Inspect variables in scope when paused (Local, Closure, this)
AI agents call debugger_inspect_scopes 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.
The tool retrieves and displays variable values from debugger scopes when execution is paused. This is a read operation—it queries runtime state but does not modify data, execute code, or trigger side effects.
From the tool's definition Tool name "debugger_inspect_scopes" and description "Inspect variables in scope when paused (Local, Closure, this)" indicate read-only introspection of runtime state without modification.
Attacks that exploit this kind of access
Inspect variables in scope when paused (Local, Closure, this). 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 debugger_inspect_scopes: 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.
debugger_inspect_scopes 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 debugger_inspect_scopes 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 debugger_inspect_scopes. 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.
debugger_inspect_scopes 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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