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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds the word 'current' which implies a real-time snapshot, but that is minimal additional behavioral context. No contradictions exist, and the annotation coverage reduces the burden on the description.

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 directly states the tool's function. Every word earns its place, and there is no fluff or redundancy, making it exemplary in terms of brevity and clarity.

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 tool with good annotations and no output schema, the description is fully sufficient. It communicates exactly what the tool does without requiring additional context. The sibling tools do not create confusion, and the simple nature of the tool means no further details are needed for an agent to select and invoke it correctly.

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 takes zero parameters, so the schema is trivially complete. With no parameters to explain, the description doesn't need to add parameter-specific meaning. The baseline score of 4 for zero-parameter tools is appropriate, as there is nothing to clarify beyond the tool's intent.

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: 'Show the current MCP platform and adapter versions.' It uses a specific verb ('show') and a specific resource ('MCP platform and adapter versions'), making it unambiguous. None of the sibling tools (authenticate, connect, marketplace, etc.) appear to overlap with this functionality, so it is well distinguished.

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 implicitly conveys when to use the tool: whenever version information is needed. There are no obvious alternative tools for this purpose within the sibling list, so no explicit exclusions are necessary. The context is clear, though it doesn't explicitly state 'use when you need version info'.

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