flow_batch
Execute multiple commands in one round-trip. Set turbo:true for UI context per step (experimental).
This record as markdown: /tools/alexgladkov-claude-in-mobile/flow-batch.md
What flow_batch does on Claude Mobile
AI agents invoke flow_batch 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 flow_batch is rated High
This tool executes arbitrary sequences of commands on mobile devices through ADB and simctl. While individual commands might be reads or writes, the batch execution capability with UI context awareness allows an AI agent to chain together potentially harmful operations (app installations, system changes, input injection) in a single round-trip.
From the tool's definition Tool description states 'Execute multiple commands in one round-trip' with capability to set 'turbo:true for UI context per step'.
Attacks that exploit this kind of access
The rule that runs flow_batch 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 flow_batch, this is the rule to start with:
flow_batch 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 flow_batch call is checked against it from then on.
Questions about flow_batch
Execute multiple commands in one round-trip. Set turbo:true for UI context per step (experimental). 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 flow_batch: 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.
flow_batch 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 flow_batch 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 flow_batch. 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.
flow_batch 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.
More on Claude Mobile, and thousands of servers like it.
Across the catalogue