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mapper_generate_transforms

Generates transformation functions for a project directory, automating data mapping and conversion.

Instructions

Generate transformation functions

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
api_keyNo
directoryYesProject directory
Behavior1/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure, and it delivers none. It does not state whether the operation is safe or mutating, whether a mapper layer must already exist, why api_key is needed, or what artifacts are produced.

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, this is under-specification rather than conciseness. The three-word phrase contributes almost no information and does not front-load any useful guidance.

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?

For a tool with two parameters, no output schema, no annotations, and a large sibling set, the description is inadequate. An agent cannot determine the directory's role, the api_key's purpose, expected outputs, or which sibling to choose.

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?

Schema description coverage is only 50%, with api_key left entirely undocumented in both the schema and the description. The description adds no meaning for either parameter and does not compensate for the coverage gap.

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 'Generate transformation functions' is essentially a restatement of the tool name (mapper_generate_transforms), substituting 'transformation functions' for 'transforms'. It gives no indication of what kind of transformations are involved, what input they operate on, or how this differs from siblings like etl_generate_transforms, json_transform_pipeline, or mapper_create_layer.

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. Among the large sibling set there are closely related tools (mapper_create_layer, mapper_add_validation, etl_generate_transforms), and the description offers no conditions, prerequisites, or exclusions to distinguish them.

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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