Publish/subscribe events for agent coordination. Agents can emit events and other agents can poll for them. Events are timestamped and stored in a log for audit. Supports the ACP/A2A event-driven pattern.
AI agents use omniwire_event to create or update resources in OmniWire — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your OmniWire environment.
The tool allows agents to emit (publish) events and poll (subscribe) for them, with events stored in a log. Publishing/emitting events is a Write operation as it creates new data in an event log. While reading (polling) is also supported, the more impactful action is emitting events that can coordinate other agents — potentially triggering downstream actions.
From the tool's definition Publish/subscribe events for agent coordination. Agents can emit events and other agents can poll for them. Events are timestamped and stored in a log for audit.
Documented attack patterns abuse exactly the kind of access omniwire_event 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_event:
{
"version": "1",
"default": "deny",
"tools": {
"omniwire_event": {
"limits": [
{
"counter": "omniwire_event_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}omniwire_event stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Publish/subscribe events for agent coordination. Agents can emit events and other agents can poll for them. Events are timestamped and stored in a log for audit. Supports the ACP/A2A event-driven pattern. It is categorised as a Write tool in the OmniWire MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the OmniWire MCP server in PolicyLayer and add a rule for omniwire_event: 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_event 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 omniwire_event 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_event. 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_event 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.
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