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

Annotations already declare readOnly, idempotent and closed-world, so safety is covered; the description adds real context beyond that, notably that apply_url is only public for published jobs and that invitation state may be held/gated rather than sent. It also supplies workflow coupling (version consumed by update_draft_job), which annotations cannot express.

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?

Front-loaded with the one-line summary before the field enumeration, and the conditional qualifiers ('published jobs only', held vs gated) earn their space. Some of the enumerated payload overlaps with the existing output schema, so a little redundancy is present, but nothing is padded with filler.

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?

With an output schema available and annotations covering the read-only/idempotent profile, the definition is nearly self-sufficient for a single-record getter. The only notable omission is guidance on obtaining the job_id argument; return format and safety need not be repeated here.

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% and the single required parameter job_id is undocumented in the schema, while the description never explains what job_id is or where to source it. For a one-parameter tool the omission is minor but it is a genuine gap the description could have closed.

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 'One job in full' and enumerates exactly what comes back (description, apply_url, interview/knockout questions, CV criteria, invitation gating, interview_mode, instant start), which is far more specific than a name restatement. It distinguishes itself from list_jobs by implication of a single full record, though it never states the retrieval verb or contrast with the list tool explicitly.

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?

It gives a concrete call-side rule: '`version` identifies this content: update_draft_job needs it' — telling the agent to fetch this before updating a draft. It does not say how to obtain a job_id (presumably list_jobs) or warn about when this tool is unnecessary, so no exclusions are stated.

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