rss_fetch

A read tool on the Container- MCP server.

SERVERContainer-MCP SOURCE54rt1n/container-mcp

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/54rt1n-container-mcp/rss-fetch.md

WHAT IT DOES

What rss_fetch does on Container-MCP

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

RISK

Why rss_fetch is rated Low

RSS feed fetching is a non-destructive data retrieval operation. It queries external RSS sources and returns feed content. No side effects, no data modification, no code execution. The low severity reflects minimal blast radius—even if an AI agent misuses this tool, it can only retrieve publicly available feed data.

From the tool's definition Tool name 'rss_fetch' indicates retrieval of RSS feed content. Description is empty, but the naming convention and context (sibling tools include fs_read, kb_read, fs_list, health_check—all Read operations) strongly suggest this retrieves remote data without…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs rss_fetch safely

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

rss_fetch Allowed

rss_fetch 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": {
    "rss_fetch": {}
  }
}

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

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

FAQ

Questions about rss_fetch

What does the rss_fetch tool do? +

rss_fetch is a read tool on the Container MCP server. It is categorised as a Read tool in the Container-MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on rss_fetch? +

Register the Container MCP server in PolicyLayer and add a rule for rss_fetch: 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 Container-MCP. Nothing to install.

What risk level is rss_fetch? +

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

Can I rate-limit rss_fetch? +

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

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

rss_fetch is provided by the Container MCP server (54rt1n/container-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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