chore: method to detect if a cluster support search indexes and expose the same on debug resource MCP-247 MCP-248

[himanshusinghs]

Proposed changes

Adds a small helper on session to check if search indexes are supported by the connected cluster and adds this information on the debug resource as well.

Checklist

• I have signed the MongoDB CLA

[Copilot]

Pull Request Overview

This PR adds functionality to detect if a connected MongoDB cluster supports search indexes and exposes this information through the debug resource. The changes enable better visibility into cluster capabilities for users.

Key changes:

• Added a new isSearchIndexSupported() method to the Session class that tests search index support
• Updated the debug resource to display search index support status when connected
• Made the debug resource's toOutput() method asynchronous to accommodate the new capability check

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/common/session.ts	Implements the isSearchIndexSupported() method that tests search index capability
src/resources/common/debug.ts	Updates debug output to show search index support status and makes toOutput() async
src/resources/resource.ts	Updates base resource class to support async toOutput() method
tests/unit/common/session.test.ts	Adds unit tests for the new search index support detection method
tests/unit/resources/common/debug.test.ts	Updates existing tests to handle async toOutput() and adds test for search index support display

[gagik]

I don't mind these additions but this seems like a bit of random information to include. What will be the deciding factor in what output we'll show here? I imagine there's a ton of info which could be relevant in that sense.

[himanshusinghs]

So far the idea is to have anything connection related that might help Agent debug a problem with tool calls / connectivity problems.

[himanshusinghs]

In this case - we're expecting Agent to use debug resource at some point when its attempting to do search related work like creating search index. Although the tool call would respond with the appropriate error but there is a good chance of agent pulling debug resource information so we should have search related metadata here as well.