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

With readOnlyHint=true already covering the safety profile, the description still adds substantive context by naming the returned fields (price, quantity, tickets_count sold, sold_out/off_sale/secret flags, sale window, share_url) despite no output schema existing. This is valuable disclosure of what the call yields, though pagination behavior is unmentioned.

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?

One compact sentence front-loads the purpose, enumerates the payload, and appends the underlying API mapping with zero filler. Every clause earns its place.

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 list tool with no output schema, the description covers purpose, returned fields, and the API endpoint, while annotations cover the safety profile and the schema covers parameters. Nothing an agent needs to invoke it correctly is missing, bar a minor note on pagination.

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 page, page_size, event_slug and account_slug are already fully documented in the schema. The description adds no format or usage detail beyond that, 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 (List) plus resource (an event's releases) and an explicit gloss that releases are Tito's ticket types, which is the exact term an agent might search for. It also maps cleanly against siblings like tito_get_release (single) and tito_list_tickets (a different resource).

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?

The description makes the scope clear (all releases for one event), which implies when to use it versus tito_get_release, but it never states that alternative or any exclusion. Usage is inferable rather than stated.

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