list_supported_formats

List supported input and output formats

SERVERContextForge MCP Gateway SOURCEjrmatherly/mcp-context-forge

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jrmatherly-mcp-context-forge/list-supported-formats.md

WHAT IT DOES

What list_supported_formats does on ContextForge MCP Gateway

AI agents call list_supported_formats to retrieve information from ContextForge MCP Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_supported_formats is rated Low

This tool retrieves or queries metadata about supported formats—a read-only operation with no side effects, no code execution, and no data modification. It is informational in nature and poses minimal risk even if an AI agent calls it unexpectedly. The low severity reflects the benign nature of format enumeration.

From the tool's definition Tool name 'list_supported_formats' and description 'List supported input and output formats' indicate a retrieval operation that queries available formats without modifying state or triggering external operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_supported_formats safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ContextForge MCP Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_supported_formats, this is the rule to start with:

list_supported_formats Allowed

list_supported_formats is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_supported_formats": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ContextForge MCP Gateway, apply this rule, and every list_supported_formats call is checked against it from then on.

FAQ

Questions about list_supported_formats

What does the list_supported_formats tool do? +

List supported input and output formats. It is categorised as a Read tool in the ContextForge MCP Gateway MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_supported_formats? +

Register the ContextForge MCP Gateway MCP server in PolicyLayer and add a rule for list_supported_formats: 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 ContextForge MCP Gateway. Nothing to install.

What risk level is list_supported_formats? +

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

Can I rate-limit list_supported_formats? +

Yes. Add a rate_limit block to the list_supported_formats 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 list_supported_formats completely? +

Set action: deny in the PolicyLayer policy for list_supported_formats. 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_supported_formats? +

list_supported_formats is provided by the ContextForge MCP Gateway MCP server (jrmatherly/mcp-context-forge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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