Low Risk

get_message_context

Get recent messages around a specific message ID within its chat (context accuracy depends on fetch limit).

How to control get_message_context ↓

What get_message_context does on Mcp Whatsapp Web

AI agents call get_message_context to retrieve information from Mcp Whatsapp Web without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why get_message_context needs a policy

The tool retrieves existing message data (context window around a message) without creating, modifying, deleting, or executing operations. This is a Read operation. Severity is medium rather than low because WhatsApp conversations may contain sensitive personal, financial, or business information; unauthorized access to message context could expose such data.

From the tool's definition Tool description states 'Get recent messages around a specific message ID within its chat' — this is a retrieval operation with no modification or side effects. It reads message data from WhatsApp Web.

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

How to control get_message_context

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_message_context": {}
  }
}

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

  1. Create a free account and register Mcp Whatsapp Web — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about get_message_context

What does the get_message_context tool do? +

Get recent messages around a specific message ID within its chat (context accuracy depends on fetch limit). It is categorised as a Read tool in the Mcp Whatsapp Web MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_message_context? +

Register the Mcp Whatsapp Web MCP server in PolicyLayer and add a rule for get_message_context: 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 Mcp Whatsapp Web. Nothing to install.

What risk level is get_message_context? +

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

Can I rate-limit get_message_context? +

Yes. Add a rate_limit block to the get_message_context 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_message_context completely? +

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

get_message_context is provided by the Mcp Whatsapp Web MCP server (mario-andreschak/mcp-whatsapp-web). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Whatsapp Web tool call.

Start from Mcp Whatsapp Web, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

16 Mcp Whatsapp Web tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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