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

readOnlyHint=true already declares the safety profile, so the description's main added value is disclosing the underlying endpoint (GET /events) and the shape of returned records (dates, location, RSVP setting). It says nothing about pagination defaults, result caps, or ordering, which matters for a paged list endpoint.

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 clauses, resource and content description front-loaded, endpoint stated last. Efficient with essentially no filler; the API line is mildly redundant but useful for traceability.

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 four-parameter read-only list with no output schema, the description covers what the tool returns and how to address it. The only real gap is pagination/result-cap behavior, which the schema partially implies.

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?

All four parameters carry full schema descriptions (100% coverage), including paging semantics for since_id and datetime formats for since_created/since_updated. The description adds no parameter meaning beyond that, so the baseline of 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 ('events') with a parenthetical clarifying what an event record contains (dates, location, RSVP setting), which separates it from galaxydigital_get_event's single-record read. It does not explicitly name a sibling for differentiation, but the resource scoping is unambiguous.

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 the resource name and by the pagination/filter parameters, but the description never says when to prefer this over galaxydigital_get_event or how it relates to agency-scoped listings. No exclusions or prerequisites are stated.

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