diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index cf9d8e8..7b19f2b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -46,6 +46,7 @@ To set up commit signing, see [GitHub's documentation on commit signature verifi
 ### Bug Reports
 
 When filing a bug report, please include:
+
 - Clear description of the issue
 - Steps to reproduce
 - Expected vs actual behavior
@@ -55,6 +56,7 @@ When filing a bug report, please include:
 ### Feature Requests
 
 We welcome feature suggestions! Please:
+
 - Clearly describe the feature and use case
 - Explain why this would be valuable to users
 - Consider if it aligns with the project's goals
@@ -62,6 +64,7 @@ We welcome feature suggestions! Please:
 ### Code Contributions
 
 We especially welcome:
+
 - Bug fixes
 - Documentation improvements
 - Test coverage improvements
diff --git a/MANIFEST.md b/MANIFEST.md
index 837cee8..bedc65e 100644
--- a/MANIFEST.md
+++ b/MANIFEST.md
@@ -17,7 +17,7 @@ A basic `manifest.json` with just the required fields looks like this:
   "description": "A simple MCP extension", // Brief description of what the extension does
   "author": {
     // Author information (required)
-    "name": "Extension Author" // Author's name (required field)
+    "name": "Extension Author", // Author's name (required field)
   },
   "server": {
     // Server configuration (required)
@@ -28,10 +28,10 @@ A basic `manifest.json` with just the required fields looks like this:
       "command": "node", // Command to run the server
       "args": [
         // Arguments passed to the command
-        "${__dirname}/server/index.js" // ${__dirname} is replaced with the extension's directory
-      ]
-    }
-  }
+        "${__dirname}/server/index.js", // ${__dirname} is replaced with the extension's directory
+      ],
+    },
+  },
 }
 ```
 
@@ -212,12 +212,12 @@ A full `manifest.json` with most of the optional fields looks like this:
                       "type": "string"
                     }
                   }
-                },
+                }
               }
             }
           ]
         }
-      },
+      }
     }
   }
 }
@@ -254,7 +254,7 @@ A full `manifest.json` with most of the optional fields looks like this:
 - **privacy_policies**: Array of URLs to privacy policies for external services that handle user data. Required when the extension connects to external services (first- or third-party) that process user data. Each URL should link to the respective service's privacy policy document.
 - **compatibility**: Compatibility requirements (client app version, platforms, and runtime versions).
 - **user_config**: User-configurable options for the extension (see User Configuration section).
-- **_meta**: Platform-specific client integration metadata (e.g., Windows `package_family_name`, macOS bundle identifiers) enabling tighter OS/app store integration. The keys in the `_meta` object are reverse-DNS namespaced, and the values are a dictionary of platform-specific metadata.
+- **\_meta**: Platform-specific client integration metadata (e.g., Windows `package_family_name`, macOS bundle identifiers) enabling tighter OS/app store integration. The keys in the `_meta` object are reverse-DNS namespaced, and the values are a dictionary of platform-specific metadata.
 - **localization**: Location of translated strings for user-facing fields (`resources` path containing a `${locale}` placeholder and `default_locale`).
 
 ### Localization
@@ -268,15 +268,16 @@ Provide localized strings without bloating the manifest by pointing to external
 }
 ```
 
-- `resources` must include a `${locale}` placeholder. Clients resolve it relative to the server install directory. 
+- `resources` must include a `${locale}` placeholder. Clients resolve it relative to the server install directory.
   - This property is optional, and its default value is **`mcpb-resources/${locale}.json`**.
 - `default_locale` must be a valid [BCP 47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) identifier such as `en-US` or `zh-Hans`.
   - This property is optional, and its default value is `en-US`.
 - Values for the default locale stay in the main manifest; localized files only need to contain overrides.
 
-For tools and prompts, the descriptions are also localizable. 
+For tools and prompts, the descriptions are also localizable.
 
 #### Client guidelines
+
 - if a client wants to show tool or prompt descriptions in their UI, the client should look for the locale-specific description override in the corresponding per-locale file.
 - clients should only look for tools/prompts present in the manifest.json, i.e. prompts and tools that only exist in the per-locale file should be ignored.
 - Clients should apply locale fallbacks if the client/user locale is not represented by the server. For example, if the user is in the `es-UY` locale but the server does not include that per-locale file, the client should look for an approrpiate fallback, e.g. `es-MX` or `es-ES`, or fall back to the values in the manifest.
@@ -712,4 +713,3 @@ The `_generated` fields:
 - **prompts_generated**: Server generates additional prompts beyond those listed (default: false)
 
 This helps implementing apps understand that querying the server at runtime will reveal more capabilities than what's declared in the manifest.
-
diff --git a/package.json b/package.json
index 3a01cce..cec3546 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@anthropic-ai/mcpb",
   "description": "Tools for building MCP Bundles",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "type": "module",
   "main": "dist/index.js",
   "module": "dist/index.js",
@@ -27,7 +27,25 @@
       "import": "./dist/cli.js",
       "require": "./dist/cli.js"
     },
-    "./mcpb-manifest.schema.json": "./dist/mcpb-manifest.schema.json"
+    "./mcpb-manifest-v0.1.schema.json": "./dist/mcpb-manifest-v0.1.schema.json",
+    "./mcpb-manifest-v0.2.schema.json": "./dist/mcpb-manifest-v0.2.schema.json",
+    "./mcpb-manifest-v0.3.schema.json": "./dist/mcpb-manifest-v0.3.schema.json",
+    "./mcpb-manifest-latest.schema.json": "./dist/mcpb-manifest-latest.schema.json",
+    "./schemas": {
+      "types": "./dist/schemas/index.d.ts",
+      "import": "./dist/schemas/index.js",
+      "require": "./dist/schemas/index.js"
+    },
+    "./schemas/*": {
+      "types": "./dist/schemas/*.d.ts",
+      "import": "./dist/schemas/*.js",
+      "require": "./dist/schemas/*.js"
+    },
+    "./schemas-loose": {
+      "types": "./dist/schemas-loose.d.ts",
+      "import": "./dist/schemas-loose.js",
+      "require": "./dist/schemas-loose.js"
+    }
   },
   "bin": "dist/cli/cli.js",
   "files": [
@@ -81,4 +99,4 @@
     "@babel/parser": "7.27.3"
   },
   "packageManager": "yarn@4.10.3+sha512.c38cafb5c7bb273f3926d04e55e1d8c9dfa7d9c3ea1f36a4868fa028b9e5f72298f0b7f401ad5eb921749eb012eb1c3bb74bf7503df3ee43fd600d14a018266f"
-}
\ No newline at end of file
+}
diff --git a/schemas/mcpb-manifest-latest.schema.json b/schemas/mcpb-manifest-latest.schema.json
new file mode 100644
index 0000000..a2dc082
--- /dev/null
+++ b/schemas/mcpb-manifest-latest.schema.json
@@ -0,0 +1,376 @@
+{
+  "type": "object",
+  "properties": {
+    "$schema": {
+      "type": "string"
+    },
+    "dxt_version": {
+      "type": "string",
+      "const": "0.3",
+      "description": "@deprecated Use manifest_version instead"
+    },
+    "manifest_version": {
+      "type": "string",
+      "const": "0.3"
+    },
+    "name": {
+      "type": "string"
+    },
+    "display_name": {
+      "type": "string"
+    },
+    "version": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "long_description": {
+      "type": "string"
+    },
+    "author": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "email": {
+          "type": "string",
+          "format": "email"
+        },
+        "url": {
+          "type": "string",
+          "format": "uri"
+        }
+      },
+      "required": [
+        "name"
+      ],
+      "additionalProperties": false
+    },
+    "repository": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        },
+        "url": {
+          "type": "string",
+          "format": "uri"
+        }
+      },
+      "required": [
+        "type",
+        "url"
+      ],
+      "additionalProperties": false
+    },
+    "homepage": {
+      "type": "string",
+      "format": "uri"
+    },
+    "documentation": {
+      "type": "string",
+      "format": "uri"
+    },
+    "support": {
+      "type": "string",
+      "format": "uri"
+    },
+    "icon": {
+      "type": "string"
+    },
+    "icons": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "src": {
+            "type": "string"
+          },
+          "sizes": {
+            "type": "string",
+            "pattern": "^\\d+x\\d+$"
+          },
+          "theme": {
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "required": [
+          "src",
+          "sizes"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "screenshots": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "localization": {
+      "type": "object",
+      "properties": {
+        "resources": {
+          "type": "string",
+          "pattern": "\\$\\{locale\\}"
+        },
+        "default_locale": {
+          "type": "string",
+          "pattern": "^[A-Za-z0-9]{2,8}(?:-[A-Za-z0-9]{1,8})*$"
+        }
+      },
+      "required": [
+        "resources",
+        "default_locale"
+      ],
+      "additionalProperties": false
+    },
+    "server": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string",
+          "enum": [
+            "python",
+            "node",
+            "binary"
+          ]
+        },
+        "entry_point": {
+          "type": "string"
+        },
+        "mcp_config": {
+          "type": "object",
+          "properties": {
+            "command": {
+              "type": "string"
+            },
+            "args": {
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            },
+            "env": {
+              "type": "object",
+              "additionalProperties": {
+                "type": "string"
+              }
+            },
+            "platform_overrides": {
+              "type": "object",
+              "additionalProperties": {
+                "type": "object",
+                "properties": {
+                  "command": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/command"
+                  },
+                  "args": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/args"
+                  },
+                  "env": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/env"
+                  }
+                },
+                "additionalProperties": false
+              }
+            }
+          },
+          "required": [
+            "command"
+          ],
+          "additionalProperties": false
+        }
+      },
+      "required": [
+        "type",
+        "entry_point",
+        "mcp_config"
+      ],
+      "additionalProperties": false
+    },
+    "tools": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "name": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "tools_generated": {
+      "type": "boolean"
+    },
+    "prompts": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "name": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          },
+          "arguments": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            }
+          },
+          "text": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "text"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "prompts_generated": {
+      "type": "boolean"
+    },
+    "keywords": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "license": {
+      "type": "string"
+    },
+    "privacy_policies": {
+      "type": "array",
+      "items": {
+        "type": "string",
+        "format": "uri"
+      }
+    },
+    "compatibility": {
+      "type": "object",
+      "properties": {
+        "claude_desktop": {
+          "type": "string"
+        },
+        "platforms": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": [
+              "darwin",
+              "win32",
+              "linux"
+            ]
+          }
+        },
+        "runtimes": {
+          "type": "object",
+          "properties": {
+            "python": {
+              "type": "string"
+            },
+            "node": {
+              "type": "string"
+            }
+          },
+          "additionalProperties": false
+        }
+      },
+      "additionalProperties": false
+    },
+    "user_config": {
+      "type": "object",
+      "additionalProperties": {
+        "type": "object",
+        "properties": {
+          "type": {
+            "type": "string",
+            "enum": [
+              "string",
+              "number",
+              "boolean",
+              "directory",
+              "file"
+            ]
+          },
+          "title": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          },
+          "required": {
+            "type": "boolean"
+          },
+          "default": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "number"
+              },
+              {
+                "type": "boolean"
+              },
+              {
+                "type": "array",
+                "items": {
+                  "type": "string"
+                }
+              }
+            ]
+          },
+          "multiple": {
+            "type": "boolean"
+          },
+          "sensitive": {
+            "type": "boolean"
+          },
+          "min": {
+            "type": "number"
+          },
+          "max": {
+            "type": "number"
+          }
+        },
+        "required": [
+          "type",
+          "title",
+          "description"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "_meta": {
+      "type": "object",
+      "additionalProperties": {
+        "type": "object",
+        "additionalProperties": {}
+      }
+    }
+  },
+  "required": [
+    "name",
+    "version",
+    "description",
+    "author",
+    "server"
+  ],
+  "additionalProperties": false,
+  "$schema": "http://json-schema.org/draft-07/schema#"
+}
\ No newline at end of file
diff --git a/schemas/mcpb-manifest-v0.1.schema.json b/schemas/mcpb-manifest-v0.1.schema.json
new file mode 100644
index 0000000..17e6fd8
--- /dev/null
+++ b/schemas/mcpb-manifest-v0.1.schema.json
@@ -0,0 +1,327 @@
+{
+  "type": "object",
+  "properties": {
+    "$schema": {
+      "type": "string"
+    },
+    "dxt_version": {
+      "type": "string",
+      "const": "0.1",
+      "description": "@deprecated Use manifest_version instead"
+    },
+    "manifest_version": {
+      "type": "string",
+      "const": "0.1"
+    },
+    "name": {
+      "type": "string"
+    },
+    "display_name": {
+      "type": "string"
+    },
+    "version": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "long_description": {
+      "type": "string"
+    },
+    "author": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "email": {
+          "type": "string",
+          "format": "email"
+        },
+        "url": {
+          "type": "string",
+          "format": "uri"
+        }
+      },
+      "required": [
+        "name"
+      ],
+      "additionalProperties": false
+    },
+    "repository": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        },
+        "url": {
+          "type": "string",
+          "format": "uri"
+        }
+      },
+      "required": [
+        "type",
+        "url"
+      ],
+      "additionalProperties": false
+    },
+    "homepage": {
+      "type": "string",
+      "format": "uri"
+    },
+    "documentation": {
+      "type": "string",
+      "format": "uri"
+    },
+    "support": {
+      "type": "string",
+      "format": "uri"
+    },
+    "icon": {
+      "type": "string"
+    },
+    "screenshots": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "server": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string",
+          "enum": [
+            "python",
+            "node",
+            "binary"
+          ]
+        },
+        "entry_point": {
+          "type": "string"
+        },
+        "mcp_config": {
+          "type": "object",
+          "properties": {
+            "command": {
+              "type": "string"
+            },
+            "args": {
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            },
+            "env": {
+              "type": "object",
+              "additionalProperties": {
+                "type": "string"
+              }
+            },
+            "platform_overrides": {
+              "type": "object",
+              "additionalProperties": {
+                "type": "object",
+                "properties": {
+                  "command": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/command"
+                  },
+                  "args": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/args"
+                  },
+                  "env": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/env"
+                  }
+                },
+                "additionalProperties": false
+              }
+            }
+          },
+          "required": [
+            "command"
+          ],
+          "additionalProperties": false
+        }
+      },
+      "required": [
+        "type",
+        "entry_point",
+        "mcp_config"
+      ],
+      "additionalProperties": false
+    },
+    "tools": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "name": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "tools_generated": {
+      "type": "boolean"
+    },
+    "prompts": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "name": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          },
+          "arguments": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            }
+          },
+          "text": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "text"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "prompts_generated": {
+      "type": "boolean"
+    },
+    "keywords": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "license": {
+      "type": "string"
+    },
+    "compatibility": {
+      "type": "object",
+      "properties": {
+        "claude_desktop": {
+          "type": "string"
+        },
+        "platforms": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": [
+              "darwin",
+              "win32",
+              "linux"
+            ]
+          }
+        },
+        "runtimes": {
+          "type": "object",
+          "properties": {
+            "python": {
+              "type": "string"
+            },
+            "node": {
+              "type": "string"
+            }
+          },
+          "additionalProperties": false
+        }
+      },
+      "additionalProperties": false
+    },
+    "user_config": {
+      "type": "object",
+      "additionalProperties": {
+        "type": "object",
+        "properties": {
+          "type": {
+            "type": "string",
+            "enum": [
+              "string",
+              "number",
+              "boolean",
+              "directory",
+              "file"
+            ]
+          },
+          "title": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          },
+          "required": {
+            "type": "boolean"
+          },
+          "default": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "number"
+              },
+              {
+                "type": "boolean"
+              },
+              {
+                "type": "array",
+                "items": {
+                  "type": "string"
+                }
+              }
+            ]
+          },
+          "multiple": {
+            "type": "boolean"
+          },
+          "sensitive": {
+            "type": "boolean"
+          },
+          "min": {
+            "type": "number"
+          },
+          "max": {
+            "type": "number"
+          }
+        },
+        "required": [
+          "type",
+          "title",
+          "description"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "_meta": {
+      "type": "object",
+      "additionalProperties": {
+        "type": "object",
+        "additionalProperties": {}
+      }
+    }
+  },
+  "required": [
+    "name",
+    "version",
+    "description",
+    "author",
+    "server"
+  ],
+  "additionalProperties": false,
+  "$schema": "http://json-schema.org/draft-07/schema#"
+}
\ No newline at end of file
diff --git a/schemas/mcpb-manifest.schema.json b/schemas/mcpb-manifest-v0.2.schema.json
similarity index 100%
rename from schemas/mcpb-manifest.schema.json
rename to schemas/mcpb-manifest-v0.2.schema.json
diff --git a/schemas/mcpb-manifest-v0.3.schema.json b/schemas/mcpb-manifest-v0.3.schema.json
new file mode 100644
index 0000000..a2dc082
--- /dev/null
+++ b/schemas/mcpb-manifest-v0.3.schema.json
@@ -0,0 +1,376 @@
+{
+  "type": "object",
+  "properties": {
+    "$schema": {
+      "type": "string"
+    },
+    "dxt_version": {
+      "type": "string",
+      "const": "0.3",
+      "description": "@deprecated Use manifest_version instead"
+    },
+    "manifest_version": {
+      "type": "string",
+      "const": "0.3"
+    },
+    "name": {
+      "type": "string"
+    },
+    "display_name": {
+      "type": "string"
+    },
+    "version": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "long_description": {
+      "type": "string"
+    },
+    "author": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "email": {
+          "type": "string",
+          "format": "email"
+        },
+        "url": {
+          "type": "string",
+          "format": "uri"
+        }
+      },
+      "required": [
+        "name"
+      ],
+      "additionalProperties": false
+    },
+    "repository": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        },
+        "url": {
+          "type": "string",
+          "format": "uri"
+        }
+      },
+      "required": [
+        "type",
+        "url"
+      ],
+      "additionalProperties": false
+    },
+    "homepage": {
+      "type": "string",
+      "format": "uri"
+    },
+    "documentation": {
+      "type": "string",
+      "format": "uri"
+    },
+    "support": {
+      "type": "string",
+      "format": "uri"
+    },
+    "icon": {
+      "type": "string"
+    },
+    "icons": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "src": {
+            "type": "string"
+          },
+          "sizes": {
+            "type": "string",
+            "pattern": "^\\d+x\\d+$"
+          },
+          "theme": {
+            "type": "string",
+            "minLength": 1
+          }
+        },
+        "required": [
+          "src",
+          "sizes"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "screenshots": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "localization": {
+      "type": "object",
+      "properties": {
+        "resources": {
+          "type": "string",
+          "pattern": "\\$\\{locale\\}"
+        },
+        "default_locale": {
+          "type": "string",
+          "pattern": "^[A-Za-z0-9]{2,8}(?:-[A-Za-z0-9]{1,8})*$"
+        }
+      },
+      "required": [
+        "resources",
+        "default_locale"
+      ],
+      "additionalProperties": false
+    },
+    "server": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string",
+          "enum": [
+            "python",
+            "node",
+            "binary"
+          ]
+        },
+        "entry_point": {
+          "type": "string"
+        },
+        "mcp_config": {
+          "type": "object",
+          "properties": {
+            "command": {
+              "type": "string"
+            },
+            "args": {
+              "type": "array",
+              "items": {
+                "type": "string"
+              }
+            },
+            "env": {
+              "type": "object",
+              "additionalProperties": {
+                "type": "string"
+              }
+            },
+            "platform_overrides": {
+              "type": "object",
+              "additionalProperties": {
+                "type": "object",
+                "properties": {
+                  "command": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/command"
+                  },
+                  "args": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/args"
+                  },
+                  "env": {
+                    "$ref": "#/properties/server/properties/mcp_config/properties/env"
+                  }
+                },
+                "additionalProperties": false
+              }
+            }
+          },
+          "required": [
+            "command"
+          ],
+          "additionalProperties": false
+        }
+      },
+      "required": [
+        "type",
+        "entry_point",
+        "mcp_config"
+      ],
+      "additionalProperties": false
+    },
+    "tools": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "name": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "tools_generated": {
+      "type": "boolean"
+    },
+    "prompts": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "name": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          },
+          "arguments": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            }
+          },
+          "text": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "name",
+          "text"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "prompts_generated": {
+      "type": "boolean"
+    },
+    "keywords": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    },
+    "license": {
+      "type": "string"
+    },
+    "privacy_policies": {
+      "type": "array",
+      "items": {
+        "type": "string",
+        "format": "uri"
+      }
+    },
+    "compatibility": {
+      "type": "object",
+      "properties": {
+        "claude_desktop": {
+          "type": "string"
+        },
+        "platforms": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": [
+              "darwin",
+              "win32",
+              "linux"
+            ]
+          }
+        },
+        "runtimes": {
+          "type": "object",
+          "properties": {
+            "python": {
+              "type": "string"
+            },
+            "node": {
+              "type": "string"
+            }
+          },
+          "additionalProperties": false
+        }
+      },
+      "additionalProperties": false
+    },
+    "user_config": {
+      "type": "object",
+      "additionalProperties": {
+        "type": "object",
+        "properties": {
+          "type": {
+            "type": "string",
+            "enum": [
+              "string",
+              "number",
+              "boolean",
+              "directory",
+              "file"
+            ]
+          },
+          "title": {
+            "type": "string"
+          },
+          "description": {
+            "type": "string"
+          },
+          "required": {
+            "type": "boolean"
+          },
+          "default": {
+            "anyOf": [
+              {
+                "type": "string"
+              },
+              {
+                "type": "number"
+              },
+              {
+                "type": "boolean"
+              },
+              {
+                "type": "array",
+                "items": {
+                  "type": "string"
+                }
+              }
+            ]
+          },
+          "multiple": {
+            "type": "boolean"
+          },
+          "sensitive": {
+            "type": "boolean"
+          },
+          "min": {
+            "type": "number"
+          },
+          "max": {
+            "type": "number"
+          }
+        },
+        "required": [
+          "type",
+          "title",
+          "description"
+        ],
+        "additionalProperties": false
+      }
+    },
+    "_meta": {
+      "type": "object",
+      "additionalProperties": {
+        "type": "object",
+        "additionalProperties": {}
+      }
+    }
+  },
+  "required": [
+    "name",
+    "version",
+    "description",
+    "author",
+    "server"
+  ],
+  "additionalProperties": false,
+  "$schema": "http://json-schema.org/draft-07/schema#"
+}
\ No newline at end of file
diff --git a/scripts/build-mcpb-schema.js b/scripts/build-mcpb-schema.js
index a359274..a62fcdb 100644
--- a/scripts/build-mcpb-schema.js
+++ b/scripts/build-mcpb-schema.js
@@ -1,33 +1,48 @@
 import {
-  McpbManifestSchema,
+  McpbManifestSchema as McpbManifestSchemaLatest,
   McpbSignatureInfoSchema,
 } from "../dist/schemas/latest.js";
+import { McpbManifestSchema as McpbManifestSchema_v0_1 } from "../dist/schemas/0.1.js";
+import { McpbManifestSchema as McpbManifestSchema_v0_2 } from "../dist/schemas/0.2.js";
+import { McpbManifestSchema as McpbManifestSchema_v0_3 } from "../dist/schemas/0.3.js";
 import { zodToJsonSchema } from "zod-to-json-schema";
 import fs from "node:fs/promises";
 import path from "node:path";
 
-const schemasToWrite = {
-  "mcpb-manifest": McpbManifestSchema,
+const distDir = path.join(import.meta.dirname, "../dist");
+const schemasDir = path.join(import.meta.dirname, "../schemas");
+
+// Versioned manifest schemas
+const versionedManifestSchemas = {
+  "mcpb-manifest-v0.1": McpbManifestSchema_v0_1,
+  "mcpb-manifest-v0.2": McpbManifestSchema_v0_2,
+  "mcpb-manifest-v0.3": McpbManifestSchema_v0_3,
+  "mcpb-manifest-latest": McpbManifestSchemaLatest,
+};
+
+// Other schemas
+const otherSchemas = {
   "mcpb-signature-info": McpbSignatureInfoSchema,
 };
 
-const distDir = path.join(import.meta.dirname, "../dist");
-const schemasDir = path.join(import.meta.dirname, "../schemas");
+const allSchemas = { ...versionedManifestSchemas, ...otherSchemas };
 
 // Generate all schemas to dist/
 await fs.mkdir(distDir, { recursive: true });
-for (const key in schemasToWrite) {
-  const schema = zodToJsonSchema(schemasToWrite[key]);
+for (const [key, schema] of Object.entries(allSchemas)) {
+  const jsonSchema = zodToJsonSchema(schema);
   const filePath = path.join(distDir, `${key}.schema.json`);
-  await fs.writeFile(filePath, JSON.stringify(schema, null, 2), {
+  await fs.writeFile(filePath, JSON.stringify(jsonSchema, null, 2), {
     encoding: "utf8",
   });
 }
 
-// Generate only manifest schema to schemas/
+// Generate all versioned manifest schemas to schemas/
 await fs.mkdir(schemasDir, { recursive: true });
-const manifestSchema = zodToJsonSchema(McpbManifestSchema);
-const manifestPath = path.join(schemasDir, "mcpb-manifest.schema.json");
-await fs.writeFile(manifestPath, JSON.stringify(manifestSchema, null, 2), {
-  encoding: "utf8",
-});
+for (const [key, schema] of Object.entries(versionedManifestSchemas)) {
+  const jsonSchema = zodToJsonSchema(schema);
+  const filePath = path.join(schemasDir, `${key}.schema.json`);
+  await fs.writeFile(filePath, JSON.stringify(jsonSchema, null, 2), {
+    encoding: "utf8",
+  });
+}
diff --git a/src/schemas/0.1.ts b/src/schemas/0.1.ts
index 3ff5453..4d77ccc 100644
--- a/src/schemas/0.1.ts
+++ b/src/schemas/0.1.ts
@@ -98,7 +98,7 @@ export const McpbManifestSchema = z
     screenshots: z.array(z.string()).optional(),
     server: McpbManifestServerSchema,
     tools: z.array(McpbManifestToolSchema).optional(),
-    tools_generated: z.boolean().optional(),  
+    tools_generated: z.boolean().optional(),
     prompts: z.array(McpbManifestPromptSchema).optional(),
     prompts_generated: z.boolean().optional(),
     keywords: z.array(z.string()).optional(),
diff --git a/src/schemas/any.ts b/src/schemas/any.ts
new file mode 100644
index 0000000..bd7cec8
--- /dev/null
+++ b/src/schemas/any.ts
@@ -0,0 +1,15 @@
+import * as z from "zod";
+
+import * as v0_1 from "./0.1.js";
+import * as v0_2 from "./0.2.js";
+import * as v0_3 from "./0.3.js";
+
+/**
+ * Union schema that accepts any supported manifest version (0.1, 0.2, 0.3).
+ * Use this when you need to validate manifests of any version.
+ */
+export const McpbManifestSchema = z.union([
+  v0_1.McpbManifestSchema,
+  v0_2.McpbManifestSchema,
+  v0_3.McpbManifestSchema,
+]);
diff --git a/src/schemas/index.ts b/src/schemas/index.ts
index 1b7c64b..3729f0e 100644
--- a/src/schemas/index.ts
+++ b/src/schemas/index.ts
@@ -1,6 +1,7 @@
 export * as v0_1 from "./0.1.js";
 export * as v0_2 from "./0.2.js";
 export * as v0_3 from "./0.3.js";
+export * as any from "./any.js";
 export * as latest from "./latest.js";
 export {
   MANIFEST_VERSION as LATEST_MANIFEST_VERSION,
diff --git a/test/schemas.test.ts b/test/schemas.test.ts
index 325af17..d05551a 100644
--- a/test/schemas.test.ts
+++ b/test/schemas.test.ts
@@ -335,5 +335,4 @@ describe("McpbManifestSchema", () => {
       expect(result.success).toBe(true);
     });
   });
-
 });
diff --git a/test/valid-manifest-0.2.json b/test/valid-manifest-0.2.json
index c6f5fdb..51130df 100644
--- a/test/valid-manifest-0.2.json
+++ b/test/valid-manifest-0.2.json
@@ -1,21 +1,19 @@
 {
-    "manifest_version": "0.2",
-    "name": "legacy-extension",
-    "display_name": "Legacy Extension",
-    "version": "1.0.0",
-    "description": "An extension that predates 0.3",
-    "author": {
-        "name": "Legacy Author",
-        "email": "legacy@example.com"
-    },
-    "server": {
-        "type": "node",
-        "entry_point": "server/index.js",
-        "mcp_config": {
-            "command": "node",
-            "args": [
-                "${__dirname}/server/index.js"
-            ]
-        }
+  "manifest_version": "0.2",
+  "name": "legacy-extension",
+  "display_name": "Legacy Extension",
+  "version": "1.0.0",
+  "description": "An extension that predates 0.3",
+  "author": {
+    "name": "Legacy Author",
+    "email": "legacy@example.com"
+  },
+  "server": {
+    "type": "node",
+    "entry_point": "server/index.js",
+    "mcp_config": {
+      "command": "node",
+      "args": ["${__dirname}/server/index.js"]
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/test/valid-manifest.json b/test/valid-manifest.json
index c833deb..fcc9b9b 100644
--- a/test/valid-manifest.json
+++ b/test/valid-manifest.json
@@ -13,9 +13,7 @@
     "entry_point": "server/index.js",
     "mcp_config": {
       "command": "node",
-      "args": [
-        "${__dirname}/server/index.js"
-      ]
+      "args": ["${__dirname}/server/index.js"]
     }
   }
-}
\ No newline at end of file
+}