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bmordue

Iterator MCP Server

by bmordue

load_dataset

Load a JSON Lines dataset file for sequential record processing, navigation, and export.

Instructions

Load a dataset file for processing (supports JSON Lines format)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
file_pathYesPath to the dataset file (JSON lines format)
Behavior2/5

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

No annotations are present, so the description must disclose behavioral traits. It does not mention side effects, error handling, or what happens after loading (e.g., state changes). The simple verb 'load' is insufficient for full transparency.

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 with no filler words. It efficiently conveys the core action and format constraint.

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?

Given no output schema and no annotations, the description should cover return behavior, error cases, or differentiation from load_json_dataset. It lacks this context, making it incomplete for an agent to use confidently.

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%, with the param description already explaining the file path. The tool description adds 'supports JSON Lines format', which reinforces but does not significantly extend semantic meaning beyond the schema.

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 states the verb 'Load' and the resource 'dataset file', and specifies format support (JSON Lines). However, it does not differentiate from the sibling tool 'load_json_dataset', which likely has a similar purpose.

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 like load_json_dataset or other siblings. The description only states what it does, not when it is appropriate.

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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