Engineering Playbook
Published May 2026
Complete AI engineering system: 23 specialist skills + 8 tools in a proven sprint workflow. Think, plan, build, review, test, ship, reflect.
Run this command to deploy the playbook to your environment.
YC-style product interrogation and multi-layer planning. Five skills that challenge assumptions, rethink scope, and build consensus before you write a line of code.
Four complementary design skills: system design, visual exploration, code generation, and live-site audits. From concept to shipped HTML in one workflow.
Structural code review with bug-finding, security audits, and independent second opinions from multiple AI models.
Release engineering automation: test bootstrap, coverage audits, PR creation, merging, deploying, and production health verification.
Persistent memory for learned patterns, session state restoration, team retros, and developer profile tracking.
Four safety skills, a real browser launcher, and self-upgrade capability.
Optional persistent knowledge base for semantic code search and cross-machine memory sync.
You're shipping more products than ever, but the process is chaotic. Without structured workflows, AI agents hallucinate, introduce bugs, and skip testing. Without guidance, they treat your code like a blank canvas instead of respecting existing patterns. You need a system that turns Claude Code into a virtual engineering team.
Step 1 using Claude
Step 2 using Playwright
Step 3 using Bun
Step 4 using Git
Step 5 using Chromium
Step 6 using Supabase
Step 7 using Grain
Step 8 using OpenAI Codex
Step 9 using Conductor
After you install gstack, every Claude Code session loads 23 specialist skills organized as a sprint: `/office-hours` reframes your product idea, `/plan-*` skills lock in architecture and design, `/review` finds production bugs before they ship, `/qa` tests with a real browser, `/ship` deploys with confidence. Each skill feeds into the next. Nothing falls through the cracks.
Run 10+ parallel product sprints at once, shipping complete features with architecture, design, testing, and QA—all from one workflow.
Requires Claude Code (not just Claude API). All 23 skills run as slash commands in Claude Code context. gstack is opinionated—it enforces testing, security reviews, and structured planning. If you prefer ad-hoc prompting, this will feel prescriptive. Parallel sprints scale to 10-15 at a time with Conductor; beyond that you manage context switching manually.
Written in TypeScript/Bash. Browse daemon uses Playwright + Chromium (auto-detects Bun or falls back to Node.js; Windows requires both). GBrain integration is optional (local PGLite or remote Supabase). Telemetry is opt-in, zero code/paths sent. Supports Claude, Codex, OpenCode, Cursor, Factory Droid, Slate, Kiro, Hermes, GBrain via a single `./setup` script.
Sprint Workflow
23 specialist skills organized as a complete sprint: product ideation, planning (CEO/eng/design/DX), code review, QA, deployment, and retrospectives. Each skill feeds into the next with zero manual handoff.
Real Browser Testing
Persistent Chromium daemon (`/browse`) with 100+ commands: navigate, fill forms, take screenshots, check console, verify state. ~100ms per command. Browser state persists between calls.
Production-Ready QA
`/qa` systematically tests your app: reads git diff, identifies affected pages, finds and fixes bugs with atomic commits, auto-generates regression tests.
Multi-Layer Review
`/review` finds bugs that pass CI but fail in prod. `/codex` brings independent perspective from OpenAI. `/cso` runs OWASP + STRIDE security audits. Cross-model findings for high confidence.
Design System & HTML
`/design-consultation` builds design systems from scratch. `/design-shotgun` generates 3+ visual variants with taste memory. `/design-html` renders production HTML with Pretext for responsive layouts.
Signal-based selling expert achieving 35-40% reply rates by targeting in-market accounts across 9 signal types.
n8n automation expert for building production-grade GTM workflows—Clay integration, CRM routing, error handling, and self-hosting.
B2B list builder expert for defining ICP, sourcing 100K+ emails/month, and validating data across multiple sources.