hwid_user_devices_get_user_hwid_devices

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

No annotations are provided, so the description carries the full burden. The 'GET' prefix weakly implies a read-only fetch, but the description never confirms it is non-mutating, nor does it describe pagination, empty results, or what a device record contains.

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?

Very short and front-loaded with the endpoint, which is fine, but the trailing 'Tags: HWID User Devices Controller' line is low-value filler that consumes part of an already minimal description.

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?

No output schema exists, so the description should describe the returned device list, yet it says nothing about the response shape or size. For a lookup tool with zero annotations and an undocumented parameter, this is not enough for an agent to call it confidently.

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?

One required parameter at 0% schema description coverage. The path template '{userId}' only restates the parameter name already visible in the schema, adding no meaning about expected format, valid range, or where to source the ID.

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 states a specific verb+resource ('Get user HWID devices') and the inclusion of the path template '/api/hwid/devices/{userId}' makes clear this is the per-user variant, distinguishing it from siblings like hwid_user_devices_get_all_users and hwid_user_devices_get_top_users_by_hwid_devices. It stops short of explicitly naming those siblings as alternatives.

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?

There is no when-to-use guidance, no exclusions, and no mention of the four sibling HWID tools that also list device data. The agent must infer from the name alone that this is the single-user lookup.

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