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

No annotations are provided, so the description carries the full burden. It usefully adds the auth requirement ('Signed-in session only') and the shape of what is returned (client IDs plus redirect addresses), which is genuine value beyond structured fields. It stops short of disclosing pagination, ordering, or whether revoked clients appear, which a full-burden description should cover.

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 whose first clause is the call-precondition and whose second names the returned entities. Every word earns its place with no padding.

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-parameter listing tool with no output schema, the description covers the essential questions: the auth scope and the content of the listing. Minor gaps around result size, ordering, or pagination keep it from being fully complete, but nothing critical to invoking it is missing.

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 the baseline is 4. There is no parameter schema for the description to duplicate or compensate for, and nothing is left ambiguous about inputs.

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 (list) applied to a precise resource: 'OAuth client IDs you created for assistants, with their redirect addresses.' An agent can distinguish this from assistants_clients_create and assistants_clients_revoke purely from the description without opening a 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?

The phrase 'Signed-in session only' communicates a real precondition that affects whether the tool can be called at all. However, it never frames usage relative to the sibling create/revoke tools or states when an agent should reach for this listing versus other assistants endpoints, so guidance remains implied rather than explicit.

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