Added more examples thanks to @crovono

.vscode/schema-validation.json

@@ -4,7 +4,10 @@
     "object_check": {
       "type": "object",
       "dependencies": {
-        "description": ["title"]
+        "description": ["title"],
+        "additionalProperties": ["type"],
+        "items": ["type"],
+        "properties": ["type"]
       },
       "additionalProperties": {
         "anyOf": [

examples/bp/feature_rules/ore_feature_placement.json

@@ -0,0 +1,22 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:feature_rules": {
+		"description": {
+			"identifier": "ore_features:ore_feature_placement",
+			"places_feature": "ore_features:ore_feature"
+		},
+
+		"conditions": {
+			"placement_pass": "final_pass"
+		},
+
+		"distribution": {
+			"iterations": 1,
+
+			"x": 0,
+			"z": 0,
+			"y": "query.heightmap(v.worldx, v.worldz)"
+		}
+	}
+}

examples/bp/feature_rules/search_feature_placement.json

@@ -0,0 +1,22 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:feature_rules": {
+		"description": {
+			"identifier": "search_features:search_feature_placement",
+			"places_feature": "search_features:search_feature"
+		},
+
+		"conditions": {
+			"placement_pass": "final_pass"
+		},
+
+		"distribution": {
+			"iterations": 1,
+
+			"x": 0,
+			"z": 0,
+			"y": 0
+		}
+	}
+}

examples/bp/feature_rules/sequence_feature_placement.json

@@ -0,0 +1,22 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:feature_rules": {
+		"description": {
+			"identifier": "sequence_features:sequence_feature_placement",
+			"places_feature": "sequence_features:sequence_feature"
+		},
+
+		"conditions": {
+			"placement_pass": "final_pass"
+		},
+
+		"distribution": {
+			"iterations": 1,
+
+			"x": 0,
+			"z": 0,
+			"y": 90
+		}
+	}
+}

examples/bp/feature_rules/tree_feature_placement.json

@@ -0,0 +1,23 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:feature_rules": {
+		"description": {
+			"identifier": "tree_features:tree_feature_placement",
+			"places_feature": "tree_features:tree_feature"
+		},
+
+		"conditions": {
+			"placement_pass": "final_pass"
+		},
+
+		"distribution": {
+			"iterations": 1,
+			"scatter_chance": 2,
+
+			"x": 0,
+			"z": 0,
+			"y": 90
+		}
+	}
+}

examples/bp/features/ore.md

@@ -0,0 +1,3 @@
+# ore
+
+All references are just block descriptors.

examples/bp/features/ore_feature.json

@@ -0,0 +1,21 @@
+{
+  "format_version": "1.13.0",
+
+  "minecraft:ore_feature": {
+    "description": {
+      "identifier": "ore_features:ore_feature"
+    },
+
+    "count": 25,
+    "replace_rules": [
+      {
+        "places_block": "minecraft:glass",
+        "may_replace": ["minecraft:air"]
+      },
+      {
+        "places_block": "minecraft:cobblestone",
+        "may_replace": ["minecraft:grass", "minecraft:stone", "minecraft:dirt"]
+      }
+    ]
+  }
+}

examples/bp/features/search_feature.json

@@ -0,0 +1,16 @@
+{
+  "format_version": "1.13.0",
+  //The schema is exactly right; floats can be used for volume, but they're truncated as always, so indeed integers are the recommended type.
+  "minecraft:search_feature": {
+    "description": {
+      "identifier": "search_features:search_feature"
+    },
+    "places_feature": "search_features:search_feature_obsidian",
+    "search_volume": {
+      "min": [0, 30, 15],
+      "max": [0, 100, 15]
+    },
+    "search_axis": "-y",
+    "required_successes": 3
+  }
+}

examples/bp/features/search_feature_obsidian.json

@@ -0,0 +1,20 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:single_block_feature": {
+		"description": {
+			"identifier": "search_features:search_feature_obsidian"
+		},
+
+		"places_block": "minecraft:obsidian",
+
+		"enforce_placement_rules": false,
+		"enforce_survivability_rules": false,
+		"may_replace": ["minecraft:air"],
+		"may_attach_to": {
+			"top": [
+				"minecraft:air"
+			]
+		}
+	}
+}

examples/bp/features/sequence_feature.json

@@ -0,0 +1,14 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:sequence_feature": {
+		"description": {
+			"identifier": "sequence_features:sequence_feature"
+		},
+
+		"features": [
+			"tree_features:tree_feature",
+			"sequence_features:sequence_feature_planks"
+		]
+	}
+}

examples/bp/features/sequence_feature_planks.json

@@ -0,0 +1,14 @@
+{
+  "format_version": "1.13.0",
+  //They're broken: always have been. They don't throw errors, but they don't reposition based on input/output. No errors are thrown, it just doesn't do its job. The schema is correct.
+  "minecraft:single_block_feature": {
+    "description": {
+      "identifier": "sequence_features:sequence_feature_planks"
+    },
+
+    "places_block": "minecraft:planks",
+
+    "enforce_placement_rules": false,
+    "enforce_survivability_rules": false
+  }
+}

examples/bp/features/structure_feature.json

@@ -0,0 +1,15 @@
+{
+  "format_version": "1.13.0",
+  "minecraft:structure_template_feature": {
+    "description": {
+      "identifier": "structure_features:structure_feature"
+    },
+
+    "structure_name": "structure_features:structure",
+
+    "facing_direction": "south",
+    "adjustment_radius": 0,
+
+    "constraints": {}
+  }
+}

examples/bp/features/tree_feature.json

@@ -0,0 +1,45 @@
+{
+	"format_version": "1.13.0",
+	"minecraft:tree_feature": {
+		"description": {
+			"identifier": "tree_features:tree_feature"
+		},
+
+		"base_block": [
+			"minecraft:dirt",
+			"minecraft:coarse_dirt"
+		],
+		"base_cluster": {
+			"num_clusters": 4,
+			"cluster_radius": 3,
+			"may_replace": ["minecraft:air"]
+		},
+
+		"may_replace": ["minecraft:air"],
+
+		"fancy_trunk": {
+			"trunk_block": "minecraft:log",
+
+			"trunk_height": {
+				"base": 24,
+				"variance": 1,
+				"scale": 1
+			},
+			"trunk_width": 3,
+			"width_scale": 2,
+
+			"foliage_altitude_factor": 0.5,
+			"branches": {
+				"slope": 0.33,
+				"density": 0.25,
+				"min_altitude_factor": 0
+			}
+		},
+
+		"fancy_canopy": {
+			"height": 3,
+			"radius": 4,
+			"leaf_block": "minecraft:leaves"
+		}
+	}
+}