Payment rows

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered elsewhere. The description adds only a vague inventory of returned columns and a screen analogy; it says nothing about pagination behavior, caching (the `fresh` param implies a cache layer), ordering, or result size limits. No contradiction with annotations, but very little incremental disclosure.

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?

It is a single short sentence, so nothing is bloated, but it is under-specified rather than concise. The trailing UI analogy ('like the panel payments screen') spends the final clause on a reference the agent cannot resolve.

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?

Six parameters, two required, no output schema — the description carries the burden of explaining what comes back and in what form. It gestures at fields but omits pagination shape, whether refunds/partial payments are included, and how results are ordered, which leaves an agent guessing about the row set it will receive.

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 100%, so all six parameters (including the required date_from/date_till and the `fresh` cache flag) are already documented in the schema. The description adds no formats, defaults, or semantics beyond what the schema states, which is the baseline 3 case.

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 names the resource (payments) and hints at returned fields (method, status, amounts), so an agent knows it retrieves payment records. However, the phrasing is a noun phrase rather than a verb+resource, and it does nothing to distinguish itself from close siblings such as payment_summary, checkout_transactions, booking_charges, or payment_basket. The 'like the panel payments screen' analogy points at a UI an agent cannot see.

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 when-to-use, when-not-to-use, or alternative is stated. With roughly a dozen payment-adjacent siblings, the description needed to say why an agent would pick payment_rows over payment_summary or booking_charges, and it does not.

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