rentals_by_bid

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

With no annotations provided, the description carries the full burden, and it does so thoroughly. It discloses that one bounded GET request is made, there is no automatic continuation, paging/sort effectiveness is unestablished, filters are forwarded without implied effectiveness, results are locally capped at 100 rows and 256 KiB, truncation is reported, and oversized records are refused. This is exceptional behavioral disclosure for a read tool.

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 description is front-loaded with the core purpose and then delivers a dense block of caveats. It contains redundancy, notably saying 'one bounded response, no automatic continuation' and later 'Makes one logical GET request and does not auto-fetch continuation pages.' Some phrasing, such as 'Required inputs reflect tool policy as well as measured upstream requirements,' is vague and adds little. It is structured but wordier than necessary.

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?

Given the absence of annotations and output schema, the description nevertheless covers request behavior, limits, truncation reporting, refusal of oversized records, and filter semantics. It could be more complete by describing the response shape or field details, but for a bounded read tool with explicit limits, it gives an agent enough behavioral context to call it correctly.

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 compensate for the schema's silence. It does explain the two required parameters ('bid transaction ID' and 'limit of 1 to 100') and warns generically that 'other declared filters are forwarded as supplied; their effectiveness is not implied by the schema.' However, it does not individually clarify the semantics of sort, order, or offset beyond that aggregate caveat. This is partial compensation, not full.

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 opens with a specific verb and resource: 'Read legacy SPSP delegation rental records for an explicit bid transaction ID and limit of 1 to 100.' It further disambiguates the tool by stating 'These are token delegation rentals, not worker-card rentals,' which helps distinguish it from other rental-related siblings. This is a precise, non-tautological purpose statement.

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 description gives clear context for when the tool is appropriate: use it with an explicit bid transaction ID and a limit between 1 and 100. It also provides an exclusion ('not worker-card rentals') and important caveats about paging and filter effectiveness. It stops short of explicitly naming an alternative sibling tool or stating 'use X instead,' so it does not quite earn a 5.

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