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

Annotations already declare readOnlyHint=true and destructiveHint=false, so safety is covered. The description adds useful scope clarity by noting sales reps are included in the same result set — a non-obvious trait — but says nothing about pagination behavior, default result counts, or response shape beyond the field list.

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?

One dense sentence plus the endpoint — front-loaded with the resource and zero filler. The parenthetical field list is compact but slightly crowds the sentence; it still earns its place by conveying return shape.

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?

With no output schema, the description usefully compensates by listing the returned fields and clarifying that sales reps are included alongside technicians. It remains thin on pagination and filter behavior, though the 100%-covered schema fills those gaps.

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%, with every parameter (page, sort, fields, per_page, name filters) fully documented in the schema. The description's field list loosely hints at what the 'fields' param can select but adds no filtering, sorting, or pagination semantics beyond the schema — baseline 3 applies.

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+resource ('List technicians and sales reps') and enumerates the returned attributes plus the underlying endpoint, so the agent knows exactly what comes back. It does not explicitly name the sibling servicefusion_get_tech as the single-record counterpart, leaving that distinction to the list/get naming convention.

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?

Usage is only implied by the verb 'List' — the agent can infer this is the browse/enumerate tool, but the description never says when to use it versus get_tech for a specific technician or list_tech_departments for department data.

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