Unshare a blueprint from users. Args: blueprint_id: ID of the blueprint to unshare user_ids: List of user IDs to remove access from Returns: Unshare operation result
AI agents use unshare_blueprint_with_users to create or update resources in Ludus FastMCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ludus FastMCP environment.
This tool revokes access permissions for specific users on a blueprint. It modifies access control settings (a write operation), but does not delete the blueprint itself. The action is reversible since access can be re-granted. Misuse could disrupt collaborative workflows by removing user access to shared blueprints.
From the tool's definition Unshare a blueprint from users... remove access from
Documented attack patterns abuse exactly the kind of access unshare_blueprint_with_users gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ludus FastMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for unshare_blueprint_with_users:
{
"version": "1",
"default": "deny",
"tools": {
"unshare_blueprint_with_users": {
"limits": [
{
"counter": "unshare_blueprint_with_users_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}unshare_blueprint_with_users 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.
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Unshare a blueprint from users. Args: blueprint_id: ID of the blueprint to unshare user_ids: List of user IDs to remove access from Returns: Unshare operation result. It is categorised as a Write tool in the Ludus FastMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for unshare_blueprint_with_users: 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 Ludus FastMCP. Nothing to install.
unshare_blueprint_with_users is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the unshare_blueprint_with_users 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 unshare_blueprint_with_users. 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.
unshare_blueprint_with_users is provided by the Ludus Fast MCP server (tjnull/ludus-fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 201 Ludus FastMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.