Display details about the metadata types that are enabled for your org. The information includes Apex classes and triggers, custom objects, custom fields on standard objects, tab sets that define an app, and many other metadata types. Use this information to identify the syntax needed for a <name...
AI agents call list_metadata_types to retrieve information from Salesforce CLI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns metadata information about enabled metadata types in a Salesforce org. While it requires elevated permissions (Modify All Data or Modify Metadata Through Metadata API Functions), the action itself is purely informational with no side effects. It falls squarely into the Read category as a data retrieval operation.
From the tool's definition Tool description explicitly states it 'Display[s] details about the metadata types' and is used to 'identify the syntax needed' — these are read-only information retrieval operations. No creation, modification, deletion, or execution of code is performed.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Display details about the metadata types that are enabled for your org. The information includes Apex classes and triggers, custom objects, custom fields on standard objects, tab sets that define an app, and many other metadata types. Use this information to identify the syntax needed for a <name> element in a manifest file (package.xml). The username that you use to connect to the org must have the Modify All Data or Modify Metadata Through Metadata API Functions permission. It is categorised as a Read tool in the Salesforce CLI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Salesforce CLI MCP Server MCP server in PolicyLayer and add a rule for list_metadata_types: 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 CLI MCP Server. Nothing to install.
list_metadata_types is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_metadata_types 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 list_metadata_types. 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.
list_metadata_types is provided by the Salesforce CLI MCP Server MCP server (perrynet/salesforce-cli-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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