skylight_link_apple_calendar

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

With no annotations, the description carries full burden. It does not disclose side effects (e.g., whether existing linked calendar is replaced), required permissions, or error behavior. The mention of 'app-specific password' is helpful but insufficient for safety.

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 description is a single concise sentence with no extraneous words. It is front-loaded with the core action. However, it could be slightly expanded for completeness without losing conciseness.

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?

No output schema exists, but the description does not explain the return value or success/error indicators. It lacks details on what happens after linking (e.g., calendar appears in list, duplicate handling), making it incomplete for an operation.

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 67%, but the tool description only rephrases the app-specific password parameter. The 'frameId' parameter is undocumented in both schema and description, leaving its purpose unclear.

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 clearly states the action ('link') and the resource ('Apple/iCloud calendar') and specifies the method ('using an app-specific password'). It distinguishes from sibling tools like skylight_add_webcal that link via webcal, providing a clear purpose.

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 usage guidance is provided. It does not specify when to use this tool versus alternatives (e.g., other calendar linking tools), nor does it mention prerequisites like having an Apple ID or generating an app-specific password.

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