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christianclaudio

mcp-server-sigma

sigma_list_report_sources

Read-only

Retrieve the data sources used by a Sigma report with its report ID. Gain clarity on underlying data for analysis and troubleshooting.

Instructions

List data sources used by a report.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
report_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is known. The description adds minimal behavioral context beyond the annotation, only scoping the result to a specific report without detailing output structure or any filtering behavior.

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

Conciseness5/5

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

The description is a single, condensed sentence with no unnecessary words, achieving maximum clarity in minimum length.

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?

For a straightforward read-only list operation, the description covers the essential action and scope. The presence of an output schema and clear annotations lowers the burden, though usage guidance and parameter semantics are minimally addressed.

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 coverage is 0% and the description does not elaborate on the report_id parameter. While the parameter name is self-explanatory, the description does not add format or usage details, failing to compensate for the missing schema description.

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 uses the specific verb 'List' and identifies the resource as 'data sources used by a report', clearly distinguishing from sibling tools like sigma_list_workbook_sources. It is unambiguous and immediately scopes the operation.

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 such as sigma_list_workbook_sources or sigma_list_report_queries. The description simply states the action without context on use cases or exclusions.

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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