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

readOnlyHint=true already establishes the safe-read profile, so the description isn't burdened with that. It adds value by naming the returned attributes and the underlying API route, but says nothing about pagination defaults (the schema's default 50/max 100), total counts, or whether results are scoped to the business.

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 short sentences: the first front-loads what is returned, the second anchors it to the concrete API endpoint. Zero filler and nothing redundant.

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 no output schema, the description correctly supplies the shape of a result item (duration, price, capacity) and maps to the endpoint. All five optional parameters are covered by the schema, so the only gap is that pagination/result-set size behavior is left entirely to the schema.

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% and each parameter (sort, limit, offset, filter, business_id) is documented in-schema, including the login-business default. The description adds no parameter-level guidance, so the baseline 3 applies.

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?

Specific verb+resource (list services), and it enumerates the fields returned (duration, price, capacity), so an agent knows what this yields. It does not differentiate from the sibling reservio_get_service, which shares the same resource — the singular/plural distinction is left implicit.

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?

Usage is implied by 'services clients can book' — i.e., discover bookable services — but there is no explicit statement of when to call this versus reservio_get_service for a single record, and no exclusions or prerequisites mentioned.

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