Enterprise architecture: LangGraph manages the company-level workflow. CrewAI manages specialist department teams. Sub-agents act like skilled employees inside each department. Validators act like independent reviewers. Human approvers remain responsible for final high-risk decisions.
1. UI / Control Center Layer
7 componentsWorkflow BuilderAgent ConfigurationTool AssignmentApproval ScreenAudit TrailSimulation ScreenDashboard
2. LangGraph Orchestration Layer
11 componentsRequest intakeWorkflow classificationAgent inclusion / exclusionDynamic routingParallel executionSequential executionRework loopsApproval routingConflict detectionFinal synthesisAudit logging
3. CrewAI Specialist Execution Layer
9 componentsCisco Crew — Cisco Pre-Sales LeadCloud Crew — Cloud Solution ArchitectSoftware Crew — Application Solution ArchitectAI / Data Crew — AI Solution ArchitectSecurity Crew — Security Lead ArchitectLegal Crew — Legal LeadFinance Crew — Finance LeadOperations Crew — Delivery LeadIT-Security Review Crew — Enterprise Security Reviewer
4. Validator Layer
30 componentsSchema ValidatorTool Permission ValidatorBest-Practice ValidatorRisk ValidatorConfidence ValidatorHuman Approval ValidatorCommercial Commitment ValidatorSecurity Exception ValidatorLegal Clause ValidatorAWS Well-Architected ValidatorLanding Zone ValidatorMigration Readiness ValidatorFinOps ValidatorCloud-Ops Readiness ValidatorSoftware Architecture ValidatorAPI Integration ValidatorNFR ValidatorDelivery Estimate ValidatorRAG Grounding ValidatorData Source ValidatorModel Selection ValidatorGuardrails ValidatorToken Cost ValidatorEvaluation Plan ValidatorZero Trust ValidatorIAM/PAM ValidatorSOC/SIEM ValidatorCompliance Mapping ValidatorVulnerability Risk ValidatorData Privacy Validator
5. Tool & Knowledge Layer
10 componentsRAG knowledge basesMCP toolsEnterprise APIsCalculatorsDocument searchProduct cataloguesBest-practice librariesPricing toolsSecurity scannersAudit logs
6. Human Approval Layer
8 componentsFinal pricingFinal BoMLegal approvalSecurity risk acceptanceProduction architecture approvalDelivery timeline commitmentContract submissionCustomer-facing final response
How layers connect
- UI sends a request to LangGraph orchestration.
- LangGraph classifies, plans, and selects the crews.
- CrewAI crews execute with their sub-agents and tools.
- Validators independently check every output.
- Approval Router escalates to humans when required.
- Final Synthesizer returns a consolidated response, audit logged.
Production-grade controls
- • Tool & permission sandboxing per agent / crew
- • Confidence + risk thresholds enforced by validators
- • Independent rework loops back to source crew
- • All decisions auditable end-to-end
- • Human-in-the-loop on all commercial / security commitments