Get the complete scope chain for a call frame
AI agents call get-scope-chain to retrieve information from Debugger 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 debugging metadata (scope chain information) for inspection purposes only. It has no side effects, does not execute code, does not modify data, and does not delete or move resources. It is a passive read operation typical of debuggers, similar to inspecting variables or stack frames.
From the tool's definition Tool name 'get-scope-chain' and description 'Get the complete scope chain for a call frame' indicate a read-only debugging operation that retrieves scope information during debugging sessions without modifying any state.
Attacks that exploit this kind of access
Get the complete scope chain for a call frame. It is categorised as a Read tool in the Debugger MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Debugger MCP Server MCP server in PolicyLayer and add a rule for get-scope-chain: 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 Debugger MCP Server. Nothing to install.
get-scope-chain 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 get-scope-chain 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 get-scope-chain. 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.
get-scope-chain is provided by the Debugger MCP Server MCP server (phoenixrr2113/debugger-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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