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 safety profile is well covered. The description adds the 'current' qualifier, implying dynamic version retrieval, but it doesn't disclose output format or whether any external call is made. This is acceptable for a simple version query.

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?

A single, focused sentence conveys the tool's purpose without redundancy. The key information, 'current MCP platform and adapter versions,' is front-loaded and every word is meaningful.

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 zero-parameter, read-only version-inspection tool, this description is fully sufficient. The annotations cover the behavioral safety aspects, and the description clearly states what information will be shown. No additional context is necessary.

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 the schema already trivially covers everything. The description reinforces that no input is needed by describing a simple show operation. The baseline of 4 applies because there is no parameter complexity to explain.

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 resource ('current MCP platform and adapter versions'), clearly distinguishing it from sibling tools like authenticate and report_bug. Even without the title, an agent can tell exactly what this tool does.

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?

Although no explicit when/when-not guidance is provided, the fact that it reports current versions makes its usage context obvious. The sibling tools are unrelated (authentication, bug reporting), so there is no ambiguity about when to select this tool.

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