"A generated image with no record of where it came from is a mystery you'll have to solve later. Record the lineage now, while you still know the answer."
The Orphan File Problem
Generate enough images and you accumulate a folder of beautiful results you can no longer explain. Which prompt made this one? What seed? Was it the SDXL model or the FLUX one? What was it refining? A month later these are unanswerable, and a result you can't reproduce or trace is a result you can't build on. The orphan file is the default outcome of generation unless you fight it deliberately.
Lineage: Every Artifact Knows Its Origin
The discipline is that every generated artifact carries its full chain of provenance, recorded at creation time. The chain reaches all the way back: which workspace and conversation it belongs to, which Photoshop document and which source revision it came from, the crop it was refining, the job that produced it, the model, the prompt and settings, and the seed. Given any image, you can answer 'where did this come from and how do I make it again?' — because the answer was recorded the moment the image existed.
Why Lineage and Reproducibility Are the Same Thing
Lineage isn't just record-keeping nostalgia — it's what makes a result reproducible. If you recorded the model, prompt, settings, and seed, you can regenerate the exact image, or generate a deliberate variation of it. Without those, every good result is a lucky accident you can't repeat. Lineage turns 'I got a great image once' into 'I can get this image, and ten near-variants, on demand.' Traceability backward is reproducibility forward.
The Non-Destructive Partner Principle
Lineage pairs with non-destructive insertion. When a refined result goes back into Photoshop, it lands as a new layer or group above the original — never overwriting what was there. The original is untouched; the artist can blend, mask, transform, or discard the result by hand. Combined with lineage, this means nothing is ever lost and nothing is ever a black-box mutation: the new thing is additive, named with its origin, and fully reversible.