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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the agent knows it is safe. The description adds that it returns version information, but does not specify the format or whether it includes both platform and adapter separately. It provides minimal additional behavioral context beyond annotations, which is acceptable for a simple, non-mutating tool.

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, concise sentence that is entirely informative with no fluff. It is front-loaded with the action 'Show' and resource 'versions'. Perfectly sized for a no-parameter tool.

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, no output schema), the description is mostly complete. It states what it returns (version information). Might benefit from mentioning that it requires no setup or that it is safe to call, but given the annotations cover safety, 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?

Since the tool has zero parameters, there are no parameter semantics to clarify. The schema coverage is 100% (vacuously), so the description's job is minimal. It adequately names the resource (versions) but doesn't need to say more about 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 clearly states the tool's purpose: to show current MCP platform and adapter versions. The verb 'Show' and resource 'versions' are specificociative, and it distinguishes from sibling tools by focusing on version information rather than authentication, connection, or marketplace actions.

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 for checking the current environment versions, which is a clear context. It doesn't explicitly provide exclusions or alternatives, but given the zero-parameter, read-only nature. It is distinguished from siblings by not performing actions like authenticating or connecting, but this is not explicitly stated.

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