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dnic-dev

bw-modeling-mcp

by dnic-dev

bw_get_datasource

Retrieve the complete structure of a SAP BW DataSource, including metadata, field definitions, and adapter configuration, in text or raw format.

Instructions

Read the full structure of a DataSource (RSDS) — metadata, all fields with types and properties, and adapter configuration.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
datasource_nameYesTechnical name of the DataSource (e.g. "DS_NAME").
source_systemYesLogical source system name (e.g. "LSYS_NAME").
formatNoOutput format. "text" (default): compact human-readable summary. "raw": raw XML from BW.
Behavior3/5

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

With no annotations, the description implies a read-only operation without side effects. However, it does not disclose error handling, return behavior for invalid inputs, or performance implications. The description is adequate for a standard 'get' operation but lacks depth.

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, well-structured sentence that front-loads the key purpose. Every part is meaningful, no redundancy, and it efficiently conveys the tool's function.

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 read tool with 3 parameters and no output schema, the description adequately outlines what is returned (metadata, fields, adapter config). It could mention output format details, but the schema covers the format parameter. Overall complete given the tool's simplicity.

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 schema already explains all parameters. The description adds no additional semantics beyond what the schema provides. Baseline of 3 is appropriate.

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 the action (Read) and the resource (DataSource/RSDS), specifying it returns the full structure including metadata, fields, and adapter configuration. This distinguishes it from sibling tools like bw_list_datasources (listing) and bw_get_infosource (different object).

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?

The description lacks any guidance on when to use this tool versus alternatives such as bw_get_infosource or bw_get_adso. No prerequisites, exclusions, or context are provided, leaving the agent to infer usage solely from the tool name and description.

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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