Cross-node log search and aggregation. Run grep/journalctl across all nodes in parallel, merge results with node prefix. Actions: search, tail, count.
AI agents invoke omniwire_log_aggregate to trigger actions in OmniWire. 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.
This tool executes shell commands (grep/journalctl) across distributed infrastructure nodes. While log searching appears benign, the ability to execute arbitrary grep patterns and journalctl queries across all nodes in parallel gives an AI agent significant leverage to extract sensitive system information, monitor real-time operations, or trigger side effects through complex query patterns.
From the tool's definition The tool description states it can 'Run grep/journalctl across all nodes in parallel' and lists actions including 'search, tail, count'.
Documented attack patterns abuse exactly the kind of access omniwire_log_aggregate gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OmniWire, and nothing reaches the server without passing your rules. This is the rule we recommend for omniwire_log_aggregate:
{
"version": "1",
"default": "deny",
"tools": {
"omniwire_log_aggregate": {
"limits": [
{
"counter": "omniwire_log_aggregate_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}omniwire_log_aggregate 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.
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Cross-node log search and aggregation. Run grep/journalctl across all nodes in parallel, merge results with node prefix. Actions: search, tail, count. It is categorised as a Execute tool in the OmniWire MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the OmniWire MCP server in PolicyLayer and add a rule for omniwire_log_aggregate: 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 OmniWire. Nothing to install.
omniwire_log_aggregate 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 omniwire_log_aggregate 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 omniwire_log_aggregate. 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.
omniwire_log_aggregate is provided by the OmniWire MCP server (voidchecksum/omniwire). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OmniWire, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
88 OmniWire tools catalogued and risk-classified — across an index of 43,000+ MCP servers.