frida_get_messages

Retrieve and drain pending messages from an injected script.

SERVERYa Frida SOURCE1shin-7/ya-frida-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/1shin-7-ya-frida-mcp/frida-get-messages.md

WHAT IT DOES

What frida_get_messages does on Ya Frida

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

RISK

Why frida_get_messages is rated Low

This tool queries state from an already-injected script (retrieving pending messages). It has no side effects beyond reading—it does not modify, delete, execute code, move money, or trigger external operations. The most severe impact would be information disclosure if sensitive data is exposed in the messages, but that is a read-level concern.

From the tool's definition Tool name includes 'get_messages' and description states 'Retrieve and drain pending messages from an injected script.' The verbs 'retrieve' and 'drain' indicate data retrieval without modification or destruction.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs frida_get_messages safely

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

frida_get_messages Allowed

frida_get_messages 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": {
    "frida_get_messages": {}
  }
}

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

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

FAQ

Questions about frida_get_messages

What does the frida_get_messages tool do? +

Retrieve and drain pending messages from an injected script. It is categorised as a Read tool in the Ya Frida MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on frida_get_messages? +

Register the Ya Frida MCP server in PolicyLayer and add a rule for frida_get_messages: 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 Ya Frida. Nothing to install.

What risk level is frida_get_messages? +

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

Can I rate-limit frida_get_messages? +

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

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

frida_get_messages is provided by the Ya Frida MCP server (1shin-7/ya-frida-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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