get_device_parameter_value

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

No annotations are provided, so the description carries the full burden. It merely states 'get the current value' without disclosing return format, error behavior, or whether it is a safe read operation. The description adds minimal behavioral context beyond the tool's purpose.

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 extremely concise: one sentence for purpose and a bullet list for parameters. No redundant information, and every element serves a purpose.

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 simple nature of the tool and the existence of an output schema, the description adequately covers the essentials. It explains the three indices and their origin. Minor omission: it doesn't confirm the return value type, but that may be in the output schema.

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?

Schema coverage is 0%, but the description adds crucial context: indices are 0-based and parameter_index should come from get_device_parameters. This compensates for the lack of schema documentation.

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 'Get the current value of a specific device parameter', using a specific verb and resource. It distinguishes from sibling tools like set_device_parameter (write) and get_device_parameters (list all parameters).

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 does not explicitly state when to use or not use this tool, nor does it mention alternatives. It is implied for retrieving a parameter value, but lacks guidance on prerequisites or comparison with get_device_parameter_display.

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