renef_server_restart
Restarts renef_server on the connected Android device.
This record as markdown: /tools/ahmeth4n-renef-mcp/renef-server-restart.md
What renef_server_restart does on Renef
AI agents invoke renef_server_restart to trigger actions in Renef. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why renef_server_restart is rated High
Restarting a service on an Android device is an Execute action: it runs an operation on a target system with side effects that persist but are not irreversible (the service can be restarted again). While not destructive, it disrupts running processes and could cause temporary denial of service or loss of in-memory state.
From the tool's definition Tool description states 'Restarts renef_server on the connected Android device' — this triggers an external operation (service restart) whose effects depend on the state of the Android system and running processes.
Attacks that exploit this kind of access
The rule that runs renef_server_restart safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Renef, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For renef_server_restart, this is the rule to start with:
renef_server_restart stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Renef, apply this rule, and every renef_server_restart call is checked against it from then on.
Questions about renef_server_restart
Restarts renef_server on the connected Android device. It is categorised as a Execute tool in the Renef MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Renef MCP server in PolicyLayer and add a rule for renef_server_restart: 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 Renef. Nothing to install.
renef_server_restart is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the renef_server_restart 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 renef_server_restart. 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.
renef_server_restart is provided by the Renef MCP server (ahmeth4n/renef-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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