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@beyondidentity/mcp

@beyondidentity/mcp

Official
by gobeyondidentity
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TypeScript
Remote

add_group_users

Adds up to 1,000 users to an existing group using their user IDs; the operation is all-or-nothing and fails if any ID is invalid.

Instructions

Add 1–1000 users to a group. Provide an array of user IDs. Requires the group to exist (use list_groups or create_group first). All-or-nothing: if any user ID is invalid, the entire operation fails.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "group_id": "<group_id>"
    },
    "name": "add_group_users"
  }
}

Input Schema

NameRequiredDescriptionDefault
idNoID of the group.
group_idYesA unique identifier for a group.
user_idsNoIDs of the users to be added to the group.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.0

TDQS

A4.6/5.0
Behavior4/5

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

No annotations are provided, so the description carries the burden and does well by disclosing the all-or-nothing failure semantics, which is a non-obvious transactional behavior. It also states the cardinality limit (1–1000), though it omits permission/auth requirements and return 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?

Three dense sentences, front-loaded with the action and scope, then constraints, then transactional behavior. No filler.

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 mutation tool with no annotations and no output schema, the description covers prerequisites, limits, and failure semantics well enough to call it correctly. Missing auth/permission context, but that is a minor gap given the otherwise strong disclosure.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the schema already documents all three parameters. The description adds meaning beyond the schema by specifying the array size bounds and the all-or-nothing behavior tied to user ID validity, which the schema does not convey.

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?

States a specific verb and resource ('Add 1–1000 users to a group') with a clear scope limit. Distinguishes itself from siblings like list_group_users or delete_group_users by naming the mutating operation precisely.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly says when to use it ('Requires the group to exist') and routes the agent to prerequisites ('use list_groups or create_group first'). This directly resolves the ambiguity an agent would face among the many group-related siblings.

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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