Product Design Case Study · AI Interface

D.AI

The AI That Becomes You.
RoleProduct Designer
ScopeResearch · UX · AI Product · Prototype
Duration2025
StackReact · Claude Sonnet 4.5 · Figma
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Overview

Adaptive AI that transforms its entire UI based on your profession.

D.AI is not a chatbot skin. It's a profession-aware AI operating system — with curated personas for top professions, each with a unique theme, dedicated agents, contextual integrations, and smart prompt starters. Plus a custom AI-generated persona for any role not listed, powered by D.AI's model layer.

Every element transforms: color, typography, particle effects, search placeholders, agent configurations, tool connections, and chat behavior. The lawyer doesn't see the same interface as the engineer. Because they shouldn't.

Professions Supported
6
Top Profession Categories
12
Professionals Interviewed
Custom AI Persona Generation
The Problem

AI is powerful.
But it speaks to no one.

From research across 12 professionals in 6 domains, three problems emerged consistently:

"Too many new agents, too much new language, too many plugins. Basically — using AI is confusing for some."

The Problem

  • Every model release adds new terminology that professionals can't keep up
  • "Did you ever get confused with the interface or language?" — Yes, overwhelmingly across all professions
  • A surgeon opens the same blank box as a comedian — AI doesn't know who you are

The Solution

  • Profession = Identity — select your profession, entire UI transforms
  • Agents + Prompts = Speed — Pro Agents pre-loaded, Smart Prompts pre-written
  • Integrations = Workflow — each persona connects to profession-specific real tools

"Solution → A dedicated persona & a dedicated agent for that persona. The AI agent adapts with the user's memory over time."

73%
of knowledge workers say AI feels generic for their role
12
professionals interviewed across 6 domains
Research

12 questions. 12 professionals.
6 domains.

Every idea was handwritten before a single line of code. I interviewed friends and colleagues across professions — engineers, designers, lawyers, doctors, analysts, educators — to understand how AI fails them today.

Q1
Usage
What AI tools do you use regularly?
Q2
Context
What is your profession and daily workflow?
Q3
Usage
For what tasks do you use AI most often?
Q4
Plugins
Do you use plugins, agents, or custom GPTs?
Q5
Pain
Have you ever felt confused by the AI interface or its language?
Q6
Pain
When you open AI, do you feel it truly understands your profession?
Q7
Pain
Do you feel you can't communicate with AI properly for your work?
Q8
Literacy
What do you know about prompts? Do you use them?
Q9
Trust
How do you feel when a new update launches and you don't know if it's relevant?
Q10
Vision
What would an ideal AI look like for your specific role?
Q11
Prototype
How did you feel using the D.AI prototype?
Q12
Prototype
Which feature excited you most — and why?

The notebook that started everything.

Mapped the full user journey, integration architecture, persona list, and feature set — all by hand before any prototype was built.

Problem & Solution Notes
Page 1 · Problem & Solution
Persona Mapping
Page 2 · Personas & Business Model
Integration Mapping
Page 3 · Contextual Integrations
Interview Questions
Page 4 · Interview Questions
IA / User Flow
Page 5 · Information Architecture
System Prompt Engineering
Page 6 · Technical Research
Wireframe Sketches
Page 7 · Wireframes
Wireframe Sketches
Page 8 · Wireframes
Information Architecture

The happy path.

"I guess I can call this Happy Path."

— Notebook, Page 6
Entry
D.AI Landing
Universal search bar. Clean & minimal.
🔍
Universal
Search + AI Agent
Ask anything, any topic. Works like a standard AI chatbot.
Select
Persona
Choose a top profession or type any role. Entire UI transforms instantly.
Transform
Dedicated AI Agents
Pro agents, smart prompts, tools — all pre-configured.
🔗
Connect
Integrations
Profession-specific tools: GitHub, Westlaw, Epic, Bloomberg.
Feedback Loop

What this actually looks like — Engineer workflow.

A step-by-step walkthrough of a real task, from persona selection to synthesized output.

01
User selects Software Engineer persona
From the landing page — one click. The entire interface begins to transform.
02
GitHub, Vercel, Docker integrations appear automatically
No plugin hunting. The tools an engineer actually uses are pre-connected and ready.
03
Smart Prompts surface engineering-specific tasks
"Review this PR for bugs," "Write Jest tests," "Explain this stack trace" — no blank slate.
04
User runs the Code Review agent
Clicks "Review this PR for memory leaks" — a pre-engineered prompt that triggers the right agent.
05
Orchestrator dispatches sub-agents in parallel
Memory Profiler scans for leaks. Code Analyzer checks patterns. Fix Suggester drafts solutions. All at once.
06
D.AI returns a structured code review
"Found 2 issues in allocFn() — memory not freed on error path. Lines 84 & 102. Recommend try/finally." One synthesized answer from multiple agents.
Total time: seconds
From persona selection to structured output — no prompt engineering, no plugin configuration, no agent setup. The user typed nothing. They clicked twice.
Before / After

The blank slate problem — solved.

"Pre designed or written prompts."

— Wireframe sketch, Page 5
Before · Generic AI

Ask anything...

Ask anything...
  • User opens interface
  • Stares at blank input box
  • Struggles to phrase a prompt
  • Types, deletes, rephrases twice
  • Gets a mediocre answer
  • After · D.AI Engineer Persona

    What will you build today?

    +   Ask anything or pick a smart prompt ↓
    Code Review
    Debug AI
    Doc Writer
    Test Gen
    Review this PR for bugs
    Write unit tests for this module
    Explain this stack trace
    Draft a tech spec
    Smart Prompt Starters

    Every profession gets prompts that speak its language.

    { } Software Engineer
    Review this PR for memory leaks
    Write Jest tests for this module
    Explain this stack trace
    Draft RFC for this API endpoint
    Corporate Lawyer
    Draft NDA for SaaS partnership
    Review liability clauses here
    Summarize this deposition
    Flag GDPR risks in this doc
    Product Manager
    Write a PRD for this feature
    Prioritize this backlog
    Draft OKRs for Q3
    Summarize user research notes
    Physician
    Summarize this clinical study
    Check drug interaction risk
    Draft patient discharge note
    Review differential diagnosis
    Contextual Integrations

    Each persona connects to the tools they already use.

    "Tech guy → code direct push to Git/Docker. Design guy → screens to Figma/Miro. Lawyer → connects to Westlaw/LexisNexis."

    — Notebook, Page 3
    { } Software Engineer
    GitHub
    Vercel
    Jira
    Docker
    GitLab
    Designer
    Figma
    Miro
    FigJam
    Loom
    Zeplin
    Corporate Lawyer
    Westlaw
    LexisNexis
    Clio
    DocuSign
    Relativity
    Physician
    Epic
    PubMed
    UpToDate
    Doximity
    Athena
    Financial Analyst
    Bloomberg
    Refinitiv
    Salesforce
    Tableau
    QuickBooks
    UI Design — Screens

    Universal landing. Persona transformation.
    Browse all.

    d.ai
    +
    What can I help you with today?
    Popular Personas
    §
    Explore more professions →
    Type any profession...
    Generate ✦
    Landing Page
    d.ai/engineer
    What will you
    build today?
    Pro Agents
    ◉ Code Review
    ◉ Debug AI
    ◉ Doc Writer
    ◉ Test Gen
    ✦ Smart Prompts NEW
    Review this PR for bugs
    Write unit tests
    Explain stack trace
    Draft a tech spec
    Integrations
    GitHub
    Vercel
    Jira
    Figma
    Slack
    +
    Ask anything or pick a smart prompt ↓
    Live Preview
    Review this PR for memory leaks
    Found 2 issues in allocFn() — memory not freed on error path. Line 84 & 102.
    500M+ lines of production code trained
    Orchestration
    Request → Intent → Dispatch → Synthesize
    Intent Decompose Dispatch Synthesize
    Active Agents
    Code Review
    Debug AI
    Doc Writer
    Test Gen
    Switch Persona
    §
    +
    ◈ Universal Search
    Persona Page — Engineer
    d.ai — browse all

    Choose Your Profession

    Technology
    Tech / Engineer
    Data Scientist
    Cyber Security
    Civil Engineer
    Creative
    Designer
    Photographer
    Film Maker
    Musician
    Architect
    Art
    Professional Services
    Lawyer
    Financial Analyst
    Consultant
    Marketer
    HR & Recruiter
    Startup Founder
    Healthcare & Science
    Doctor
    Pharmacist
    Veterinarian
    Researcher
    Therapist / Coach
    Operations
    Supply Chain
    Construction Mgr
    Restaurant / Hotel Mgr
    Chef
    Impact
    Educator
    Journalist
    Social Worker
    NPO / NGO
    Type any profession...
    Generate with AI ✦
    Explore Professions
    Agentic AI — Technical Architecture

    The technical reality behind D.AI's personas.

    Each persona in D.AI is a pre-configured AI agent. Here is exactly what that means under the hood:

    "Basically a JD for AI agents — what the agent is (role, persona, expertise), what it should & shouldn't do, how it behaves at edge cases, what tone, format & style to use."

    — Notebook, Page 7 · System Prompt Engineering
    🧠
    01
    The Model (Brain)
    D.AI's model powers reasoning. Reads the situation, decides what to do next at every step.
    🔧
    02
    Tools (Hands)
    Without tools, models only generate text. Tools let agents act — search, code exec, API calls.
    💾
    03
    Memory
    In-context window, external database, episodic history. Agents remember across steps.
    🔄
    04
    The Loop (ReAct)
    Observe → Reason → Act → Repeat. Agents loop until the goal is done.
    📋
    05
    System Prompt
    The agent's job description — role, expertise, guardrails, tone, edge cases.

    D.AI abstracts all of this.

    01
    You select a profession — Lawyer, Engineer, Doctor...
    02
    System prompt loads silently — role + expertise + guardrails pre-written
    03
    Tools are pre-assigned — Westlaw for lawyers, GitHub for devs
    04
    Memory is pre-configured — no user setup required
    05
    Smart Prompts appear — pre-engineered triggers, ready to click

    "Building & configuring an agent requires knowing what tools to give it, how to write a system prompt, what memory it needs. D.AI abstracts all of that. The lawyer just picks 'Lawyer' and it's done."

    Multi-Agent Orchestration

    One goal. Many agents.
    One answer.

    When you send a request, D.AI's Orchestrator reads intent, decomposes the task into subtasks, and dispatches specialist agents in parallel. They report independently. It synthesizes one clean answer.

    U
    "Do a full review of this contract"
    01

    Orchestrator receives & classifies

    Reads task. Decides: complex multi-part → 3 agents needed in parallel.

    02

    3 specialist agents fire simultaneously

    Risk Flagging · Compliance AI · Contract AI — all run at once. No sequential blocking.

    03

    Each agent reports independently

    Results returned to Orchestrator. It reads all outputs, resolves conflicts.

    04

    Synthesized answer delivered

    One unified response: risks ranked, gaps listed, redlines ready.

    Risk Flagging

    Scans 47 clauses for liability exposure

    → 4 high-risk: §7.2 §11 §14 §19
    Compliance AI

    Cross-refs GDPR & CCPA requirements

    → 3 compliance gaps found
    Contract AI

    Drafts suggested redline edits

    → 7 redlines with rationale

    Synthesized Response

    4 high-risk clauses · 3 compliance gaps · 7 redlines ready for download. D.AI makes this invisible — one click → parallel agents → one synthesized answer.

    How the Orchestrator decides.

    Not a router — a reasoner. The user just types. The Orchestrator autonomously reads intent, decomposes the task, selects agents, decides parallel vs. sequential, and synthesizes one answer.

    01
    Intent Classification
    Simple Q? → direct answer. Complex multi-part? → decompose.
    02
    Task Decomposition
    Breaks goal into discrete subtasks. Maps each to an agent.
    03
    Parallel vs. Sequential
    Independent → fire all at once. Dependent → chain them.
    04
    Agent Selection
    Matches subtasks to available agents for this persona.
    05
    Synthesis
    Reads all outputs. Resolves conflicts. Structures by priority.
    Competitive Differentiation

    Not a better chatbot.
    A different product category.

    DimensionGeneric AI ToolsD.AI
    InterfaceSame for everyoneTransforms per profession — color, font, layout, tone
    AgentsUser picks from a list or builds from scratchOrchestrator decides autonomously based on task
    PromptsStart from blank inputPre-engineered Smart Prompt Starters per profession
    IntegrationsGeneric connectors (user configures)Role-specific tools pre-connected (Westlaw, Epic, Bloomberg)
    MemorySession only or basic recallPersistent, profession-aware context that compounds
    TeamShared workspace onlyPer-persona + shared team memory + collaborative projects
    Custom AIPrompt engineering requiredAuto-generated full persona via D.AI's model — one input
    ConfigurationUser builds everythingZero-config — pick profession, start working
    Team Workspace

    Built for how teams actually work.

    Shared memory, collaborative projects, and live agent activity — every member in their own persona, all synced to the same team context.

    d.ai / team workspace

    Team Workspace

    + Invite
    Projects
    Settings

    Team · 5 Members

    AM
    Arjun Mehta
    Engineer · 142 queries
    SR
    Sofia Reyes
    Designer · 98 queries
    JO
    James O'Brien
    Lawyer · 67 queries
    PN
    Priya Nair
    Analyst · 211 queries
    DC
    David Chen
    PM · 55 queries

    Shared Projects

    Q4 Product Launch
    Active
    Contract Review v2
    Active
    Brand Audit 2025
    Review
    Series B Materials
    Draft

    Live Agent Activity

    AM
    Code Review: 2 issues in PR
    now
    PN
    Earnings AI: Q3 18% beat
    3m
    SR
    UX Critic: 7 a11y issues
    11m
    JO
    Contract AI: Risk report ready
    22m
    DC
    Doc Writer: PRD v3 complete
    1h
    Team Workspace — Shared Memory, Per-Persona Agents, Live Activity
    Enterprise Dashboard

    Command center for AI at scale.

    d.ai enterprise · org dashboard

    Acme Corp · 1,247 users

    SOC 2 ✓
    GDPR ✓
    HIPAA ✓
    1,247 +12%
    Active Users
    8,940 +34%
    Queries / Day
    23.1K +61%
    Agent Calls / Day
    2.4h
    Avg Time Saved / User
    Department Usage
    Engineering
    85%
    Finance
    91%
    Design
    74%
    Legal
    62%
    Operations
    48%
    Compliance & Security
    SSO / SAML 2.0 ACTIVE
    SOC 2 Type II ACTIVE
    GDPR Residency ACTIVE
    HIPAA Controls ACTIVE
    Audit Log Export ACTIVE
    Enterprise Dashboard — Org Analytics, Compliance, Custom Agents
    Business Model

    Built for AI-era monetization.

    "Agent gets better eventually using memory, inputs and all."

    — Notebook, Page 2
    Free
    $0
    • 3 personas
    • Basic smart prompts
    • Standard agents
    • Community integrations
    Team
    $**/seat
    • Everything in Pro
    • Shared prompt libraries
    • Team workspace
    • Admin dashboard
    • SSO + audit logs
    Enterprise
    Custom
    • White-label UI
    • Custom model routing
    • Multi-agent orchestration
    • Full API access
    • SLA guarantee
    Design Thinking

    This is how I think.

    I start with the real person, not the feature.

    Before any pixel — who is overwhelmed and why? The insight came from observing how AI tools treat a doctor and a developer identically.

    I think in systems, not screens.

    D.AI is an identity layer, not a theme switcher. The persona engine, the agent model, the integration logic — designed as a coherent system from the notebook up.

    I build to validate, not to present.

    A working React prototype with live API calls, fully-realized personas, and a custom AI generator — because you earn the right to pitch by building first.

    I design for the industry I want to work in.

    AI interfaces are the defining UX challenge of this decade. D.AI is my proof that I understand the space — technically, strategically, and visually.

    the ai that
    becomes you.

    Built from a blank notebook page to a working product.

    Problem → Research → Architecture → Prototype → Impact.