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Arize-ai

@arizeai/phoenix-mcp

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by Arize-ai

add-dataset-examples

Add labeled examples to an existing dataset to augment it with edge cases and improve coverage.

Instructions

Add examples to an existing dataset.

This tool adds one or more examples to an existing dataset. Each example includes an input, output, and metadata. The metadata will automatically include information indicating that these examples were synthetically generated via MCP. When calling this tool, check existing examples using the "get-dataset-examples" tool to ensure that you are not adding duplicate examples and following existing patterns for how data should be structured.

Example usage: Look at the analyze "my-dataset" and augment them with new examples to cover relevant edge cases

Expected return: Confirmation of successful addition of examples to the dataset.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dataset_nameYes
examplesYes
Behavior3/5

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

With no annotations, the description partially discloses behavioral traits, such as automatically adding metadata indicating synthetic generation via MCP, and returning a confirmation. However, it does not mention side effects like appending vs. replacing, or limits on example count.

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?

The description is well-structured in three paragraphs, front-loads the purpose, and includes usage guidance and an example. It is concise but could be slightly trimmed without losing information.

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

Completeness4/5

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

Given no output schema and low schema coverage, the description covers the operation, example structure, automatic metadata, and expected return. It references a sibling tool for pre-checks. Missing details like error handling or dataset existence validation, but sufficiently complete for its complexity.

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 0%, so the description must compensate. It mentions that examples contain input, output, and metadata but does not clarify the structure beyond the schema names. It lacks details on formats, constraints, or optional fields, adding minimal value over 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?

The description clearly states it adds examples to an existing dataset, specifying each example includes input, output, and metadata. It also references a sibling tool (get-dataset-examples) for checking existing examples, distinguishing the tool's purpose.

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?

The description instructs to use get-dataset-examples to check existing examples and avoid duplicates, and to follow existing patterns. This provides clear guidance on when and how to use the tool, though it does not explicitly state when not to use it.

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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