fix(mcp): handle client notifications

README.md

@@ -257,7 +257,7 @@ The default import stays small. Add the other pieces only when that screen needs
 | 📡 Schedules | `@crup/react-timer-hook/schedules` | Polling, cadence callbacks, overdue timing context | 8.62 kB | 3.02 kB | 2.78 kB |
 | 🧩 Duration | `@crup/react-timer-hook/duration` | `days`, `hours`, `minutes`, `seconds`, `milliseconds` | 318 B | 224 B | 192 B |
 | 🔎 Diagnostics | `@crup/react-timer-hook/diagnostics` | Optional lifecycle and schedule event logging | 105 B | 115 B | 90 B |
-| 🤖 MCP docs server | `react-timer-hook-mcp` | Optional local docs context for MCP clients and coding agents | 6.69 kB | 2.60 kB | 2.25 kB |
+| 🤖 MCP docs server | `react-timer-hook-mcp` | Optional local docs context for MCP clients and coding agents | 6.95 kB | 2.72 kB | 2.36 kB |
 
 CI writes a size summary to the GitHub Actions UI and posts bundle-size reports on pull requests.
 
@@ -308,11 +308,11 @@ react-timer-hook://recipes
 
 It also exposes MCP tools that editors are more likely to call directly:
 
-```txt
-get_api_docs
-get_recipe
-search_docs
-```
+| Tool | Title | Description |
+| --- | --- | --- |
+| `get_api_docs` | Get API docs | Returns compact API notes for `@crup/react-timer-hook`. |
+| `get_recipe` | Get recipe | Returns guidance for a named recipe or use case. |
+| `search_docs` | Search docs | Searches API and recipe notes for a query. |
 
 ## Contributing
 

docs-site/docs/ai.mdx

@@ -66,11 +66,11 @@ react-timer-hook://recipes
 
 It also exposes callable tools for MCP clients that prefer tool calls over resource reads:
 
-```txt
-get_api_docs
-get_recipe
-search_docs
-```
+| Tool | Title | Description |
+| --- | --- | --- |
+| `get_api_docs` | Get API docs | Returns compact API notes for `@crup/react-timer-hook`. |
+| `get_recipe` | Get recipe | Returns guidance for a named recipe or use case. |
+| `search_docs` | Search docs | Searches API and recipe notes for a query. |
 
 Verify locally:
 

docs-site/static/llms-full.txt

@@ -105,9 +105,9 @@ Local docs MCP server:
 The package bundles the MCP server at node_modules/@crup/react-timer-hook/dist/mcp/server.js and exposes it through the react-timer-hook-mcp bin.
 
 MCP tools:
-- get_api_docs
-- get_recipe
-- search_docs
+- get_api_docs: Get API docs. Returns compact API notes for @crup/react-timer-hook.
+- get_recipe: Get recipe. Returns guidance for a named recipe or use case.
+- search_docs: Search docs. Searches API and recipe notes for a query.
 
 ## Boundaries
 

mcp/server.mjs

@@ -94,6 +94,7 @@ const recipes = {
 const tools = [
   {
     name: 'get_api_docs',
+    title: 'Get API docs',
     description: 'Return the compact API notes for @crup/react-timer-hook.',
     inputSchema: {
       type: 'object',
@@ -103,6 +104,7 @@ const tools = [
   },
   {
     name: 'get_recipe',
+    title: 'Get recipe',
     description: 'Return guidance for a named recipe or use case.',
     inputSchema: {
       type: 'object',
@@ -118,6 +120,7 @@ const tools = [
   },
   {
     name: 'search_docs',
+    title: 'Search docs',
     description: 'Search API and recipe notes for a query.',
     inputSchema: {
       type: 'object',
@@ -146,6 +149,12 @@ rl.on('line', line => {
   }
 
   const { id, method, params } = request;
+  const hasId = Object.hasOwn(request, 'id');
+
+  if (!method) {
+    if (hasId) respondError(id, -32600, 'Invalid request: missing method.');
+    return;
+  }
 
   if (method === 'initialize') {
     respond(id, {
@@ -156,6 +165,15 @@ rl.on('line', line => {
     return;
   }
 
+  if (method === 'notifications/initialized' || method.startsWith('notifications/')) {
+    return;
+  }
+
+  if (method === 'ping') {
+    if (hasId) respond(id, {});
+    return;
+  }
+
   if (method === 'resources/list') {
     respond(id, {
       resources: Object.entries(resources).map(([uri, resource]) => ({
@@ -231,7 +249,7 @@ rl.on('line', line => {
     return;
   }
 
-  respondError(id, -32601, `Method not found: ${method}`);
+  if (hasId) respondError(id, -32601, `Method not found: ${method}`);
 });
 
 function respond(id, result) {
@@ -243,6 +261,7 @@ function respondTool(id, text) {
 }
 
 function respondError(id, code, message) {
+  if (id === undefined) return;
   process.stdout.write(`${JSON.stringify({ jsonrpc: '2.0', id, error: { code, message } })}\n`);
 }
 

scripts/check-mcp-server.mjs

@@ -26,6 +26,7 @@ child.stderr.on('data', chunk => {
 child.stdin.end(
   [
     JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'initialize', params: {} }),
+    JSON.stringify({ jsonrpc: '2.0', method: 'notifications/initialized', params: {} }),
     JSON.stringify({ jsonrpc: '2.0', id: 2, method: 'resources/list', params: {} }),
     JSON.stringify({
       jsonrpc: '2.0',
@@ -86,7 +87,10 @@ child.on('close', code => {
     process.exit(1);
   }
 
-  if (!tools.some(tool => tool.name === 'get_recipe') || !tools.some(tool => tool.name === 'search_docs')) {
+  if (
+    !tools.some(tool => tool.name === 'get_recipe' && tool.title === 'Get recipe') ||
+    !tools.some(tool => tool.name === 'search_docs' && tool.title === 'Search docs')
+  ) {
     console.error('MCP tools list is missing expected docs tools.');
     process.exit(1);
   }