Place purchase order (requires confirm:true)

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

Despite no annotations, the description fully discloses that this is a purchase commitment that emails a PO, refuses without confirm:true, and defaults to quoted values. This is comprehensive behavioral disclosure for a mutation tool.

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 two sentences long and front-loaded with the main action. The second sentence packs important details but could be more structured for readability. Still, it is concise with no waste.

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?

Given no output schema or annotations, the description covers the tool's purpose, safety, and parameter defaults well. It does not describe return values or errors, but for a mutation tool this is acceptable. Fairly 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?

Schema description coverage is 40%, but the description adds meaningful context for bought_price/bought_quantity (defaults and override use) beyond the schema. It does not elaborate on rfq_item_id, but overall it compensates partially.

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 clearly states 'Place the purchase order on a winning quote' with a specific verb and resource, and it is distinct from sibling tools which are about supplier management, RFQ lifecycle, and reminders.

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?

The description provides clear when-to-use guidance by emphasizing the need for explicit user approval and setting confirm:true. It also explains default behaviors for bought_price/bought_quantity, though it does not explicitly mention alternative tools.

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