NEXUS — The Integration & Orchestration Layer

XIILIO AGENT INFRASTRUCTURE

NEXUS is the layer every other agent runs on. NOVA, ARIA, HERALD, SENTINEL and CORTEX do not each hold their own private copy of your data — they read and write through NEXUS, so one record, one identity and one audit trail run across the whole stack. Availability of any given system depends on that vendor's API and your plan with them.

WHAT THE BACKBONE GUARANTEES

One authoritative source per field

Conflicts are resolved by a rule you set, not by whichever system wrote last.

Identity resolution

The same person or company across CRM, billing, ads and email is matched to one record instead of five.

Idempotent writes

A retried sync does not create duplicate contacts, tasks or deals.

Backpressure and rate limits

Vendor API limits are respected and queued through, rather than failing a sync mid-run.

Replayable failures

A failed sync is queued, surfaced and re-runnable once the cause is fixed. Nothing is silently dropped.

Full audit trail

Every read, write, mapping change and agent action is logged with timestamp, actor and before/after values.

Scoped permissions

Each connection uses least-privilege credentials, revocable independently, with no shared master key across systems.

Your data stays yours

Connections can be disconnected at any time and the systems keep working — NEXUS coordinates your tools, it does not hold them hostage.

CONNECTING A SYSTEM

1. 01

   MAP

   We list the systems you run, what each is authoritative for, and where records currently disagree.

2. 02

   CONNECT

   Authorise each system with scoped credentials. Nothing is ripped out or migrated.

3. 03

   RECONCILE

   Duplicate and conflicting records are surfaced for a decision before any agent writes to them.

4. 04

   GOVERN

   Set write permissions per system: read-only, write with approval, or write automatically.

5. 05

   RUN

   Agents operate through the backbone, every action logged, with a dry-run period before writes go live.

Connector availability depends on each vendor's API and your own plan with them. Where a native connector is not available, NEXUS uses documented APIs or webhooks — we will tell you which before you buy, not after.

UNIFIED EVENT ARCHITECTURE

Every connected system publishes its events onto one shared bus. Any event can trigger an AI workflow, and any workflow can call any agent. That is what makes the agents a system rather than six separate tools — a lead created in your CRM, a call answered by ARIA, a card charged in Stripe and a conversion fired by an ad platform all arrive in the same normalised shape, with the same identity resolution, permissions and audit trail behind them.

EVENTS ON THE BUS

EVENT-TRIGGERED WORKFLOWS

PLATFORM CONTROLS

OAuth and credentials

Each system is authorised with scoped OAuth or least-privilege API credentials, stored encrypted, rotatable and revocable one connection at a time.

Permissions

Per system and per object: read-only, write with approval, or write automatically. Defaults are read-only until you widen them.

Webhooks

Inbound webhooks are signature-verified and de-duplicated; outbound webhooks let your own systems subscribe to Xiilio events.

Retry logic

Failed calls retry with exponential backoff and jitter, respect vendor rate limits, and stop at a defined ceiling rather than hammering an API.

Error handling

Anything that cannot be delivered goes to a dead-letter queue, is surfaced in the command centre, and is replayable once the cause is fixed. Nothing is silently dropped.

Audit logs

Every event, workflow run, agent action and configuration change is logged with timestamp, actor, inputs and before/after values, and is exportable.

Role-based access

Who can view, edit, approve, execute or connect is set by role. Approval rights are separate from build rights.

Data mapping

Field-level mapping between systems with type coercion, transformation rules and one authoritative source per field, changeable without engineering work.

Event history

A searchable timeline of every event and every workflow it triggered, filterable by system, record, agent or outcome.

Workflow versioning

Workflows are versioned, diffable and roll-backable. Each run records the version it executed, so past behaviour stays explainable.

Human approval

Any step can be marked approval-required, with a named approver, a timeout and an escalation path if nobody responds.

Event coverage depends on what each vendor's API and webhook surface exposes and on the permissions you grant. Workflows described here are configuration examples, not guaranteed outcomes.

INPUTS, LOGIC, OUTPUTS

NEXUS specification

GUARDRAILS, IN WRITING

An autonomous agent is only useful if its limits are explicit. Here is what NEXUS will never do, and where a human always signs off.

WHEN THINGS GO WRONG

EXAMPLE OUTPUT

Workflow run record — a representative example of what NEXUS writes back into your systems.

workflow       : 'Booking → prep → follow-up' v7
trigger        : booking.created · ARIA · 10:04 UTC
crm.update     : deal 48213 → stage 'Audit booked' ✓
crm.note       : qualification summary attached ✓
task.create    : 'Prep audit' → owner J. Consultant, due Mon 09:00 ✓
slack.notify   : #revenue · transcript link ✓
guardrail      : no destructive action in this workflow
duration       : 1.8s · 0 errors · fully audit-logged

EXAMPLE DASHBOARD

NEXUS — automation dashboard. Every figure below is a simulated demo value, not a reported client result.

KPIs NEXUS IS HELD TO

Technical Architecture

HOW NEXUS CONNECTS

NEXUS reads from your existing systems, applies its own governed processing, and writes results back. Nothing runs outside these lanes.

• ▸Every workflow is versioned — a run records which version produced it
• ▸Destructive and billing actions pass through an approval gate that cannot be bypassed by a workflow

SECURITY & AUDIT LOGS

Full detail on encryption, data handling and your GDPR rights is on the Trust & Security page.