Skip to main content
Glama
christianclaudio

mcp-server-sigma

Datasets Test Connection

datasets_test_connection

Verify a Sigma data connection works by testing connectivity using its connection_id. Confirms reachability before running datasets or workflows.

Instructions

Test connectivity for a connection.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
connection_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv2.0.4

TDQS

C2.4/5.0
Behavior2/5

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

Annotations already declare openWorldHint=true and readOnlyHint=false, so the external, non-pure-read nature of the call is structured-visible. The description adds nothing beyond that: it does not say what a failed test looks like, whether the probe has side effects on the connection, or what auth/rate-limit considerations apply.

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

Conciseness3/5

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

One short sentence with no filler and the purpose is front-loaded. It is efficient but under-specified rather than genuinely concise, so it only reaches the minimum viable level.

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?

An output schema exists, so return values need not be explained, but the description still omits prerequisites, parameter sourcing, and how this tool relates to the sync/get connection siblings. For a tool with a hidden 0%-documented parameter, more context is needed.

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 single parameter (connection_id) has no description in either the schema or the tool description. The description does not say how to obtain a valid connection_id (e.g., from datasets_list_connections) or what format it takes, so it fails to compensate for the coverage gap.

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 sentence names a verb ("Test") and a resource ("connectivity for a connection"), which is more than a restatement of the name. However, it does not distinguish this from siblings like datasets_sync_connection or datasets_get_connection, nor clarify what "test" means (reachability, credentials, permissions).

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?

There is no when-to-use guidance, no stated prerequisites, and no mention of alternatives. An agent calling this against a connection has to infer whether it should be run before datasets_sync_connection or instead of datasets_get_connection.

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

Deploy Server

Other Tools