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snyk-labs

Node.js API Documentation MCP Server

by snyk-labs

get_api_for-buffer

Search Node.js Buffer API documentation by class and method name to retrieve relevant details.

Instructions

Node.js API: Buffer

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
classNoThe class name to search for.
methodNoThe method name to search for.
requiredNo
Behavior1/5

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

No annotations exist, and the description fails to disclose any behavioral traits (e.g., what the tool returns, whether it's read-only, or any side effects). The description carries the full burden but provides no behavioral information.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

While the description is short (one phrase), it is under-specified and does not earn its place. It lacks structure or front-loading of useful information, making it unhelpful despite its brevity.

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

Completeness1/5

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

With no output schema, no annotations, and only two optional parameters, the description must explain the return value and usage context. It fails to do so, leaving the tool's full functionality ambiguous.

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

Parameters2/5

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

The input schema includes descriptions for 'class' and 'method' parameters, covering 67% of the schema. However, the tool description adds no additional meaning or context about how these parameters affect the tool's behavior, leaving them underdefined.

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

Purpose2/5

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

The description 'Node.js API: Buffer' vaguely suggests the tool relates to Node.js Buffer API, but it does not specify the action (e.g., get, search, list). This leaves the agent guessing the tool's core function.

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

Usage Guidelines1/5

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 sibling tools like 'get_api_for-assert' or 'search-nodejs-modules-api-documentation'. The agent has no context for selection.

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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