Push JettyScript automation rules to a device. Rules run on-device and can trigger alerts when sensor thresholds are crossed.
Part of the Jettyd server.
Free to start. No card required.
AI agents use push_rules to create or modify resources in Jettyd. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call push_rules repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Jettyd.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"push_rules": {
"limits": [
{
"counter": "push_rules_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Jettyd policy for all 5 tools.
These attack patterns abuse exactly the kind of access push_rules gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Push JettyScript automation rules to a device. Rules run on-device and can trigger alerts when sensor thresholds are crossed.. It is categorised as a Write tool in the Jettyd MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Jettyd MCP server in PolicyLayer and add a rule for push_rules: 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 Jettyd. Nothing to install.
push_rules is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the push_rules 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 push_rules. 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.
push_rules is provided by the Jettyd MCP server (@jettyd/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 5 Jettyd tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.