Platform Architecture

How an Enterprise Agent
Actually Works

A production enterprise agent is not a single prompt. It is a layered architecture where knowledge, data, rules, reasoning, and human oversight work together — each layer accountable, auditable, and replaceable.

The Ten-Layer Architecture

From Knowledge to Deployed Agent

Each layer feeds the next. Knowledge grounds the agent. Integrations connect it to your systems. Data structures what it sees. Rules bound what it may do. Workflows orchestrate its steps. The runtime reasons. Humans approve. Audits record. Security protects.

01

The Foundation

Enterprise Knowledge

Key Components

Policy & procedure documents
Product & service catalogs
Historical case data
Domain expertise corpus
Regulatory frameworks

Technologies

RAGVector EmbeddingsSemantic SearchKnowledge Graphs
02

Connect Everything

Integrations Layer

Key Components

CRM & ERP connectors
Database & warehouse access
SaaS API integrations
Internal system bridges
Real-time webhooks

Technologies

OAuth 2.0REST / GraphQLWebhooksData Connectors
03

Single Source of Truth

Structured Data Layer

Key Components

Normalized entity models
Relationship mapping
Data validation pipelines
Versioned records
Real-time synchronization

Technologies

Structured SchemasData ValidationEvent SourcingAudit Fields
04

Guardrails That Never Sleep

Rules & Constraints Engine

Key Components

Business logic constraints
Compliance guardrails
Action permission policies
Threshold & limit rules
Geographic & regulatory boundaries

Technologies

Policy-as-CodeDecision TreesConstraint SolversPolicy Engine
05

Orchestration & Logic

Workflow Engine

Key Components

Multi-step process orchestration
Conditional branching & switching
Parallel task execution
Durable waits & scheduling
Error handling & retries

Technologies

CNCF SWFState MachinesEvent TriggersDurable Execution
06

Reasoning & Action

Agent Runtime

Key Components

LLM inference & reasoning
Tool selection & execution
Context window management
Structured output generation
Multi-model orchestration

Technologies

Function CallingChain-of-ThoughtStructured OutputsTool Use
07

Trust Through Oversight

Human Approval Loop

Key Components

Risk-based approval routing
Department-level review queues
One-click approve / reject / modify
Delegation & escalation paths
Approval SLA tracking

Technologies

Approval WorkflowsRole-Based RoutingSLA MonitoringAudit Signatures
08

Every Action, Recorded

Audit & Observability

Key Components

Immutable action logs
Decision provenance tracking
Data access auditing
Performance & cost metrics
Compliance reporting

Technologies

Immutable LogsDistributed TracingMetrics & AlertsCompliance Reports
09

Enterprise-Grade Protection

Security & Governance

Key Components

Row-level data isolation
Role-based access control
Encryption at rest & in transit
Governance & lifecycle policies
Secrets & credential management

Technologies

RBACRLSAES-256OAuth ScopesAudit Governance
10

The Deployed Solution

Enterprise Agent

Key Components

Domain-specific intelligence
Governed autonomous action
Human-in-the-loop oversight
Full audit accountability
Continuous improvement loop

Technologies

Custom-BuiltProduction-DeployedEnterprise-GovernedAudit-Ready
Design Principles

Principles That Govern Every Layer

These aren't features — they're the architectural commitments that make enterprise agents safe, accountable, and maintainable.

Layered, Not Monolithic

Each concern — knowledge, data, rules, runtime, approval — is a separate layer. You can modify, replace, or extend any layer without rebuilding the whole agent.

Human-in-the-Loop by Design

Autonomy is earned, not assumed. Agents start conservative and gain autonomy as trust is established through the approval loop.

Accountability First

If an agent took an action, you can see exactly why — what data it read, what rules it evaluated, what reasoning it used, and who approved it.

Security as Architecture

Security isn't bolted on — it's woven through every layer, from data isolation to credential management to access governance.

Composable & Reusable

The same knowledge base, integrations, and rules engine serve multiple agents. Build once, deploy across use cases.

Model-Agnostic

The runtime works with any LLM. Swap models per task, per cost constraint, per compliance requirement — without re-architecting.

This Is What We Build

Every SERGENTA agent is built on this architecture — not a demo, not a prototype, but a production system your enterprise can trust.

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