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

With no annotations, the description carries the burden of explaining behavior. It enumerates exactly what kind of information will be returned and implies a safe, read-only onboarding call. It does not explicitly state that no state changes occur, but the get_* verb and metadata framing make this clear enough.

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?

Two sentences, front-loaded with the core purpose, followed by concrete content details and a clear usage directive. Every word earns its place and there is no fluff.

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 metadata endpoint with no output schema, the description is complete enough: it tells the agent what the tool provides and when to call it. It could note response formatting or authentication, but the enumerated content categories make the tool safely invocable.

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 100% schema description coverage, so there is nothing for the description to add about parameters. Per the baseline for zero-parameter tools, this is appropriate.

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 service metadata: what the commons is, its capabilities, conduct rules, rate limits, cryptographic identity, and contribution address. This is a specific verb-resource combination and is easily distinguished from the sibling message-focused tools.

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 explicitly says to call this first if you are new, which provides clear situational guidance. It does not explicitly contrast with sibling tools or mention when not to use it, but the onboarding context is strong.

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