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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and openWorld, so the safety profile is covered. The description contributes beyond that by disclosing a side effect the annotations cannot convey: optional date/spots input produces a prefilled booking link, which matters for callers deciding whether to supply those fields.

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?

Two sentences, front-loaded with the resource and its scope, then the identifier/parameter guidance. The long field enumeration is somewhat redundant given an output schema exists, but it does communicate breadth of the response in one glance, so the length is defensible.

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?

Covers identifiers, optional prefill behavior, and the shape of the response, and an output schema exists so return values need no further explanation. The remaining gap is workflow placement: it does not tell the agent whether to call this before check_availability/quote_booking/get_booking_link or in place of them.

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 100%, so every parameter is already documented inline, and the description mostly echoes the schema ('to prefill the booking link' is verbatim from the `date` and `spots` descriptions). It correctly flags space_id vs slug as alternatives, but says nothing about currency, utm_source, or the starts_at/ends_at pairing, so it adds little beyond the schema.

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 concrete verb/resource ('Full listing of a space') and enumerates exactly which fields come back: description, venue, address, capacity, pricing tiers, amenities, hours, rating and reviews. It ties itself to search_coworks as the producer of its identifiers, which helps an agent slot it into the workflow, but it never explicitly contrasts with check_availability, quote_booking or get_booking_link.

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 entry path ('space_id` or `slug` (`search_coworks` returns both)') and states the value-add of passing date/spots: the booking link comes prefilled. That is real usage context, but there is no when-not guidance and no statement of how this differs from the availability/quote/link siblings.

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