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

With no annotations, the description carries the full burden and it delivers reasonable transparency: it states that the tool returns the licence status recorded on GCC Domestic and provides an official government registry link for independent verification. It does not explicitly declare its read-only nature or describe edge-case behavior, but for a verification tool this covers the essential behavioral expectations.

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 two sentences with no fluff. The core purpose is front-loaded, followed by lookup methods and return value, all in a compact and readable form.

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 two-parameter tool with no output schema, the description is complete: it explains what inputs are needed, how to use them, what the tool will return, and why the returned link matters. No critical information for calling the tool 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 coverage is 100%, so the baseline is 3. The description adds value by giving concrete examples of what counts as a licence/facility number (UAE MOHRE, Saudi Musaned) and clarifies the scope of the country filter, which goes beyond the schema's minimal descriptions.

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: 'Verify whether a Gulf recruitment agency is government-licensed.' It clearly distinguishes itself from sibling search tools by focusing on licence verification and the return of registry links, making its purpose unambiguous.

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 states clear lookup methods (by agency name or licence/facility number) and the context of verification. It does not explicitly name alternatives or when-not-to-use scenarios, but the purpose is distinct enough from siblings like search_agencies that usage context is effectively implied.

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