Describe SObject metadata with 1-hour caching
AI agents call describe-sobject to retrieve information from Salesforce 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 retrieves SObject metadata (schema information) from Salesforce without side effects. It is a read-only operation that returns descriptive information about object structures. Caching further confirms this is a passive retrieval operation.
From the tool's definition Tool name 'describe-sobject' and description 'Describe SObject metadata with 1-hour caching' indicates retrieval of metadata information about Salesforce SObject definitions. No modification, deletion, or code execution is performed.
Documented attack patterns abuse exactly the kind of access describe-sobject 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 describe-sobject:
{
"version": "1",
"default": "deny",
"tools": {
"describe-sobject": {}
}
}describe-sobject is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Describe SObject metadata with 1-hour caching. It is categorised as a Read tool in the Salesforce MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Salesforce MCP Server MCP server in PolicyLayer and add a rule for describe-sobject: 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.
describe-sobject 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 describe-sobject 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 describe-sobject. 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.
describe-sobject is provided by the Salesforce MCP Server MCP server (jaworjar95/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.
Free to start. No card required.
17 Salesforce MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.