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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds real value beyond them by disclosing what comes back (public profile info plus the contact agency) and that this tool is not the hiring channel — a downstream-workflow fact an agent could not infer from annotations.

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?

Three tight sentences: scope first, filters second, downstream expectation third. No filler and nothing important buried.

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 three-parameter, read-only search with no output schema, the description usefully compensates by describing the return contents and the agency-contact handoff. It could still say something about result ordering or data freshness, but nothing essential to calling it correctly is missing.

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 each of the three parameters documented including examples and the limit cap, so the schema carries the burden. The description's 'filter by nationality and/or position' merely restates those fields without adding syntax or matching behavior, so the baseline of 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 ('Browse') and resource ('domestic workers... available through GCC agencies'), and enumerates the worker categories covered (housemaids, nannies, cooks, drivers, caregivers). This resource is plainly distinct from siblings like search_agencies and get_salary_benchmarks, so an agent can route without opening the schema.

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?

Explicitly states the available filter axes ('Filter by nationality and/or position') and frames the tool's place in the workflow ('hiring goes through the worker's agency'). It gives clear context for when to use it but names no alternatives or exclusions, 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.