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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered structurally. The description adds nothing beyond that — no note on what the response contains, whether supplemental rent records must exist first, or any access constraints specific to sales defaults.

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 short but the identical path sentence is duplicated verbatim, wasting half its length on a repeat. There is no front-loaded purpose statement beyond the mechanical endpoint echo.

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?

There is no output schema and no parameter documentation, so the description is the only source of meaning — yet it provides none about return shape, nested 'sales defaults' content, or error conditions. For a nested-object, zero-coverage tool this leaves the agent materially under-informed.

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 two required params, so the description carries the full burden and fails: it never explains that leaseId scopes to a lease or what the second `id` identifies (supplemental rent record vs. sales-default record). Only the URL template implied by the repeated path gives any hint about the parameters.

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 endpoint path (GET /api/leases/:leaseId/supplemental-rent/:id/sales-defaults), which duplicates the tool name and title rather than explaining what 'sales defaults' are or what the call returns. With dozens of near-identically named sibling tools under get_leases_by_leaseId_supplemental_rent_*, an agent gets no basis to distinguish this one from the others.

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 only actionable guidance is the pointer that 'describe_operation provides native request schemas', which is a workflow hint but not a when-to-use rule. Nothing says when this sales-defaults endpoint should be called instead of the other supplemental-rent endpoints, and no prerequisites or exclusions are given.

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