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

Annotations already mark this destructive and not read-only, and the description substantially enriches that: it disappears from search, pending proposals are closed, the action is irreversible, the agent must confirm first, and in-progress trades block removal. These are concrete side effects and preconditions the annotations cannot express.

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?

Four short sentences, each carrying distinct information (when to use, side effects, irreversibility + confirmation, precondition), and the purpose is front-loaded in the first clause.

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?

With an output schema present and 100% schema coverage on the single parameter, the description only needs to carry behavior and preconditions, which it does fully: side effects, irreversibility, confirmation requirement, and the blocking condition. Nothing an agent needs to call this safely is missing.

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?

There is a single parameter whose schema description coverage is 100%, so the UUID format and meaning are already fully documented by the schema. The description only implicitly adds the ownership constraint via 'their own listings', which is the baseline expectation when the schema does the heavy lifting.

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 states a specific verb and resource ('take one of their own listings off TraydStar') and adds the ownership scoping constraint. It does not explicitly distinguish itself from semantically close siblings like set_listing_status, update_listing, or withdraw_handshake, so it stops just short of the top score.

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 gives a clear triggering condition ('when the user wants to take one of their own listings off') and a hard precondition ('a listing that is part of a trade in progress can't be removed'). It stops short of naming an alternative tool (e.g. set_listing_status for temporarily deactivating instead of removing).

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