Register a RatchetGate session — formally proved MCP session re-key preventing CVE-2025-6514 long-lived credential theft. Returns session_id and next_probe_at. $0.002/call.
Part of the Aaaa Nexus server.
Free to start. No card required.
AI agents invoke ratchetgate_session to trigger processes or run actions in Aaaa Nexus. 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.
ratchetgate_session 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": {
"ratchetgate_session": {
"limits": [
{
"counter": "ratchetgate_session_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Aaaa Nexus policy for all 9 tools.
These attack patterns abuse exactly the kind of access ratchetgate_session 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.
Register a RatchetGate session — formally proved MCP session re-key preventing CVE-2025-6514 long-lived credential theft. Returns session_id and next_probe_at. $0.002/call.. It is categorised as a Execute tool in the Aaaa Nexus MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Aaaa Nexus MCP server in PolicyLayer and add a rule for ratchetgate_session: 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 Aaaa Nexus. Nothing to install.
ratchetgate_session 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 ratchetgate_session 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 ratchetgate_session. 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.
ratchetgate_session is provided by the Aaaa Nexus MCP server (atomadictech-ud4n/aaaa-nexus). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 Aaaa Nexus 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.