The Company
Serenica Digital set out to build a CRM for small businesses that already live in spreadsheets. Instead of building another app, they built an agent. A client brings the spreadsheet their business runs on, a Hermes Agent interviews them inside an Excel task pane, and that spreadsheet becomes a published, versioned semantic contract. Day to day, a second agent takes plain language, like "just closed the deal with Carter," and turns it into proposed changes the user confirms with a tap.
The product is called Cormac, and every change runs through one pipeline: capture, proposal, confirmation, atomic apply, append-only audit. One writer, locked down.
The Challenge
The hard part was not the agent design. It was doing all of it, build through security audit, without spinning up infrastructure somewhere else. A multi-service platform normally means standing up clusters, wiring CI, managing secrets, and building an auth layer before the product work starts. Serenica wanted the whole lifecycle, development, deployment, and production runtime, on one platform they did not have to operate.
The Solution
Cormac runs as four services on a single Orion project: a Node and TypeScript trust-layer backend that is the only thing allowed to write business records, a React web surface, and two Hermes Agent profiles from one runtime. The authoring agent keeps skills on, because the client interview is a skill, with strict write-approval gates. The operations agent runs with skills off, terminal off, and typed tools only, because it handles data access.
Deployment is three vanilla Helm charts, no custom CRDs and no platform-specific operators, packaged as a native Orion plugin with two Secrets as the only external inputs. The same charts run unchanged on a local kind cluster, on Orion, and on EKS. Orion is a swappable substrate, not a lock-in.
Everything lives in one Orion project namespace: pull secrets created before any workload, runtime secrets injected at deploy time and never hardcoded, and workspace-scoped agent tokens, hashed at rest and revocable.
The Results
The complete multi-agent SaaS platform runs in roughly 650 millicores of CPU and about 2Gi of RAM. Serenica's production numbers: an authoring interview costs about fifty cents at a high prompt cache hit rate, and a day-to-day capture costs about a cent and a half at an 82% cache hit rate.
This is not a demo. Cormac ships with settled architecture decisions, typed plugin tools, workspace-scoped tokens, row-level isolation, and an audited security control register. Code to production on one platform, with no infrastructure complexity beyond what is in the repo.
AT A GLANCE
FIELD
AI Agent Development
DEPLOYMENT
Customer-hosted
ABOUT
Serenica Digital is a small product team building Cormac, a contract-first CRM agent platform for small businesses that still run their operations on spreadsheets.
