bulk_create_events

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

No annotations are provided, so the description carries the full behavioral burden. It never states whether the batch is atomic, what happens if one event in the array is invalid, whether partial successes are possible, or what identifiers are returned. The dryRun behavior is documented in the schema, not the description, so it earns no credit here.

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 short sentences, front-loaded with the verb+resource and the scope, with every sentence carrying distinct information (what, why, field shape). 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 mutation tool with no annotations and no output schema, the description should cover failure semantics and return expectations; it covers neither. The schema's dryRun flag partially mitigates this, but the agent still can't tell whether a mid-array failure aborts the whole call.

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 the schema already documents calendarId, events, dryRun and the per-event field list. The description's note that each array item uses the same fields as create_event adds a useful cross-reference, but the baseline of 3 applies when the schema does the heavy lifting.

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 verb (create) and resource (calendar events), with the 'multiple in one call' scope made explicit. It explicitly distinguishes itself from the sibling create_event by naming it as the repeated-call alternative.

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 condition for choosing this tool: use it instead of calling create_event repeatedly when creating several events. There are no explicit when-not-to-use cases (e.g. single event, cross-calendar batches), so it falls short of a 5.

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