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

Annotations already flag readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds the specific output (platform and adapter versions), which is helpful and goes beyond annotations. It doesn't mention return format or network calls, but for a simple version query, that's acceptable.

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 precisely states the tool's function. It's front-loaded and contains no filler or redundant details.

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?

With no parameters, no output schema, and comprehensive annotations (read-only, idempotent, non-destructive), the one-sentence description fully specifies the tool's behavior. Nothing essential is missing for a version-check tool.

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, and schema coverage is 100% (vacuously). Baseline for 0 parameters is 4, and the description adds no unnecessary parameter info. Nothing more 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 shows the current MCP platform and adapter versions, using a specific verb ('Show') and resource. It is distinct from sibling tools like toolkit_info, which likely covers broader toolkit details, making the purpose unmistakable.

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 gives implicit context for when to use it (when needing version info) but does not explicitly mention alternatives or exclusions. Since it's a read-only informational tool with no parameters, the usage is self-evident, but it could have mentioned 'Use when you need to check installed versions'.

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