sf_create_custom_label
Creates or updates a Salesforce Custom Label. Custom Labels are text values accessible in Apex, Visualforce, LWC, and Flows, with support for translation. Use for internationalizable text strings, error messages, or UI labels.
This record as markdown: /tools/io-github-semwalajay83-sem-salesforce-metadata-mcp/sf-create-custom-label.md
What sf_create_custom_label does on Salesforce Metadata Mcp
AI agents use sf_create_custom_label to create or update resources in Salesforce Metadata Mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Salesforce Metadata Mcp environment.
Why sf_create_custom_label is rated Medium
The tool modifies metadata (custom labels) within Salesforce, which is a Write action. While reversible (labels can be deleted or updated), custom labels can affect application behavior and UI presentation across Apex, Visualforce, LWC, and Flows. An agent with unchecked access could create misleading labels, override existing ones, or clutter the metadata.
From the tool's definition Tool name explicitly states 'create' and description says 'Creates or updates a Salesforce Custom Label' — these are reversible write operations.
Attacks that exploit this kind of access
The rule that runs sf_create_custom_label safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Salesforce Metadata Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sf_create_custom_label, this is the rule to start with:
sf_create_custom_label 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Salesforce Metadata Mcp, apply this rule, and every sf_create_custom_label call is checked against it from then on.
Questions about sf_create_custom_label
Creates or updates a Salesforce Custom Label. Custom Labels are text values accessible in Apex, Visualforce, LWC, and Flows, with support for translation. Use for internationalizable text strings, error messages, or UI labels. It is categorised as a Write tool in the Salesforce Metadata Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Salesforce Metadata MCP server in PolicyLayer and add a rule for sf_create_custom_label: 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 Metadata Mcp. Nothing to install.
sf_create_custom_label 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 sf_create_custom_label 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 sf_create_custom_label. 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.
sf_create_custom_label is provided by the Salesforce Metadata MCP server (salesforce-metadata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Salesforce Metadata, and thousands of servers like it.
This server
Across the catalogue