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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is covered. The description adds one genuinely useful trait beyond that: it fixes the returned field set and explicitly notes bank account numbers are excluded, which matters for privacy expectations. It says nothing about ordering, default page size, or how the optional limit behaves.

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?

Two short sentences, front-loaded with the resource and its fields, then one high-value caveat. Nothing is wasted and nothing is buried.

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 simple read tool with no output schema, listing the returned fields plus the exclusion note covers the essentials of what comes back. It is still incomplete on pagination/limit semantics and on how many records are returned by default, which matters given the maximum of 30 in the schema.

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% for the single `limit` parameter, so the description would need to compensate, and it never mentions limit, its max of 30, or the default when omitted. An agent must read the schema to discover the parameter exists at all and cannot learn from the description what happens if it is not supplied.

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) and resource (your payout requests) and even enumerates the returned fields, so the agent knows exactly what it retrieves. It does not contrast itself with near-neighbours like request_payout, get_payout_methods, or get_earnings_summary, which is the main thing keeping it from a 5.

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 call this versus the many money-related siblings (request_payout, get_releasable_balance, get_earnings_summary, get_payout_methods). The possessive 'Your' implies per-user scoping but no exclusions or preconditions are given.

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