Export traffic log as HAR (HTTP Archive) format
AI agents call proxy_export_har to retrieve information from Web Proxy MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and exports existing traffic log data in HAR format. It is a read/export operation with no side effects. However, severity is medium because HAR files can contain sensitive data including cookies, session tokens, request/response bodies, and authentication headers captured from proxied HTTP traffic, making misuse potentially impactful.
From the tool's definition Export traffic log as HAR (HTTP Archive) format
Attacks that exploit this kind of access
Export traffic log as HAR (HTTP Archive) format. It is categorised as a Read tool in the Web Proxy MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Web Proxy MCP Server MCP server in PolicyLayer and add a rule for proxy_export_har: 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 Web Proxy MCP Server. Nothing to install.
proxy_export_har 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 proxy_export_har 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 proxy_export_har. 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.
proxy_export_har is provided by the Web Proxy MCP Server MCP server (mako10k/mcp-web-proxy). 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 →