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

With no annotations, the description carries full responsibility. It does disclose that actual payment is gated by a human, which is useful, but it does not explain what the tool actually does (e.g., whether it uploads, generates files, or only prepares data). The phrase '盛らない' is vague and without context.

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 very short, but it sacrifices clarity for brevity. The mixed Japanese phrases ('盛らない', '人間ゲート') are not self-explanatory and could confuse an agent. A clear, structured explanation would be more effective than this cryptic style.

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 complexity of an ordering package (Gerber, BOM, CPL, procedures) and the absence of annotations or output schema, the description is severely underwhelming. It fails to explain key details like file formats, upload behavior, payment flow, or parameter usage, leaving the agent with only a vague hint.

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%, and the description provides no information about the 'qty' and 'prompt' parameters. The agent is left entirely uninformed about what these parameters mean, expected formats, or their roles. There is no compensation for the missing 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 lacks a clear verb and resource. It says 'Order package summary' and mentions JLCPCB upload/payment, but it's ambiguous whether the tool generates, uploads, or summarizes the package. The phrase '盛らない=実支払いは人間ゲート' is cryptic and doesn't clarify the primary function.

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 explicit guidance on when to use this tool versus alternatives. The mention of 'human gate' hints at a workflow but fails to specify when a user should invoke this tool or what prerequisites exist. No alternatives are referenced.

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