Get Controller Status

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

With no annotations provided, the description carries the behavioral disclosure burden. The verb 'Get' and the listed status fields strongly imply a non-mutating read operation, but the description does not explicitly state that no controller settings are changed, nor does it mention failure or offline behavior. For a parameterless status read the risk is low, so a middle score 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?

The description is a single sentence with no filler. It front-loads the action and resource, then lists the key returned data efficiently.

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 simple, parameterless status endpoint, the description is largely complete: it identifies the resource and the main returned data. It could have added a brief note on response format or a direct pointer to get_rain_delay for more detailed rain delay info, but the tool's simplicity limits the need.

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 schema description coverage is 100%, so there is no parameter burden for the description to carry. The baseline of 4 applies because no parameter documentation is needed.

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 action ('Get'), the resource ('OpenSprinkler controller status'), and enumerates concrete returned fields (device time, enabled state, rain delay status), so an agent can distinguish it from station- or program-level tools. However, it does not explicitly differentiate it from the sibling get_rain_delay, which overlaps on the rain delay status field.

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 explicit guidance is provided about when to use this tool versus alternatives such as get_rain_delay, enable_controller, or get_stations. The only usage signal is the implication that this is the controller-level status endpoint, but there are no exclusions or comparisons.

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