Rafael Rabelo

AI-powered WhatsApp service, qualification and follow-up — 24/7

Problem

Leads arriving on WhatsApp at any hour with no qualification, no CRM record and no consistent follow-up — pipeline silently evaporating.

Solution

Multimodal n8n agent (text, audio via Whisper, image via Vision) with a Redis message buffer, Postgres chat memory and Supabase lead registry. Qualifies consultatively, moves Kommo stages and tags, uses dedicated tools (qualification, name update, human handoff) and emits funnel events to the dashboard. Cascading follow-ups (10 min → 14 days) auto-close silent conversations and resume them when the lead replies.

Result

Live across multiple client operations; 24/7 service with AI→human handoff and an end-to-end tracked funnel.

Real-time funnel of AI-handled conversations

Problem

Managers had zero visibility into what the AI agents were doing in the funnel — conversations, qualifications and follow-ups were invisible.

Solution

Dashboard fed by n8n workflow events through an edge function authenticated with a per-client token (lead_created, conversation_started, lead_qualified, followup_sent, deal_won…). KPIs, conversion funnel, per-lead timeline, sales leaderboard and goals with celebrations.

Result

Generic event contract: each new agent plugs into the dashboard with 3 emitter workflows pointing at the same endpoint.

Scheduling and knowledge agent for a salon

Problem

Salon needed 24/7 service and scheduling without blowing up API cost and latency.

Solution

Hybrid RAG: static info served from a vector store, live API reserved only for scheduling. Daily embedding ingestion cron and AI→human handoff. Reverse-engineered an undocumented third-party API (Cognito auth, report endpoints).

Result

Migrated 20 professionals, 224 services and 500 clients to the new schema; cut response latency and cost.

End-to-end GTM automation on Pipedrive/Kommo

Problem

Sales team lost pipeline due to missing cadence, follow-up and post-call context.

Solution

Stage-based activity cadence with rollback, AI follow-up, Whisper call summaries logged to deals, candidate screening into ClickUp, and Meta Lead Ads ingestion with segmented WhatsApp dispatch.

Full personal-finance web app in production

Problem

Scattered personal finance management with no API for automation.

Solution

Full app: recurring expenses, installments, goals, BCB rate sync (CDI/Selic/IPCA), investment simulator, and a versioned REST API with API keys consumed by external n8n automation.

Semantic search with AI visual verification

Problem

3D model archives scattered across ~60 Telegram groups, impossible to search.

Solution

Search engine fusing fuzzy + vector search over 1,266 indexed libraries, with GPT-4o Vision visual verification before confirming a match and on-demand download.