High Risk →

stop_session

Stop the active scrcpy session. Tools will fall back to ADB commands.

Part of the Scrcpy MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

scrcpy-mcp Execute Risk 3/5

AI agents invoke stop_session to trigger processes or run actions in Scrcpy. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

stop_session can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

io-github-juancf-scrcpy-mcp.yaml
tools:
  stop_session:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Scrcpy policy for all 38 tools.

Tool Name stop_session
Category Execute
MCP Server Scrcpy MCP Server
Risk Level High

View all 38 tools →

Agents calling execute-class tools like stop_session have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Execute risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

stop_session is one of the high-risk operations in Scrcpy. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

What does the stop_session tool do? +

Stop the active scrcpy session. Tools will fall back to ADB commands.. It is categorised as a Execute tool in the Scrcpy MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on stop_session? +

Add a rule in your Intercept YAML policy under the tools section for stop_session. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Scrcpy MCP server.

What risk level is stop_session? +

stop_session is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit stop_session? +

Yes. Add a rate_limit block to the stop_session rule in your Intercept 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.

How do I block stop_session completely? +

Set action: deny in the Intercept policy for stop_session. 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.

What MCP server provides stop_session? +

stop_session is provided by the Scrcpy MCP server (scrcpy-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Scrcpy

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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