Open Verification Window

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

With no annotations, the description carries the full behavioral burden and does a good job: it explains that the window stays in front, does not need to be closed, and enables later requests in the same browser session to pass. It does not cover edge cases such as what happens if no browser session exists, but the key session-persistence behavior is disclosed.

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?

Two short sentences, front-loaded with the purpose and followed by the important post-completion behavior. Every sentence adds useful information with no waste.

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 simple zero-parameter interface, absence of annotations, and presence of an output schema, the description covers the essential purpose and session behavior. It could be slightly more complete by stating when a verification window is likely needed, but it is adequate for correct invocation.

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 tool takes zero parameters, so there are no parameter semantics to document; baseline 4 applies. The description appropriately does not add irrelevant parameter details.

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 states a specific action and resource: opening a CNKI verification window for manual slider or click-image verification. It is clearly distinct from sibling tools such as search_cnki or read_paper_fulltext, though it does not explicitly name alternatives or contrast itself with tools like renew_session.

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?

It gives a clear usage context: call this when CNKI requires manual slider or click-image verification. It does not explicitly state when not to use it or name an alternative tool, but the context is sufficiently clear for an agent to infer the situation.

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