chrome-debug-mcp

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 states the action but lacks details on permissions needed, whether it waits for page load, error handling (e.g., invalid URLs), or side effects (e.g., navigation might trigger redirects). This is a significant gap for a mutation tool with zero annotation coverage.

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, efficient sentence with zero waste, clearly front-loaded with the core action. Every word earns its place, making it easy to parse quickly.

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 complexity of a navigation tool (a mutation with potential side effects), no annotations, no output schema, and incomplete parameter documentation, the description is inadequate. It should cover more behavioral aspects like success criteria, error cases, or interaction with other tools (e.g., 'pause_on_load').

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 description adds minimal semantics beyond the input schema, which has 0% coverage. It implies the 'url' parameter is for navigation but doesn't specify format (e.g., must be valid HTTP/HTTPS) or constraints. With low schema coverage, the description doesn't fully compensate, but it at least hints at the parameter'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 clearly states the action ('navigate') and target ('current Chrome tab to a URL'), making the purpose evident. It distinguishes from siblings like 'reload' or 'scroll' by specifying URL navigation. However, it doesn't explicitly mention it's for browser automation, which could be inferred from context but isn't stated.

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?

No guidance is provided on when to use this tool versus alternatives like 'reload' for refreshing or other navigation-related tools. The description implies usage for changing URLs but doesn't specify prerequisites (e.g., Chrome must be running) or exclusions (e.g., not for file URLs).

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