recorder_start
Begin recording user interactions as a test scenario
This record as markdown: /tools/alexgladkov-claude-in-mobile/recorder-start.md
What recorder_start does on Claude Mobile
AI agents invoke recorder_start 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 recorder_start is rated High
This tool triggers an external operation (recording mechanism) on a mobile device that has side effects—it initiates capture of user interactions and creates artifacts (recordings). While not destructive or financial, it is an Execute-category action because it activates a system-level process whose outcome depends on how the AI agent invokes it.
From the tool's definition Tool name 'recorder_start' and description 'Begin recording user interactions as a test scenario' indicate it initiates a recording operation that captures and logs device interactions, which is an external operation whose effects depend on arguments (device…
Attacks that exploit this kind of access
The rule that runs recorder_start 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 recorder_start, this is the rule to start with:
recorder_start 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 recorder_start call is checked against it from then on.
Questions about recorder_start
Begin recording user interactions as a test scenario. 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 recorder_start: 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.
recorder_start 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 recorder_start 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 recorder_start. 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.
recorder_start 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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