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ghostiee-11

holoviz-viz-mcp

by ghostiee-11

generate_large_dataset

Create large synthetic datasets for big-data visualization demos. Patterns like clusters, spirals, and random noise are revealed only at scale.

Instructions

Generate a large synthetic dataset for big-data visualization demos.

Creates datasets with patterns that are only visible at scale — clusters, spirals, or random noise — perfect for datashader showcases.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNoDataset name (default: auto-generated)
n_pointsNoNumber of points to generate (default 100,000)
distributionNoPattern — 'clusters' (Gaussian blobs), 'spiral', 'grid', 'uniform'clusters

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided, so description must fully disclose behavior. It lacks details on performance, memory usage, whether the dataset is temporary or saved, and what the tool returns beyond generating data. The output schema exists but is not referenced.

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?

Two sentences, front-loaded with purpose, and every sentence provides useful information. No unnecessary words.

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

Completeness3/5

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

Sufficient for a simple generation tool with output schema, but missing explanation of return value or how the dataset is used downstream. Could be more complete given the sibling landscape.

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 100%, so the description adds marginal value by describing patterns (e.g., 'random noise' corresponding to 'uniform'). It does not introduce new parameter semantics beyond the schema.

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?

Description clearly states the verb 'Generate', the resource 'large synthetic dataset', and the purpose 'for big-data visualization demos'. It distinguishes from sibling tools like load_data and load_sample_data by emphasizing synthetic generation for scale.

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 mentions suitability for datashader showcases, implying use when large-scale patterns are needed. However, no explicit when-not or alternatives beyond that context, leaving room for clearer guidance.

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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