Changelog

1.0.0 — first Fab release (Unreal Engine 5.8)

Biome data assets (UAgenticBiome): offline species rows (trees, rocks, props), runtime GPU ground-cover entries, and the landscape layer a biome binds to. See Biome Assets.
Three placement modes (EAgenticBiomePlacementMode): Grid, BiomeMap (a painted colour texture), and Hybrid.
AAgenticBiomeRegion: a native region actor on BiomeCore's actor-tag protocol. Volume, texture, and closed-spline shapes; provenance (source biome, revision, row hash) is stored on the actor. See Placement.
Landscape and MeshTerrain (Mesh Partition) backends from the same biome asset, selected by Terrain Backend (Auto, Landscape, MeshTerrain).

GPU ground cover: RT_* runtime templates run GPU generator graphs around the camera; twelve showcase templates ship, six for Landscape and six for MeshTerrain. The GroundScatterGPU_R2_Uniform, _Clustered, and _SlopeBase generators add density filter, Voronoi patches, spatial density noise, species territories, cluster scale variance (cell centre to cell edge), and landscape-layer gating for templates of your own. See Runtime Ground Cover.

Agentic Landscape layer-stack auto material: M_AT_LayerStack with MI_AT_LayerStack_Landscape, MI_AT_LayerStack_MeshTerrain, and MI_AT_LayerStack_Showcase. Painted layers plus slope, altitude, and noise-band rules. Runtime Virtual Texture reading and Nanite displacement are switches in the master, off in the shipped instances. Eight Quixel Megascans surface sets are included. See Terrain Material.
Roads (UAgenticRoadComponent) and exclusion zones (AAgenticTerraformExcluder, box or spline; the shipped Landscape sampler graphs read it, the MeshTerrain ones do not).
Wind bridge (AATWindManager, with the generic UATActorPropertyWindSource adapter) and a plugin-owned foliage wind material (M_AT_FoliageWind). The wind bridge ships with nothing pre-filled: no material parameter collection targets and no weather actor, property, or collection names. You point it at your own. See Wind Bridge.

Six custom PCG nodes: BiomeSamplingDomain, CliffHeight, CliffPlace, CurvatureFilter, FogPlacement, and HeightGradient. See PCG Nodes.
28 MCP tools in AgenticBiomesToolsets (25 biome, 3 capture), registered with Unreal's ToolsetRegistry: inspect, edit, validate, place, paint, build, and verify biomes from any MCP client. BuildLevelAs builds a level with a builder you name, so an agent can build a level that has never been built. The capture tools photograph the open level from a shot-set JSON file that you supply on each call. No AI model or agent is included. See Toolsets.
Editor: a garbage-collection guard for multithreaded PCG generation, the biome-map regression gate (VerifyBiomeMapRegions), incremental biome-map regeneration, and biome validation.
Automation tests (AgenticBiomes.*) in the AgenticBiomesTests editor module.

Four levels (Landscape and MeshTerrain, each with box regions and with a painted biome map), seven showcase biomes, and their runtime ground-cover templates.

Unreal Engine 5.8 on Windows (Win64) only.
Spline regions are not partitioned, and an open or under-three-point spline cannot generate; the build reports it as a degradation.
BiomeCore, ToolsetRegistry, Epic's Unreal MCP plugin, and the Mesh Partition plugins are Experimental engine plugins.
The wind bridge does nothing until you configure it.
A biome's Display Name and Description are metadata only: Display Name appears in the sector build log lines, and nothing reads Description. See Biome Asset.
The Terraform Excluder affects only the shipped Landscape sampler graphs.
The BuildLevel tool repeats the builder the Terraformer has recorded, so it refuses a level with no recorded build. Use BuildLevelAs to name the builder (BiomeMap, BiomeVolumes or Grid) for a level that has never been built; it refuses to convert a built level to a different builder. The capture tools read a shot-set JSON file that you author and pass as ShotSetPath; the plugin does not ship one, and images are written under your project's Saved/AgenticBiomes/Captures folder. See Toolsets.