docs: fix grammar, typos, and style in JSDoc comments

Fix article usage ("a OAuth2" → "an OAuth2"), typos (`miliseconds` →
`milliseconds`, "add have" → "have"), grammar ("can be associate" → "can
be associated", "required to specified" → "required to be specified"),
and style consistency ("JSON RPC" → "JSON-RPC", "retrocompatibility" →
"backward compatibility").

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jonathanhefner

packages/client/src/client/auth.ts

@@ -60,7 +60,7 @@ export interface OAuthClientProvider {
     get clientMetadata(): OAuthClientMetadata;
 
     /**
-     * Returns a OAuth2 state parameter.
+     * Returns an OAuth2 state parameter.
      */
     state?(): string | Promise<string>;
 

packages/client/src/client/authExtensions.ts

@@ -30,7 +30,7 @@ export function createPrivateKeyJwtAuth(options: {
         // Lazy import to avoid heavy dependency unless used
         if (globalThis.crypto === undefined) {
             throw new TypeError(
-                'crypto is not available, please ensure you add have Web Crypto API support for older Node.js versions (see https://github.com/modelcontextprotocol/typescript-sdk#nodejs-web-crypto-globalthiscrypto-compatibility)'
+                'crypto is not available, please ensure you have Web Crypto API support for older Node.js versions (see https://github.com/modelcontextprotocol/typescript-sdk#nodejs-web-crypto-globalthiscrypto-compatibility)'
             );
         }
 

packages/client/src/client/streamableHttp.ts

@@ -44,7 +44,7 @@ export interface StartSSEOptions {
 
     /**
      * Override Message ID to associate with the replay message
-     * so that response can be associate with the new resumed request.
+     * so that the response can be associated with the new resumed request.
      */
     replayMessageId?: string | number;
 }
@@ -255,7 +255,7 @@ export class StreamableHTTPClientTransport implements Transport {
     }
 
     /**
-     * Calculates the next reconnection delay using  backoff algorithm
+     * Calculates the next reconnection delay using a backoff algorithm
      *
      * @param attempt Current reconnection attempt count for the specific stream
      * @returns Time to wait in milliseconds before next reconnection attempt
@@ -463,7 +463,7 @@ export class StreamableHTTPClientTransport implements Transport {
             const { resumptionToken, onresumptiontoken } = options || {};
 
             if (resumptionToken) {
-                // If we have at last event ID, we need to reconnect the SSE stream
+                // If we have a last event ID, we need to reconnect the SSE stream
                 this._startOrAuthSse({ resumptionToken, replayMessageId: isJSONRPCRequest(message) ? message.id : undefined }).catch(
                     error => this.onerror?.(error)
                 );

packages/client/test/client/authExtensions.test.ts

@@ -191,7 +191,7 @@ describe('createPrivateKeyJwtAuth', () => {
             const params = new URLSearchParams();
 
             await expect(addClientAuth(new Headers(), params, 'https://auth.example.com/token', undefined)).rejects.toThrow(
-                'crypto is not available, please ensure you add have Web Crypto API support for older Node.js versions'
+                'crypto is not available, please ensure you have Web Crypto API support for older Node.js versions'
             );
         } finally {
             // Restore original crypto to avoid affecting other tests

packages/core/src/shared/auth.ts

@@ -148,7 +148,7 @@ export const OAuthErrorResponseSchema = z.object({
 });
 
 /**
- * Optional version of SafeUrlSchema that allows empty string for retrocompatibility on tos_uri and logo_uri
+ * Optional version of SafeUrlSchema that allows empty string for backward compatibility on tos_uri and logo_uri
  */
 // eslint-disable-next-line unicorn/no-useless-undefined
 export const OptionalSafeUrlSchema = SafeUrlSchema.optional().or(z.literal('').transform(() => undefined));

packages/core/src/shared/protocol.ts

@@ -120,7 +120,7 @@ export type ProtocolOptions = {
 };
 
 /**
- * The default request timeout, in miliseconds.
+ * The default request timeout, in milliseconds.
  */
 export const DEFAULT_REQUEST_TIMEOUT_MSEC = 60_000;
 
@@ -1023,7 +1023,7 @@ export abstract class Protocol<ContextT extends BaseContext> {
     protected abstract assertTaskCapability(method: string): void;
 
     /**
-     * A method to check if task handler is supported by the local side, for the given method to be handled.
+     * A method to check if a task handler is supported by the local side, for the given method to be handled.
      *
      * This should be implemented by subclasses.
      */

packages/core/src/types/types.ts

@@ -1187,7 +1187,7 @@ export const ImageContentSchema = z.object({
 });
 
 /**
- * An Audio provided to or from an LLM.
+ * Audio content provided to or from an LLM.
  */
 export const AudioContentSchema = z.object({
     type: z.literal('audio'),
@@ -1340,7 +1340,7 @@ export const ToolAnnotationsSchema = z.object({
 
     /**
      * If true, calling the tool repeatedly with the same arguments
-     * will have no additional effect on the its environment.
+     * will have no additional effect on its environment.
      *
      * (This property is meaningful only when `readOnlyHint == false`)
      *
@@ -2067,7 +2067,7 @@ export const ElicitResultSchema = ResultSchema.extend({
     /**
      * The user action in response to the elicitation.
      * - "accept": User submitted the form/confirmed the action
-     * - "decline": User explicitly decline the action
+     * - "decline": User explicitly declined the action
      * - "cancel": User dismissed without making an explicit choice
      */
     action: z.enum(['accept', 'decline', 'cancel']),

packages/middleware/node/src/streamableHttp.ts

@@ -1,5 +1,5 @@
 /**
- * Node.js HTTP Streamable HTTP Server Transport
+ * Node.js Streamable HTTP Server Transport
  *
  * This is a thin wrapper around `WebStandardStreamableHTTPServerTransport` that provides
  * compatibility with Node.js HTTP server (IncomingMessage/ServerResponse).

packages/server/src/server/mcp.ts

@@ -886,10 +886,10 @@ export class McpServer {
 
     /**
      * Sends a logging message to the client, if connected.
-     * Note: You only need to send the parameters object, not the entire JSON RPC message
+     * Note: You only need to send the parameters object, not the entire JSON-RPC message.
      * @see LoggingMessageNotification
      * @param params
-     * @param sessionId optional for stateless and backward compatibility
+     * @param sessionId Optional for stateless transports and backward compatibility.
      */
     async sendLoggingMessage(params: LoggingMessageNotification['params'], sessionId?: string) {
         return this.server.sendLoggingMessage(params, sessionId);
@@ -943,7 +943,7 @@ export class ResourceTemplate {
         uriTemplate: string | UriTemplate,
         private _callbacks: {
             /**
-             * A callback to list all resources matching this template. This is required to specified, even if `undefined`, to avoid accidentally forgetting resource listing.
+             * A callback to list all resources matching this template. This is required to be specified, even if `undefined`, to avoid accidentally forgetting resource listing.
              */
             list: ListResourcesCallback | undefined;
 

packages/server/src/server/server.ts

@@ -631,10 +631,10 @@ export class Server extends Protocol<ServerContext> {
 
     /**
      * Sends a logging message to the client, if connected.
-     * Note: You only need to send the parameters object, not the entire JSON RPC message
+     * Note: You only need to send the parameters object, not the entire JSON-RPC message.
      * @see LoggingMessageNotification
      * @param params
-     * @param sessionId optional for stateless and backward compatibility
+     * @param sessionId Optional for stateless transports and backward compatibility.
      */
     async sendLoggingMessage(params: LoggingMessageNotification['params'], sessionId?: string) {
         if (this._capabilities.logging && !this.isMessageIgnored(params.level, sessionId)) {