List all available browser targets (pages, service workers, etc.)
AI agents call list_targets to retrieve information from Simple Console MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only enumerates existing browser targets/pages and returns information about them. It has no side effects, does not modify state, and does not execute code or trigger external operations. It is purely informational and fits the Read category (retrieves or queries data; no side effects).
From the tool's definition Tool name is 'list_targets' and description states 'List all available browser targets (pages, service workers, etc.)' — this is a query operation that retrieves metadata about open browser contexts without modifying or executing anything.
Attacks that exploit this kind of access
List all available browser targets (pages, service workers, etc.). It is categorised as a Read tool in the Simple Console MCP MCP Server, which means it retrieves data without modifying state.
Register the Simple Console MCP server in PolicyLayer and add a rule for list_targets: 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 Simple Console MCP. Nothing to install.
list_targets 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 list_targets 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 list_targets. 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.
list_targets is provided by the Simple Console MCP server (tznthou/simple-console-mcp). 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.
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