[
  {
    "prompt": "Research open-source Three.js environments, terrain systems, and character controllers that could be dropped into an existing Three.js scene to upgrade it from an abstract grid world to a more immersive environment. I need:\n\n1. Three.js terrain options (procedural terrain, heightmap-based, or pre-built environments)\n2. Three.js character/avatar systems with walking animations (replacing a simple stick figure)\n3. Skybox or atmospheric systems for Three.js\n4. Any complete \"starter world\" projects that include terrain + sky + character controller\n\nFocus on lightweight, browser-friendly options. The current setup uses vanilla Three.js (no React Three Fiber). I need things that can integrate with an existing scene, not replace the whole stack.\n\nList the top 3-5 options for each category with GitHub URLs, stars, and a one-line summary of what they provide.",
    "chosen": "I'll research each category systematically using web searches.\n\n## Category 1: Three.js Terrain Options\n<tool_call>\n{\"name\": \"WebSearch\", \"arguments\": {\"query\": \"Three.js terrain generation library GitHub open source procedural heightmap\"}}\n</tool_call>\n<tool_result>\n[{\"title\": \"three-landscape\", \"url\": \"https://github.com/nwpointer/three-landscape\", \"content\": \"three-landscape is a collection of tools for rendering high quality terrains and natural environments in three.js, inspired by the terrain tools in modern game engines. It provides heightmap-based terrain with LOD (level of detail), texture splatting, and grass/vegetation rendering.\"},\n{\"title\": \"THREE.Terrain\", \"url\": \"https://github.com/IceCreamYou/THREE.Terrain\", \"content\": \"A procedural terrain generation engine for use with the Three.js 3D graphics library for the web. Generates terrain meshes with multiple algorithms including diamond-square, perlin noise, and more. Supports texturing, smoothing, and scatter meshes (trees, rocks, etc).\"},\n{\"title\": \"three-geo\", \"url\": \"https://github.com/w3reality/three-geo\", \"content\": \"three-geo is a Three.js library for 3D geographic visualization. It can generate 3D terrain from real-world elevation data (Mapbox), satellite imagery, and vector data.\"}]\n</tool_result>\n\n<tool_call>\n{\"name\": \"WebSearch\", \"arguments\": {\"query\": \"THREE.Terrain github stars IceCreamYou procedural terrain three.js\"}}\n</tool_call>\n<tool_result>\n[{\"title\": \"IceCreamYou/THREE.Terrain - GitHub\", \"url\": \"https://github.com/IceCreamYou/THREE.Terrain\", \"content\": \"A procedural terrain generation engine for use with the Three.js 3D graphics library for the web. Stars: ~700+. Features include diamond-square, Perlin/Simplex noise terrain generation, automatic texturing, LOD support, and scatter objects.\"}]\n</tool_result>\n\n<tool_call>\n{\"name\": \"WebSearch\", \"arguments\": {\"query\": \"three-landscape github stars nwpointer terrain three.js\"}}\n</tool_call>\n<tool_result>\n[{\"title\": \"nwpointer/three-landsca",
    "session": "session_20260321_205130_f1d482.json"
  }
]