repl_key

Send a named key to a session. Editing/navigation for driving TUIs.

SERVERClaude Mobile SOURCEalexgladkov/claude-in-mobile

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/alexgladkov-claude-in-mobile/repl-key.md

WHAT IT DOES

What repl_key does on Claude Mobile

AI agents invoke repl_key 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.

RISK

Why repl_key is rated High

Sends keystrokes to a running session, triggering external interactions whose effects depend on context.

From the tool's definition Send a named key to a session... driving TUIs

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs repl_key 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 repl_key, this is the rule to start with:

repl_key Rate-limited

repl_key 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "repl_key": {
      "limits": [
        {
          "counter": "repl_key_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Claude Mobile, apply this rule, and every repl_key call is checked against it from then on.

FAQ

Questions about repl_key

What does the repl_key tool do? +

Send a named key to a session. Editing/navigation for driving TUIs. 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.

How do I enforce a policy on repl_key? +

Register the Claude Mobile MCP server in PolicyLayer and add a rule for repl_key: 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.

What risk level is repl_key? +

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

Can I rate-limit repl_key? +

Yes. Add a rate_limit block to the repl_key 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.

How do I block repl_key completely? +

Set action: deny in the PolicyLayer policy for repl_key. 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 repl_key? +

repl_key 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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