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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds useful context about what the registry contains (company, ATS provider, open-role count) and that the visa-sponsorship filter is optional, but says nothing about pagination behavior or result shape beyond what the schema/output schema provide.

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?

A single, front-loaded sentence with zero filler that names the core capability first and the optional filter last. Slightly dense but every clause earns its place.

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?

An output schema exists so return values need not be described, and all eight optional parameters are schema-documented. The main gap is the absence of usage guidance versus sibling jobs tools, but nothing essential for invoking 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 all eight parameters are already documented in the schema. The description only loosely maps to a few of them (company, provider, min_open_roles, sponsors_visa) without adding syntax or semantics beyond what the schema states, 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+resource ('Find which companies are hiring') and clarifies it is the jobs board registry rather than a job-posting search, which distinguishes it from siblings like datasets_jobs_search. However, it never names an alternative tool explicitly, so differentiation is implied rather than stated.

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 phrase 'Find which companies are hiring' implies when the tool is useful, but there is no explicit when-to-use/when-not guidance and no routing to siblings such as datasets_jobs_search, datasets_jobs_company_item, or datasets_jobs_nearby. Usage must be inferred.

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