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bmordue

Iterator MCP Server

by bmordue

get_next_record

Get the next record from a dataset for sequential processing, enabling step-by-step analysis.

Instructions

Get the next record from the dataset for processing

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations are provided, so the description must disclose behavioral traits. It reveals 'get' indicating a read operation, but fails to clarify whether calling this tool is destructive (e.g., consumes the record) or if it can be repeated. The stateful nature is implied but not explained.

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

Conciseness4/5

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

Single sentence, front-loaded with purpose, no redundant words. Could be improved by adding a brief usage note, but overall efficient.

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?

Incomplete for the task complexity. Lacks prerequisites (e.g., dataset must be loaded), behavior details (e.g., iterative nature, what happens at end), and interaction with sibling tools. Sibling names hint at context but description does not connect them.

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?

No parameters (0 params, 100% schema coverage). The description adds no parameter details, which is acceptable per baseline for high coverage. However, it misses implicit requirements like the need for a loaded dataset, which would be expected from the name.

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 clearly states the action ('Get') and the resource ('next record from the dataset for processing'). It implies sequential access, loosely distinguishing it from siblings like 'jump_to_record' or 'reset_to_start', but does not explicitly differentiate.

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 on when to use this tool versus alternatives. Lacks context such as requiring a prior dataset load or that it advances an internal pointer. No exclusions or alternatives mentioned.

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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