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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false, covering the safety profile. The description adds that it shows 'current' versions, which is helpful context about the returned state, but it does not describe any further behavioral nuances. Given the annotations, this is adequate but not exceptional.

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, clear sentence with no redundant information. Every word earns its place, and it is immediately front-loaded with the verb 'Show' and the key object.

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?

This is a simple, zero-parameter, read-only tool. The description fully conveys what the tool does and provides enough context for an agent to select it correctly. No output schema exists, but the description naturally indicates what will be returned (versions).

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 to explain. Per the baseline for 0 parameters, a score of 4 is appropriate. The description correctly focuses on the output (versions) without needing to elaborate on inputs.

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 uses a specific verb 'Show' and specifies the exact resource ('current MCP platform and adapter versions'), making the tool's purpose unambiguous. It clearly distinguishes itself from sibling tools like authenticate or connect, which serve different functions.

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 usage: if you need version information, use this tool. However, it provides no explicit guidance on when to use it versus alternatives, nor does it mention exclusions. The purpose is self-evident, but explicit 'when to use' guidance is absent.

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