This record as markdown: /tools/alexgladkov-claude-in-mobile/system-wait.md
What system_wait does on Claude Mobile
AI agents invoke system_wait to trigger actions in Claude Mobile. 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 system_wait is rated High
This tool triggers an external operation (a system-level delay) whose effect depends on the argument (duration in milliseconds). It is not merely retrieving data (Read), nor creating/modifying reversible data (Write), nor permanently destroying data (Destructive), nor moving money (Financial). It fits Execute because it runs an operation with side effects on system state/timing.
From the tool's definition The tool name 'system_wait' and description 'Wait for specified duration (ms)' indicate it executes a timed delay operation. While described as a wait function, this is an executable action that controls program flow and timing in mobile automation contexts.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
The rule that runs system_wait safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude Mobile, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For system_wait, this is the rule to start with:
system_wait 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 Claude Mobile, apply this rule, and every system_wait call is checked against it from then on.
Questions about system_wait
Wait for specified duration (ms). It is categorised as a Execute tool in the Claude Mobile MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Claude Mobile MCP server in PolicyLayer and add a rule for system_wait: 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 Claude Mobile. Nothing to install.
system_wait 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 system_wait 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 system_wait. 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.
system_wait is provided by the Claude Mobile MCP server (alexgladkov/claude-in-mobile). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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