manage_calendar

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

No annotations are provided, so the description carries the entire behavioral burden, and it discloses almost nothing: no mention of destructive delete/update semantics, no permission or auth requirements, no return format, no rate limits. The only genuinely useful behavioral notes (patch semantics, attendee replacement, all-day conversion) exist in the schema descriptions, not 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?

The single sentence is front-loaded and waste-free, but for a tool with nine operations and twenty parameters it is under-specified rather than genuinely concise. Brevity here is achieved by omission, not by efficient structuring.

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?

The schema is exceptionally self-documenting (100% coverage, operation enum enumerating semantics), which compensates for much of the description's silence, and there is no output schema to explain. Still, a nine-operation tool with no annotations and no destructive-operation warnings leaves the agent relying entirely on schema text for routing and safety.

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 detailed per-parameter and per-operation documentation in the schema, so the baseline is 3. The description adds no parameter-level meaning whatsoever beyond what the schema already provides.

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 concrete verbs (list events, view agenda, check availability) plus a catch-all ('manage calendar events') against the calendar resource, so an agent can tell this is the multiplexed calendar tool. It is clear but does not differentiate from siblings like manage_meet, manage_contacts, or manage_tasks, and it never signals that this one tool actually spans nine distinct operations.

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 four phrases imply usage modes (viewing vs. managing), which roughly maps to the read/write split in the operation enum. However, the description itself gives no when-to-use guidance, no alternatives, and no routing between operations or siblings — the rich per-operation guidance lives entirely in the schema's operation enum, not in the description.

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