Buildventory

Overview

Buildventory is an operations platform for new-home builders: inventory (projects, units, floorplans), deals with deposit schedules and worksheets, holds and reservations with expiry, commissions, an options and upgrades configurator with a rules engine, and an availability board that draws the building as a stacking elevation with keyboard-navigable unit chips. A unit can never be double-sold. The onboarding is the standout part: AI onboarding is the acquisition flow. Drop a real price sheet or unit tracker, CSV, Excel, or PDF, and a worker pipeline parses it with per-field confidence scores, asks a few gap questions, and seeds your account with your actual data.

Technical Challenges

• Onboarding from arbitrary price sheets means parsing wildly inconsistent spreadsheets and PDFs into a consistent data model, and knowing which parsed fields to trust versus flag for a human to confirm.
• Letting an AI agent seed a live account with real data demands the same audit trail and guardrails a human action would get, not a shortcut around them.
• A stacking-elevation availability board with keyboard-navigable unit chips has to stay accurate in real time as holds expire and units move between available, held, and sold.
• Every command in the system, whether triggered by a person or an agent, needs to run through the same validation, policy, and audit path, without maintaining two parallel code paths for “human” and “AI” actions.

Solution

• A Turborepo monorepo: Next.js for the web app, Fastify for the API, a dedicated MCP server, and a BullMQ worker for the parsing pipeline, all on Postgres 17 and Redis.
• A single command registry holds all business logic, each command defines its Zod input schema, policy, and handler, and is exposed identically through the REST API and an OAuth-protected MCP server, so an AI agent can do exactly what a user can do, nothing more.
• Every command execution is recorded as an ActivityEvent with full provenance, AI-issued commands are tagged actorType ‘ai’, with read-only versus full-access controls to scope what an agent is allowed to touch.
• The onboarding worker pipeline parses uploaded CSV, Excel, or PDF price sheets and unit trackers field by field, attaching a confidence score to each, then asks the builder a short set of gap questions before seeding the account.
• Better Auth handles authentication with 2FA/TOTP, an org switcher, and a command palette, deposit schedules, holds with expiry, and commissions run on the same command registry as everything else.

Key Features

• AI onboarding as the acquisition flow: drop a price sheet or unit tracker (CSV, Excel, PDF) and get a seeded account, not a blank one
• Worker pipeline parses uploads with per-field confidence, then asks gap questions before seeding
• Single command registry powers both the REST API and an OAuth-protected MCP server, so an agent can do anything a user can
• Every action recorded as an ActivityEvent with full provenance, read-only vs full-access controls
• Availability board draws the building as a stacking elevation with keyboard-navigable unit chips
• A unit can never be double-sold
• Options and upgrades configurator with a rules engine
• Deposit schedules, worksheets, holds/reservations with expiry, commissions
• Free to start, plans from $99/month