AI AGENTS & ORCHESTRATION
Agency Agentic System
Multi-agent AI platform with n8n orchestration, LangGraph reasoning, and real-time dashboard
A production-grade agentic system combining n8n workflows with LangGraph StateGraphs for AI reasoning. 6 specialized agents handle content creation, lead generation, SEO, design, and security monitoring — all unified through a Next.js dashboard with approval workflows and analytics.
THE PROBLEM
Manual content creation across social channels was inconsistent and time-consuming
Lead generation and CRM lived in scattered spreadsheets
No approval gates for AI-generated content before publishing
Zero security monitoring or threat analysis
No unified dashboard for analytics and operations
THE SOLUTION
- Hybrid n8n + LangGraph architecture — n8n handles integrations, LangGraph powers AI reasoning
- 6 specialized AI agents with PostgreSQL memory and quality gates
- Next.js 15 dashboard with real-time status, approvals, and analytics
- Dedicated security agent with prompt injection defense and audit logging
SYSTEM ARCHITECTURE
5 Components
- Webhook POST trigger with idempotency key support
- Feature-flagged routing: n8n LLM path or LangGraph StateGraph path (zero-downtime migration)
- LangGraph Router agent: task decomposition → plan parsing → safety nets → validation → keyword fallback
- Multi-agent pipeline with conditional IF gates dispatching to 6+ agent workflows
- Standard response envelope aggregation from all executed agents
SYSTEM VISUALS
AGENT ARCHITECTURE
AuraContent
Content Creator- LangGraph StateGraph with session memory — tracks generated topics/hooks across requests to prevent repeats
- Generates content for 6 platforms: IG, FB, WEB, LinkedIn, YouTube, Newsletter
- NovaOps quality review gate with automatic retry on compliance failures
- Reads 30-day content memory + deduplicates via content fingerprint (topic + hook + platform hash)
- Stores all output as drafts gated behind human approval
LocalSpark
Lead Generator- Discovers local businesses via Google Places API with radius-based search
- Scores leads on 1-10 scale and upserts into CRM with website-or-name+city deduplication
- Generates personalized outreach drafts (DM and email) stored as unsent templates
- Tracks follow-up cadence with next_follow_up_at scheduling
RankRitual
SEO Strategist- LangGraph StateGraph with three-pass pipeline: ReAct Research Agent (Google Search tool) → Content Generation (gpt-4.1) → Content Scoring → NovaOps Quality Gate
- Quality gate retry loop — if score < 60 or NovaOps compliance fails, regenerates with targeted feedback (max 2 retries)
- Fetches and analyzes live web pages with indirect prompt injection scanning on scraped HTML
- Integrates GA4 site analytics with self-healing health checks and freshness-aware reporting
- Generates full SEO/AEO content with JSON-LD schema, delivered as Google Docs via automated pipeline
NovaOps
Operations Manager- Generates weekly operational plans with max 3 blocks/day and clear targets
- Reads cross-agent run history, unapproved drafts, and leads needing follow-up
- Provides freshness-aware analytics context (flags stale GA4 data instead of reporting zeros)
- Powers the cost analytics estimation layer on the dashboard
GFXDesigner
Visual Designer- Generates AI images via DALL-E 3 with multi-image batch support (1-5 per request)
- Runs a design system sub-workflow that can scrape reference URLs for style extraction
- Supports reference image analysis via GPT-4o Vision for creative direction matching
- Uploads assets to Supabase Storage and renders video reels from generated images
Paladin
Security Guardian- Scans all inbound requests with weighted regex prompt injection scoring (threshold 8, blocks at match)
- Defends against indirect prompt injection in scraped HTML and Google Search results
- Maintains audit logs via Next.js middleware on all API routes with Zod schema validation
- Computes weekly security scores, tracks threat trends, and escalates critical findings to Discord
WORKFLOW FLOW
IMPLEMENTATION STEPS
- 1.Designed PostgreSQL schema with 12+ tables for idempotency and memory
- 2.Built Agency Router — webhook trigger, LLM planning, multi-agent dispatch
- 3.Implemented AuraContent agent with 30-day memory and 6-platform support
- 4.Created LocalSpark lead generation with Google Places API and CRM upserts
- 5.Built RankRitual SEO agent as LangGraph StateGraph with quality gates
- 6.Developed GFXDesigner for AI image generation and video rendering
- 7.Added Paladin security agent with prompt injection scanning
- 8.Deployed Next.js dashboard with 10 pages and real-time agent tracking
IMPACT & RESULTS
Operational
- Eliminated manual content creation — AI drafts gated behind approval workflows
- Automated lead discovery, scoring, and outreach template generation
- Weekly operational plans generated automatically from cross-agent activity data
- Centralized error handling with ErrorLogger → Google Sheets + Discord alerts
System Architecture
- Hybrid n8n + LangGraph architecture — n8n for integrations, LangGraph for stateful AI reasoning
- Python FastAPI service deployed on Railway with feature-flagged rollout for zero-downtime migration
- LangGraph StateGraphs with ReAct tool use, conditional retry loops, and NovaOps quality gates
- 21+ n8n workflows orchestrated through a Router with LLM-based multi-agent planning
- PostgreSQL memory layer with UPSERT deduplication, 30-day context windows, and session-level topic tracking
Security & Compliance
- Multi-layer prompt injection defense (direct + indirect on external content)
- Full audit trail on every API call with Zod schema validation
- Per-agent permission enforcement with blocked content patterns and rate limits
- Dedicated Paladin agent computing security scores with Discord escalation for critical threats