AI agents call list_jobs to retrieve information from Databricks 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 information about existing jobs without creating, modifying, executing, or deleting them. It has no side effects and falls clearly into the Read category. Severity is low because listing jobs reveals job metadata that could be sensitive but does not directly compromise data or systems.
From the tool's definition Tool name is 'list_jobs' and description states 'List all Databricks jobs' — a retrieval operation with no modification or execution of jobs.
Documented attack patterns abuse exactly the kind of access list_jobs gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Databricks MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_jobs:
{
"version": "1",
"default": "deny",
"tools": {
"list_jobs": {}
}
}list_jobs is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all Databricks jobs. It is categorised as a Read tool in the Databricks MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Databricks MCP Server MCP server in PolicyLayer and add a rule for list_jobs: 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 Databricks MCP Server. Nothing to install.
list_jobs 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_jobs 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_jobs. 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_jobs is provided by the Databricks MCP Server MCP server (jordineil/mcp-databricks-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Databricks 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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4 Databricks MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.