Stop scrcpy streaming
AI agents invoke android_stop_scrcpy_stream to trigger actions in Android MCP Server. 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.
This tool triggers termination of a running service on a controlled device. While not destructive (data is not deleted), not financial, and not a simple read operation, it executes a command with external side effects—stopping an active stream could interrupt workflows, disrupt monitoring, or interfere with ongoing processes. The impact depends on the context (e.g., stopping a critical stream vs.
From the tool's definition Stops an active scrcpy streaming session; this is an operational control that terminates an external process/service on the Android device.
Attacks that exploit this kind of access
Stop scrcpy streaming. It is categorised as a Execute tool in the Android MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Android MCP Server MCP server in PolicyLayer and add a rule for android_stop_scrcpy_stream: 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 Android MCP Server. Nothing to install.
android_stop_scrcpy_stream 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 android_stop_scrcpy_stream 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 android_stop_scrcpy_stream. 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.
android_stop_scrcpy_stream is provided by the Android MCP Server MCP server (jduartedj/android-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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