Calendar month view

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is fully covered. The description adds nothing beyond them — it does not mention the local cache that the 'fresh' parameter implies, nor what the counters represent or how they are scoped.

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?

A single front-loaded sentence with no filler or redundancy. It is sized appropriately for prose, though its brevity reflects under-specification rather than economy of information.

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 4-parameter tool with no output schema and no annotations explaining return structure, the description leaves the key questions unanswered: what a 'counter' is, whether results are aggregated per day or per resource, and how caching affects freshness. An agent cannot confidently predict the response shape.

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%, with start_date/end_date documented as first/last day of the month and resource_ids explained as a staff/station filter, so the schema carries the parameter burden. The description adds no format, default, or interaction detail (e.g. that start/end must span exactly one month).

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 names a resource domain (month view of the calendar) and hints at the payload ('counters and bookings'), which partially separates it from calendar_agenda. But 'counters' is undefined jargon and there is no clear verb specifying whether it retrieves, aggregates, or lists.

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?

No indication of when to prefer this over calendar_agenda, calendar_open_slots, or calendar_changed_dates, and no stated prerequisites such as a required date range or resource scoping. The agent must infer the month-vs-agenda split from the tool name alone.

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