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

No annotations are provided, so the description carries the entire behavioral burden. It does not disclose whether unlinking is reversible, what access or state is lost, whether confirmation or specific permissions are required, or what the caller receives on success or failure — significant gaps for a lifecycle-mutating operation.

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?

A single front-loaded sentence with no filler or redundancy — nothing to trim. It is appropriately sized for a zero-parameter tool, though its brevity is part of why behavioral detail is missing.

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 zero-param tool with no annotations and no output schema, the description should at least convey consequences and reversibility, since the agent has no other source for them. As written, an agent cannot predict the effect of calling it beyond the literal meaning of 'unlink'.

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 takes zero parameters, so per the rubric this is the baseline 4. There are no arguments whose meaning the description could clarify, and schema coverage is effectively complete.

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?

States a specific verb (unlink) and resource (account) with the agent as subject, so the operation is unambiguous. It does not explicitly reference its inverse sibling link_account, but the naming pair makes the distinction obvious without opening either schema.

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 on when to unlink versus when to keep or re-link, no prerequisites (e.g., must be currently linked), and no mention of the link_account sibling that an agent would pick instead when going the other direction. The agent must infer all usage context.

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