AI Layer (LangGraph)
Evidence synthesis, reasoning over context, strategy generation, and structured outputs with provenance.
LangGraph · Claude / OpenAI · Typed Graph State01 / Revenue operations
Flagship Engineering Case StudyAI Revenue Operating System
An evidence-backed operating flow for lead research, deterministic qualification, human-approved outreach, and durable CRM automation.
The operational problem
Inbound revenue work is often split across research tabs, spreadsheets, inboxes, subjective scoring, and delayed CRM updates. That makes evidence hard to trace and follow-up easy to lose.
— Research is scattered across tabs and web searches
— Qualification is inconsistent and subjective
— Outreach context is lost across team inboxes
— CRM updates lag behind operational reality
+ Evidence & source provenance are explicitly persisted
+ Hard qualification rules are deterministic code
+ Outreach is human-gated before any external write
+ Workflow state is durable, observable, and reconcilable
System workflow
Unique signature · LangGraph & Approval
From raw lead webhook to evidence gathering, ICP scoring, and strategy generation. Each node persists output into PostgreSQL with strict schema validation.
The LangGraph agent completes and yields execution. It does not wait in memory or hold database locks. Durable Celery workflows resume only after an authorized user approves the draft in the dashboard.
Architecture
Evidence synthesis, reasoning over context, strategy generation, and structured outputs with provenance.
LangGraph · Claude / OpenAI · Typed Graph StateHard ICP scoring boundaries, company size thresholds, conflict resolution policy, and compliance constraints in Python.
Python · Pydantic · Deterministic Rule EnginePersisted worker jobs, retries, idempotency keys, transactional outbox pattern, and asynchronous reconciliation.
FastAPI · Celery / Redis Workers · Async TasksOperational review dashboard, human approval gate, multi-tenant isolation, and complete event audit logs.
Next.js · PostgreSQL (29 Tables) · RBACReliability engineering
Idempotency keys at action boundaries return existing logical results rather than creating duplicate work or duplicate outbound messages.
Durable workflow state in PostgreSQL survives execution worker crashes and can resume safely without restarting the entire graph.
When an external API call times out without confirmation, reconciliation is required before retrying to prevent duplicate external actions.
Optimistic locking and tenant-level concurrency controls prevent simultaneous conflicting updates on active leads.
Human control
Automated search tools gather raw data with verifiable URLs and timestamps.
Language models synthesize signals and draft recommendations but cannot execute external actions.
Deterministic logic evaluates ICP qualification boundaries without model hallucinations.
A person reviews and explicitly approves outbound messages before any CRM write or email dispatch.
Current limitations
— No public customer-production claim is made; this case study documents architecture and verified implementation checkpoints.
— Live provider integrations (e.g. real CRM instances) must be configured with tenant credentials per deployment.
— Public numerical benchmarks are withheld until re-verified against the living repository.
Your workflow
Start with one workflow and no production access.
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