Today’s sourdough — Cambridge weather appropriate.
Cold rain outside, warm crust in here. Today’s sourdough is dark, chewy and properly nutty — baked at 4am while the rest of Cambridge was still pretending it was summer. ☕🍞
/ Mill Lane Bakery /
A Cambridge artisan bakery wanted social posts that actually sounded like them — without giving up another evening to writing captions. We trained an AI ghostwriter on their voice and let it draft a week at a time.
5 hrs
saved per week
writing & scheduling posts
3×
post frequency increase
across IG, FB & X
+47%
engagement rate
in the first 60 days
5 min
weekly approval session
from the owner
/ at a glance /
Mill Lane Bakery is a small artisan bakery in central Cambridge. Sophie, the owner, is up at 4am and on her feet until late afternoon. By the time the shop closes, social media is the last thing she wants to write — but it’s also exactly the channel that keeps regulars coming back. The result: posts were either rushed and off-brand, or didn’t happen at all.
/ the challenge /
Mill Lane already had a strong following on Instagram. The problem wasn’t reach — it was finding time to post. Sophie was spending around five hours every week writing captions, picking photos, and copy-pasting the same content (badly) across IG, Facebook, and X. Half the time she gave up and posted only to one channel.
/ the solution /
We didn’t build a generic post-generator. We built a focused agent that knows how Mill Lane talks, what Mill Lane sells, and when Mill Lane’s customers scroll. Sophie still has the final say — she just doesn’t have to write anything.
We pulled Sophie’s top-performing past posts, distilled the tone, and wrote a brand voice guide as the AI agent’s system prompt. Warm, slightly cheeky, never corporate.
Claude APIEach morning Sophie drops the day’s bakes (and any photos) into a single Airtable form. That’s the only manual step in the whole pipeline.
Airtablen8n picks up the daily feed and asks Claude to generate three versions of each post — tuned for Instagram (visual + emoji), Facebook (longer, story-led), and X (short, punchy).
n8n · Claude APIGenerated posts land in a clean Airtable view with a thumbs-up / edit option. Sophie scrolls through Monday morning over coffee and approves a week of content in five minutes.
AirtableApproved posts auto-push into Buffer at the optimal Cambridge engagement times for each platform. No more 2pm posts that nobody sees.
BufferBuffer publishes to Instagram, Facebook, and X simultaneously. Engagement data flows back into Airtable so the agent learns which formats land best for Mill Lane’s audience.
Instagram · Facebook · XWe were either posting badly or not at all. Now I sit down with a coffee on Monday morning, approve a week of posts in five minutes, and the whole feed runs itself. It actually sounds like us — that was the bit I didn’t expect.
/ tools used /