Integration one works as worker code; integration three is an accidental monolith. The split that fixed it: CRM choreography in platform flows, semantic mapping in our product, thin workers, and sync direction as config instead of architecture.
Zac Sheffer · 7 min
In a production dry run on 8,600 open deals, 87 percent resolved with zero tokens and only 223 earned an agent run. Three triage layers: a zero-LLM programmatic path, trigger rules that need evidence in pairs, and a re-run gate that humans reset.
Zac Sheffer · 7 min
Howie has no partner API, no OAuth, no webhooks. The entire integration is one CC’d email address, a Nylas send, and a calendar matcher. Here is the architecture and why it is the right call.
Ale Moretti · 8 min
Kai's deal agent is a five-stage pipeline where model output never reaches the database without deterministic gates. Required-plus-nullable Zod schemas, a policy layer that trusts nothing, a cheaper model judging the first, and dedup with opinions.
Zac Sheffer · 8 min
Pass-1 scored above ~96% on Braintrust, then lost to an agentic tool loop. Real generateText + stopWhen, Slack handoff routing, mutation caps before the model, and why we deleted the intent LLM.
Guilherme Barroso · 8 min
What Zero CRM is and how we built our Zero CRM integration: a sync that fails closed, never guesses matches, and keeps referral attribution intact.
Zac Sheffer · 8 min
Commission math looks like one multiplication. Then come the tiers, the waterfalls, the recurring trails, and the invoice that already went out. Five design decisions behind Introzy's fee engine — with real code and the production bug that taught us dedup keys need a period.
Zac Sheffer · 11 min
How Introzy turns a Zoom recording into CRM context: thin webhooks, a two-stage calendar matcher with a 15-minute window, private R2 transcripts with a 90-day TTL, and one idempotent in-app notification.
Guilherme Barroso · 7 min
Some import failures should fix themselves. Others are the system admitting it doesn't know enough to decide safely. How we think about automating failure recovery without quietly making the wrong call on someone's data.
Jasmine Frantz · 6 min
Most CRM imports treat CSV parsing as the challenge. We rebuilt ours around a different idea: importing is an onboarding problem. Here's the actual pipeline: three mapping signals, an agreement gate, real confidence thresholds, and a diff that runs before a single write.
Jasmine Frantz · 9 min
How we use version-controlled Markdown commands to keep AI-generated code quality high: the actual two-pass verification pipeline, and two real production near-misses that shaped it.
Matthew Watson · 8 min
We're starting an engineering blog. Here's why, what we'll write about, and a full tour of the monorepo that powers Introzy.
Zac Sheffer · 7 min