get_firmware_info

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

With no annotations, the description carries the full burden. It discloses that the tool queries a specific API endpoint and returns a StatusFirmware object with a detailed list of fields, which adds significant behavioral context. However, it does not explicitly state the operation is read-only, nor does it mention error handling or permission requirements. The GET verb and 'retrieve' imply non-destructive behavior, but the absence of explicit safety disclosure prevents a higher score.

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 well-structured with a brief introduction, a detailed return field list, and a clear use case section. It is appropriately sized for the tool's complexity, though the field list is somewhat long. Each sentence contributes useful information, and the structure aids readability.

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 no-parameter tool with no output schema, the description is quite complete. It includes the API endpoint, the full return object fields with examples, and a use case. It lacks mention of potential errors, authentication requirements, or rate limits, but for a simple read-only status query, the provided information is sufficient for an agent to invoke the tool and interpret the result.

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 the baseline is 4. The description does not need to explain parameter semantics, and the schema already covers the empty parameter set completely. The description adds no parameter-related information, but none 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 tool retrieves firmware version details from the Busy Bar device, and identifies the specific endpoint (GET /api/status/firmware). It distinguishes itself from siblings like get_firmware_update_status by focusing on the currently installed firmware, not update status. The verb 'retrieve' and resource are specific and unambiguous.

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 provides a clear use case: verify firmware revision before deploying updates or diagnosing firmware-related bugs. This gives context for when to use the tool, but it does not explicitly mention when not to use it or point to alternative tools for related tasks such as update status or changelog.

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