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

Annotations already declare the write/mutation profile (readOnlyHint=false, idempotentHint=false, destructiveHint=false). The description usefully adds that the result is a *queued* answer publication plus a version, which tells the agent the write is asynchronous. It does not address permissions, duplicate-submission behavior, or what happens to prior answers, despite the non-idempotent hint.

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 English sentence is front-loaded and efficient, but the full Chinese restatement doubles the length without adding information, violating conciseness.

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?

For a 5-parameter mutation tool with 0% schema description coverage and no output schema, the description leaves key gaps: request_id is unmentioned, answer field semantics (decline, factory_says_zh) are undefined, and non-idempotent duplicate-submission risk is not addressed.

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%, so the description must carry parameter meaning. It names order_pack_id, version, answers' line_id, and new_lines, but never explains the required request_id, nor the answer-level fields decline and factory_says_zh, nor the new_lines item fields.

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?

States a specific verb and resource: submit factory answers for line_id entries at a given order_pack_id/version, optionally adding new_lines. This distinguishes it from sign_order_pack_lines and decline_order_pack in substance, but no sibling is named explicitly.

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 by mentioning 'at the current order_pack_id/version', but never states when to choose this over sign_order_pack_lines or decline_order_pack, nor any prerequisites or exclusions.

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