List all active debug sessions.
AI agents call debug_list_sessions to retrieve information from Polybugger without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about existing debug sessions without creating, modifying, deleting, or executing anything. It is a read-only information disclosure operation with minimal security impact.
From the tool's definition Tool name is 'debug_list_sessions' and description states 'List all active debug sessions' — a pure retrieval operation with no side effects.
Attacks that exploit this kind of access
List all active debug sessions. It is categorised as a Read tool in the Polybugger MCP Server, which means it retrieves data without modifying state.
Register the Polybugger MCP server in PolicyLayer and add a rule for debug_list_sessions: 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 Polybugger. Nothing to install.
debug_list_sessions 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 debug_list_sessions 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 debug_list_sessions. 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.
debug_list_sessions is provided by the Polybugger MCP server (wilfoa/polybugger-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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