system_services_overview

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

With no annotations, the description carries the full behavioral disclosure burden. The word 'snapshot' weakly implies a read-only point-in-time view, but the description does not explain what 'occupancy' covers, what system data is inspected, or any caveats or side effects.

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 sentence with a disambiguating parenthetical and no filler words. It is appropriately brief for a zero-parameter tool, though the brevity contributes to the ambiguity of the term 'occupancy'.

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 empty input schema and presence of an output schema lower the burden, and the basic call is simple. Still, the unexplained 'occupancy snapshot' concept and weak differentiation from the many sibling service tools leave a meaningful gap for agent selection.

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 there is no parameter-meaning gap for the description to fill. The baseline of 4 applies because nothing about parameter semantics needs to be documented.

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 names a resource ('services occupancy') and an action ('snapshot'), and the parenthetical distinguishes it from 'the systemd list'. However, 'occupancy' is never defined, so an agent cannot tell exactly what data the tool returns; the phrase points more at what the tool is not than at what it is.

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 only usage guidance is the negative statement 'not the systemd list', which does not tell an agent when to use this tool or which alternative to choose instead. No explicit conditions, exclusions, or sibling references such as services_list are provided.

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