# Product Overview

Paca is a lightweight open-source collaborative task management platform for humans and AI agents working on the same board.

## Core Model

- one shared workflow for human and AI work;
- transparency over who performed what action;
- explicit human control over task assignment and outcomes;
- continuous improvement through the Plan, Act, Check, Adapt cycle.

## Product Themes

- collaborative execution rather than isolated automation;
- clear task ownership and visibility;
- documentation-driven teamwork;
- AI as a teammate, not a hidden subsystem.

This section should later expand into domain concepts, workflows, and user-facing behavior.