AI authoring: the MCP server can build, test and publish a game without the editor

Build a world without opening the editor#

• create_map, generate_terrain, sculpt_terrain, apply_erosion, bake_terrain (merges walkability instead of replacing it), set_water, set_tile_walkability, create_height_layer / set_height_layer, place_props with a props.bin codec, and stamp_building_prefab.
• The Terrain3D base surface is imported without an editor session; export_pck and build_server_package run in-process.

Content#

• define_animation / define_animation_base with id validation; set_drop_table covers all twelve drop tables; define_recipe writes the skill arrays the runtime reads; define_shop validates its currency; define_task checks trigger targets reference real entities.
• Dialogues wire to NPC options; define_interface gains grid, scroll, spacer and texture nodes; define_vfx generates particle scenes; set_schema_row edits any schema table.
• Item, equipment, location and interface script templates; scripts are structurally checked as C# before they are written; generate_script_project produces an IDE companion project with direct module calls.

Assets and testing#

• browse_cloud_assets / pull_cloud_asset reach the approved cloud library; FBX/OBJ imports convert through headless Blender; update_asset, delete_asset, check_references (with blast radius in delete confirmations), and asset requests visible in an editor panel.
• deploy_test_build, stop_test_server, play_local over the editor bridge, read_server_logs with modes and filtering, screenshot_editor.

Safety#

• Generation-stamped backups with get_change_log and restore_backup; failed write plans roll back; conflicts between editor saves and AI writes are detected; destructive calls are recorded in an append-only audit log; dryRun / confirm on moves, promotion and terrain bakes; VASTOPIA_PUBLISHING=off keeps an agent author-only.