Assign a permission set license to one or more org users. To specify an alias for the --target-org or --on-behalf-of flags, use the CLI username alias, such as the one you set with the
AI agents use assign_permission_set_license to create or update resources in Salesforce MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Salesforce MCP Server environment.
This tool modifies user permissions and access controls within Salesforce, making it a Write operation. While permission changes are important governance actions, they are reversible (licenses can be unassigned), so it does not rise to Destructive.
From the tool's definition Tool description states 'Assign a permission set license to one or more org users', which modifies user access permissions in a Salesforce org. The verb 'assign' indicates a modification action that creates or updates permission set license assignments.
Documented attack patterns abuse exactly the kind of access assign_permission_set_license gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Salesforce MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for assign_permission_set_license:
{
"version": "1",
"default": "deny",
"tools": {
"assign_permission_set_license": {
"limits": [
{
"counter": "assign_permission_set_license_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}assign_permission_set_license 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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Assign a permission set license to one or more org users. To specify an alias for the --target-org or --on-behalf-of flags, use the CLI username alias, such as the one you set with the. It is categorised as a Write tool in the Salesforce MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Salesforce MCP Server MCP server in PolicyLayer and add a rule for assign_permission_set_license: 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 Salesforce MCP Server. Nothing to install.
assign_permission_set_license 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 assign_permission_set_license 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 assign_permission_set_license. 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.
assign_permission_set_license is provided by the Salesforce MCP Server MCP server (advancedcommunities/salesforce-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Salesforce MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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41 Salesforce MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.