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paoloamato2

Keycloak MCP Server

by paoloamato2

get_role_by_id_composites

Retrieve the composite roles associated with a specific role by its ID in a Keycloak realm.

Instructions

Get composites of a role by ID.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
realmYesRealm name
role_idYesRole ID
Behavior2/5

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

No annotations provided; description does not disclose behavior beyond 'Get composites'. Missing details such as whether it is read-only, any permissions required, or the structure of the response.

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?

Extremely short (5 words), but lacks essential information. Conciseness is not effective when it sacrifices clarity and completeness.

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?

Without an output schema or additional description, the agent cannot infer the return type or structure. The tool is moderately complex (two required params), and the description is insufficient for an agent to use it correctly.

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?

Input schema has 100% coverage with basic descriptions for realm and role_id. The description adds no further meaning or constraints beyond what the schema already provides.

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?

Description states 'Get composites of a role by ID', which indicates the action and resource. However, it does not specify what type of composites (client, realm, or all), making it ambiguous compared to siblings like get_role_by_id_client_composites and get_role_by_id_realm_composites.

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 on when to use this tool versus alternatives like get_role_by_id_client_composites or get_role_by_id_realm_composites. Does not explain the scope or limitations.

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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