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

Annotations already declare readOnlyHint: true, idempotentHint: true, destructiveHint: false, covering safety. The description adds 'current' implying a live query, and specifies what is shown (platform and adapter versions). This adds useful context beyond the annotations, without contradicting them.

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, concise sentence that clearly states the purpose. No wasted words or redundant details. It is well-structured and front-loaded.

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 simple version-check tool with no parameters and strong annotations, the description is complete. It doesn't specify output format, but that's likely a simple version string; given the low complexity, this is sufficient.

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 no parameters (schema is empty). The baseline for 0-param tools is 4, and the description doesn't need to add anything about parameters. It correctly reflects that the tool takes no 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 is specific: 'Show the current MCP platform and adapter versions.' It uses a clear verb and identifies the exact resource (versions). It distinguishes from siblings like 'toolkit_info' or 'marketplace' because none of them explicitly mention versions.

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?

No explicit when-to-use or alternatives are stated. However, given the tool's simple informational nature and that no sibling tool obviously serves the same purpose, the usage is implied: use when you need version info. It lacks exclusions but is adequate for a trivial tool.

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