create_item

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

With no annotations provided, the description carries full burden for behavioral disclosure. It states 'Create a new inventory item' which implies a write/mutation operation, but fails to mention permissions needed, whether creation is idempotent, error handling, or what happens on success (e.g., returns an item ID). This leaves significant gaps for an agent to understand the tool's behavior.

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, efficient sentence with zero wasted words—'Create a new inventory item'—making it front-loaded and appropriately sized for its purpose. Every word earns its place without redundancy.

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 no annotations and no output schema, the description is incomplete for a mutation tool with 9 parameters. It lacks information on return values, error conditions, or behavioral nuances like whether 'quantity' defaults to 1 if omitted. This leaves the agent with insufficient context for reliable invocation.

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 all 9 parameters well-documented in the schema (e.g., 'tag_price' as 'Price in cents', 'inventory_type' with enum values). The description adds no additional parameter semantics beyond the schema, so it meets the baseline of 3 for high schema coverage without compensating value.

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 inventory item' clearly states the action (create) and resource (inventory item), which is specific and unambiguous. However, it doesn't differentiate from sibling tools like 'create_account' or 'create_batch' beyond the resource name, missing explicit distinction in functionality scope.

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 provides no guidance on when to use this tool versus alternatives like 'update_item' or 'create_batch', nor does it mention prerequisites such as required account or category setup. It lacks context for distinguishing among creation tools in the sibling list.

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