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Forensics Utils MCP Server

Forensics Utils MCP Server

by jus1-c
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
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binwalk_extract_tool

Automatically extract embedded files (ZIP, ELF, etc.) from a binary and recursively unpack nested archives.

Instructions

Extract embedded files from a binary using binwalk.

Automatically extracts known file types (ZIP, ELF, etc.) found within the binary. Uses recursive extraction to handle nested archives.

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": {
      "file_path": "<file_path>"
    },
    "name": "binwalk_extract_tool"
  }
}

Input Schema

NameRequiredDescriptionDefault
file_pathYesPath to the file to extract from
output_dirNoOptional custom extraction directory. When omitted, files are written to ``./extractions/<filename>/``.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4/5.0
Behavior3/5

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

With no annotations provided, the description carries the full burden. It discloses that extraction is automatic for known file types and uses recursive extraction, which is useful. However, it does not elaborate on side effects like filesystem writes, potential overwrites, cleanup behavior, or error handling, leaving some gaps for an agent.

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 two sentences, front-loaded with the core purpose, and contains no filler. Every sentence adds meaningful information about the tool's behavior, making it highly concise and well-structured.

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

Completeness4/5

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

Given the tool's moderate complexity (2 parameters, no annotations, but an output schema exists), the description covers the essential aspects: purpose, method, and recursive behavior. The output schema handles return value documentation, so the description does not need to explain those. It is reasonably complete for an agent to select and use the tool correctly.

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

Parameters3/5

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

The schema already provides complete descriptions for both parameters (file_path and output_dir), including the default output directory behavior. The tool description adds no additional parameter semantics beyond what the schema already states, so the baseline of 3 is appropriate.

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 opens with a clear verb+resource statement: 'Extract embedded files from a binary using binwalk.' It further specifies that it handles known file types and recursive extraction, making its purpose unambiguous and distinct from the sibling 'binwalk_scan_tool' which likely only scans without extracting.

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

Usage Guidelines4/5

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

The description clearly implies when to use this tool: when you need to extract embedded files from a binary. It does not explicitly mention alternatives or when not to use it, but the context of 'extract' versus the sibling 'binwalk_scan_tool' provides sufficient guidance for an agent.

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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