vertical-home-services

# Home & field services — spec it like a trades shop runs HVAC, plumbing, cleaning, landscaping. A crew of techs in trucks, jobs on site, money quoted at the kitchen table. A builder who models this as "appointments + invoices" ships something no contractor will use. This skill is the domain briefing so the spec is right before code starts. ## 1. Domain vocabulary (know these or look naive) - **Price book** — the master catalog of priced tasks ("replace 40-gal water heater = $1,850"). Pricing is *looked up*, not computed hourly. - **Flat-rate vs T&M** — flat-rate (one price from the price book, parts + labor bundled) is the norm in the trades. Time & materials (T&M, billed by the hour + parts) is the exception, used for diagnostics or open-ended jobs. Build for flat-rate first. - **Dispatch board** — the live grid of techs × time slots the office uses to assign and re-shuffle jobs through the day. - **Truck roll** — sending a tech to a site. Every truck roll has a real cost; minimizing wasted rolls is the whole game. - **First-time fix rate** — % of jobs completed on the first visit. The north-star ops metric. Low fix rate = repeat rolls = lost margin. - **Callback** — a return visit because the first fix failed. Tracked and hated; ties to warranty. - **Membership / service agreement** — recurring plan (e.g. 2 tune-ups/yr for $19/mo) that creates predictable revenue and priority booking. A core business model, not a loyalty gimmick. - **Good-better-best...