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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so the safety profile is covered without description help. The description adds nothing beyond the endpoint path and an operation ID — no scoping, auth, pagination, or result-shape context. It does not contradict annotations, but contributes no behavioral value.

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?

Extremely short, but the brevity comes from duplication — the same endpoint path appears twice with zero front-loaded intent. The bytes spent on repetition would have been better used on a single sentence of scope or usage.

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, nested free-form parameters, zero schema description coverage, and no annotations explaining return content. The description leaves an agent unable to determine what the endpoint returns or how to shape the query object, which is inadequate for this complexity.

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 0% and the tool has two parameters (a free-form 'query' object and an empty 'params' object). The description explains neither, and even the nested free-form query object is undocumented, so an agent cannot know what filters or query keys are accepted.

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 only restates the HTTP path 'GET /api/payment-portal/bank-accounts' twice, which is essentially a tautology of the tool name. It does reveal the resource (bank accounts in the payment portal) but gives no verb-level intent such as whether it lists, searches, or summarizes them, and does nothing to distinguish it from sibling endpoints like get_payment_portal_payout_configs or get_payment_portal_dashboard.

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 statement of when to use this tool, no prerequisites, and no exclusion or alternative routing. The only actionable pointer is that describe_operation provides native request schemas, which is a schema hint rather than usage guidance.

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