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paoloamato2

Keycloak MCP Server

by paoloamato2

update_client_role

Modify an existing client role in a Keycloak realm by specifying the realm, client UUID, role name, and updated role data.

Instructions

Update a client role.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
realmYesRealm name
client_uuidYesClient UUID
role_nameYesRole name
role_dataYesRole representation
Behavior2/5

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

The description lacks any behavioral details beyond the verb 'update'. With no annotations, it does not disclose expected side effects, permission requirements, or return behavior, leaving the agent to infer.

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?

At one sentence, it is concise but overly minimal. Every word earns its place, but it sacrifices clarity and completeness for brevity.

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?

Given the tool's complexity (4 required params, no output schema, no annotations), the description is insufficient. It omits return value, error conditions, and operational context a [Tier C] level.

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 coverage is 100% with descriptions for all parameters, so the schema does the heavy lifting. The description adds no extra meaning, and 'role_data' is a nested object with no details on its structure, limiting utility.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action (update) and resource (client role), distinguishing it from create/delete/get siblings. However, it does not specify which aspects of the role can be updated, leaving some ambiguity.

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 information is provided about when to use this tool versus alternatives like create_client_role or update_role_by_id. There are no prerequisites, exclusions, or context indicators.

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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