inviteMember

SERVERStable Baseline SOURCEhttps://api.stablebaseline.io/functions/v1/cloud-serve/mcp

Medium RISK CLASS

Category Write

Parameters 43 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-stablebaseline-sb/invitemember.md

WHAT IT DOES

What inviteMember does on Stable Baseline

AI agents use inviteMember to create or update resources in Stable Baseline, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Stable Baseline environment.

Parameter	Type	Required	Description
`email`	string	Yes	Email address. Lowercased and trimmed. Max 320 chars.
`message`	string	—	Optional personal message attached to the invitation email.
`organisation_id`	string	Yes	Organisation UUID. Must match the credential's organisation.
`organization_role`	string	Yes	Role to grant on accept. 'owner' is never assignable via MCP.

Parameters from the server's own tool schema.

RISK

Why inviteMember is rated Medium

The tool creates a new organisation membership invitation record and modifies organisational state (adds a pending member, impacts seat billing). This is reversible (invitations can expire or be revoked) and creates data rather than deleting or executing arbitrary code.

From the tool's definition Invite a person by email to the credential's organisation...Use when the user asks to invite a teammate, friend, colleague, or new user to their organisation, or to onboard someone. Returns invitation_id, expiry, and a seat-billing-impact summary.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs inviteMember safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Stable Baseline, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For inviteMember, this is the rule to start with:

inviteMember Rate-limited

inviteMember stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "inviteMember": {
      "limits": [
        {
          "counter": "invitemember_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Stable Baseline, apply this rule, and every inviteMember call is checked against it from then on.

FAQ

Questions about inviteMember

What does the inviteMember tool do? +

Invite a person by email to the credential's organisation. Auth: org id must match the credential AND credential must hold can_manage_members. Rate limit 10/h. Returns invitation_id, expiry, and a seat-billing-impact summary. Email-existence is opaque: the response shape never reveals whether the email is already a member, already invited, or new. Use when the user asks to invite a teammate, friend, colleague, or new user to their organisation, or to onboard someone. It is categorised as a Write tool in the Stable Baseline MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does inviteMember accept? +

inviteMember accepts 4 parameters: email, message, organisation_id, organization_role. Required: email, organisation_id, organization_role. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on inviteMember? +

Register the Stable Baseline MCP server in PolicyLayer and add a rule for inviteMember: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Stable Baseline. Nothing to install.

What risk level is inviteMember? +

inviteMember is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit inviteMember? +

Yes. Add a rate_limit block to the inviteMember rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block inviteMember completely? +

Set action: deny in the PolicyLayer policy for inviteMember. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides inviteMember? +

inviteMember is provided by the Stable Baseline MCP server (https://api.stablebaseline.io/functions/v1/cloud-serve/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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