Skip to content

Capability notification for the MCP Server #334

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
cliffhall merged 5 commits into from
Apr 19, 2025
Merged

Capability notification for the MCP Server #334

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
b5e6d7b
add server.getVersion()
m-paternostro Apr 13, 2025
f5b4254
event notifier
m-paternostro Apr 13, 2025
b2fea38
capability event
m-paternostro Apr 14, 2025
112eed9
example and more documentation
m-paternostro Apr 14, 2025
94759c3
use more strongly typed examples
m-paternostro Apr 19, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 16 additions & 1 deletion src/examples/server/simpleStreamableHttp.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,21 @@ const server = new McpServer({
version: '1.0.0',
}, { capabilities: { logging: {} } });

// Log the capability invocation details
server.onCapabilityChange((event) => {
switch (event.action) {
case 'invoked':
console.log(`${event.capabilityType} invocation ${event.invocationIndex}: '${event.capabilityName}' started`);
break;
case 'completed':
console.log(`${event.capabilityType} invocation ${event.invocationIndex}: '${event.capabilityName}' completed in ${event.durationMs}ms`);
break;
case 'error':
console.log(`${event.capabilityType} invocation ${event.invocationIndex}: '${event.capabilityName}' failed in ${event.durationMs}ms: ${event.error}`);
break;
}
});

// Register a simple tool that returns a greeting
server.tool(
'greet',
Expand Down Expand Up @@ -291,4 +306,4 @@ process.on('SIGINT', async () => {
await server.close();
console.log('Server shutdown complete');
process.exit(0);
});
});
7 changes: 7 additions & 0 deletions src/server/index.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,13 @@ export class Server<
);
}

/**
* The server's name and version.
*/
getVersion(): { readonly name: string; readonly version: string } {
return this._serverInfo;
}

/**
* Registers new capabilities. This can only be called before connecting to a transport.
*
Expand Down
Loading