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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states that auth is required and gives the high-level actions, but does not disclose side effects, whether actions are transactional, or what happens to the offer on accept/reject/counter. This is minimal 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 a single sentence with two clauses, front-loading the core action and providing the auth requirement. Every word contributes, and there is no redundant explanation or 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?

For a tool with four parameters, no annotations, and no output schema, the description is too thin. It omits parameter details, return behavior, side effects, and any guidance on the counter workflow, making it insufficient for an agent to invoke the tool with confidence.

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%, so the description must compensate. It does not define new_amount, message, or explicitly map offer_id to the target offer. The action enum values are partially reflected in the verb list, but no additional parameter semantics are provided beyond the schema names.

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 uses specific verbs ('Accept, reject, or counter') and identifies the exact resource ('a seller's counter-offer'), making the tool's function immediately clear. This clearly distinguishes it from sibling tools like 'place_offer' (initial offers) and 'withdraw_offer' (withdrawing offers).

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 action verbs imply the tool is used when responding to a seller's counter-offer, but there is no explicit guidance on when to use it versus alternatives like place_offer or withdraw_offer. 'Requires auth' is a necessary prerequisite but not a usage guideline or exclusion.

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