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

The annotations already provide strong transparency with readOnlyHint, idempotentHint, and destructiveHint all set appropriately. The description is consistent with these hints and adds no conflicting information. Since the tool is read-only and side-effect free, the existing annotations adequately cover behavioral transparency, and the description does not contradict 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?

The description is a single, clear sentence with no unnecessary words or details. It is concise and to the point, conveying the tool's purpose efficiently.

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 the tool's simplicity (no parameters, read-only operation), the description is complete. It explains what the tool does, and the annotations provide additional behavioral context. There is no missing information that would hinder understanding or usage.

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 no parameters, as shown by the empty schema. The description does not add any parameter information, but the schema is fully covered (100%) since there are none. According to the rubric, the baseline is 3 when schema coverage is high, and since there is nothing to describe, this score is appropriate.

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 what the tool does: 'Show the current MCP platform and adapter versions.' It uses a specific verb 'Show' and identifies the resource (MCP platform and adapter versions), distinguishing it from sibling tools like 'authenticate' or 'connect' that 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 implies usage when one needs to check version information, but does not explicitly state when to use it versus alternatives. It lacks guidance on specific scenarios or prerequisites, but for a simple informational tool, the implied usage is sufficient.

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