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pipethedev
by pipethedev

browsercat_navigate

Navigate to a specified URL using a cloud browser service to automate web browsing tasks without local installation.

Instructions

Navigate to a URL

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYes

Implementation Reference

  • Executes the browsercat_navigate tool by navigating the Puppeteer page to the provided URL and returning a success text message.
    case "browsercat_navigate":
      await page.goto(args.url);
      return {
        content: [{
          type: "text",
          text: `Navigated to ${args.url}`,
        }],
        isError: false,
      };
  • Defines the tool schema for browsercat_navigate, including name, description, and input schema requiring a 'url' string property.
    {
      name: "browsercat_navigate",
      description: "Navigate to a URL",
      inputSchema: {
        type: "object",
        properties: {
          url: { type: "string" },
        },
        required: ["url"],
      },
    },
  • index.ts:421-423 (registration)
    Registers the list of available tools, including browsercat_navigate, for the ListToolsRequestSchema.
    server.setRequestHandler(ListToolsRequestSchema, async () => ({
      tools: TOOLS,
    }));
  • index.ts:425-427 (registration)
    Registers the general tool call handler that dispatches to specific tool implementations based on the tool name.
    server.setRequestHandler(CallToolRequestSchema, async (request) =>
      handleToolCall(request.params.name, request.params.arguments ?? {})
    );
Behavior1/5

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

No annotations are provided, so the description must fully disclose behavioral traits. It only states the action 'Navigate to a URL' without any details on what happens during navigation (e.g., page load behavior, error handling, timeouts, or whether it's a read-only or mutative operation). This leaves critical behavioral aspects like permissions, side effects, or response format completely unspecified, making it inadequate for informed tool selection.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description 'Navigate to a URL' is extremely concise and front-loaded, consisting of a single, direct sentence. There is no wasted verbiage or unnecessary elaboration, making it efficient for quick understanding. However, this conciseness comes at the cost of completeness, as noted in other dimensions.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (involving browser navigation, which can have side effects), lack of annotations, no output schema, and low schema description coverage, the description is highly incomplete. It does not address what the tool returns, error conditions, dependencies on other tools (e.g., needing a browser session), or how it fits with siblings. This makes it insufficient for safe and effective use by an AI agent.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 1 parameter (url) with 0% description coverage, meaning the schema provides no semantic details. The description does not add any meaning beyond the parameter name; it does not explain what constitutes a valid URL, format requirements, or examples. Since schema coverage is low, the description fails to compensate, leaving the parameter's semantics unclear.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'Navigate to a URL' clearly states the action (navigate) and target (URL), making the purpose understandable. However, it lacks specificity about what 'navigate' entails (e.g., browser navigation, page load) and does not distinguish it from sibling tools like 'browsercat_click' or 'browsercat_select', which might involve similar navigation contexts. It avoids tautology but remains vague in scope.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

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 does not mention prerequisites (e.g., needing an active browser session), exclusions, or comparisons to sibling tools like 'browsercat_evaluate' or 'browsercat_fill', which might be used in different interaction contexts. Usage is implied only by the verb 'navigate', but no explicit instructions are given.

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

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