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get_submodel_value

Retrieves the raw value of a Submodel by its unique ID. Accepts optional server host and Base64 encoding settings.

Instructions

Retrieves the raw value of a specific Submodel.

Corresponds to: GET /submodels/{submodel_id}/$value

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
hostNoBase URL of the AAS server. Defaults to configured host.http://localhost:8081
encodeNoWhether to Base64-encode the Submodel ID. Defaults to True.
submodel_idYesThe unique identifier of the Submodel.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

No annotations are present, so the description carries the burden. It indicates a read operation through 'retrieves' and the GET endpoint, but provides no additional behavioral details such as error behavior or side effects. It is minimally sufficient.

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 two short sentences, with the main action first and the endpoint as clarification. No wasted words.

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?

The description clearly identifies the tool's purpose and the technical endpoint. The output schema covers return values, and the param schema covers inputs. However, it does not explicitly differentiate from sibling tools like get_submodel, so it's slightly incomplete for selection.

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?

The schema already contains full descriptions for all three parameters (100% coverage), and the description adds no parameter information beyond that. Baseline of 3 applies.

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 verb 'retrieves' and the resource 'raw value of a specific Submodel', and the endpoint reference distinguishes it from the sibling get_submodel which likely returns full model.

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 about when to choose this tool over get_submodel or get_submodel_element_value. The description does not include any usage context 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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