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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the agent knows this is a safe read operation. The description adds no additional behavioral context beyond what annotations provide. It doesn't mention any potential side effects or prerequisites, but for a version query, the annotations are sufficient.

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 sentence with no fluff. It is front-loaded with the verb 'Show' and immediately identifies what is shown. 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?

Given that this is a simple version query with no parameters and a straightforward purpose, the description is complete. It doesn't need to explain return values because the output is self-evident (versions). The annotations cover safety, and there is no complexity to address.

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?

There are 0 parameters, and the schema coverage is 100%. The description provides a baseline score of 4 since there are no parameters to document. The description effectively communicates that the tool requires no input, which is consistent with the schema.

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: it shows current versions of the MCP platform and adapters. It uses a specific verb ('Show') and a specific resource ('current MCP platform and adapter versions'). While it doesn't explicitly distinguish from siblings, the purpose is unambiguous and distinct enough given the sibling names.

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 when to use this tool: when you need version information. However, it doesn't provide explicit guidance on when not to use it or mention any alternatives. Given that siblings include 'toolkit_info' and 'marketplace', a note on how this differs from 'toolkit_info' could add value, but the context is clear enough for a simple info tool.

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