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

Adds meaningful context beyond the annotations: the first send creates the request whose receipt token is reused by request_status and offers, and a later send of a changed requirement creates a revision of the same request. This clarifies what idempotentHint=true actually keys on (the revision) and reassures that nothing is purchased. It does not say what the call returns or whether the requirement becomes immutable afterward.

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 action and trigger, then the lifecycle semantics, then the boundary condition. The sentence 'the first send records the request (its receipt token is the requirement's token, for request_status and offers)' is dense and takes a second read, but no sentence is 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?

No output schema exists, so the description should cover what a successful send yields; the receipt-token aside hints at it but never states a return value or confirmation. For a non-destructive write with a nested contact object and an undocumented op_id, this leaves a couple of gaps an agent would want covered.

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?

With 50% schema coverage, the description partially compensates: it explains that token doubles as the request's receipt token and instructs which revision value to supply ('Name the revision the buyer saw'). It says nothing about op_id, contact, or the action default, all of which matter for a 6-parameter mutation.

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 ('Send the requirement to Commonstop') plus the governing precondition ('once the buyer says to'). The first-send/later-send distinction implicitly separates it from edit_requirement, though no sibling is named, so differentiation is inferred rather than stated.

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?

Gives a clear trigger condition ('once the buyer says to') and a clear exclusion at the opposite end of the lifecycle ('This orders nothing: an offer comes later and is accepted separately'). It does not name edit_requirement or submit_request as alternatives for the changed-requirement case, leaving that comparison to the agent.

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