Bulk Update Subcontractor Invoice (Requisitions) Items

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

The description reveals that the tool performs a partial update (only supplied fields are changed) and returns the modified object. It also lists required parameters and the API endpoint. Annotations (readOnlyHint=false, destructiveHint=false) are consistent. There is no annotation contradiction.

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 three sentences plus a line listing required parameters and endpoint. It is reasonably concise and front-loaded, though there is minor redundancy between 'Updates all requisition items received in the body' and 'Updates the specified Commitments'.

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?

The description covers the core operation, item types, and partial update behavior. However, it lacks detail on the structure of the requisition_items array (e.g., required fields, allowed keys), which is important because the input schema defines it as an array of {} with no further specification. This gap may hinder correct usage.

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 description adds context beyond the schema by explaining that requisition_items can be contract items, contract detail items, or change order items, and that only supplied fields are changed. The schema descriptions are minimal, so this additional information is valuable.

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 it updates all requisition items in the body and specifies the item types (contract items, contract detail items, change order items). It identifies the resource and action, but does not explicitly differentiate from sibling tools like update_requisition_subcontractor_invoice_contract_item, which perform single-item updates.

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 mentions 'Use this to update an existing Commitments (only the supplied fields are changed)', implying a partial update. However, it does not provide explicit guidance on when to prefer this tool over individual update tools, nor does it list any exclusions or prerequisites.

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