MCP server · Notes

vivac MCP server

Give your AI a memory tree of your project's decisions, so it knows why the work is where it is.

Notes Productivity For it and development Knowledge & Memory

vivac keeps a small tree of your project's work and decisions in a plain file inside the project folder. Each item remembers the item it came from, so months later you or your AI can still ask why you are working on this. It is handy for anyone who runs several projects with an AI assistant and keeps losing the thread between sessions.

What is an MCP server? The 30-second version

On its own, your AI can only chat. It forgets your project the moment the session ends. An MCP server is a small helper program that gives your AI a new skill, here a connection to vivac's tree of your project's work and decisions. Once it is connected, your AI can look things up in that tree and add to it when you ask, instead of guessing from scratch.

What this MCP server does

You ask your AI something like what are we working on, or why is this task here. Your AI uses this helper to read the vivac tree stored in your project folder. The helper walks the tree and finds the goal, the tasks under it, the decisions already made, and what is still open. Your AI then answers you in plain words, with the chain of why spelled out. When you finish something, your AI can also mark it done, and vivac refuses to close a task while things under it are still open.

What you can do with it

See where the work stands right now
Ask why a task exists and trace it back to its goal
Read the decisions already made, and what was rejected
Mark a task done, with a check that nothing under it is still open
Find what is still open and waiting on you
Start a session with a short brief of the project
Look at the whole tree in a browser on your own machine

Try asking your AI

“Give me a brief of where this project stands”
“Why are we working on the cache adapter task”
“What is still open and waiting on me”
“Mark task 4 as done”
“What decisions have we already made about retries”

What it gives back to you

You get short plain answers in the chat: a brief of the project, a chain of tasks from the goal down to today's work, a list of open items, or the decisions with the options that were turned down. When it changes something, it tells you what it closed or added. The answers are kept short on purpose, so they do not eat your whole chat window.

Before you start

What you need

The vivac program installed on your computer (a prebuilt file from its releases page, or built with Rust 1.89 or newer)
A project folder where vivac can keep its .vivac file

Good to know

It writes a file inside your project folder and can close or abandon tasks, so review what your AI is about to change before you say yes.

Install it with your AI

Add vivac MCP server to your AI, no technical skills needed

You don't install anything by hand. You copy one prompt, paste it into an AI that can work on your computer, and it checks, installs and connects the server for you, asking you when it needs something.

Sign in to get the install prompt

Members get a ready-made prompt that lets the Claude desktop app check vivac MCP server, install it and connect it for them, step by step. You don't need any technical skills: you copy, paste and answer a few questions. Your connected AI can also find and install any of the 4,361 MCP servers here for you.