Create Invoice Series

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

Annotations already declare readOnlyHint=false, idempotentHint=false, and destructiveHint=false, so the write/safety profile is partly covered. However, the description adds nothing beyond that — it does not say what a series is, whether prefixes must be unique, whether the new series becomes usable immediately, or what side effects creation has. With a lower bar due to annotations, this still only reaches 2.

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?

It is short and front-loaded, but brevity here reflects under-specification rather than economy; the single phrase conveys no information beyond the tool name, so nothing meaningful is front-loaded.

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?

This is a mutation tool with five required parameters, no output schema, and no domain explanation of what an invoice series is or how it interacts with invoice numbering. Given the complexity of the operation and the surrounding invoice-series tool family, the description is inadequate.

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% and all six properties carry descriptions, so the schema carries parameter meaning on its own. The description contributes nothing extra, which is the baseline 3 when structured fields do the work.

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?

"Create an invoice series" merely restates the tool name and title with no added detail about scope, effect, or how it differs from siblings like update_invoice_series or create_sale_invoice. It is a tautology of the structured fields rather than a clarifying purpose statement.

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?

No when-to-use guidance, no prerequisites, and no mention of alternatives such as list_invoice_series or update_invoice_series. The agent must infer entirely from the name that this is the tool for setting up a new numbering series.

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