test_connection

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states that a test is performed but does not disclose whether the operation is side-effect-free, what 'working' means in terms of connectivity checks, or what failure modes to expect. For a zero-argument health check, some of this is obvious, but the description still leaves the precise behavior unstated.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, front-loaded, grammatically complete sentence with no filler or redundant content. Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple no-parameter health check with an output schema present, the description is largely sufficient. The only slight gap is that it does not clarify what the test actually does (e.g., a ping/connectivity probe), but the low complexity and schema coverage make this a minor omission.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has zero parameters, so there is nothing for the description to add about parameter meaning. The baseline for a no-parameter tool is therefore appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb ('Test'), a specific resource ('the MCP server'), and a clear intent ('is working'). It is immediately distinguishable from the many sibling test_*_credentials tools, which all target platform credentials rather than the server itself.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies this is a general server health check, but it gives no explicit guidance about when to prefer it over sibling tools like test_spotify_credentials or test_youtube_credentials, nor does it say when not to use it. Usage has to be inferred from the tool's generic name and description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.