create_item

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

No annotations are provided, so the description must disclose behavioral traits. It only states the action of creation and gives an example, but does not mention required permissions, side effects, duplicate handling, or whether changes are immediate. This is insufficient for a mutation 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?

The description is a single sentence with an example. It is front-loaded with the purpose, and the example is helpful. Slightly longer than necessary, but overall concise.

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 tool with no output schema and only two parameters, the description is adequate but not complete. It lacks information about the return value (e.g., created item ID) and potential error conditions. Given the standard CRUD nature and sibling context, it meets the minimum viability.

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 input schema covers both parameters with descriptions, so baseline is 3. The description adds value by providing an example with specific keys, which clarifies usage beyond the generic schema description. However, it does not explain that the keys depend on the collection's 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?

The description 'Create a new item in a collection' uses a specific verb and resource, clearly differentiating from siblings like 'create_collection' and 'bulk_create_items'. The example further clarifies the tool's function.

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 does not explicitly state when to use this tool versus alternatives like 'bulk_create_items'. While the sibling list implies that for a single item this tool is appropriate, no direct guidance or exclusion criteria are provided.

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