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LIVE PROJECT Remote / UK E-commerce — Etsy prints

Design library in, live Etsy listings out — overnight.

An autonomous pipeline that designs, mocks up, prices and lists Etsy prints with no one touching Photoshop or the dashboard — and a self-healing agent that repairs silent failures before morning.

/ at a glance /

ClientUnicorePrints (our own shop)
LocationRemote / UK
IndustryEtsy digital prints
TypeInternal automation
TimelineBuilt Jun–Jul 2026
StatusLive & running

158

digital products listed on Etsy

Measured · internal

~10/day

listings drafted unattended (5/run × 2 runs)

Measured · internal

12

pipeline health signals auto-checked overnight

Measured · internal

134

automated tests guarding the self-healing layer

Measured · internal

/ the challenge /

Listing prints at volume is death by a thousand manual steps.

Hand-building mockups, writing titles and tags, assigning SKUs without collisions, rendering a listing video, uploading everything — and never re-listing a design already live. Doing that for tens of thousands of designs by hand is unsustainable, and any naive automation quietly rots the moment a folder is empty or a batch stalls.

×Manual Photoshop, SKU bookkeeping and uploads don’t scale past a handful a day
×Silent failures run for nights before anyone notices
×Duplicate listings are easy to create when SKUs get reused

/ what we built /

A pipeline that notices when it’s broken — and fixes itself.

01

E1 pipeline (n8n)

Twice-daily orchestrator: lists new designs, assigns the next SKU, classifies set vs single, caps the batch, then drives mockups, drafts and content downstream.

02

JSX Photoshop mockups

Batch ExtendScript generators drop each design into smart-object room scenes and export listing images, scoped per-SKU.

03

Curator

Selects which designs to promote from a ~26k-design library using bundle metadata, enforcing set-coherence and IP exclusion rules.

04

Composition-key dedup guard

Assigns each product a composition key and quarantines already-listed designs before n8n ever sees them.

05

Etsy API listing + publishing

Deterministic tools create drafts, verify SKUs via inventory read-back with retry, and publish behind hard gates.

06

Overnight medic + overseer

A continuous 22:00–10:00 tick that checks a dozen health signals, root-causes failures with a devil’s-advocate subagent, and repairs inside hard safety ceilings.

How it runs

1

Curator promotes chosen designs into the intake folder

2

Dedup guard quarantines anything already listed

3

E1 assigns the next SKU and classifies single vs set

4

Photoshop renders room-scene mockups; ffmpeg builds a matching video

5

Etsy draft is created, Claude writes the copy, SKU verified

6

Overseer heals failures and publishes drafts that clear the gates

Finished, priced, video-equipped listings — you only triage keep or discard

/ the moment it clicks /

A silent NO_IMAGES loop or a stalled Photoshop batch used to run unnoticed for nights. Now the overseer catches and repairs it before morning — spending nothing beyond a capped publish budget, deleting nothing, drafts-only, with per-run blast-radius caps.

/ tech stack /

Built to be owned.

n8n Etsy API v3 Photoshop (JSX) Python ffmpeg Claude SQLite CC-cron

Skills shown

n8n orchestration Etsy API integration Photoshop scripting Autonomous agents Dedup / idempotency Video generation Test-guarded automation

/ the takeaway /

A real, unattended business pipeline: design library in, live Etsy listings out — with a self-healing agent layer that catches and repairs silent failures overnight. Proof that ReitTech ships autonomous automation it trusts on its own revenue.

Proof: The live UnicorePrints Etsy shop plus the working codebase — a 72-commit pipeline repo and a 36-commit self-healing repo, 134 passing tests.

/ next case study / AlmightyBrain
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