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The Cleo Team

The Workshop

Notes on building an AI marketing operating system. Architecture decisions, technical challenges, and the craft of making something that thinks.

5 min read

When to Stop Building

There comes a point in every product where the next unit of engineering effort produces less value than the next unit of distribution effort. Recognising that moment is the most important skill a builder can develop.

philosophyproductvision
4 min read

The Cost of Not Shipping

In AI product development, the gap between "working" and "shipped" is where most value dies. The features that matter are the ones that reach users. Everything else is inventory.

philosophyproductengineering
6 min read

Building Alone, Shipping Fast

Cleo is built by one person. I say that not as a badge of honour but as a fact that shapes every decision. There is no backend team. No design team. No DevOps. No QA. One person, a code editor, and AI tools that have fundamentally changed what "one person" means.

devlogengineeringproductsolo-dev
5 min read

The Energy Model

Most SaaS pricing is simple. You pay per seat, per month. Maybe there is a usage component for storage or API calls. The model is well understood and investors like it because it scales linearly with headcount.

devlogengineeringproduct
4 min read

The Empty State Is the First Impression

Most products optimise for the experience of an active user. But the first thing every user sees is emptiness. How you handle that moment determines whether they become an active user at all.

designproductphilosophy
3 min read

What We Mean by Marketing OS

Cleo is not a marketing tool. It is a marketing operating system. The distinction is not semantic - it reflects a fundamentally different architectural philosophy about how AI should serve businesses.

philosophyproductvision
3 min read

The Weekly Pulse

Every week, Cleo generates a summary of what happened across the user's marketing efforts. This weekly pulse is not a report - it is a trust-building ritual that shows the AI is paying attention.

productengagementdesign
3 min read

The Mind Map as Trust Architecture

Cleo visualises its understanding of the user's business as an interactive mind map. This is not a feature. It is a trust mechanism that makes the AI's knowledge auditable and correctable.

producttrustdesign
3 min read

Building Email from First Principles

We could have integrated an existing email marketing platform. Instead, we built email into Cleo from the ground up. The decision came down to what AI-native email marketing actually requires.

emailarchitectureproduct
3 min read

The Rich Editor Inside the AI

AI can generate content. But content is not just text - it is structure, formatting, hierarchy, and visual rhythm. That is why Cleo has a full rich text editor built into its core.

producteditorcontent
3 min read

Pricing Aligned with Value

Per-seat pricing punishes growth. Flat-rate pricing ignores usage. We designed an energy-based credit system that aligns cost with the value the AI actually delivers.

productpricingphilosophy
3 min read

Human-in-the-Loop Is the Feature

The most common criticism of human-in-the-loop AI is that it slows things down. We think that misses the point entirely.

producttrustdesign