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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description adds real value beyond that by enumerating the returned fields (slug, title, dates, location, currency, live/test_mode, public URL), which matters since no output schema exists. It stops short of mentioning pagination behavior or auth scoping, though the schema's account_slug parameter does carry the auth detail.

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 dense sentences, front-loaded with the core action and scope before the return-field list and API references. Every clause carries information an agent can use; there is no 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 read-only, zero-required-param list tool with no output schema, the description covers scope selection, the returned field set, and the backing endpoints. Pagination is only covered by the schema, and no mention is made of result limits, so it is nearly but not fully complete.

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 all four parameters are already self-documenting, making 3 the baseline. The description only restates the scope enum values and maps them to API paths, adding path-level detail but no syntax or format meaning 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?

The description gives a specific verb (List) and resource (an account's events) and enumerates the three scope variants, so its role is unambiguous. It does not explicitly differentiate itself from the sibling tito_get_event, which is the only remaining gap.

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 states that 'upcoming' is the default and names the other two scope options, which implies when each is used. However, it never says when to pick this tool over tito_get_event, nor gives any prerequisite or exclusion guidance.

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