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

The annotations already declare this operation as read-only (readOnlyHint) and idempotent (idempotentHint), and the description adds the specific detail that it displays platform and adapter versions. This additional context clarifies the exact output scope beyond the generic safety hints, and there is no contradiction between descriptions and annotations.

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, tightly written sentence that front-loads the action and immediately identifies the resource being reported. Every word adds value, avoiding any filler or redundant phrasing.

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 that this is a simple, read-only, parameterless version-checking tool, the description fully covers what it does and why it might be invoked. The annotations cover the safety profile, and the description clarifies the exact data presented, making it complete for the tool's low complexity.

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 defined in the input schema, the description needs to convey no parameter-specific information. The tool's functionality is fully explained without referencing any inputs, so the description comfortably satisfies the baseline for a no-parameter tool.

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 the action verb 'Show' paired with the specific resource 'the current MCP platform and adapter versions,' clearly defining the tool's function. This distinct purpose sets it apart from sibling tools like authenticate or connect, which serve different operational needs. The description is unambiguous and directly aligns with the tool name.

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 establishes a clear context for use—whenever an agent needs to know the current platform or adapter versions—with no ambiguity about the tool's applicability. However, it does not explicitly mention alternative tools (e.g., toolkit_info) or specify when not to use this tool, so the guidance is clear but lacks exclusions.

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