get_book_bills

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

With no annotations, the description carries the full burden of behavioral disclosure. It does disclose the return structure ({Bill:[...], syncTime, hasMoreData}) and the pagination convention (page starts at 0, use hasMoreData). However, it does not explicitly state that this is a read-only operation, or mention any authentication requirements or side effects. The endpoint path suggests GET, but this is not stated.

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 a single, well-structured sentence that leads with the core purpose, includes the endpoint, the return object, and the critical pagination rule. Every clause is necessary and there is no redundancy. Excellent front-loading.

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 there is no output schema, the description adequately explains the return values and pagination pattern. It covers the essential behavior for an agent to call the tool correctly. Minor omissions, such as error handling or authentication, are not critical for basic invocation. It is sufficiently complete for its complexity.

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 input schema has 100% description coverage, so the baseline is 3. The description adds the HTTP path and return format, but no additional meaning for the parameters themselves. It reinforces the page-start-at-0 convention and the default for user_id, but these are already present in the schema descriptions. Thus, no extra value beyond the schema.

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 the tool's purpose: '分页查询账本账单' (paginated query of ledger bills). It includes the HTTP endpoint and explicitly differentiates this retrieval operation from the many sibling tools that save, delete, or modify bills. The verb, resource, and pagination scope are unambiguous.

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 when to use the tool (whenever you need a paginated list of bills for a ledger) via its clear purpose, but it does not explicitly state when not to use it or mention any alternatives (e.g., get_bill_count for counts, sync_pull for synchronization). No exclusion criteria or comparison to siblings is provided.

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