“Decision model” now means two things
OpenAI’s Decisions API and its rivals return a fast typed answer. An avva Decision Model is one person’s published decisions. How they differ.
Blog
How to get one person’s way of deciding into an AI: prompts, decision logs, skills, clones and Decision Models.
A decision log your AI can use: what to write down
Five fields that let an AI reason from your past decisions, a worked entry, and interview questions for recalling calls you never wrote down.
Skill, system prompt or MCP: where an expert’s judgment goes
Five questions that decide where one person’s way of deciding should live: in a system prompt, in a skill, or behind an MCP connection.
AI clone or Decision Model: two ways to put your expertise into AI
A clone talks to your audience in your voice. A Decision Model is read by other people’s AI and never speaks as you. How to choose.
What “You are a senior product manager” changes in a prompt
Two studies found expert personas did not raise accuracy on factual questions. What the persona line does change, and what to write under it.
How to turn your expertise into an MCP, without writing code
What you need, what your assistant does, the five points where it stops for you, and what other people’s AI reads once you publish.
System prompts and past decisions: what each one carries
A rule says what to do. A past decision says which rule gave way, at what threshold, and why. When each is enough for an agent.
