list_calendar_events_for_day

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

No annotations are provided, so the description must carry the full burden. It states it returns a list or error, but does not confirm read-only nature, side effects, or required permissions. For a list operation, safety is implied but not explicit.

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?

Extremely concise: three sentences covering purpose, parameter format, and return type. No wasted words, front-loaded with action and resource.

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?

Given the tool's simplicity (single param, list output) and presence of an output schema (unseen but noted), the description adequately covers purpose, param format, and return type. Error conditions and event fields are not detailed, but acceptable for a straightforward list tool.

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?

The schema coverage is 0%, but the description adds a clear date format ('YYYY-MM-DD') and an example. This provides meaningful guidance beyond the simple string type in the schema.

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?

Clearly states it lists calendar events for a specific day, using the verb 'list' and resource 'calendar events for a specific day'. This distinguishes it from siblings like 'list_calendar_events' (likely for ranges) and 'check_calendar_availability'.

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 for a single day via the date parameter, but does not explicitly mention when to use this versus alternatives (e.g., 'list_calendar_events' for ranges, 'check_calendar_availability' for time slots). No exclusions or guidance on prerequisites.

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