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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is clear. The description adds meaningful behavioral context by stating that results include contact details, licence information, and the official government registry link, which tells the agent what to expect from the response despite there being no output schema.

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?

Two tight sentences: scope first, then filtering options, then return value. Every sentence earns its place and there is no redundant or promotional language.

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 read-only search tool with no required parameters and no output schema, the description is reasonably complete: it covers geographic scope, filtering options, and result contents. It could still mention default behavior when no filters are supplied or how it differs from verify_agency_licence, but these are minor 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%, so all four parameters are already documented with their own descriptions and example values. The description mentions filtering by country, city, and free-text name query, but this largely mirrors the schema without adding significant new semantic detail.

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 the specific verb 'Search' and identifies a precise resource: 'government-licensed domestic-worker recruitment agencies' across the six GCC countries. It clearly distinguishes itself from siblings like search_workers and verify_agency_licence by scope and by the registry-link return value.

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 implies when to use the tool—when looking for licensed domestic-worker agencies with optional filters—but it never explicitly states when to prefer an alternative such as verify_agency_licence. No exclusions or when-not-to-use guidance is provided, which is a gap given the sibling list.

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