complete_item

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

With no annotations, the description carries full burden for behavioral disclosure. It does reveal the key default behavior (confirm defaults to false, so it previews unless confirmed) and that it marks an item complete. However, it omits details about matching semantics, list-scoping, side effects on related data, or potential errors. This is adequate but not rich.

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 compact sentence that front-loads the core action and the preview/confirm decision. Every word earns its place, and it is well-structured for quick parsing.

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 three parameters with zero schema descriptions, the description leaves key semantics unexplained (especially list_name and what 'matching' means). While an output schema exists, the tool lacks annotations and usage guidance, resulting in an incomplete picture. The description covers the action but not the operational context.

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 0%, yet the description adds no explicit explanations for item, list_name, or confirm. It only implies confirm via 'with confirmation' and the item via 'matching grocery item'. The list_name parameter remains completely unexplained, and the matching mechanism is vague. The description fails to compensate for the lack of schema descriptions.

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 uses a specific verb+resource ('mark a matching grocery item as complete') and clearly distinguishes this from siblings like add_item, remove_item, and move_item. It also highlights the preview/confirmation dual behavior, making the tool's core purpose unambiguous.

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 implicitly establishes when to use it: to complete an item rather than add, remove, or move it. It also provides a workflow hint ('Preview or, with confirmation, mark'), which guides the agent to preview first unless confirm=true. However, it does not explicitly name alternatives or state when not to use it.

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