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ie-mode-mcp

ie-mode-mcp

by sumikof
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

Navigate

navigate

Opens a specified URL in the browser, enabling AI agents to access legacy web applications requiring IE Mode.

Instructions

Navigate the browser to a URL. The origin must be permitted by IE_MCP_ALLOWED_ORIGINS.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "url": "<url>"
    },
    "name": "navigate"
  }
}

Input Schema

NameRequiredDescriptionDefault
urlYesAbsolute URL to open.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.7/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It discloses the origin permission requirement but fails to mention behavioral details like whether the browser must already be open, whether it waits for page load, or what happens on invalid URLs.

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 only two sentences, front-loaded with the core action in the first sentence, followed by the key constraint. Every word earns its place with no redundancy.

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 tool with one parameter and no output schema, the description covers the action and a key constraint but lacks context about prerequisites (e.g., browser must be started) and error behavior. It is adequate but not thorough.

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 schema already describes the 'url' parameter as 'Absolute URL to open' (100% coverage). The description meaningfully adds that the URL's origin must match IE_MCP_ALLOWED_ORIGINS, which is a critical constraint not present in the schema.

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

Purpose5/5

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

The description states a specific verb ('Navigate') and resource ('the browser to a URL'), clearly distinguishing it from sibling tools like browser_start, browser_close, and click. The added constraint on allowed origins further clarifies scope.

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

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides one condition for use (origin must be permitted by IE_MCP_ALLOWED_ORIGINS) but no guidance on when to choose this tool over alternatives (e.g., if origin is not allowed) or prerequisites like starting the browser first.

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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