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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and a closed world, so the safety profile is fully covered. The description adds only that the full description text is included in the payload, which is modest extra context beyond the structured fields; nothing is said about error behavior for unknown ids.

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, and the notable payload detail ('including its full description') is placed where it will be read. It is efficient but borders on under-specified rather than maximally informative.

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 one-parameter read with full annotation coverage and no output schema, the description is adequate but thin: it does not indicate what job fields come back, whether missing/invalid ids error or return empty, or how it relates to list_jobs. These gaps are minor for such a simple tool but real.

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% and the single job_id parameter is documented with type and bounds, so the schema carries the load. The description adds no format, range, or sourcing detail about the id beyond what the schema already states, so baseline 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 and resource ('Get one job posting') and signals single-item retrieval, which implicitly contrasts with the sibling list_jobs. It never names the alternative explicitly, so an agent must infer the distinction from the singular phrasing.

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: 'one job posting' suggests fetching a known job by id rather than enumerating jobs, and the required job_id reinforces this. There is no explicit when-to-use, when-not-to-use, or pointer to list_jobs/search_candidates for the lookup-by-attribute case.

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