get_control_settings

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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds the useful detail of which control values are returned, but says nothing about whether these settings are cached, how fresh they are, or whether a companion setter tool exists. With annotations carrying the behavioral load, a 3 is appropriate.

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 compact sentence with the resource front-loaded and the returned fields listed in order of importance. No filler, though the fragment lacks a verb, making it slightly less self-explanatory than it could be.

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?

With an output schema present, the description need not explain return values, and it correctly stops at naming the setting categories. For a zero-parameter read-only tool this is close to complete; only the distinction from sibling status tools is left implicit.

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 baseline of 4 applies. There is no argument semantics for the description to clarify beyond the returned field list, which it does provide.

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 the specific resource (plant control settings) and enumerates what it exposes: remote EMS enable/mode, power limits, and SOC limits. That is enough to distinguish it from status siblings like get_plant_status or get_battery_status, which report measurements rather than configured control values.

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?

There is no explicit guidance on when to call this versus the many sibling status tools, nor any stated prerequisites or exclusions. The intended use (inspecting current control configuration) is only inferred from the field list.

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