sources

List all data sources with license, attribution and availability. Takes no arguments. Shows which upstream sources InfraNode bundles and whether each is currently active. Read-only.

SERVERInfraNode SOURCEhttps://mcp.infranode.dev/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/dev-infranode-infranode/sources.md

WHAT IT DOES

What sources does on InfraNode

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

RISK

Why sources is rated Low

This tool retrieves and queries metadata about data sources—a classic read operation with zero side effects. No data is modified, deleted, executed, or financially committed. The read-only designation and passive information retrieval nature confirm the lowest-severity category.

From the tool's definition Tool description explicitly states "Read-only" and the function "List all data sources" indicates data retrieval with no side effects. Takes no arguments and only shows metadata about upstream sources, licenses, and availability status.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sources safely

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

sources Allowed

sources 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": {
    "sources": {}
  }
}

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

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

FAQ

Questions about sources

What does the sources tool do? +

List all data sources with license, attribution and availability. Takes no arguments. Shows which upstream sources InfraNode bundles and whether each is currently active. Read-only. It is categorised as a Read tool in the InfraNode MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on sources? +

Register the InfraNode MCP server in PolicyLayer and add a rule for sources: 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 InfraNode. Nothing to install.

What risk level is sources? +

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

Can I rate-limit sources? +

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

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

sources is provided by the InfraNode MCP server (https://mcp.infranode.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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