diff --git a/doc/node-config-schema.json b/doc/node-config-schema.json
index 22f52952af54d4..6e92ba3e03f89d 100644
--- a/doc/node-config-schema.json
+++ b/doc/node-config-schema.json
@@ -45,21 +45,12 @@
             }
           ]
         },
-        "allow-inspector": {
-          "type": "boolean"
-        },
-        "allow-net": {
-          "type": "boolean"
-        },
         "allow-wasi": {
           "type": "boolean"
         },
         "allow-worker": {
           "type": "boolean"
         },
-        "async-context-frame": {
-          "type": "boolean"
-        },
         "conditions": {
           "oneOf": [
             {
@@ -133,15 +124,30 @@
         "experimental-addon-modules": {
           "type": "boolean"
         },
+        "experimental-async-context-frame": {
+          "type": "boolean"
+        },
+        "experimental-default-type": {
+          "type": "string"
+        },
         "experimental-detect-module": {
           "type": "boolean"
         },
         "experimental-eventsource": {
           "type": "boolean"
         },
+        "experimental-fetch": {
+          "type": "boolean"
+        },
+        "experimental-global-customevent": {
+          "type": "boolean"
+        },
         "experimental-global-navigator": {
           "type": "boolean"
         },
+        "experimental-global-webcrypto": {
+          "type": "boolean"
+        },
         "experimental-import-meta-resolve": {
           "type": "boolean"
         },
@@ -162,9 +168,6 @@
         "experimental-print-required-tla": {
           "type": "boolean"
         },
-        "experimental-quic": {
-          "type": "boolean"
-        },
         "experimental-repl-await": {
           "type": "boolean"
         },
@@ -177,6 +180,9 @@
         "experimental-sqlite": {
           "type": "boolean"
         },
+        "experimental-strip-types": {
+          "type": "boolean"
+        },
         "experimental-transform-types": {
           "type": "boolean"
         },
@@ -361,9 +367,6 @@
         "stack-trace-limit": {
           "type": "number"
         },
-        "strip-types": {
-          "type": "boolean"
-        },
         "test-coverage-branches": {
           "type": "number"
         },
@@ -401,12 +404,6 @@
         "test-coverage-lines": {
           "type": "number"
         },
-        "test-global-setup": {
-          "type": "string"
-        },
-        "test-isolation": {
-          "type": "string"
-        },
         "test-name-pattern": {
           "oneOf": [
             {
@@ -452,9 +449,6 @@
             }
           ]
         },
-        "test-rerun-failures": {
-          "type": "string"
-        },
         "test-shard": {
           "type": "string"
         },
@@ -502,6 +496,9 @@
         "tls-min-v1.3": {
           "type": "boolean"
         },
+        "trace-atomics-wait": {
+          "type": "boolean"
+        },
         "trace-deprecation": {
           "type": "boolean"
         },
@@ -602,225 +599,6 @@
         }
       },
       "type": "object"
-    },
-    "permission": {
-      "type": "object",
-      "additionalProperties": false,
-      "properties": {
-        "allow-addons": {
-          "type": "boolean"
-        },
-        "allow-child-process": {
-          "type": "boolean"
-        },
-        "allow-fs-read": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "allow-fs-write": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "allow-inspector": {
-          "type": "boolean"
-        },
-        "allow-net": {
-          "type": "boolean"
-        },
-        "allow-wasi": {
-          "type": "boolean"
-        },
-        "allow-worker": {
-          "type": "boolean"
-        },
-        "permission": {
-          "type": "boolean"
-        }
-      }
-    },
-    "test": {
-      "type": "object",
-      "additionalProperties": false,
-      "properties": {
-        "experimental-test-coverage": {
-          "type": "boolean"
-        },
-        "experimental-test-module-mocks": {
-          "type": "boolean"
-        },
-        "test": {
-          "type": "boolean"
-        },
-        "test-concurrency": {
-          "type": "number"
-        },
-        "test-coverage-branches": {
-          "type": "number"
-        },
-        "test-coverage-exclude": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "test-coverage-functions": {
-          "type": "number"
-        },
-        "test-coverage-include": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "test-coverage-lines": {
-          "type": "number"
-        },
-        "test-force-exit": {
-          "type": "boolean"
-        },
-        "test-global-setup": {
-          "type": "string"
-        },
-        "test-isolation": {
-          "type": "string"
-        },
-        "test-name-pattern": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "test-only": {
-          "type": "boolean"
-        },
-        "test-reporter": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "test-reporter-destination": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "test-rerun-failures": {
-          "type": "string"
-        },
-        "test-shard": {
-          "type": "string"
-        },
-        "test-skip-pattern": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "test-timeout": {
-          "type": "number"
-        },
-        "test-update-snapshots": {
-          "type": "boolean"
-        }
-      }
-    },
-    "watch": {
-      "type": "object",
-      "additionalProperties": false,
-      "properties": {
-        "watch": {
-          "type": "boolean"
-        },
-        "watch-kill-signal": {
-          "type": "string"
-        },
-        "watch-path": {
-          "oneOf": [
-            {
-              "type": "string"
-            },
-            {
-              "items": {
-                "type": "string",
-                "minItems": 1
-              },
-              "type": "array"
-            }
-          ]
-        },
-        "watch-preserve-output": {
-          "type": "boolean"
-        }
-      }
     }
   },
   "type": "object"
diff --git a/lib/internal/options.js b/lib/internal/options.js
index be1dc6a842c526..486a6098494fde 100644
--- a/lib/internal/options.js
+++ b/lib/internal/options.js
@@ -106,8 +106,27 @@ function generateConfigJsonSchema() {
 
     // Add all options for this namespace
     for (const { 0: optionName, 1: optionType } of optionsMap) {
-      const keyWithoutPrefix = StringPrototypeReplace(optionName, '--', '');
-      namespaceProperties[keyWithoutPrefix] = createPropertyForType(optionType);
+      let keyWithoutPrefix = StringPrototypeReplace(optionName, '--', '');
+      const originalKey = keyWithoutPrefix;
+      const propertySchema = createPropertyForType(optionType);
+      
+      // For `test` and `watch` namespaces, remove the namespace prefix
+      // from keys to avoid redundancy (e.g., `test-concurrency` -> `concurrency`)
+      // Also add the prefixed version as an alias for backward compatibility
+      if (namespace === 'test' && keyWithoutPrefix.startsWith('test-')) {
+        keyWithoutPrefix = StringPrototypeReplace(keyWithoutPrefix, 'test-', '');
+        // Add alias: both `concurrency` and `test-concurrency` are valid
+        namespaceProperties[originalKey] = propertySchema;
+        namespaceProperties[keyWithoutPrefix] = propertySchema;
+      } else if (namespace === 'watch' && keyWithoutPrefix.startsWith('watch-')) {
+        keyWithoutPrefix = StringPrototypeReplace(keyWithoutPrefix, 'watch-', '');
+        // Add alias: both `path` and `watch-path` are valid
+        namespaceProperties[originalKey] = propertySchema;
+        namespaceProperties[keyWithoutPrefix] = propertySchema;
+      } else {
+        // For other namespaces or keys without prefix, add normally
+        namespaceProperties[keyWithoutPrefix] = propertySchema;
+      }
     }
 
     // Sort the namespace properties alphabetically