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LIMIT SYSTEMS
Platform · Messaging
Limit Bus

Durable event streams that don't leave the perimeter.

Limit Platform components talk through durable event streams inside the customer perimeter. No off-premise event bus. No external broker. Audit, integration, and inter-service traffic all flow through the same fabric.

// messaging · don't leave the perimeter

01Overview

Events are durable. Streams are sovereign.

A regulated AI platform produces a constant stream of events worth retaining: identity changes, authorization decisions, model invocations, integration calls, evidence writes. Routing those events through an external messaging service creates a sovereignty gap precisely where there should not be one.

Limit Bus is the messaging fabric that runs inside the customer perimeter. Inter-service communication, audit topics, integration events, and customer-app traffic all flow through the same durable, replayable, customer-owned event store.

02Capabilities

Durable, replayable, schema-versioned.

  1. 01

    Durable event delivery between platform components

    Services produce and consume events through a customer-perimeter event store. Delivery is at-least-once with idempotency support; ordering is preserved per topic partition.

  2. 02

    Replay for audit and incident review

    Events are retained per topic policy. Audit and incident teams can replay an event stream from a point in time, reconstructing what the platform did and when.

  3. 03

    Schema management with versioning and compatibility checks

    Topics carry schemas; schemas are versioned; producer and consumer compatibility is checked. Changes go through normal review and audit.

  4. 04

    Integration topics for customer systems

    External customer systems (ERP, MES, SIEM, ticketing) interoperate with Limit Platform through integration topics. The platform exposes structured events; consumers subscribe to what they need.

03Inside the perimeter

The bus stays on customer hardware.

The messaging fabric deploys inside the customer perimeter on customer-procured infrastructure. No platform event leaves the perimeter through this layer. Cross-site message replication, where used, is customer-controlled.

For air-gapped deployments, the messaging fabric operates fully without external dependency. Cross-perimeter integration with customer systems uses customer-defined transports.

Where it runs
Inside the customer perimeter on customer-procured infrastructure. Sized per event volume.
Delivery semantics
At-least-once with idempotency support. Ordering preserved per topic partition.
Retention
Per-topic retention policies, configurable for audit, replay, and operational needs.
Cross-site
Customer-controlled replication for multi-site deployments. Air-gapped operation supported.
Part of Limit Platform

This capability is one layer of the operating system. Every application uses it. Every customer perimeter that runs Limit Platform gets it. See the full architecture →

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