create_list

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

Annotations already declare the write, non-destructive, closed-world profile, so the safety bar is lower. The description adds a returns line and the kind semantics, but says nothing about permissions, duplicate-list behavior, or whether the list is shared with family members — meaningful gaps for a creation tool.

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?

Front-loaded verb+resource sentence, then scannable bullets and a parameter list — well structured and short. Some content duplicates the schema descriptions verbatim, which costs a little efficiency but not comprehension.

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?

With no output schema, the 'Returns: The created list details' line usefully closes the loop, and all three parameters are covered. What's missing is context about where the created list appears (Skylight device/family scope), which an agent might need to confirm success.

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 coverage is 100%, so the baseline is 3, but the description goes slightly beyond by spelling out what 'shopping' versus 'to_do' means in practice and giving realistic label examples. The color parameter is only restated, not elaborated.

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 and resource ('Create a new list in Skylight') and immediately narrows scope to the two supported list types. The create verb cleanly separates it from sibling tools get_lists, update_list, and delete_list.

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 'Use this when' bullets give concrete trigger conditions (shopping/grocery list, to-do list) that map directly to the two kind values. It does not name alternatives or exclusions (e.g., how this differs from update_list), but the context is clear enough to act on.

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