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 'MCP platform and adapter versions', but does not disclose additional behavioral traits such as output format or error potential. It neither contradicts annotations nor enriches them significantly.

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, direct sentence that immediately conveys the tool's purpose without any redundancy or filler. It is optimally concise for its simplicity.

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 information tool, this description captures the essential purpose effectively. However, the lack of an output schema and the presence of a similarly-sibling 'toolkit_info' mean the description could be more complete by clarifying what exact version data is returned and how this differs from other informational tools.

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, making the schema trivially complete. The description correctly omits parameter details, and the baseline of 4 applies for zero-parameter tools. No additional parameter context is 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 clearly states the tool's function with a specific verb and resource: 'Show the current MCP platform and adapter versions.' It is unambiguous and informative, though it does not explicitly distinguish this tool from the sibling 'toolkit_info', which could potentially also display version details.

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 usage guidance is provided. The description simply states what the tool does without explaining when to use it versus alternatives like 'toolkit_info'. There is no mention of context, prerequisites, or exclusions, leaving the agent to infer usage independently.

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