Give your AI a memory it can trust.

Reasons stores what your AI learns with sources and justifications. When something turns out to be wrong, everything that depended on it corrects itself. No more starting from scratch.

The problem is real

Every time you start a new conversation with an AI assistant, it knows nothing about your project, your decisions, or what it figured out yesterday. You re-explain. It re-derives. You correct the same mistakes.

And when something it told you last week turns out to be wrong, every conclusion it built on top of that bad information just stays there, uncorrected, in whatever notes you saved.

Reasons fixes that

It remembers.

Facts, decisions, and conclusions persist across sessions, models, and even different AI assistants. What Claude learned on Monday, Gemini can build on Tuesday.

It shows its work.

Every belief in the database links back to the evidence that supports it. You can always ask "why do you believe this?" and get a real answer — not a hallucinated one.

It corrects itself.

When a premise turns out to be wrong, everything that depended on it updates automatically. Retract one fact and watch the cascade fix your whole knowledge base. No manual cleanup. No stale conclusions hiding in the dark.

It works offline.

A reasons database is a single file. Put it on a thumbdrive, use it on a plane, share it with a colleague. No cloud subscription required.

How it works

1

Learn

As your AI works, it records what it learns with sources. "The API rate limit is 100/min" sourced from the docs. "Our deploy broke because of the config change" sourced from the incident log.

2

Connect

Facts link to other facts through justifications. "We need to add caching" is justified by the rate limit and the traffic growth. If either premise changes, the conclusion knows.

3

Correct

When something turns out to be wrong, you retract it. Everything downstream updates automatically. The caching conclusion flips to "not currently justified" until you provide new evidence. Your knowledge base stays honest.

Get started

Reasons.app

One-click install for macOS. Runs in your menu bar.

Download for macOS

CLI

Install the command-line tool directly.

cargo install reasons-cli

Claude Desktop

Drag the skill file into Claude Desktop. Done.

Get the skill file

The vision

We are building a Library of Alexandria for the age of AI — a decentralized, self-correcting body of the world's knowledge where every claim is justified, every correction propagates, and the whole thing fits on a thumbdrive. Today it helps your AI remember what it learned yesterday. Tomorrow it helps robots on Mars solve engineering problems without phoning home for the answer. The knowledge is free, open, and yours to keep.