rentals_v3_by_player

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

With no annotations, the description carries the full burden of behavioral disclosure and does so thoroughly: it covers pagination behavior, ordering sensitivity, role checking, status observations, numeric-string preservation, local truncation at 100 rows and 256 KiB, and refusal of oversized records. There is no annotation contradiction.

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?

The first sentence is a strong front-loaded summary and most sentences carry information, but the middle is dense and repetitive: 'no automatic paging' is stated twice, and 'Two pages of two matched four rows' is grammatically unclear. The description would benefit from tightening.

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 no-annotation, no-output-schema tool with 8 parameters, the description covers endpoint behavior, limits, truncation, filtering caveats, and field preservation. It does not fully document offset semantics or the exact return and truncation shape, so it is strong but not fully complete.

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%, so the description must add parameter meaning, and it does for player, limit, role, sort, order, status, and counterparty. It notes observations like 'amount asc/desc changed the observed ordering' and status values 0 and 1, but offset is only implied by 'no automatic paging' and exact accepted values are not enumerated.

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?

Opens with an explicit verb and resource: 'Read public SPSP delegation rental records for an explicit player.' It also distinguishes this tool from related endpoints by noting these are token delegations, not card-worker rentals, and by scoping to the player route.

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?

Provides clear operational guidance: limit must be 1-100, it is a single bounded GET with no automatic paging, filters are forwarded as supplied, and counterparty partial matching was verified only on the player route. It does not explicitly name alternative sibling tools or state when-not-to-use, so it stops short of a 5.

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