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

Annotations already declare the tool as read-only, idempotent, and non-destructive, covering the main safety concerns. The description adds the exact scope (platform and adapter versions) but doesn't disclose output format or whether connection/authentication is required, which could be valuable context for an agent.

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?

This is minimal and efficient: a single sentence that precisely describes the output. No fluff, no repetition of the tool name, and all words add value.

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 simple no-parameter read-only tool with clear annotations, the description is adequate. It could be more explicit about the exact version strings returned or potential error cases, but given the low complexity and full schema coverage, no significant gaps remain.

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 zero parameters, so the description needs to convey no input is required. The description implies this by simply stating 'Show the current...' without mentioning any arguments. Given the schema already has no properties, the baseline for zero-param tools is 4, and this description satisfies it.

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 returns the current MCP platform and adapter versions. This verb+resource mapping is specific and distinguishes it from siblings like toolkit_info, which likely provides broader tool information.

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 a common use case: checking environment versions for debugging or compatibility. Though it doesn't explicitly exclude alternatives, no other sibling tool appears focused solely on version info, so the purpose context is sufficient. It could be improved by noting when to use this instead of toolkit_info.

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