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

Beyond the annotations, it discloses the required profile:write scope, the fact that the first call is a pure dry-run that changes nothing, that unknown fields are refused by name, and that the first call returns a summary plus confirm_token. The annotations mark the tool as mutating and non-idempotent, but the description never spells out the consequence of the 'move' path (what happens to the previous link), which is the main remaining gap.

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?

Front-loaded with purpose and scope, then the two-call protocol in order; every sentence carries actionable information and nothing is repeated from the schema or annotations.

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?

With no output schema, the description correctly explains what the first call returns (summary and confirm_token) and how to replay. It stops short of describing the second call's result or the effect on an existing link when moving, which an agent would benefit from for a non-idempotent, open-world mutation.

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 50%: confirm_token is documented in the schema, but the description usefully adds the ordering rule ('leave out on the first call, replay with the same arguments plus token'). The subdomain parameter is undocumented in both the schema and the description, so half the surface stays unexplained.

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 opens with a specific verb+resource ('Claim or move my DJ link'), so the agent knows exactly what operation this is. It does not name the closely related siblings check_dj_link or release_dj_link, so an agent still has to infer the boundary between claiming, checking, and releasing a link.

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?

It gives unusually concrete usage guidance: a mandatory two-call sequence, a human-confirmation gate between calls, and the prerequisite scope. It never states when to use this instead of check_dj_link or release_dj_link, but for a mutating tool the when/how guidance is strong.

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