[API] Restart a service in a specific environment ⚡️ Best for: ✓ Applying configuration changes ✓ Clearing service state ✓ Resolving runtime issues ⚠️ Not for: × Deploying new code (use deployment_trigger) × Updating service config (use service_update) × Long-term service stoppage (use service_de...
Part of the Railway Infrastructure Manager server.
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AI agents invoke service_restart to trigger processes or run actions in Railway Infrastructure Manager. 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.
service_restart 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": {
"service_restart": {
"limits": [
{
"counter": "service_restart_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Railway Infrastructure Manager policy for all 36 tools.
These attack patterns abuse exactly the kind of access service_restart 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.
[API] Restart a service in a specific environment ⚡️ Best for: ✓ Applying configuration changes ✓ Clearing service state ✓ Resolving runtime issues ⚠️ Not for: × Deploying new code (use deployment_trigger) × Updating service config (use service_update) × Long-term service stoppage (use service_delete) → Prerequisites: service_list → Alternatives: deployment_trigger → Related: service_info, deployment_logs. It is categorised as a Execute tool in the Railway Infrastructure Manager MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Railway Infrastructure Manager MCP server in PolicyLayer and add a rule for service_restart: 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 Railway Infrastructure Manager. Nothing to install.
service_restart 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 service_restart 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 service_restart. 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.
service_restart is provided by the Railway Infrastructure Manager MCP server (antonioevans/railway-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 36 Railway Infrastructure Manager tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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