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

Adds real context beyond the annotations: a 20 requests/hour account limit, sharing the same registry as the website, and clarifying it does not certify tickets or enable email notices. That last clause usefully bounds side effects given destructiveHint=false and readOnlyHint=false.

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?

Three compact sentences, front-loaded with the action and the rate limit. The middle sentence is slightly convoluted ('A submitted ticket email needs no request: an email from a theater...'), but no sentence is wasted.

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?

Output schema exists, so return values need no explanation, and the rate limit plus non-effects are covered. However, a 4-parameter submission tool with 0% schema coverage should clarify how the identifying fields are used and matched against the existing registry.

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% across four parameters, so the description carries the burden, yet it explains none of them. Nothing indicates what name/city/country/website are used for, that name is required, or that country expects a two-letter code — the only hint is the loose mention of a 'registry'.

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 action and resource: asking for a cinema that is missing from the registry. It also implicitly separates itself from the submission path (a submitted ticket email needs no request), so an agent can distinguish it from submit_ticket_email, though it never names the sibling directly.

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 exclusion: a theater that already sent a ticket email starts its own setup, so requesting is unnecessary. It does not explicitly say to first check with find_theaters, leaving the trigger condition (theater absent from registry) to inference.

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