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pilot_forward

Navigate forward in browser history to revisit previously viewed pages during automated web browsing sessions.

Instructions

Go forward in browser history.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Implementation Reference

  • Implementation of the pilot_forward tool handler within registerNavigationTools.
    server.tool(
      'pilot_forward',
      'Go forward in browser history.',
      {},
      async () => {
        await bm.ensureBrowser();
        try {
          const page = bm.getPage();
          await page.goForward({ waitUntil: 'domcontentloaded', timeout: 15000 });
          bm.resetFailures();
          return { content: [{ type: 'text' as const, text: `Forward → ${page.url()}` }] };
        } catch (err) {
          bm.incrementFailures();
          return { content: [{ type: 'text' as const, text: wrapError(err) }], isError: true };
        }
      }
    );
Behavior2/5

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

With no annotations provided, the description carries full disclosure burden but fails to state what happens when at the end of history (error vs silent failure), whether the operation waits for page load completion, or any side effects on browser state.

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 is a single, five-word sentence that front-loads the action verb. There is zero redundancy or waste; every word is essential to the meaning.

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

Completeness3/5

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

For a simple history navigation tool with no parameters, the description covers the essential action, but lacks completeness regarding edge case behavior and return values given the absence of both annotations and output schema documentation.

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

Parameters4/5

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

The input schema contains zero parameters. According to evaluation standards, zero parameters establishes a baseline score of 4, as there is no parameter semantics information required beyond what the empty schema conveys.

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

Purpose4/5

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

The description clearly states the specific action (go forward) and resource (browser history), effectively distinguishing it from sibling tool pilot_back through the directional verb. It is immediately clear what operation this performs.

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 versus pilot_back, nor does it mention prerequisites (e.g., requiring a previous back navigation) or failure conditions (e.g., when no forward history exists).

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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