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

Annotations already declare the safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=false, idempotentHint=false), so the description only needs to add beyond that. It does contribute one genuinely non-redundant fact — a fixed $0.15 per-call cost — but says nothing about output length/format or that repeated calls are non-idempotent, which matters given idempotentHint=false.

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?

It is short and front-loads the core action in the first sentence, with pricing second. The trailing "Writing a clear posting quickly" is a marketing tagline that does not help an agent decide or invoke and could be dropped.

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 simple two-parameter generation tool this covers the essentials, but with no output schema the description should hint at what comes back (length, structure, whether tone is respected). It also omits that results vary between calls, consistent with idempotentHint=false.

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%, so both parameters are already documented; baseline is 3. The description's "from a short brief" adds a soft hint about desired brevity of the brief but gives no detail on tone usage or expected brief structure.

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?

"Draft a job description from a short brief" gives a specific verb (draft) and resource (job description) plus the required input, so it is distinguishable from nearby siblings like fikra_extract_job_requirements or fikra_generate_interview_questions. It stops short of explicitly naming which sibling to prefer for adjacent hiring tasks.

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?

There is no statement of when to use this versus alternatives (e.g. extract vs generate job content) and no preconditions beyond "short brief". The remaining sentences are about price and a vague benefit claim, not selection guidance.

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