cx-cost-to-servelisted
Install: claude install-skill rulebase-co/rulebase-skills
# Cost to serve
Cost per contact is the number that unlocks budget and justifies automation, which is
exactly why it is usually built to reach a conclusion. The two failure modes are a
denominator chosen to flatter and a savings claim that counts money nobody will stop
spending.
## Build the cost base explicitly
State what is in and what is out. The number varies by a factor of two or more
depending on this, so a cost per contact quoted without its basis is not comparable to
anything.
- **Fully loaded agent cost** — salary, employer taxes, benefits, and the paid time not
spent on contacts (training, meetings, breaks, absence). Using base salary alone
understates by a large margin.
- **Supervision and support** — team leads, QA, workforce management, training.
Typically a meaningful share and usually forgotten.
- **Technology** — helpdesk, telephony, per-seat licences, AI or bot spend.
- **Facilities and equipment**, or the remote-work equivalent.
- **Vendor fees** for outsourced volume, on whatever basis the contract uses — which is
often per-contact or per-hour and therefore not directly comparable to internal
fully-loaded cost. Normalise before mixing.
Say which are included. "Agent cost only, excluding supervision and technology" is a
fine basis; an unstated basis is not.
## Get the denominator right
- **Count customer contacts, not tickets.** Transfers and reassignments create records,
not contacts. If one customer issue produced three tickets, the cost