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Forensics Utils MCP Server

Forensics Utils MCP Server

by jus1-c
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

chromium_parse_preferences_tool

Parse Chromium Preferences and Secure Preferences from browser profiles to extract configuration data for forensic analysis. Supports key_path filtering and result limits to target specific settings.

Instructions

Parse Chromium Preferences and Secure Preferences data. Typical profile path: "C:\Users<user>\AppData\Local\Google\Chrome\User Data\Default".

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": {
      "profile_path": "<profile_path>"
    },
    "name": "chromium_parse_preferences_tool"
  }
}

Input Schema

NameRequiredDescriptionDefault
limitNoMaximum number of preference entries to return
key_pathNoOptional dot-separated preference path filter
profile_pathYesAbsolute path to the Chromium profile directory

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.9/5.0
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 only says 'Parse' without disclosing whether the operation is read-only, what happens on missing files, or what output to expect. Minimal behavioral insight beyond the basic verb.

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 extremely concise: two sentences, the first stating the action and the second giving a helpful example path. Every word earns its place without unnecessary elaboration.

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

Completeness2/5

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

Despite having a schema and output schema, the description lacks usage guidelines and behavioral transparency, which are crucial for a tool with no annotations. The path example is useful but does not compensate for the missing contextual information.

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?

All three parameters (limit, key_path, profile_path) have descriptions in the schema, providing full coverage. The description adds no extra parameter meaning beyond the schema, so the baseline 3 is appropriate.

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 it parses Chromium Preferences and Secure Preferences data, identifying the specific resource and action. It doesn't explicitly contrast with sibling tools like chromium_parse_history_tool, but the resource is distinct enough that the purpose is unambiguous.

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?

No guidance is given about when to use this tool versus alternatives. It only provides a typical file path, which is contextual but not about when to invoke the tool. Lacks any exclusions or alternative recommendations.

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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