DrissionPageMCPServer_Modified

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

With no annotations provided, the description carries full burden for behavioral disclosure. It adds valuable context about timeout control (default 20 seconds) which isn't in the schema, and implies the tool can either connect to an existing browser or launch a new one. However, it doesn't disclose important behavioral traits like error conditions (what happens if connection fails), whether this establishes a persistent session, or what permissions/requirements are needed.

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 appropriately sized with a clear purpose statement followed by parameter explanations. However, it's not optimally front-loaded - the timeout information appears at the end rather than integrated with the purpose. The parameter explanations are clear but could be more efficiently integrated with the main description.

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 this is a browser connection/initialization tool with 4 parameters, 0% schema coverage, no annotations, but with an output schema (which reduces need to describe return values), the description is moderately complete. It covers the basic purpose and parameters but lacks important context about when to use it, error handling, and session management that would be helpful for an agent.

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?

With 0% schema description coverage, the description must compensate for the schema's lack of parameter documentation. It successfully adds semantic meaning for all 4 parameters: explaining what 'port' is for debugging, defining 'headless' as no browser window display, clarifying 'incognito' as private mode, and identifying 'user_data_dir' as user data directory. This provides essential context beyond the bare schema titles.

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 as '连接到浏览器或启动新浏览器' (connect to browser or launch new browser), which is a specific verb+resource combination. It distinguishes itself from sibling tools like 'navigate' or 'new_tab' by focusing on browser connection/initialization rather than page navigation or tab management. However, it doesn't explicitly differentiate from all possible alternatives in the sibling list.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., whether a browser must already be running), when to choose connection vs. launch, or when to use this versus other browser-related tools in the sibling list. The agent receives no contextual usage instructions.

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