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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description adds the meaningful extra that results are user-scoped and require login authorization, but says nothing about pagination, empty-result behaviour, or how multiple saved results are ordered.

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?

A single tight sentence with no filler, and the authorization precondition is front-loaded ahead of the payload description. It could have spent one more clause on the testIds filter without becoming bloated.

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?

There is no output schema, and the description compensates partially by naming the returned content (results, sources, versions). It still omits the shape of the response (single vs list), what happens with no saved results, and the role of the only parameter, so it is not fully sufficient for a read tool returning structured data.

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% at the parameter level, so the description must compensate and it does not — testIds is never mentioned. It is unclear whether passing testIds filters the results or whether omission returns all saved results, which is exactly the ambiguity an agent needs resolved before calling.

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 (读取) and a specific resource (已保存的完成结果、来源和版本), so the agent knows this returns persisted results rather than live computation. It does not explicitly contrast with near-neighbours like get_example_result or get_report_pdf, leaving the boundary to be inferred.

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 precondition "用户登录授权后" establishes that an authenticated user context is required, which is useful routing information. However, there is no statement of when to prefer this over get_example_result or get_report_pdf, and no exclusion of cases such as empty history or unauthenticated callers.

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