refactor: rename strict to strictInputSchemaValidation

Renamed parameter from `strict` to `strictInputSchemaValidation` for clarity.
The longer name makes it more explicit that this validation applies specifically
to the input schema and helps distinguish it from other types of strictness.

Updated:
- src/server/mcp.ts: Parameter in registerTool config and _createRegisteredTool signature
- src/server/mcp.test.ts: Test using the renamed parameter
- README.md: Documentation examples and notes

Changes linted and tested.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: Adam Bloomston

README.md

@@ -1118,13 +1118,13 @@ Control how tools handle parameter validation errors and unexpected inputs:
 // Strict validation - catches typos and unexpected parameters immediately
 const devTool = server.registerTool("dev-tool", {
   inputSchema: { userName: z.string(), itemCount: z.number() },
-  strict: true  // Reject { username: "test", itemcount: 42 }
+  strictInputSchemaValidation: true  // Reject { username: "test", itemcount: 42 }
 }, handler);
 
 // Lenient validation (default) - maintains backwards compatibility with existing clients
 const prodTool = server.registerTool("prod-tool", {
   inputSchema: { userName: z.string().optional(), itemCount: z.number().optional() },
-  strict: false  // Accept extra parameters for backwards compatibility with clients that may send additional fields
+  strictInputSchemaValidation: false  // Accept extra parameters for backwards compatibility with clients that may send additional fields
 }, handler);
 ```
 
@@ -1133,7 +1133,7 @@ const prodTool = server.registerTool("prod-tool", {
 - Production APIs: Ensure clients send only expected parameters  
 - Security-sensitive tools: Prevent injection of unexpected data
 
-**Note:** The `strict` parameter is only available in `registerTool()`. The legacy `tool()` method uses lenient validation for backward compatibility.
+**Note:** The `strictInputSchemaValidation` parameter is only available in `registerTool()`. The legacy `tool()` method uses lenient validation for backward compatibility.
 
 ### Low-Level Server
 

src/server/mcp.test.ts

@@ -4141,7 +4141,7 @@ describe('elicitInput()', () => {
             'test-strict',
             {
                 inputSchema: { userName: z.string().optional(), itemCount: z.number().optional() },
-                strict: true
+                strictInputSchemaValidation: true
             },
             async ({ userName, itemCount }) => ({
                 content: [{ type: 'text', text: `${userName || 'none'}: ${itemCount || 0}` }]

src/server/mcp.ts

@@ -647,14 +647,14 @@ export class McpServer {
         inputSchema: ZodRawShape | undefined,
         outputSchema: ZodRawShape | undefined,
         annotations: ToolAnnotations | undefined,
-        strict: boolean | undefined,
+        strictInputSchemaValidation: boolean | undefined,
         _meta: Record<string, unknown> | undefined,
         callback: ToolCallback<ZodRawShape | undefined>
     ): RegisteredTool {
         const registeredTool: RegisteredTool = {
             title,
             description,
-            inputSchema: inputSchema === undefined ? undefined : strict === true ? z.object(inputSchema).strict() : z.object(inputSchema),
+            inputSchema: inputSchema === undefined ? undefined : strictInputSchemaValidation === true ? z.object(inputSchema).strict() : z.object(inputSchema),
             outputSchema: outputSchema === undefined ? undefined : z.object(outputSchema),
             annotations,
             _meta,
@@ -795,7 +795,7 @@ export class McpServer {
             inputSchema?: InputArgs;
             outputSchema?: OutputArgs;
             annotations?: ToolAnnotations;
-            strict?: boolean;
+            strictInputSchemaValidation?: boolean;
             _meta?: Record<string, unknown>;
         },
         cb: ToolCallback<InputArgs>
@@ -804,7 +804,7 @@ export class McpServer {
             throw new Error(`Tool ${name} is already registered`);
         }
 
-        const { title, description, inputSchema, outputSchema, annotations, strict, _meta } = config;
+        const { title, description, inputSchema, outputSchema, annotations, strictInputSchemaValidation, _meta } = config;
 
         return this._createRegisteredTool(
             name,
@@ -813,7 +813,7 @@ export class McpServer {
             inputSchema,
             outputSchema,
             annotations,
-            strict,
+            strictInputSchemaValidation,
             _meta,
             cb as ToolCallback<ZodRawShape | undefined>
         );