Baidu auth status

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

With no annotations, the description carries the burden of disclosing behavior. It states the check action and implies a boolean result, but it does not explicitly clarify whether the token is merely locally present or validated against the server, nor does it describe potential errors or side effects. More detail would improve transparency.

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, straightforward sentence with no filler. It directly states the tool's purpose and is appropriately sized for a simple status-check tool.

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 zero-parameter tool with no output schema, the description is mostly complete: it clearly conveys the function and implies a boolean return. A minor gap is that it does not explicitly state what the tool returns (e.g., 'true if token exists, false otherwise'), but this is easily inferable from the wording.

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 has zero parameters and the schema is empty, so the description does not need to explain any parameters. The baseline for zero parameters is 4, and the description meets this easily by being clear about the tool's purpose.

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 uses a specific verb 'check' and clearly identifies the resource (MCP server's Baidu Netdisk access token). It distinguishes itself from sibling auth tools (e.g., baidu_auth_url, baidu_auth_refresh) by focusing on status verification rather than obtaining or refreshing tokens.

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 for verifying authentication state, but it does not provide explicit guidance on when to use this tool versus alternatives. It lacks context such as 'check before performing authenticated operations' or 'if the token is missing, use baidu_auth_qrcode to initiate authentication'.

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