# ARCHAI Adaptive Assessment Engine — Integration Guide

## 🚀 What You Get

A **deployed, SOTA-powered adaptive assessment backend** that replaces your static 12-question quiz with an intelligent, personalized testing engine. The engine adapts question difficulty in real time based on each user's responses, stops early when measurement is precise enough, and generates structured learning paths with day/week/month granularity.

**Live API**: https://huggingface.co/spaces/Builder-Neekhil/archai-adaptive-engine

---

## 📊 Architecture Comparison

| Feature | Your Current App (v1) | Adaptive Engine (v2) |
|---------|----------------------|----------------------|
| **Question order** | Fixed, always same | **Fisher-information optimal** — adapts per user |
| **Question count** | Always 12 | **Adaptive 6–12** — stops when SE < 0.3 |
| **Scoring** | Simple average of responses | **Bayesian latent ability estimation** (θ per dimension) |
| **Difficulty** | Same for everyone | **Calibrated IRT difficulties** (-2 to +2 per question) |
| **Precision** | None reported | **Standard error per dimension** (±3% confidence) |
| **Learning paths** | Static tool list | **Structured day/week/month actionables** with projections |

---

## 🔌 Integration Steps

### Step 1: Replace Question Flow

Your current app loads `q[dim][f]` statically. Replace with API calls:

```javascript
// BEFORE (static)
const questions = {
  literacy: [
    { q: "How well can you explain...", opts: [...] },
    // 2 questions per dimension, fixed order
  ],
  // ... all 6 dimensions
};

// AFTER (adaptive)
let sessionId = null;

async function startAssessment() {
  const res = await fetch(
    'https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/session/start',
    { method: 'POST' }
  );
  const data = await res.json();
  sessionId = data.session_id;
  renderQuestion(data.question);
  updateProgress(data.progress);
}

async function handleAnswer(questionId, optionIndex) {
  const res = await fetch(
    'https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/session/answer',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        session_id: sessionId,
        question_id: questionId,
        option_index: optionIndex,  // 0 = lowest, 3 = highest
      }),
    }
  );
  const data = await res.json();

  if (data.status === 'complete') {
    // Assessment finished — fetch results
    const resultsRes = await fetch(
      `https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/session/${sessionId}`
    );
    const results = await resultsRes.json();
    renderResults(results);
  } else {
    renderQuestion(data.question);
    updateProgress(data.progress);
    // Optional: show interim radar with data.interim_scores
  }
}
```

### Step 2: Render Results (Drop-in Compatible)

The API returns data in the **same shape** your frontend already expects:

```javascript
// Results response structure
{
  "session_id": "abc123",
  "status": "complete",
  "overall_score": 64,              // ← Use for big number display
  "dimension_scores": {            // ← Use for radar chart
    "literacy": 64,
    "tooling": 63,
    "strategy": 63,
    "implementation": 66,
    "governance": 63,
    "data": 67,
  },
  "stage": {                        // ← Use for stage badge
    "id": "application",
    "label": "Application",
    "threshold": 60,
    "desc": "You use AI daily"
  },
  "archetype": {                    // ← Use for archetype card
    "id": "responsible-builder",
    "label": "The Responsible Builder",
    "desc": "Balances capability with caution"
  },
  "strengths": [                    // ← Use for strengths section
    { "dimension": "implementation", "label": "Implementation", "score": 66, "color": "#14B8A6" },
    { "dimension": "data", "label": "Data Fluency", "score": 67, "color": "#34D399" },
  ],
  "gaps": [                         // ← Use for gaps section
    { "dimension": "tooling", "label": "Tool Proficiency", "score": 63, "color": "#F43F5E" },
    { "dimension": "strategy", "label": "Strategic Thinking", "score": 63, "color": "#FB7185" },
  ],
  "percentile": 76,                 // ← "Top 76%" badge
  "questions_answered": 8,          // ← Shows adaptive efficiency
  "latent_abilities": { ... },      // ← Optional: raw θ values
  "measurement_precision": { ... },  // ← Optional: SE per dimension
}
```

### Step 3: Generate Learning Path (After Budget/Hardware Selection)

After the user picks persona, hours, budget, hardware, preference:

```javascript
async function generatePath(personaId, hoursPerWeek, budgetUsd, hardwareId, preference) {
  const res = await fetch(
    'https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/path/generate',
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        session_id: sessionId,
        persona_id: personaId,        // "ml-eng", "swe", "product", etc.
        hours_per_week: hoursPerWeek, // 2, 5, 10, 20
        budget_usd: budgetUsd,        // 0, 25, 100, 500
        hardware_id: hardwareId,      // "8gb", "16gb", "24gb", "64gb"
        preference: preference,       // "local", "api", "both"
      }),
    }
  );
  const path = await res.json();

  // Render Day-by-Day actions
  renderDays(path.learning_path.days);

  // Render Week-by-Week plan
  renderWeeks(path.learning_path.weeks);

  // Render Month-by-Month strategy
  renderMonths(path.learning_path.months);

  // Show projection
  renderProjection(path.projections);
}
```

### Step 4: New UI Components to Add

#### A. Adaptive Progress Indicator
```jsx
// Shows "Question 3 of ~8" instead of fixed "3 of 12"
function AdaptiveProgress({ progress }) {
  return (
    <div>
      <span>Question {progress.asked} of ~{progress.total}</span>
      <div className="dim-pills">
        {progress.dimensions_covered.map(d => (
          <span key={d} className="pill">{d}</span>
        ))}
      </div>
    </div>
  );
}
```

#### B. Day-by-Day Actionable Card
```jsx
function DayActionCard({ day }) {
  return (
    <div className={`card ${day.quick_win ? 'highlight' : ''}`}>
      <div className="day-label">Day {day.day}</div>
      <h4>{day.title}</h4>
      <p>{day.description}</p>
      <div className="meta">
        <span>⏱ {day.estimated_time}</span>
        <span>🏷 {day.action_type}</span>
      </div>
      {day.resource_link && (
        <a href={day.resource_link} target="_blank">Open resource →</a>
      )}
      {day.why && <div className="why">💡 {day.why}</div>}
    </div>
  );
}
```

#### C. Week-by-Week Milestone
```jsx
function WeekPlanCard({ week }) {
  return (
    <div className="week-card">
      <div className="week-header">
        <h4>Week {week.week}: {week.theme}</h4>
        <span>Focus: {week.focus_dimension}</span>
        <span>~{week.estimated_hours} hrs</span>
      </div>
      {week.actions.map((action, i) => (
        <div key={i} className="action-row">
          <div className="action-title">{action.title}</div>
          <div className="action-meta">
            <span>{action.type}</span>
            <span>{action.estimated_hours}h</span>
            <span>{action.cost}</span>
          </div>
          <div className="deliverable">📋 {action.deliverable}</div>
        </div>
      ))}
      <div className="checkpoint">✅ {week.checkpoint}</div>
    </div>
  );
}
```

#### D. Month-by-Month Strategic Goals
```jsx
function MonthGoalCard({ month }) {
  return (
    <div className="month-card">
      <h4>Month {month.month}: {month.theme}</h4>
      {month.strategic_goals.map((goal, i) => (
        <div key={i} className="goal">
          <div className="goal-title">🎯 {goal.title}</div>
          <div className="goal-metric">Metric: {goal.metric}</div>
          <ul>
            {goal.tactics.map((t, j) => <li key={j}>{t}</li>)}
          </ul>
        </div>
      ))}
      <div className="review">
        <h5>Monthly Reflection</h5>
        {month.review_questions.map((q, i) => (
          <div key={i} className="review-q">• {q}</div>
        ))}
      </div>
    </div>
  );
}
```

#### E. Progress Projection Bar
```jsx
function ProjectionBar({ projections }) {
  return (
    <div className="projection">
      <div className="projection-text">
        At <strong>{projections.at_hours_per_week} hrs/week</strong>,
        you'll reach <strong>{projections.next_stage}</strong> in
        <strong> ~{projections.estimated_weeks} weeks</strong>
        ({projections.projected_reach_date})
      </div>
      <div className="progress-bar">
        <div className="fill" style={{ width: `${(projections.gap_to_next / 20) * 100}%` }} />
      </div>
      <div className="gap-label">{projections.gap_to_next} points to next stage</div>
    </div>
  );
}
```

---

## 🔧 API Reference

### `POST /api/v1/session/start`
Initialize a new assessment session.

**Response:**
```json
{
  "session_id": "abc123...",
  "question": {
    "id": "lit_3",
    "dimension": "literacy",
    "dimension_label": "AI Literacy",
    "text": "Can you explain what a transformer architecture is...",
    "options": ["No idea", "Vague understanding", "Can explain", "Can implement"],
    "difficulty": 0.5,
    "discrimination": 1.8,
    "concept_tags": ["transformers", "attention", "architecture"]
  },
  "progress": {"asked": 0, "total": 12, "dimensions_covered": []},
  "status": "in_progress"
}
```

### `POST /api/v1/session/answer`
Submit an answer and get the next adaptive question.

**Request:**
```json
{
  "session_id": "abc123...",
  "question_id": "lit_3",
  "option_index": 2
}
```

**Response (in_progress):**
```json
{
  "session_id": "abc123...",
  "question": { /* next adaptive question */ },
  "progress": {"asked": 1, "total": 12, "dimensions_covered": ["literacy"]},
  "interim_scores": {"literacy": 73, "tooling": 50, ...},
  "status": "in_progress"
}
```

**Response (complete):**
```json
{
  "session_id": "abc123...",
  "status": "complete",
  "overall_score": 64,
  "dimension_scores": {...},
  "stage": {...},
  "archetype": {...},
  "strengths": [...],
  "gaps": [...],
  "percentile": 76,
  "questions_answered": 8
}
```

### `GET /api/v1/session/{session_id}`
Get current state or final results.

### `POST /api/v1/path/generate`
Generate structured learning path.

**Request:**
```json
{
  "session_id": "abc123...",
  "persona_id": "swe",
  "hours_per_week": 5,
  "budget_usd": 25,
  "hardware_id": "16gb",
  "preference": "both"
}
```

**Response:**
```json
{
  "session_id": "abc123...",
  "overall_score": 64,
  "stage": {"id": "application", "label": "Application", ...},
  "archetype": {"id": "responsible-builder", ...},
  "dimension_scores": {...},
  "gaps": [...],
  "strengths": [...],
  "learning_path": {
    "days": [ /* 7 day actionables */ ],
    "weeks": [ /* 3-8 week plans */ ],
    "months": [ /* 3 month strategic goals */ ]
  },
  "projections": {
    "current_stage": "Application",
    "next_stage": "Integration",
    "gap_to_next": 11,
    "estimated_weeks": 5,
    "projected_reach_date": "May 28, 2026"
  },
  "meta": {
    "total_hours": 7.5,
    "estimated_weeks": 2,
    "generated_at": "2026-04-23T20:30:00"
  }
}
```

### `GET /api/v1/questions`
Get the full calibrated question bank (24 questions, 4 per dimension).

---

## 🎨 Design Notes

### Maintaining Your App's Essence

Your current design uses:
- Background: `#FFF9F5` (warm cream)
- Primary: `#14B8A6` (teal) + `#34D399` (pista green)
- Accent: `#F97316` (orange)
- Typography: Bricolage Grotesque + Figtree + IBM Plex Mono
- Cards: glassmorphism (`rgba(255,255,255,0.55)` + `blur(24px)`)

The adaptive engine data is **structure-agnostic** — it returns JSON that you can render with your existing design system. No visual changes required.

### Recommended New Visual Elements

1. **Adaptive badge** on the landing page: "Adaptive Assessment · Questions adjust to your level"
2. **Live precision indicator** during assessment: "Measurement confidence: 87%" (derived from `1 - SE`)
3. **Question difficulty indicator** (subtle): Show a tiny dot color-coded by difficulty level
4. **Day/week/month toggle** on the learning path page

---

## 🧪 Testing

### Manual API Test
```bash
# 1. Start session
curl -sX POST https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/session/start | python -m json.tool

# 2. Answer first question (replace SESSION_ID and Q_ID)
curl -sX POST https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/session/answer \
  -H "Content-Type: application/json" \
  -d '{"session_id":"SESSION_ID","question_id":"Q_ID","option_index":2}' | python -m json.tool

# 3. Get results
curl -s https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/session/SESSION_ID | python -m json.tool

# 4. Generate path
curl -sX POST https://Builder-Neekhil-archai-adaptive-engine.hf.space/api/v1/path/generate \
  -H "Content-Type: application/json" \
  -d '{"session_id":"SESSION_ID","persona_id":"swe","hours_per_week":5,"budget_usd":25}' | python -m json.tool
```

---

## 📈 Advanced: Adding More Questions

To expand the question bank, add entries to `build_question_bank()` in `adaptive_engine.py`:

```python
Question("lit_5", Dimension.LITERACY,
    "Your new question here?",
    ["Option A", "Option B", "Option C", "Option D"],
    difficulty=1.0,    # Calibrate: -2 (easy) to +2 (hard)
    discrimination=1.5,  # Higher = better at separating high/low ability
    concept_tags=["tag1", "tag2"]
),
```

Re-deploy to Hugging Face Spaces after updating.

---

## 🏗️ Self-Hosting (Optional)

If you prefer to host the API yourself:

```bash
git clone https://huggingface.co/spaces/Builder-Neekhil/archai-adaptive-engine
cd archai-adaptive-engine
pip install -r requirements.txt
uvicorn main:app --host 0.0.0.0 --port 7860
```

Or deploy to:
- **Hugging Face Spaces** (free, persistent)
- **Render/Railway/Fly.io** (good for custom domains)
- **AWS Lambda + API Gateway** (serverless, scales to zero)

---

## 📝 CORS Configuration

The API is configured with `allow_origins=["*"]` for development. For production, restrict to your Netlify domain:

```python
# In main.py
app.add_middleware(
    CORSMiddleware,
    allow_origins=["https://your-ai-arch.netlify.app"],
    allow_credentials=True,
    allow_methods=["POST", "GET"],
    allow_headers=["Content-Type"],
)
```

---

## 🎯 Next Steps

1. ✅ **Test the API** with the curl commands above
2. ✅ **Wire up** `startAssessment()` and `handleAnswer()` in your React app
3. ✅ **Add** day/week/month rendering components
4. ✅ **Style** new components to match your existing design system
5. 🔄 **Iterate** on question difficulty calibration based on real user data

---

**Questions?** The API docs are live at: https://Builder-Neekhil-archai-adaptive-engine.hf.space/docs