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

Annotations already indicate read-only, idempotent, non-destructive, and openWorldHint false. The description adds that it shows both platform and adapter versions, which is useful. There is no contradiction. Since the tool is simple and side-effect free, the description covers the key behavior adequately.

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 concise sentence that is front-loaded with the verb 'Show' and the resource. It is immediately clear and contains no fluff. It 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 tool with zero parameters concerns and strong annotations (read-only, idempotent), the description is complete enough. It does not explain return format, but with no output schema and a simple version query, that is acceptable. It could be slightly improved by indicating what 'versions' includes (e.g., exact numbers), but the current level is adequate.

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 schema has zero parameters)Skip; the description correctly mentions no parameters. With no parameters, the baseline is 4 because there is nothing to explain. The description does not add anything about parameters, but that 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 states the tool's purpose: showing the current MCP platform and adapter versions. It uses a specific verb and resource, and is unambiguous. It is distinct from siblings that handle authentication, connection, marketplace, etc.

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 clearly implies a usage context: when you need to check the versions of the platform and adapter. There are no explicit when-not-to-use or alternative tool mentions, but the tool is simple enough that guidance is minimal. However, it lacks explicit context on when to use this versus toolkit_info, which may also provide version info.

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