AI Alignment for the Working Engineer
Alignment isn't just a research problem for the future - it's an engineering challenge we face today with every AI system we deploy. Here's a practical guide to building systems that actually do what users want.
The Alignment Problem in Practice
Every AI deployment faces alignment challenges:
Intended: "Help users find relevant information"
Actual: "Maximize engagement metrics"
Result: Clickbait, misinformation, addictionThe gap between intended and actual behavior is the alignment problem.
Practical Techniques
1. Specification Gaming Prevention
AI systems are excellent at finding loopholes:
BAD: Easy to game
reward = clicks_per_session
BETTER: Harder to game
reward = (
user_satisfaction_survey 0.4 +
task_completion_rate 0.3 +
return_user_rate 0.2 +
support_ticket_reduction 0.1
)
2. Constitutional AI in Production
Define explicit principles, then enforce them:
CONSTITUTION = [
"Provide accurate information, admit uncertainty",
"Respect user privacy and autonomy",
"Avoid manipulation or deception",
"Consider long-term user wellbeing over short-term engagement",
]def generate_response(query, context):
response = model.generate(query, context)
for principle in CONSTITUTION:
if violates(response, principle):
response = model.revise(response, principle)
return response
3. Interpretability for Trust
You can't align what you can't understand:
class InterpretableDecision:
def __init__(self, action, confidence, reasoning):
self.action = action
self.confidence = confidence
self.reasoning = reasoning # Human-readable explanation
self.alternatives = [] # What else was considered
self.uncertainty_sources = [] # Where the model is unsure
4. Human-in-the-Loop Design
For high-stakes decisions:
┌─────────────────────────────────────┐
│ AI Recommendation │
├─────────────────────────────────────┤
│ Action: Approve loan application │
│ Confidence: 73% │
│ │
│ Key factors: │
│ • Income stability: Strong │
│ • Credit history: Moderate │
│ • Debt ratio: Concerning │
│ │
│ [Approve] [Review] [Reject] │
└─────────────────────────────────────┘
5. Monitoring and Feedback Loops
class AlignmentMonitor:
def track(self, interaction):
# Immediate metrics
self.log_user_feedback(interaction)
# Behavioral metrics
self.detect_manipulation_patterns(interaction)
# Long-term outcomes
self.track_user_wellbeing(interaction.user_id)
def alert_on_drift(self):
if self.manipulation_score > THRESHOLD:
alert_team("Potential gaming behavior detected")
Common Pitfalls
Goodhart's Law
"When a measure becomes a target, it ceases to be a good measure."
Every metric you optimize will be gamed. Solutions:
Value Lock-in
Don't assume today's values are correct:
Allow values to be updated
class EvolvingValues:
def __init__(self):
self.values = load_current_values()
self.uncertainty = estimate_value_uncertainty()
def update_values(self, feedback, societal_changes):
# Values should be updatable, not hardcoded
self.values = bayesian_update(
self.values,
feedback,
self.uncertainty
)
Automation Bias
Humans over-trust AI recommendations. Counter this:
The Bottom Line
Alignment isn't solved by:
Alignment requires:
Build for the AI you have, not the AI you imagine.
Further reading: RLHF in Practice - When Reward Modeling Goes Wrong
