The Discipline of Certainty

Stop guessing.
Start shipping.

Three connected systems for finding the right problem, building the system that solves it, and writing the words that ship it.

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How It Fits Together

Certainty, in three parts.

Each system is built to work alone — but they're cross-referenced section by section, so a validated opportunity flows straight into a component spec and its copy, instead of three disconnected toolkits.

Discover

Know before you build.

Signal collection, interviews, opportunity trees, and evidence-based prioritization before a single feature gets built.

Design

Build it once, right.

Tokens, components, and governance that scale — so the visual layer doesn't rot as the product grows.

Write

Say it so it's heard.

Voice, tone, and microcopy treated with the same rigor as the components they live inside.

The Anatomy of a System

Every stage, accounted for.

Discovery, design, and content move through the same lifecycle in parallel — lock the foundation, build with an agent at your side, review before shipping, then govern as it scales.

FoundationBuildReviewScale
Signal collectionCollect raw evidence
Discovery agentGuides research & synthesis
Opportunity reviewStructure & prioritize
Workshop & roadmapScale across the team
Tokens & namingLock the foundation
Architect agentGuides component build
System reviewCritic, a11y, platform checks
GovernanceOnboard & scale safely
Voice & toneLock the foundation
Writer agentDrafts on-voice copy
Content reviewReviewer, localization checks
Content governanceTrack debt, scale voice
Discovery maturity modelDiagnose your stage, anytime
Design maturity modelMirrors the same four stages
Content maturity modelMirrors the same four stages
Discovery track Design system track Content track
🚀
Product Discovery OS

Ideas are cheap.
Evidence isn't.

★★★★★

Research users, validate ideas, and prioritize with evidence — a complete discovery system with signal collection, opportunity trees, and a Miro-ready workshop guide.

  • 26-page Field Manual — step-by-step, file-by-file, zero guesswork
  • 11 frameworks incl. Signal Collection & Discovery Maturity Model
  • 58 AI prompts across 7 categories
  • 6 AI agent contexts
  • Notion workspace + Miro/whiteboard guide
  • SaaS, FinTech & EdTech worked case studies
Free
$0
  • Quick-start checklist
  • Non-commercial use
Get free
Commercial
$49
  • Everything included
  • Client, team & startup use
Buy
🛸
Design System OS

Consistency isn't decoration.
It's trust.

★★★★★

Tokens, components, and governance that actually scale — built from real experience running a design system across many teams and products.

  • 19-page Field Manual — step-by-step, file-by-file, zero guesswork
  • 4 frameworks (Tokens, Naming, Maturity Model, Governance)
  • 40 AI prompts across 8 categories
  • 6 AI agent contexts
  • Figma implementation guide + Notion workspace
  • Real-world case study, 8 teams / 15+ products
Free
$0
  • Quick-start checklist
  • Non-commercial use
Get free
Commercial
$59
  • Everything included
  • Client, team & startup use
Buy
🪶
UX Writing OS

Every word
is a decision.

★★★★★

The content layer for Design System OS — voice, tone, and microcopy treated as a scalable system, with 8 real before/after rewrites.

  • 18-page Field Manual — step-by-step, file-by-file, zero guesswork
  • 4 frameworks (Voice & Tone, Principles, Patterns, Maturity Model)
  • 65 AI prompts across 12 categories
  • 4 AI agent contexts
  • 6 markdown templates + Notion workspace
  • Cross-Reference Map to Design System OS
Free
$0
  • Quick-start checklist
  • Non-commercial use
Get free
Commercial
$29
  • Everything included
  • Client, team & startup use
Buy
💎
Product Design OS Bundle

One question.
One answer.

Every framework, prompt library, and agent from all three systems — plus the Cross-Reference Map connecting them section by section. Buy separately and you get three toolkits. Buy the bundle and you get one workflow.

  • All 3 systems: Product Discovery, Design System & UX Writing OS
  • 163 AI prompts combined
  • 16 AI agent contexts
  • 3 full Notion workspaces + Figma & Miro guides
  • Cross-Reference Map connecting every piece
One bundle, everything included
$137
$95.90
Save 30%
  • Client, team & startup use across all three
  • Lifetime updates on all three systems
Get the bundle
Nobody gets left behind

63 pages of zero guesswork.

Every system ships with its own Field Manual — a complete beginner-friendly walkthrough, file by file, so a total newcomer can run the whole thing without asking anyone a single question.

🚀 26 pages

Discovery Field Manual

  • All 11 frameworks — File, Purpose, Example, AI Support, Definition of Done
  • How to use 58 prompts, 6 agents, Notion & Miro
  • Visual flow diagrams — no ASCII arrows
  • The Evidence Ladder & the Promotion Threshold
  • A 14-day plan and a quick-navigation table
🛸 19 pages

Design System Field Manual

  • All 7 frameworks, walked through step by step
  • How to use 40 prompts, 6 agents, Figma & Notion
  • Visual flow diagrams — no ASCII arrows
  • The Token Ladder & the Governance Gate
  • A 14-day plan and a quick-navigation table
🪶 18 pages

UX Writing Field Manual

  • All 6 frameworks, walked through step by step
  • How to use 65 prompts and 4 agents
  • Visual flow diagrams — no ASCII arrows
  • The Clarity Ladder & the Review Gate
  • A 14-day plan and a quick-navigation table

Buy the bundle, get all three — 63 pages, one shared vocabulary, zero onboarding calls.

🎨

Free templates. Free plugin.

Hapix Lab keeps a free Figma Community profile — starter templates you can duplicate straight into your files, and a template-builder plugin to speed up your own work. No purchase required.

Visit Figma Community
Questions

Before you ask.

What format are the files in?+
Markdown (.md) for every framework, prompt, template, and agent context — plus a PDF quick-start checklist and step-by-step Notion setup guides. Markdown opens anywhere: a text editor, Notion, Obsidian, or straight into an AI chat.
How do I use this with Claude, ChatGPT, or other AI tools?+
Paste an agent context in as your system/starting message, or copy a prompt directly into your chat and fill in the bracketed fields. Everything is written to work with any capable AI assistant — Claude, ChatGPT, Gemini, or Cursor.
What's the difference between the pricing tiers?+
Free is a non-commercial preview. Commercial unlocks everything for client work, team use, startups, and workshops. Both tiers include the same content — the difference is licensed scope of use.
Do I get future updates?+
Yes — buy once, get all future updates for that product at no extra cost. Each product ships with a changelog so you can see exactly what's changed between versions.
Can I use this for client or agency work?+
Yes, on the Commercial tier — it covers client projects, internal team use, startups, and workshops. The Free tier is non-commercial only.
Is there a discount for buying more than one?+
Yes — the Product Design OS Bundle includes all three systems together for $95.90 instead of $137 separately (30% off), as a single purchase.
Do you have any free resources?+
Yes — Hapix Lab maintains a free Figma Community profile with templates and a template-builder plugin at figma.com/@hapix. New releases are also announced first on Instagram and X.
What if it's not right for me?+
Refunds follow Gumroad's standard policy — check the product page at checkout for current details.