get_prompt_file_content

THE RISK

Low Risk

Why get_prompt_file_content needs a policy

This tool only queries and returns existing prompt data. It performs no write, deletion, execution, or financial operations. The blast radius of misuse is minimal: an agent could only access stored prompt templates, not alter or delete them. The 'Retrieve' verb and lack of state-changing capability clearly place this in the Read category with low severity.

From the tool's definition Tool description states it 'Retrieves the raw JSON definition' of a prompt—a pure read operation with no modification or side effects.

Documented attack patterns abuse exactly the kind of access get_prompt_file_content gives an agent:

POLICY

How to control get_prompt_file_content

PolicyLayer is an MCP gateway — it sits between your AI agents and Prompt Registry MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_prompt_file_content:

policy.json

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

get_prompt_file_content is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Prompt Registry MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Prompt Registry MCP tools

Destructive delete_prompt Deletes a prompt from the project-specific directory. If a user global default with the sa Write load_default_prompts Loads all default prompts from the default_prompts_data directory into the active prompt d Write add_prompt Adds a new prompt to the project-specific prompt directory. Write refine_and_add_prompt Optimizes a prompt using Claude Prompt Optimizer techniques, then adds the refined version Write update_prompt Updates an existing prompt. Updates are always written to the project-specific directory, Read filter_prompts_by_tags Lists active prompts (project-specific or user global defaults) that match all specified t

All 7 Prompt Registry MCP tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_prompt_file_content

What does the get_prompt_file_content tool do? +

Retrieves the raw JSON definition of the active prompt (project-specific or user global default). It is categorised as a Read tool in the Prompt Registry MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_prompt_file_content? +

Register the Prompt Registry MCP server in PolicyLayer and add a rule for get_prompt_file_content: 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 Prompt Registry MCP. Nothing to install.

What risk level is get_prompt_file_content? +

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

Can I rate-limit get_prompt_file_content? +

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

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

get_prompt_file_content is provided by the Prompt Registry MCP server (stevengonsalvez/promptregistry-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Prompt Registry MCP tool call.

Start from Prompt Registry MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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