hf_get_serial_config

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

With no annotations provided, the description carries the full burden for behavioral disclosure. It states that the tool retrieves configuration but does not mention whether it is read-only, what happens if the device is unreachable, or any side effects like opening the port. This lack of behavioral context is a gap for a tool that interacts with hardware.

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, front-loaded sentence that immediately states the tool's purpose and the key configuration fields. No redundant information or filler exists.

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 tool is relatively simple with only 2 parameters fully described in the schema. The description names the fields returned (baud rate, data bits, parity), which partially compensates for the lack of an output schema. While more context about potential errors or output format would improve completeness, the description is enough for an agent to understand the tool's basic function.

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 description coverage is 100% for both parameters: device_id and port are described in the schema. The description adds no extra meaning beyond the schema, so the baseline score of 3 is appropriate. It does not clarify the port parameter's optional nature or how device_id is resolved.

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 tool gets serial port configuration from a Hi-Flying device and explicitly lists the fields (baud rate, data bits, parity). This specific verb+resource+fields combination distinguishes it from siblings like hf_set_serial_config which sets configuration.

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 implies usage when needing to read serial port settings, but it does not explicitly state when to use this tool versus alternatives such as hf_get_network or hf_get_wifi. There is no mention of when not to use it or any alternative tools.

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