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Rezlazy

yandex-metrika-mcp

by Rezlazy

mgmt_segment_get

Fetch detailed information about a Yandex Metrika segment by providing its ID and the counter ID.

Instructions

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
prettyNoPretty-print response (1)
counterIdYesCounter ID
segmentIdYesSegment ID

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.2

TDQS

D1.9/5.0
Behavior1/5

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

No annotations are provided, so the description must carry the full burden of behavioral disclosure. It only says 'Get', implying a read operation, but provides no information about authentication requirements, response format, error handling, rate limits, or side effects. The description is silent on all behavioral aspects.

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?

The description is extremely short, but this is under-specification rather than conciseness. It consists of a URL and a single phrase that restates the tool name. There is no structured information, no front-loading of critical constraints, and no effort to be helpful. The URL is not informative for an AI agent.

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 simple get-by-ID tool, one might argue minimal description is acceptable, but the lack of output schema, no behavioral notes, and no usage context leaves the agent with insufficient information. It doesn't explain what a 'segment' is in this context, what the response looks like, or any error conditions. This is incomplete even for a straightforward retrieval operation.

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 description coverage is 100%, so the baseline is 3. The description adds nothing beyond the schema – it does not clarify the relationship between counterId and segmentId or provide any additional context about parameter usage. The schema descriptions ('Counter ID', 'Segment ID') are self-explanatory, so the description provides no added value.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose3/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states 'Get segment by ID' which is a specific verb and resource, but it does not distinguish this tool from siblings beyond that. It essentially restates the tool name with minor clarification (by ID), and the URL adds no functional value for an agent.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

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. There is no mention of prerequisites, typical scenarios, or exclusions. The description gives no context about when to call mgmt_segment_get versus mgmt_segment_list or other segment operations.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.