About
Built on a few hard principles.
Propor is not a content generator with an AI label. It is a deliberately engineered system built on two founder principles that break every tie.
The two principles
These break every tie.
Never act prematurely.
Business outcome over activity. The system must understand the company and its market before it speaks. Execution is earned, not assumed. Intelligence-gathering must not become an excuse never to start - judge when you know enough, then begin small.
Never lose accumulated context.
Memory is the compounding asset. The system remembers everything its agents learn: every valuable thing is captured, versioned, and never thrown away. It is carefully curated so a dead strategy can never resurface as today's recommendation. The real risk is memory rot - and the whole design fights it.
How it is built
Six principles that are enforced in code, not just documented.
Memory is the product
Most AI marketing tools are stateless. They generate on demand and forget everything between runs. Propor inverts that. The accumulated knowledge of your business, your market, and what has worked is a single, versioned, never-overwritten store that compounds over time. The longer it runs, the smarter it gets about your specific business. That is the product.
Evidence or it did not happen
Every factual claim the system makes carries a citation to its source. No evidence, no claim. This is structural, not aspirational - the system refuses to assert something it cannot point to. Every number in a piece of content is automatically checked against its source before it goes out. This is the defence against hallucination and the foundation of trust.
Execution is earned, not assumed
The system does not start posting because it has been turned on. It earns the right to post by accumulating understanding - of the business, the market, the competitors, and the audience. A scored readiness check enforces this gate. Below the bar, the only thing it is allowed to do is gather more intelligence. Principle 1 is the law.
The AI judges. The code decides.
Every routing, gating, escalation, and autonomy decision is deterministic Python - not another LLM call. The model reasons and recommends; code enforces. This means autonomy stays auditable, predictable, and safe. You can always understand exactly what rule caused a particular outcome.
Restraint is a feature
The marketing strategist skips far more ideas than it pitches. It would rather post nothing than post sludge. Being the 501st brand to make the same joke is worthless. Taste and restraint are the scarce things - and they are baked into the system's design, not left to a prompt.
Organic only
Propor never touches ad spend, paid promotion, or payment credentials. This is a deliberate choice: earned growth is the kind that compounds, that builds genuine audience relationships, and that does not evaporate when you stop paying. Every result is attributable to strategy and content quality.
Trust
Designed to be trusted by cautious people.
Credentials never touch the LLM
The model that does the reasoning never sees a single password or access token. Your account logins are held separately, handed out only as short-lived, single-use permissions, and every use is logged.
Your data is yours alone
Your data is walled off from every other client - enforced by the database itself, not by a setting someone can forget to flip. No query tied to your account can ever reach another company's data, and everything Propor learns about your business stays yours.
External text is data, not instructions
Everything the system ingests from the outside world - scraped posts, comments, DMs, news - is wrapped as data and the model is told to judge it, never obey it. This is the structural defence against prompt injection.
Who is behind Propor
Built by two brothers who needed it themselves.
Propor started because we were trying to grow our own company and drowning in the same problem you are - too many tools, no time, and nothing that remembered anything. So we built the system we wished existed, and we put it to work on our own company before we ever run yours.
When you book a call, you talk to the people who built it - not a sales team. We will tell you honestly whether it is the right fit.
Peter & Neil Brincker
Founders, Propor
Talk to the people who built it.
A 30-minute call. We will tell you honestly whether it fits.