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

Annotations already establish read-only, idempotent, closed-world, non-destructive behavior, so the description's remaining job is to add context — and it does, disclosing that only public listings are compared, the 2-5 cardinality limit, and the exact return contents (listing data, description excerpt, application URL). That is meaningful added value beyond the 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?

A single sentence with the comparison scope front-loaded and zero wasted words; every clause (cardinality, selector, return contents) 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?

There is no output schema, so the description compensates by enumerating what comes back (listing data, excerpt, application URL). For a one-parameter read-only comparison tool, nothing needed for correct invocation 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 0%, so the description must carry the burden, and it largely does: 'by job ID' identifies jobIds and 'two to five' restates the minItems/maxItems bounds. It does not call out the UUID format constraint, but that gap is minor for a single array parameter.

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 names a specific verb (Compare) and resource (public HireHouse roles), plus the scope (two to five, by job ID) and the payload returned. It implicitly separates itself from single-role tools like get_job, but never names a sibling, so it stops short of the explicit differentiation a 5 requires.

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: an agent can infer this is for side-by-side evaluation of several roles rather than fetching one. There is no explicit when-to-use/when-not statement and no pointer to get_job or search_jobs as alternatives or prerequisites.

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