list_events_by_series

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

With no annotations, the description carries the full behavioral burden. It states that the response is paginated and that authentication requires a Bearer token, which is useful. However, it omits pagination parameters and limits, error behavior, and ordering defaults beyond the enum-like values.

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?

The description is short and front-loads the purpose, endpoint, parameters, and authentication in a clear labeled structure. It is efficient, though the parameter list could be tightened if the schema already covers it.

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 paginated list endpoint with no output schema and no annotations, the description covers the core call requirements (endpoint, auth, main parameters) but leaves pagination controls and return structure unspecified, which an agent would need for correct invocation.

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 parameter documentation already exists in the schema. The description lists time_filter and order_by values and the date range parameters, adding minor value by enumerating possible values, but it does not cover event_series_id semantics beyond 'required'.

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 states a specific verb and resource: 'List Events by Event Series ID', and the ENDPOINT line names the resource path GET /series/{event_series_id}/events/. This clearly distinguishes it from sibling list tools like list_events, though it does not explicitly name those alternatives.

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 implies usage by naming the required event_series_id and the endpoint, but it does not say when to prefer this over the sibling list_events tool or what happens if the ID is unknown. Usage is inferrable but not explicit.

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