Get properties of an object by its objectId (for drilling into complex objects)
AI agents call runtime_get_properties to retrieve information from CDP-MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves object properties from the Chrome DevTools Protocol runtime without side effects. However, it operates in a low-level debugging context where an attacker could use property inspection to extract sensitive data (credentials, API keys, user data in memory), and combined with sibling tools like cdp_send_command, could facilitate further exploitation.
From the tool's definition Tool explicitly described as 'Get properties of an object' with no mention of modification, deletion, or execution. The verb 'get' and 'drilling into' indicate data retrieval only.
Attacks that exploit this kind of access
Get properties of an object by its objectId (for drilling into complex objects). It is categorised as a Read tool in the CDP-MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CDP-MCP Server MCP server in PolicyLayer and add a rule for runtime_get_properties: 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 CDP-MCP Server. Nothing to install.
runtime_get_properties 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 runtime_get_properties 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 runtime_get_properties. 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.
runtime_get_properties is provided by the CDP-MCP Server MCP server (jekyll-001/cdp-mcp-server). 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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