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 specific scope of what is being reported (MCP platform and adapter versions), which goes slightly beyond the annotations by clarifying the exact information returned. This aligns well and adds modest value beyond the structured data.

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 that leads with the action verb 'Show' and clearly states the object. Every word serves a purpose, and the sentence is front-loaded. It is the ideal length for such a simple 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?

For a zero-parameter, read-only version tool with comprehensive annotations, the description provides all necessary context. It tells the agent exactly what information is exposed (MCP platform and adapter versions) without overcomplicating things. The lack of an output schema is not an issue here, as the tool's return value is self-evident from the description.

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?

With zero parameters, the description has no parameters to explain. The baseline of 4 is appropriate since the empty input schema means there is no parameter documentation gap. The description doesn't add parameter-related semantics, but none are needed.

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') with a precise resource ('current MCP platform and adapter versions'), making its function immediately clear. It distinguishes itself from sibling tools like 'authenticate' or 'report_bug' by explicitly targeting version introspection, leaving no ambiguity about its purpose.

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 guidance is given on when to use this tool versus alternatives. However, the straightforward nature of a version-checking tool makes its usage implied (e.g., when you need to know the MCP platform/adapter versions). It doesn't provide alternatives or exclusions, so it earns the 'implied usage' middle score.

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