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

With no annotations, the description carries full burden and does well by stating 'This is a binding commitment — you agree to pay the listed budget if the human accepts and completes the work.' This is a critical side effect not inferable from the schema. It also notes that a notification is sent to the human.

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?

The description is three sentences, each earning its place: the action, the key caveat, and the follow-up workflow. It avoids unnecessary detail and is front-loaded with the main purpose.

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 tool with no output schema and no annotations, this description covers the purpose, prerequisites, workflow, and financial obligation. It lacks an explicit return value description but the subsequent flow (get_job_status → ...) implies how to track the result, making it sufficiently complete.

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?

The schema already describes all three parameters, and the description adds meaning by pointing to get_listing_applications as the source for application_id. This helps the agent obtain the correct value, though it doesn't add details for listing_id or agent_key (already clear).

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 starts with a clear verb phrase 'Hire a listing applicant' and elaborates with 'Creates a standard job from the listing and notifies the human.' This distinguishes it from sibling tools like create_job_offer by being listing-specific.

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 explicitly instructs to get application_id from get_listing_applications, and after the offer, directs to follow the same flow as create_job_offer with a specific sequence. This provides clear when-to-use context, though it could more explicitly state when to choose this over create_job_offer.

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