MCP Tool Reference Low Risk

list_schemas

Lists all schemas in a specified Databricks catalog

Part of the Databricks MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

Read

WHEN AI AGENTS USE THIS TOOL

AI agents call list_schemas to retrieve information from Databricks without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions — but you may still want rate limits to control API costs.

WHY ENFORCE A POLICY ON LIST_SCHEMAS

Even though list_schemas only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

databricks.yaml
tools:
  list_schemas:
    rules:
      - action: allow

See the full Databricks policy for all 6 tools.

DETAILS

Tool Name

list_schemas

Category

Read

Risk Level

Low

MORE DATABRICKS TOOLS

SIMILAR READ TOOLS ON OTHER SERVERS

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the list_schemas tool do?

Lists all schemas in a specified Databricks catalog. It is categorised as a Read tool in the Databricks MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_schemas?

Add a rule in your Intercept YAML policy under the tools section for list_schemas. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Databricks MCP server.

What risk level is list_schemas?

list_schemas is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_schemas?

Yes. Add a rate_limit block to the list_schemas rule in your Intercept 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.

How do I block list_schemas completely?

Set action: deny in the Intercept policy for list_schemas. 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.

What MCP server provides list_schemas?

list_schemas is provided by the Databricks MCP server (). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON DATABRICKS

Open source. One binary. Zero dependencies.