Execute bash commands in a REMOTE sandbox for file operations, data processing, and system tasks. Essential for handling large tool responses saved to remote files. PRIMARY USE CASES: - Process large tool responses saved by RUBE_MULTI_EXECUTE_TOOL to remote sandbox - File system operations, extra...
Risk signalsAccepts freeform code/query input (command)
Part of the Rube server.
Free to start. No card required.
AI agents invoke RUBE_REMOTE_BASH_TOOL to trigger processes or run actions in Rube. 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.
RUBE_REMOTE_BASH_TOOL can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer 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.
{
"version": "1",
"default": "deny",
"tools": {
"RUBE_REMOTE_BASH_TOOL": {
"limits": [
{
"counter": "rube_remote_bash_tool_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Rube policy for all 11 tools.
These attack patterns abuse exactly the kind of access RUBE_REMOTE_BASH_TOOL gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Execute bash commands in a REMOTE sandbox for file operations, data processing, and system tasks. Essential for handling large tool responses saved to remote files. PRIMARY USE CASES: - Process large tool responses saved by RUBE_MULTI_EXECUTE_TOOL to remote sandbox - File system operations, extract specific information from JSON with shell tools like jq, awk, sed, grep, etc. - Commands run from /home/user directory by default. It is categorised as a Execute tool in the Rube MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Rube MCP server in PolicyLayer and add a rule for RUBE_REMOTE_BASH_TOOL: 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 Rube. Nothing to install.
RUBE_REMOTE_BASH_TOOL 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 RUBE_REMOTE_BASH_TOOL 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 RUBE_REMOTE_BASH_TOOL. 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.
RUBE_REMOTE_BASH_TOOL is provided by the Rube MCP server (Composio/Rube). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Rube tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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