sf_create_lwc
Creates and deploys a new Lightning Web Component (LWC) to the Salesforce org. Provide the HTML template, JavaScript controller, optional CSS, and component metadata. The component is packaged into a deployment zip and deployed via the Metadata API. Specify targets to make the component available...
This record as markdown: /tools/io-github-semwalajay83-sem-salesforce-metadata-mcp/sf-create-lwc.md
What sf_create_lwc does on Salesforce Metadata Mcp
AI agents use sf_create_lwc 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_lwc is rated Medium
This tool creates new components and deploys them to a live Salesforce organization, which is a reversible modification of the system's metadata and configuration. While it could theoretically be Execute (since it involves code deployment), the primary action is creating and storing a new artifact (Write).
From the tool's definition The tool 'Creates and deploys a new Lightning Web Component (LWC) to the Salesforce org' and 'is packaged into a deployment zip and deployed via the Metadata API.' This is a creation and deployment action that modifies the Salesforce org configuration.
Attacks that exploit this kind of access
The rule that runs sf_create_lwc 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_lwc, this is the rule to start with:
sf_create_lwc 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_lwc call is checked against it from then on.
Questions about sf_create_lwc
Creates and deploys a new Lightning Web Component (LWC) to the Salesforce org. Provide the HTML template, JavaScript controller, optional CSS, and component metadata. The component is packaged into a deployment zip and deployed via the Metadata API. Specify targets to make the component available in Lightning App Builder (AppPage, RecordPage, HomePage), Flow Screen, Utility Bar, or Experience Cloud. Use isExposed:true to make it drag-and-drop in App Builder. 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_lwc: 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_lwc 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_lwc 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_lwc. 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_lwc 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.
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