01 - Embed
Inside your GTM
Senior operators inside your GTM: marketing, automations, revenue & BI, AI search. We ship with your team, not decks at it. Every engagement ends with working machinery you keep.
Sandcastle Labs · Denver, CO
Embedded leadership. Machinery you keep.
Sandcastle Labs is an agency of senior GTM operators who embed with your team: marketing, automations, revenue & BI, AI search. We build professional-grade agents to do the work, and everything we build stays yours when we leave. Collimer, our AI-visibility agent, is the first.
Three things we do.
02 - Build
Professional-grade agents
Professional-grade agents and custom software. Deep, reliable, scorecarded. Not a skill someone built on a Friday. Collimer, our AI-visibility agent, is the first that became a product, live at collimer.com.
03 - Publish
Open work, real numbers
The numbers, the failures, the build logs, nulls included. Open work is how we earn trust. Audit us before you ever email.
Active arcs
Stories with an ending question.
Each arc is a bounded story with a defined start, middle, and ending question. Posts inside an arc come from one or more series. Subscribe to the question you actually care about.
See all arcs →-
01 - active
Collimer Season 1
Opens with the first Collimer build logs, before the product had a public name. Establishes the bet, the question, and the season's stakes. Subsequent posts track the build through to the collimer.com launch and beyond.
Ending question
Did our bet on the GEO space hold up after first contact with the market?
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02 - active
The Unattended Studio
Founding 100 Days ended with the studio finished building itself. This arc is what happened next: the machinery it built kept reporting success while quietly doing nothing, and the work of the season is finding out which parts can actually be trusted to run unattended.
Ending question
Can a studio run on machinery it built itself, without someone watching it every day?
Our products
Sandcastles in flight
Real products, built from client work and run in public. Each one does one job completely, carries a build log on this site, and ships under its own name.
01 - Build
Collimer
LiveA GEO recommendation engine. Clear, actionable strategies to help your business be found by agents and humans alike. Our first sandcastle, live now at collimer.com.
Visit collimer.com →
Recent news
Latest from the chronicle.
Read everything →-
Build log
The Pricing Page Said Yes Before the Backend Did
Collimer's new pricing page promises unlimited seats. The code enforcing seat limits hasn't caught up yet, and the PR that shipped it said so.
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Build log
A Pipeline Isn't Built Until Someone Else Runs It
Chase ran our chronicle-and-PR pipeline solo, extended it into new territory, and went back to fix a gap in his own earlier work along the way.
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Build log
Three releases in four days, and the discipline built to make that safe
Three point releases shipped in four days, each a coherent batch. The release engineering that made the speed defensible, not reckless, shipped in the same window: zero-downtime deploys, a corrected kill timeout, and a branch-protection rule learned from an actual loss.
Client #1 is us
We run on our own machinery.
The audits, the writing pipeline, the scorecard: we use everything we sell on ourselves first, and publish the results. If the machinery doesn't work for us, we have no business leaving it behind for anyone else.
Follow the build →Receipt 001
1.25% → 5.8%
of AI answers citing a client's domain, two weeks after 14 PRs merged. Caveats included.
Read the receipt →
The flagship engagement
Control what AI says about your business.
The AI GTM Sprint: 90 days, fixed price, hands-on. A baseline audit of what AI actually says about you, your brand manifesto, a writing process trained on it, your top pages and READMEs fixed, one quick win shipped, and verification that it landed. You keep everything.