LLM workflow (chain, route, parallelise)
Deterministic steps with a model inside each. The right default.
Use it when
The process has known steps and the model is needed for one or two of them: classify, extract, draft, summarise. Most business automation belongs here, not in a free-running agent.
The parts, top to bottom
across every level
Hover or tap any part to see what it does. The light shows the order a request moves through.
What happens, in order
- 1Input event
- 2Pre-process & validate
- 3LLM step with schema
- 4Rule-based checks
- 5Next LLM step or branch
- 6Write result & trace
What we typically build it with
Trade-offs
Less flexible than an agent, far easier to test, cheaper to run, predictable latency. Reach for agents only when the path cannot be known in advance.
Further reading
Problems this architecture solves
Generic problem statements with the flow and the outcomes the industry has documented.
Documents keyed in by hand
Invoices, KYC files, claims and contracts arrive as PDFs and photos. People retype them, errors slip through, and the backlog grows every month-end.
How the system works
- Ingest PDF / image / email
- Classify document type
- Extract to a schema
- Validate & score confidence
- Auto-post or route to review
Outcome: Documented deployments classify documents in under a second, turn day-long claims backlogs into minutes, and reach 85% no-touch invoice processing within six months with a seven-month payback. DXC with Claude; Vic.ai
ArchitectureSwivel-chair work across systems
Onboarding, reconciliation, procurement and approvals require people to read one system and type into another, with rules that live in someone's head.
How the system works
- Trigger (email, form, event)
- Orchestrator plans steps
- Worker agents read & decide
- Confirm risky actions
- Update systems & log
Outcome: CRM-native agents at a regulated vendor deflected 72% of support cases to self-service and saved 7.5 hours per case handled with AI assistance. Smarsh on Salesforce Agentforce
ArchitectureLet's build intelligent systems that drive growth
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