Add extracted source directory and README navigation

extracted-source/node_modules/@modelcontextprotocol/sdk/dist/esm/validation/ajv-provider.js

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+/**
+ * AJV-based JSON Schema validator provider
+ */
+import Ajv from 'ajv';
+import _addFormats from 'ajv-formats';
+function createDefaultAjvInstance() {
+    const ajv = new Ajv({
+        strict: false,
+        validateFormats: true,
+        validateSchema: false,
+        allErrors: true
+    });
+    const addFormats = _addFormats;
+    addFormats(ajv);
+    return ajv;
+}
+/**
+ * @example
+ * ```typescript
+ * // Use with default AJV instance (recommended)
+ * import { AjvJsonSchemaValidator } from '@modelcontextprotocol/sdk/validation/ajv';
+ * const validator = new AjvJsonSchemaValidator();
+ *
+ * // Use with custom AJV instance
+ * import { Ajv } from 'ajv';
+ * const ajv = new Ajv({ strict: true, allErrors: true });
+ * const validator = new AjvJsonSchemaValidator(ajv);
+ * ```
+ */
+export class AjvJsonSchemaValidator {
+    /**
+     * Create an AJV validator
+     *
+     * @param ajv - Optional pre-configured AJV instance. If not provided, a default instance will be created.
+     *
+     * @example
+     * ```typescript
+     * // Use default configuration (recommended for most cases)
+     * import { AjvJsonSchemaValidator } from '@modelcontextprotocol/sdk/validation/ajv';
+     * const validator = new AjvJsonSchemaValidator();
+     *
+     * // Or provide custom AJV instance for advanced configuration
+     * import { Ajv } from 'ajv';
+     * import addFormats from 'ajv-formats';
+     *
+     * const ajv = new Ajv({ validateFormats: true });
+     * addFormats(ajv);
+     * const validator = new AjvJsonSchemaValidator(ajv);
+     * ```
+     */
+    constructor(ajv) {
+        this._ajv = ajv ?? createDefaultAjvInstance();
+    }
+    /**
+     * Create a validator for the given JSON Schema
+     *
+     * The validator is compiled once and can be reused multiple times.
+     * If the schema has an $id, it will be cached by AJV automatically.
+     *
+     * @param schema - Standard JSON Schema object
+     * @returns A validator function that validates input data
+     */
+    getValidator(schema) {
+        // Check if schema has $id and is already compiled/cached
+        const ajvValidator = '$id' in schema && typeof schema.$id === 'string'
+            ? (this._ajv.getSchema(schema.$id) ?? this._ajv.compile(schema))
+            : this._ajv.compile(schema);
+        return (input) => {
+            const valid = ajvValidator(input);
+            if (valid) {
+                return {
+                    valid: true,
+                    data: input,
+                    errorMessage: undefined
+                };
+            }
+            else {
+                return {
+                    valid: false,
+                    data: undefined,
+                    errorMessage: this._ajv.errorsText(ajvValidator.errors)
+                };
+            }
+        };
+    }
+}
+//# sourceMappingURL=ajv-provider.js.map