# Kling pipeline scene-length policy

Status: active pipeline rule
Captured: 2026-03-29

## Core decision
The pipeline treats **15 seconds as the maximum target length for a single scene**.

## Meaning of this rule
- A single scene should be generated as one clip, not reconstructed by chaining multiple shorter clips while pretending they are one continuous scene.
- Multi-clip chaining is still allowed when the purpose is to connect **different scenes** while preserving broader narrative/context continuity.
- In other words:
  - **single-scene continuity** -> solve inside one clip (up to 15s)
  - **cross-scene narrative continuity** -> can use multiple clips and linking logic

## Why this rule exists
Recent experiments showed:
- 15-second one-scene output quality was acceptable and strategically preferable
- chaining short clips as if they were one scene introduced quality drift and continuity ambiguity
- generated-last-frame chaining in particular is not suitable as the primary production approach for a single scene

## Operational consequences
### For one scene
- prefer one 15-second generation
- use reference/anchor controls inside that clip
- do not design the pipeline around stitching 3x short clips into a single-scene substitute

### For multiple scenes
- clip linking is still valid
- context continuity may still matter across scenes
- but those clips should be treated as separate scene units, not one hidden long take

## Pipeline interpretation
This rule does **not** mean “ignore continuity entirely.”
It means:
- stop using multi-clip chaining as the default answer for one scene
- keep continuity tooling for transitions between scenes when needed

## Practical default
- default scene duration ceiling: 15 seconds
- if a requested moment fits inside 15 seconds, generate it as one clip
- only split when there is a genuine scene boundary or narrative segment break