diff --git a/schema/instrumentation.json b/schema/instrumentation.json
index b698ddd4..f529bf03 100644
--- a/schema/instrumentation.json
+++ b/schema/instrumentation.json
@@ -2,7 +2,9 @@
     "$id": "https://opentelemetry.io/otelconfig/instrumentation.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "type": "object",
-    "additionalProperties": false,
+    "additionalProperties": {
+        "$ref": "#/$defs/ExperimentalGeneralInstrumentation"
+    },
     "properties": {
         "general": {
             "$ref": "#/$defs/ExperimentalGeneralInstrumentation"
@@ -41,11 +43,6 @@
             "$ref": "#/$defs/ExperimentalLanguageSpecificInstrumentation"
         }
     },
-    "patternProperties": {
-        ".*": {
-            "$ref": "#/$defs/ExperimentalLanguageSpecificInstrumentation"
-        }
-    },
     "$defs": {
         "ExperimentalGeneralInstrumentation": {
             "type": "object",
@@ -128,11 +125,8 @@
         },
         "ExperimentalLanguageSpecificInstrumentation": {
             "type": "object",
-            "additionalProperties": true,
-            "patternProperties": {
-                ".*": {
-                    "type": "object"
-                }
+            "additionalProperties": {
+                "type": "object"
             }
         }
     }
diff --git a/schema/logger_provider.json b/schema/logger_provider.json
index 63cb8e77..9120b1ac 100644
--- a/schema/logger_provider.json
+++ b/schema/logger_provider.json
@@ -64,7 +64,9 @@
         },
         "LogRecordExporter": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -80,11 +82,6 @@
                 "console": {
                     "$ref": "common.json#/$defs/ConsoleExporter"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "LogRecordLimits": {
@@ -103,7 +100,9 @@
         },
         "LogRecordProcessor": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -113,11 +112,6 @@
                 "simple": {
                     "$ref": "#/$defs/SimpleLogRecordProcessor"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object"]
-                }
             }
         },
         "ExperimentalLoggerConfigurator": {
diff --git a/schema/meter_provider.json b/schema/meter_provider.json
index 602ce384..e6138ea3 100644
--- a/schema/meter_provider.json
+++ b/schema/meter_provider.json
@@ -126,7 +126,9 @@
         },
         "PushMetricExporter": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -142,43 +144,32 @@
                 "console": {
                     "$ref": "common.json#/$defs/ConsoleExporter"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "PullMetricExporter": {
             "type": ["object"],
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
                 "prometheus/development": {
                     "$ref": "#/$defs/ExperimentalPrometheusMetricExporter"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "MetricProducer": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
                 "opencensus": {
                     "$ref": "#/$defs/OpenCensusMetricProducer"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "OpenCensusMetricProducer": {
diff --git a/schema/propagator.json b/schema/propagator.json
index af1ad122..7283170f 100644
--- a/schema/propagator.json
+++ b/schema/propagator.json
@@ -16,7 +16,9 @@
     "$defs": {
         "TextMapPropagator": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -38,11 +40,6 @@
                 "ottrace": {
                     "$ref": "#/$defs/OpenTracingPropagator"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "TraceContextPropagator": {
diff --git a/schema/resource.json b/schema/resource.json
index ca8add58..9d4420b8 100644
--- a/schema/resource.json
+++ b/schema/resource.json
@@ -78,7 +78,9 @@
         },
         "ExperimentalResourceDetector": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -94,11 +96,6 @@
                 "service": {
                     "$ref": "#/$defs/ExperimentalServiceResourceDetector"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "ExperimentalContainerResourceDetector": {
diff --git a/schema/tracer_provider.json b/schema/tracer_provider.json
index d2a660c0..d290c7da 100644
--- a/schema/tracer_provider.json
+++ b/schema/tracer_provider.json
@@ -55,7 +55,9 @@
         },
         "Sampler": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -74,11 +76,6 @@
                 "trace_id_ratio_based": {
                     "$ref": "#/$defs/TraceIdRatioBasedSampler"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "AlwaysOffSampler": {
@@ -149,7 +146,9 @@
         },
         "SpanExporter": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -168,11 +167,6 @@
                 "zipkin": {
                     "$ref": "#/$defs/ZipkinSpanExporter"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "SpanLimits": {
@@ -207,7 +201,9 @@
         },
         "SpanProcessor": {
             "type": "object",
-            "additionalProperties": true,
+            "additionalProperties": {
+                "type": ["object", "null"]
+            },
             "minProperties": 1,
             "maxProperties": 1,
             "properties": {
@@ -217,11 +213,6 @@
                 "simple": {
                     "$ref": "#/$defs/SimpleSpanProcessor"
                 }
-            },
-            "patternProperties": {
-                ".*": {
-                    "type": ["object", "null"]
-                }
             }
         },
         "ZipkinSpanExporter": {
diff --git a/schema/type_descriptions.yaml b/schema/type_descriptions.yaml
index 42507281..e9ce0192 100644
--- a/schema/type_descriptions.yaml
+++ b/schema/type_descriptions.yaml
@@ -8,7 +8,7 @@
 #     propertyB: The propertyB description.   # The description for MyType.propertyB
 #   path_patterns:                            # Array of patterns where this type occurs in the schema. Each key-value in an example configuration file is transformed
 #     - .foo                                  # into its JSON dot-notation location in the file, which is matched against these patterns. Each pattern is turned in a regex,
-                                              # after escaping special characters and replacing "*" with ".*".
+                                              # after escaping special characters and replacing "*" with ".+".
 
 # START OpenTelemetryConfiguration
 - type: OpenTelemetryConfiguration
diff --git a/scripts/generate-descriptions.js b/scripts/generate-descriptions.js
index 2564f9fc..f15a43fc 100644
--- a/scripts/generate-descriptions.js
+++ b/scripts/generate-descriptions.js
@@ -135,7 +135,7 @@ if (outputFile === null) {
 // Helper functions
 
 // Converts an input pattern to a regular expression.
-// Converts any "*" to a ".*".
+// Converts any "*" to a ".+".
 // Escapes all other regex special characters.
 // Prefixes with "^", and adds "$" suffix.
 function toRegex(pattern) {
@@ -143,7 +143,7 @@ function toRegex(pattern) {
     if (parts.length === 0) parts = [pattern];
     const escaped = parts
         .map(chunk => chunk.replace(/[-[\]{}()*+?.,\\^$|]/g, "\\$&"))
-        .join("(.*)");
+        .join("(.+)");
     return "^" + escaped + "$";
 }