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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, fully covering the safety profile. The description adds no additional behavioral context beyond the literal function (e.g., no mention of caching, network calls, or side effects). Given the annotations, the description meets the baseline but adds no extra transparency.

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 of 8 words, front-loaded with the verb and object. It is efficient with zero wasted words, perfectly proportional to the tool's trivial nature.

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?

The tool is extremely simple with no parameters and no output schema. The description fully captures the purpose and expected output (platform and adapter versions). Nothing is missing for an agent to understand when and how to use it.

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 tool has zero parameters, so there is nothing to explain. According to the rubric, a 0-parameter tool receives a baseline 4. The schema coverage is trivially 100% since the schema is empty, and the description does not need to compensate for any undocumented parameters.

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 explicitly states the tool shows current MCP platform and adapter versions, using a clear verb ('Show') and specific resource ('versions'). It is distinct from sibling tools like 'authenticate' or 'marketplace' which serve different purposes.

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 states what the tool does but provides no guidance on when to use it versus other tools. For a trivial version-checking tool with no obvious alternative among siblings, this is acceptable but not explicit. No when/when-not guidance or alternative references are given.

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