## Executive Summary

This PRD outlines the evolution of **Keep**, an existing Google Keep clone, into a more intelligent and organized knowledge management tool. Building upon the solid foundation of the existing Next.js 16 application (which already features CRUD operations, masonry layout, and basic search), this initiative focuses on enhancing **discoverability and organization**.

The core objective is to move beyond simple text matching and manual organization. We aim to implement **AI-powered automatic tagging** that suggests relevant labels based on note content, streamlining the organization process. Furthermore, we will upgrade the search capabilities to a **semantic search engine** that understands natural language queries, allowing users to find notes based on concepts and meaning rather than just exact keywords. An improved, intuitive tag management interface will complement these backend changes.

### What Makes This Special

The key differentiator for this iteration is the **intelligent layer** added to the traditional note-taking experience. While standard clones offer static storage, our enhanced Keep will actively help users organize their thoughts.

*   **From Manual to Assisted:** Users no longer need to diligently tag every note; the system proactively suggests tags, reducing friction.
*   **From Keyword to Concept:** Search becomes conversational and context-aware. A query like "recipes for dinner" will surface notes about "pasta" or "steak" even if the word "recipe" isn't explicitly used.
*   **Seamless Integration:** These advanced features will be integrated directly into the existing improved masonry layout and UI, maintaining the familiar "Google Keep" simplicity while adding enterprise-grade organization tools.

## Project Classification

**Technical Type:** web_app
**Domain:** general
**Complexity:** low
**Project Context:** Brownfield - extending existing system

### Classification Signals
*   **Project Type:** web_app (Extending an existing Next.js web application)
*   **Domain:** general (Productivity/Note-taking tool, no specific high-compliance domain like healthcare or fintech detected)
*   **Complexity:** low (Standard web app complexity, though the AI integration adds a layer of sophistication, the domain itself is not high-risk/high-regulation)
