removeWorkspaceMember
Remove a member from a workspace. Caller must be a workspace owner or admin. Refuses to remove the last remaining workspace owner.
This record as markdown: /tools/io-stablebaseline-sb/removeworkspacemember.md
What removeWorkspaceMember does on Stable Baseline
AI agents call removeWorkspaceMember to permanently remove resources in Stable Baseline, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
user_id | string | Yes | |
workspace_id | string | Yes |
Parameters from the server's own tool schema.
Why removeWorkspaceMember is rated Critical
Removing a workspace member revokes their access and associated permissions permanently. This is an irreversible destructive action with high blast radius — an AI agent misusing this could lock out legitimate users. The safeguard about not removing the last owner slightly limits worst-case, but the action itself is still destructive and non-reversible.
From the tool's definition 'Remove a member from a workspace' — removing a member is an irreversible access revocation action. The description does not mention any undo or restore capability.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
The rule that runs removeWorkspaceMember 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 removeWorkspaceMember, this is the rule to start with:
removeWorkspaceMember is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Stable Baseline, apply this rule, and every removeWorkspaceMember call is checked against it from then on.
Questions about removeWorkspaceMember
Remove a member from a workspace. Caller must be a workspace owner or admin. Refuses to remove the last remaining workspace owner. It is categorised as a Destructive tool in the Stable Baseline MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
removeWorkspaceMember accepts 2 parameters: user_id, workspace_id. Required: user_id, workspace_id. The full parameter table on this page comes from the server's own tool schema.
Register the Stable Baseline MCP server in PolicyLayer and add a rule for removeWorkspaceMember: 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.
removeWorkspaceMember is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the removeWorkspaceMember 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.
Set action: deny in the PolicyLayer policy for removeWorkspaceMember. 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.
removeWorkspaceMember 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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