Steel Craft Builders: A Dual-Interface AI Knowledge System With 120+ Docs and Zero Hallucinations

Steel Craft Builders · Pre-Engineered Metal Buildings

The Challenge

Before the AI system was deployed, almost all knowledge at Steel Craft Builders lived in the founding team's heads. Every question answered was time taken away from running and growing the business.

Steel Craft Builders operates in the competitive pre-engineered metal building market, a technical, specification-heavy industry where accurate information and responsive service determine project wins. As the business scaled, knowledge became a bottleneck, and the company's ability to grow was constrained not by the size of the opportunity but by its team's capacity to answer the same questions repeatedly.

Operating Context

High technical specification complexity per project
Multiple states, each with different building codes
New hire onboarding dependent on founding team availability
Field teams needing mobile SOP access on active job sites

Key Challenges Faced

No 24/7 Customer Support: Customers waited on staff for basic technical answers with no support outside business hours.
No Field-Accessible Procedures: Field teams phoned the office for SOP and regulatory guidance, consuming senior staff time.
Knowledge Walked Out the Door: When experienced staff left, their knowledge left with them, with no version control or documentation.
No Documented SOPs to Train From: New hires relied entirely on founders for guidance.
State Regulation Inconsistency: Building code answers came from individual expert memory, unverified and potentially outdated.

The Solution

TekConnected built a dual-interface AI knowledge system. Instead of treating knowledge as a manual staff task, it was externalised into a permanent, always-on system.

The Two Interfaces and the Knowledge Engine

WordPress Customer Chatbot: Embedded in WordPress. Answers questions on building types, panels, colours, and state regulations, and captures and routes leads 24/7.
Slack Agent for Internal Staff: Slack agent for SOP lookup, regulatory queries, and Gmail, Calendar, and Monday.com task execution, accessible from any device.
Supabase Vector Database: 120+ vectorised documents, auto-synced from Google Drive. Responses are grounded entirely in Steel Craft Builders' own documentation.

Document Pipeline and Knowledge Architecture

TekConnected audited the entire knowledge lifecycle covering tribal information, SOPs, product specs, and state regulations, and identified where AI retrieval should replace manual answering
All knowledge is chunked at 2,000 characters with 200-character overlap

Google Drive as the Source of Truth

All documents including internal SOPs, product specs, and state regulations are managed through Google Drive
The system detects updates automatically and re-indexes within 2 minutes
Version control is built in, so the AI never references outdated content

n8n as the Orchestration Control Layer

Monitors Google Drive folders and processes document changes
Routes queries between the two interfaces
Executes Gmail, Calendar, and Monday.com tasks from Slack
Runs 15 automated workflows continuously

Multi-LLM Verification

Claude Sonnet 4.5 powers the primary agent. GPT-4o provides cross-verification on technical and regulatory responses. Conflicting outputs are flagged, not guessed. The underlying principle is that knowledge should be system-owned, not individual-dependent.

Technology Stack

Google DriveSupabasen8nWordPressSlackAnthropicOpenAI

Results & Outcomes

24/7 Customer Knowledge Access: Zero staff required to respond.
120+ Docs: Vectorised and available across both interfaces from day one.
0 Hallucinations: The AI answers only from Steel Craft Builders’ own documents and never guesses.
Under 2 Minutes: From a document updated in Google Drive to live in the knowledge base.
5 Platforms Connected: WordPress, Slack, Gmail, Calendar, and Monday.com.

Strategic Impact

Tribal knowledge externalised and owned by the organisation, not any individual.
New hires query Steel Craft Builders’ own documents from day one via Slack.
Field teams access SOPs and regulatory guidance from their phones on any job site.
The website chatbot handles enquiries at any hour, capturing leads outside business hours.
Dual-LLM verification removes the risk of a single model’s confident mistake on regulations.
Foundation in place for AI call preparation summaries, project briefings, and a Launchpad UI.