Run a compact non-destructive close-task check with one process snapshot and a dry-run cleanup plan. It never returns a live confirm token and never terminates processes.
AI agents call session_close_check to retrieve information from Clean Process Ended without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool explicitly states it is non-destructive, performs only a snapshot and dry-run plan, and never terminates processes. It purely reads and reports state without any side effects, making it a Read category tool with low severity.
From the tool's definition 'non-destructive close-task check', 'never returns a live confirm token and never terminates processes', 'dry-run cleanup plan'
Attacks that exploit this kind of access
Run a compact non-destructive close-task check with one process snapshot and a dry-run cleanup plan. It never returns a live confirm token and never terminates processes. It is categorised as a Read tool in the Clean Process Ended MCP Server, which means it retrieves data without modifying state.
Register the Clean Process Ended MCP server in PolicyLayer and add a rule for session_close_check: 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 Clean Process Ended. Nothing to install.
session_close_check 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 session_close_check 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 session_close_check. 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.
session_close_check is provided by the Clean Process Ended MCP server (marcelocaporale/clean-process-ended). 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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