wa_get_messages
Get recent messages from a chat. Returns messages ordered by most recent first, with sender, content, type, and timestamp.
This record as markdown: /tools/delltrak-wamcp/wa-get-messages.md
What wa_get_messages does on WA MCP
AI agents call wa_get_messages to retrieve information from WA MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why wa_get_messages is rated Low
This tool retrieves historical message data from a chat without creating, modifying, deleting, or executing any operations. It is a pure read operation that returns existing data. While it accesses potentially sensitive personal communications, the absence of side effects or capability to modify state places it firmly in the Read category with low severity.
From the tool's definition Tool name 'wa_get_messages' and description 'Get recent messages from a chat. Returns messages ordered by most recent first, with sender, content, type, and timestamp.' indicate a retrieval operation with no data modification.
Attacks that exploit this kind of access
The rule that runs wa_get_messages safely
PolicyLayer is an MCP gateway: it sits between your AI agents and WA MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For wa_get_messages, this is the rule to start with:
wa_get_messages is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect WA MCP, apply this rule, and every wa_get_messages call is checked against it from then on.
Questions about wa_get_messages
Get recent messages from a chat. Returns messages ordered by most recent first, with sender, content, type, and timestamp. It is categorised as a Read tool in the WA MCP MCP Server, which means it retrieves data without modifying state.
Register the WA MCP server in PolicyLayer and add a rule for wa_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 WA MCP. Nothing to install.
wa_get_messages is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the wa_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.
Set action: deny in the PolicyLayer policy for wa_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.
wa_get_messages is provided by the WA MCP server (delltrak/wamcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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