format-json · Underground Cultural District MCP Server MCP

WHAT IT DOES

What format-json does on Underground Cultural District MCP Server

AI agents call format-json to retrieve information from Underground Cultural District MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why format-json needs a policy

This tool only transforms or validates JSON data in-memory with no side effects, no data storage, no external calls, and no destructive operations. It is a pure formatting/validation utility.

From the tool's definition Pretty-print, minify, or validate JSON

Attacks that exploit this kind of access

Questions about format-json

What does the format-json tool do? +

Pretty-print, minify, or validate JSON. It is categorised as a Read tool in the Underground Cultural District MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on format-json? +

Register the Underground Cultural District MCP Server MCP server in PolicyLayer and add a rule for format-json: 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 Underground Cultural District MCP Server. Nothing to install.

What risk level is format-json? +

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

Can I rate-limit format-json? +

Yes. Add a rate_limit block to the format-json 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.

How do I block format-json completely? +

Set action: deny in the PolicyLayer policy for format-json. 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 format-json? +

format-json is provided by the Underground Cultural District MCP Server MCP server (lisamaraventano-spine/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.