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

Annotations thoroughly cover the behavioral profile with readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds no extra information beyond the purpose, but given the trivial read-only nature, annotations are sufficient. No contradiction exists.

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 fully conveys the tool's function. It is front-loaded with the action and object, with no unnecessary filler or repetition.

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 informational tool with no parameters and no output schema, the description is complete. It specifies exactly what versions are shown (MCP platform and adapter) and needs no further elaboration. Sibling tools are distinct, so confusion is unlikely.

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 per the rubric baseline is 4. There is no need for parameter documentation, and the schema coverage is 100% (vacuously). The description is consistent.

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 purpose: 'Show the current MCP platform and adapter versions.' It uses a specific verb ('Show') and resource ('versions'), and it distinguishes from sibling tools like authenticate, connect, and report_bug, which serve entirely different functions.

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 usage context but does not explicitly state when to use it versus alternatives. Since the tool is for informational version checking and siblings are unrelated, the intended use is clear, but no explicit when/when-not guidance is provided.

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