't get it? That single sentence will generate more usable scene material than a paragraph of plot beats.
A useful rule: if you can answer "what happens at the lighthouses" and "what does my protagonist want in the next chapter," you have enough. Anything more detailed than that is usually procrastination dressed up as preparation — and it's often where outlines start working against discovery instead of protecting it.
Try it the next time you sit down to plan: write your lighthouses, write one want-and-fear sentence for your next chapter, and then close the outline document. IARobo's Novel Generator can hold the full chapter map for you, so you're free to keep your own notes this loose.
Want to put this into practice? Open IARobo and try it in the Novel Generator, Poetry Studio or Character Creator.