# World Overview

## What It Does

World Overview is a separate window that displays a coarse map of all known chunks, supports bookmark navigation, and exposes chunk operations such as move, duplicate, rotate, flip, delete, and background adjustments.

## Key Files

- `src/worldshaperStudio/worldOverviewWindowController.ts`
- `src/worldshaperStudio/dom.ts`
- `server.js`

## Endpoints It Uses

- `GET /api/world/:worldId/overview`
- `GET /api/world/:worldId/bookmarks`
- bookmark writes flow through the world save path

## Important Data And Rules

- overview currently requests the full set of world chunks from the server
- it draws its own chunk preview surfaces
- it merges server chunks with cached client chunks to reflect unsaved local state
- chunk context menus expose world-level operations

## Invariants And Constraints

- overview is only available in world mode
- overview actions should not silently discard unsaved chunk edits
- chunk transform actions must preserve chunk addressing rules
- the full overview payload can become a performance hotspot on larger worlds

## Common Request Themes

- chunk operations
- world navigation
- bookmark workflows
- overview performance
- better high-level visualization

## Triage Questions

- Is the issue specific to the overview window, or all world editing?
- Does it affect overview drawing only, or also chunk save/load behavior?
- Is the request about overview scale, navigation, or chunk manipulation?