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brentspore

buildutilities-mcp

by brentspore

Generate Password

generate_password
Read-only

Create cryptographically random passwords, ensuring at least one character from each enabled character set (uppercase, lowercase, digits, symbols).

Instructions

Generate a cryptographically random password. Guarantees at least one character from every enabled set. Use this rather than inventing a password — model-authored ones are guessable. Web version: https://buildutilities.com/password-generator

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
countNoHow many passwords
digitsNo
lengthNoCharacters in each password
symbolsNo
lowercaseNo
uppercaseNo
excludeAmbiguousNoDrop characters that look alike: l 1 I O 0 o

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.2

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare readOnlyHint true and destructiveHint false, so the description does not need to restate safety. It adds valuable behavioral context: the password is cryptographically random and guarantees at least one character from each enabled set. This goes beyond the annotations and helps the agent understand the algorithm.

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?

Three sentences with no waste. The purpose is front-loaded, and the web version link is a minor but useful addition. Every sentence earns its place.

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?

The description covers the core behavior and usage clearly. It does not specify the output format (e.g., array of strings when count > 1) or edge cases like all character sets disabled, but these are inferable from the schema defaults and the tool's simplicity. Overall, sufficient for an agent to call 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?

Schema coverage is only 43%, with the boolean parameters (digits, symbols, lowercase, uppercase) lacking descriptions. The description hints at 'every enabled set' but does not explicitly map these booleans to character sets. It partially compensates by implying the toggles, but an agent may still be uncertain about which parameters control which sets.

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?

Clearly states it generates a cryptographically random password and guarantees at least one character from every enabled set. The verb 'generate' with resource 'password' is specific, and it distinguishes itself from sibling tools like generate_uuid and generate_token by focusing on password generation.

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?

Explicitly instructs to use this rather than inventing a password, providing a clear when-to-use directive. It does not explicitly mention alternatives like UUID or token, but the context of password vs. those siblings makes the distinction implicit. No exclusions are stated, but the guidance is strong.

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