Source: https://spec-kitty.ai/features

# Features | Brain Kitty, Team Kitty and Build Kitty

> What each part of Spec Kitty does: Brain Kitty holds what each person knows, Team Kitty combines it, and Build Kitty, the free CLI, hands it to your coding agents.

_Features_

## What each part of Spec Kitty does.

Spec Kitty is the decision layer for autonomous software delivery: your AI agents write the code, and your people make the calls. Each person curates what they know in Brain Kitty; Team Kitty combines everyone's and hands it to your coding agents through Build Kitty, the free Spec Kitty CLI.

[Start free with the CLI](https://spec-kitty.ai/getting-started.md) · [Book a demo](https://spec-kitty.ai/contact?topic=demo)

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## Brain Kitty

Status: Contact us

Your own knowledge graph of the standards, runbooks, rules and decisions you own. The rules your agents follow live here.

### Curate your own

Each person keeps their own Brain Kitty, built from what they know and have decided.

### Ask

Cited answers from what was decided, the same answer every time.

### Check

Reviews new work against what was decided and quotes the evidence.

### People approve

Brain Kitty proposes and informs. It never silently changes what was decided.

![Brain Kitty knowledge graph: 31 dimensions, 65 plays, 8 decision rules and 24 rulings drawn as linked nodes, a ranked list of matching nodes, and an agent chat panel answering a question about Spec Kitty and citing the ruling it used.](https://spec-kitty.ai/cms/brain-kitty-knowledge-graph.webp)

Brain Kitty: your standards and rulings as a graph, with an agent answering from it.

[Contact us about Brain Kitty](https://spec-kitty.ai/contact?topic=brain-kitty)

## Team Kitty

Status: Early access

The paid team product, hosted for you. It brings each person's Brain Kitty together.

### Everyone's Brain Kitty, together

Collects the Brain Kitty graphs each person curates into one for the team.

### The team decides what applies

People choose together which knowledge and rules count for the team's work.

### Served over MCP

Build Kitty loads what the team approved over MCP (the standard way coding agents load outside knowledge), so every agent works from the same knowledge.

[Request early access](https://spec-kitty.ai/contact?topic=early-access)

## Build Kitty

Status: Free, MIT

The free Spec Kitty CLI. Runs on your machines, inside your coding agent, and loads what Team Kitty serves over MCP.

### Decide the work before code

Agents ask what to build, then write a spec, plan and work packages you edit before any code.

### Several agents, no collisions

Each work package runs in its own git worktree, and a crashed run resumes where it stopped.

### Review against the spec

A reviewer that isn't the author checks each change, with checks an agent can't skip.

### Your Brain Kitty, loaded

Agents build with the Brain Kitty graphs Team Kitty applied; each step loads only the slice it needs.

### Your agents, your keys

Runs inside Claude Code, Codex, Cursor, Copilot and 20+ others, on your own model accounts. Not another coding agent.

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## Start with the free CLI.

[Start free with the CLI](https://spec-kitty.ai/getting-started.md) · [Book a demo](https://spec-kitty.ai/contact?topic=demo)