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generate_bip39

Generate BIP39 mnemonic phrases for cryptocurrency wallets by specifying word count (12, 15, 18, 21, or 24 words).

Instructions

Generate BIP39 mnemonic phrases

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
wordCountNoNumber of words in the mnemonic
Behavior2/5

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

The description states 'Generate,' implying a creation operation, consistent with annotations (readOnlyHint: false). However, it discloses no behavioral details beyond this, such as security implications or side effects.

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 sentence that efficiently states the tool's purpose with no wasted words. It is appropriately sized for a simple tool.

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?

For a simple tool with one parameter and clear schema documentation, the description is mostly complete. It could optionally mention the word count options, but the schema already covers that. No output schema is needed.

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 description coverage is 100% for the single parameter wordCount. The tool description does not add any additional meaning beyond what the schema provides, earning a baseline score of 3.

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 'Generate BIP39 mnemonic phrases' uses a specific verb (generate) and identifies the resource (BIP39 mnemonic phrases). It clearly distinguishes this tool from sibling tools like generate_password or generate_token.

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 provided on when to use this tool versus alternatives such as generate_password. The description lacks context for appropriate use cases or exclusions.

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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