get_meta

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

With no annotations, the description carries the burden of behavioral disclosure. It states the call is safe without authentication and returns an api-overview object, conveying read-only nature and return type. However, it does not mention rate limits, error scenarios, or any additional side effects, which would be useful but not critical for this simple read-only endpoint.

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 two sentences and a docs link, front-loaded with the core content and use cases. Every sentence adds value: the first enumerates the metadata, the second gives practical applications, safety, and return type. It is compact and well-structured without any 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?

Given the tool's low complexity (no parameters, no output schema), the description is highly complete. It explains what data is returned, why it might be used, the authentication requirement, and the return object type. The docs link provides further reference. There are no major gaps in context.

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 the schema is an empty object. Per the guidelines, the baseline is 4 when there are no parameters. The description does not need to compensate for parameter documentation and adds no extraneous param-related detail.

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 it 'Get[s] GitHub API metadata' and enumerates the specific data returned: IP ranges, SSH fingerprints, SSH public keys, and password authentication status. This distinguishes it from sibling tools which focus on repositories, issues, PRs, etc., making the purpose unambiguous.

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 provides explicit use cases: 'firewall allowlisting, SSH host verification, and infrastructure automation,' and notes it is safe to call without authentication. It does not explicitly mention when not to use it or offer alternatives, but the context is clear and sufficient for a general-purpose metadata tool.

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