The New SDLC with Vibe Coding — Full Summary & Cheat Sheet
A plain-English summary of Google's June 2026 report, plus the practical cheat sheet to apply it today in Cursor, Claude Code and Windsurf.
What the report actually says
The core claim: AI coding has split the development lifecycle into two modes. "Vibe coding" — describing what you want and letting the agent write it — is superb for exploration and prototypes. But production software needs "agentic engineering": the same AI speed, wrapped in specs, rules and review so the output is correct, secure and maintainable.
The three big shifts
1. Prototype → Production is a discipline gap
The first 80% is fast because changes are local and fit in context. The last 20% fails because the agent loses the whole-system view.
2. Specs beat prompts
A PRD and an architecture doc the agent must read outperform clever one-off prompts. Structure, not wording, is what keeps it on track.
3. The human becomes the reviewer
You stop typing code and start reviewing diffs, enforcing guardrails, and catching the security shortcuts the agent takes silently.
4. Rules are the new memory
Rule files (.cursorrules, CLAUDE.md) keep the agent's architecture "memory" fresh across a growing codebase.
The cheat sheet — apply it today
- Write a one-page PRD and an architecture doc before prompting.
- Pin your stack and folder layout in a rule file; forbid new frameworks.
- One vertical slice per task — never "build the app".
- Make the agent state its plan before writing code.
- Force auth checks, Zod validation and RLS — the agent skips these by default.
- Payments change state only via verified, idempotent webhooks.
- Review every diff like a senior engineer; run a ship checklist before launch.
Want it done for you?
The Vibe-to-Production Kit packages all of this — the rule files, a build-tested boilerplate, and the full playbook — for Cursor, Claude Code and Windsurf.
Get the kit — $19