Pretty-print JSON with configurable indentation.
AI agents call format_json to retrieve information from MCP Server Fly without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reformats/displays JSON data for readability. It performs no side effects, no data modification, no external calls, and no destructive operations. It is a pure text transformation (read/process) utility.
From the tool's definition Pretty-print JSON with configurable indentation
Attacks that exploit this kind of access
Pretty-print JSON with configurable indentation. It is categorised as a Read tool in the MCP Server Fly MCP Server, which means it retrieves data without modifying state.
Register the MCP Server Fly 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 MCP Server Fly. Nothing to install.
format_json 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 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.
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.
format_json is provided by the MCP Server Fly MCP server (kushalkachari993-dev/mcp-server-fly). 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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