m2m_get_service_status

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

With no annotations, the description must carry the full behavioral disclosure burden. It states that it returns real-time status, implying a read operation, but doesn't mention safety, external calls, or potential errors. It also omits details on the return format and the meaning of 'rails,' leaving ambiguity about the tool's behavior.

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?

A single, clear sentence that gets straight to the point. No redundancy or filler, and the core action and target are front-loaded.

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?

The description is minimal and doesn't describe the response format or the meaning of 'rails.' For a status tool without an output schema, an agent needs guidance on what to expect. The terminology may confuse agents unfamiliar with the domain, making it insufficient for a fully informed invocation.

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 takes no parameters, so the description doesn't need to elaborate on input semantics. The empty schema is fully self-explanatory, and the description correctly omits parameter details. Baseline for zero parameters is 4.

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 uses a specific verb ('Return') and clearly identifies the resource: real-time operational status of M2M Sentinel upstream RPC and persistence rails. This distinguishes it from sibling tools that retrieve financial metrics (e.g., m2m_get_token_price) by focusing on service health.

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?

No guidance is provided on when to use this tool versus alternatives. It doesn't mention scenarios such as checking service health or excluding other tools. While the unique purpose reduces the need for differentiation, the description fails to explicitly state when to invoke it.

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