AI agents call resolve_contact to retrieve information from Wa Bridge without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a lookup/resolution of contact information, which is a read operation with no side effects. Severity is low as it only retrieves contact data. Confidence is slightly reduced because the description is truncated and may be incomplete.
From the tool's definition 'Resolve a single query to a contact' — resolves/looks up contact information by JID or other query
Attacks that exploit this kind of access
Resolve a single query to a contact. The query can be (a) a JID —. It is categorised as a Read tool in the Wa Bridge MCP Server, which means it retrieves data without modifying state.
Register the Wa Bridge MCP server in PolicyLayer and add a rule for resolve_contact: 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 Bridge. Nothing to install.
resolve_contact 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 resolve_contact 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 resolve_contact. 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.
resolve_contact is provided by the Wa Bridge MCP server (obirimensah05/whatsapp-bridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →