---
url: https://superduperai.co/library/length-follows-the-material/
title: Length follows the material: cut stammers and repeats, not thoughts
description: The decision rule for how long a film should be. A target length makes you stretch a thin day or chop a full one; the material decides, and the checklist says what may be removed.
category: editing
platforms: [youtube, any]
works_with: [claude-code, capcut, manual]
tags: [pacing, length, editing, rules, footage, decisions]
difficulty: beginner
verified: false
created: 2026-11-01
skill: video-edit
---

# Length follows the material: cut stammers and repeats, not thoughts

The decision rule for how long a film should be. A target length makes you stretch a thin day or chop a full one; the material decides, and the checklist says what may be removed.

## Prompt

```text
LENGTH, the decision checklist

1. Do not set a target length before reading the day as text. Set it after: how many scenes are there, and how long are they whole?
2. Allowed cuts: stammers, restarts, repeated sentences, filler at the ends of lines, dead air longer than {1.5} s where nothing happens, the second take of the same thing.
3. Not allowed: a thought cut in the middle, a lead-in removed to make a line land faster, a reaction trimmed to save a second, a scene removed because the film is 'already long'.
4. If the film is longer than you wanted: remove whole scenes, lowest stakes first, and keep the promise-payoff pairs. Never shave 10 percent off every scene.
5. If it is shorter: it is shorter. Do not add a montage of leftovers, do not slow down the cutaways, do not repeat the cold open at the end.
6. The test: does any line in the cut make less sense than it did raw? If yes, you cut a thought.
```

## Steps

1. Read the day as one text file and count the scenes worth keeping whole. That count times their natural length is the first estimate; it is usually right.
2. Apply the allowed cuts only, render, watch on a phone. Then decide whether to drop whole scenes, never whether to tighten all of them.
3. If a platform needs a shorter version, cut a separate one from the finished film (a trailer); do not shorten the film.

## Tips

- The urge to tighten comes from watching the raw footage ten times. A first viewer has seen it zero times and needs the lead-ins you are bored of.
- A 36-minute film and a 90-second trailer from the same day are two files from one master. Each has the length its job needs.

## Works with

- Claude Code: Runs as a skill or a prompt in the terminal; can read your files and write the result.
- CapCut / any editor: A manual recipe for any editor.
- By hand: No tool needed: a checklist or a technique.