This mod is specifically for Forge Mod developers. It provides a collection of tools that are useful for debugging world generation related mods.
I do not recommend running this as part of a standard modpack as most of the commands are quite destructive.
This is a simple forge mod that adds a set of utility commands:
/chunkxray [radiusInChunks] [filter]
/chunksurvey [radiusInChunks] [filter]
/chunkreplace [radiusInChunks] blockToReplace blockToReplaceWith
The source code is available under the Lesser GPL V3 at http://github.com/AtomicBlom/ChunkExplorer/