create_media_grabbers_devices

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

The description adds no behavioral context beyond the act of adding, such as idempotency implications, response behavior, or side effects. Annotations already state readOnlyHint=false, idempotentHint=true, and destructiveHint=false, so there is no contradiction, but the description contributes nothing about what happens when a device with a duplicate or invalid URI is provided.

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 compact: a one-line purpose, the endpoint, and a single parameter. Every element is useful and no filler is present, making it easy to scan.

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?

Although the operation is simple and an output schema exists, the description leaves a key ambiguity: the URI parameter is nullable and not required, yet no guidance explains when a null/omitted URI is acceptable. It also does not explain how this relates to sibling discovery/scan tools, so an agent may not know the correct context for creating a media grabber device.

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?

With 0% schema description coverage, the description must carry parameter meaning, and it does state 'uri: The URI of the device.' This is minimal and largely mirrors the parameter name, but for a single simple parameter it is adequate; it does not clarify URI format, validity, or why the parameter has a null default.

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?

Description uses a specific verb ('Add') and resource ('a device'), and includes the endpoint POST /media/grabbers/devices, clearly identifying it as the create-device operation. It differentiates from sibling operations like update_media_grabbers_devices_by_device_id and delete_media_grabbers_devices_by_device_id, though it does not explicitly contrast with them.

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 guidance is given about when to use this tool versus the many related siblings (e.g., list_media_grabbers_devices_discover, create_media_grabbers_devices_by_device_id_scan, update_media_grabbers_devices_by_device_id). 'Add a device' implies a basic registration scenario but does not mention prerequisites, alternatives, or exclusions.

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