The enterprise multi-tenant platform combining PostgreSQL pgvector RAG, LangGraph multi-agent orchestration, sub-800ms real-time voice agents, and code-enforced safety guardrails.
Structure-aware markdown chunking, atomic chunk version swapping, and Reciprocal Rank Fusion (RRF). Queries with >= 0.88 similarity return authoritative answers in <50ms at $0.00 cost.
SELECT title, content, 1 - (embedding <=> $vector::vector) AS sim FROM article_chunks WHERE workspace_id = $ws AND is_active = true ORDER BY embedding <=> $vector::vector LIMIT 3;
Move beyond single-prompt LLM wrappers. HelloDesk orchestrates 4 specialized AI agents using a compiled LangGraph state graph with typed state annotations, domain tool calling, and automated policy QA verification.
Every agent handoff triggers Socket.io events (ai:agent-switched, ai:qa-reviewed) so users see live step-by-step progress.
Analyzes natural query intent ➔ Identifies diagnostic status inquiry ➔ Emits ai:agent-switched (Route: technical).
Invokes checkSystemStatus(component: 'all') ➔ REST API (22ms), pgvector (OPERATIONAL), Redis 7 (2ms latency).
Audits specialist draft response against SLA parameters ➔ Emits ai:qa-reviewed and verifies clean markdown formatting.
All HelloDesk platform services are currently 100% operational: Core REST API is responding in 22ms, PostgreSQL pgvector indexes are healthy, and the Redis event queue has a 2ms latency with zero active incidents.
Eliminate LLM hallucinations and slash token costs. HelloDesk combines BM25 full-text search with 768-dimensional dense vector embeddings in native PostgreSQL 17.
-- Hybrid pgvector Cosine Query SELECT c.id, c.title, c.content, 1 - (c.embedding <=> $queryVector::vector) AS similarity FROM article_chunks c WHERE c.workspace_id = $tenantWorkspaceId AND c.is_active = true ORDER BY c.embedding <=> $queryVector::vector LIMIT 3;
LLMs are never the source of truth for transactional data. Connect any internal database endpoint or external API with pre-flight verification.
Equipped with getBillingInfo, checkSystemStatus, searchKnowledgeBase, and getCustomerProfile.
Register company REST endpoints with custom headers (Bearer token). Pre-flight live test verification ensures zero broken tool calls.
Every tool execution is bounded by a 5000ms promise race and persisted into tool_execution_logs for complete enterprise auditability.
Experience conversational voice with sub-800ms Time-To-First-Audio (TTFA). Powered by streaming WebSockets, concurrent transcription, and Piper neural speech synthesis.
Safety is never left to prompt suggestions. Multi-layered deterministic code guardrails protect your brand and customer data.
Multi-pattern regex and adversarial intent classification intercepts jailbreak attempts before token inference.
Detects and masks credit cards, SSNs, and API keys before calling external models.
Deterministic AST analysis blocks unauthorized cash commitments and false refund guarantees.
Retain 100% data ownership and privacy. Connect your existing enterprise providers with live pre-flight verification, or request custom integrations tailored to your stack.
Connect your verified sending domain with mandatory SPF/DKIM authentication and inbound webhook routing.
✓ Pre-flight live test verification
Keep customer screenshots, chat attachments, and brand assets strictly inside your private cloud storage account.
✓ Direct buffer streaming
Bring your own API keys for top frontier models or private self-hosted endpoints with automated token budget guardrails.
✓ Per-workspace budget limits
⚡ Need Custom Integrations? We integrate additional third-party platforms (HubSpot, Salesforce, Zendesk, Stripe, MinIO, Postmark) on demand.
What differentiates a production full-stack + AI system from naive API wrappers: deterministic failure boundaries, code-enforced guardrails, sub-second streaming pipelines, and verified multi-tenancy.
Unbounded single-prompt loops with runaway token burn and unpredictable hallucinations.
LangGraph StateGraph Mesh: 4 specialized nodes (Supervisor, Billing, Tech, QA Reviewer), 5-iteration cap, 15s timeout race.
Naive keyword search or external vector SaaS with no fast-path cache.
PostgreSQL pgvector Hybrid RAG: Reciprocal Rank Fusion (RRF), structure-aware chunking, and <50ms 0-Token Fast-Path ($0.00 cost).
Raw unvalidated LLM text output; risk of executing broken parameters.
Zod Schema Validation: Pre-flight verified custom REST endpoints, timeout races, and database audit logs.
Batch audio file uploads with 2-4 second response lag; AI talks over user.
Sub-800ms TTFA WebSockets: Streaming faster-whisper STT + Piper Neural TTS with client-side VAD instant barge-in cancellation.
Prompt instructions only ("Please do not reveal secret keys or grant refunds").
Code-Enforced Deterministic Guards: PII redaction (CC/SSN), prompt jailbreak filter, and financial promise blockers.
Single-tenant or shared memory with vendor lock-in.
Strict SQL Scoping & BYOI: 4-tier RBAC, Bring-Your-Own-Email (Resend/SendGrid/Mailgun), BYO-Storage, and BYO-LLM keys.
Explore the complete feature-by-feature testing script, performance latency benchmarks, and failure mode verification checklist.
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