add_bom_item

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

With no annotations, the description carries the burden of behavioral disclosure. It discloses the key side effect of stock reservation when linked to inventory and explains status semantics. However, it omits details about error conditions, permissions, or reversibility, which would make it more transparent.

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 concise and well-structured, with a clear opening sentence and a bullet-like Args list. Every line provides necessary information, avoiding unnecessary fluff.

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 the tool's moderate complexity and the existence of an output schema, the description sufficiently covers the operation and side effects. However, it lacks information on error scenarios, prerequisites, or potential impacts on related data, which would enhance completeness.

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 schema has 0% description coverage, but the Args section explains each parameter, including status options and inventory_item's stock reservation effect. This adds meaning well beyond the schema's minimal field names and types.

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 'Add a Bill of Materials line item to a project', using a specific verb and resource. It also notes stock reservation when linked to inventory item, distinguishing it from list-only siblings like list_materials.

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 implies usage for adding BOM items via its purpose but does not explicitly state when to use this tool vs alternatives, nor any exclusions. There is no mention of when not to use it or preferred alternatives.

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