Ping

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

With no annotations, the description carries the full burden of disclosing side effects and behavior, but it only says 'returns pong.' The version/update note about 'Restart with @latest to update' is unrelated to the tool's runtime behavior and could mislead an agent into thinking updating or restarting is part of the tool's function.

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 first sentence is concise and front-loaded, but the second sentence about version numbers and '@latest' is irrelevant to the tool's function. Every sentence should earn its place, and this one does not.

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 test tool with one optional parameter and no output schema, 'returns pong' is minimally sufficient to make an initial call. However, the description does not clarify how the optional message affects the response, and the update notice adds confusion rather than useful context.

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 fully documents the single optional message parameter with 100% coverage, including that it is echoed back. The description adds no parameter detail, but the schema already carries the burden, so a baseline score of 3 is 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 clearly identifies the tool as a test tool and states its behavior: 'returns pong.' This makes the purpose concrete and distinguishes it from the long list of non-test sibling tools, though 'test tool' is somewhat generic.

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?

No explicit guidance is given about when to use this tool versus alternatives such as get_version or show_capabilities. The word 'Test tool' implies a connectivity smoke test, but that is left to inference rather than stated.

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