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Arize-ai

@arizeai/phoenix-mcp

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by Arize-ai

get-dataset-experiments

Retrieve experiments conducted on a dataset using its id or name. Specify an optional limit to control result count.

Instructions

List experiments run on a dataset.

Example usage: Show me all experiments run on dataset RGF0YXNldDox

Expected return: Array of experiment objects with metadata.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dataset_idNo
dataset_nameNo
limitNo
Behavior2/5

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

No annotations exist, so the description carries the full burden. It mentions it lists experiments and returns an array, but lacks disclosure of side effects, authentication, rate limits, or data scope.

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 concise with an example and expected return, but lacks structure (e.g., no parameter descriptions). It is not verbose.

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, the description vaguely mentions 'array of experiment objects with metadata', which is insufficient. It also does not address the sibling overlap.

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%, and the description provides no explanation of parameters (dataset_id, dataset_name, limit). The example uses a base64 ID but does not clarify semantics.

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 it lists experiments for a dataset, but does not differentiate from the sibling tool 'list-experiments-for-dataset', leading to potential confusion.

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 vs alternatives (e.g., list-experiments-for-dataset), nor any prerequisites or exclusions. Only a generic example is provided.

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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