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Debate and consensus patterns in Agentic AI - Practice Problems & Coding Challenges

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Challenge - 5 Problems
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🧠 Conceptual
intermediate
2:00remaining
What is the main purpose of debate patterns in agentic AI?

In agentic AI systems, multiple agents engage in a debate to reach a conclusion. What is the primary goal of using debate patterns?

ATo randomly select one agent's opinion without discussion.
BTo allow agents to present opposing views and improve decision quality through argumentation.
CTo ensure all agents agree on the first suggestion made.
DTo reduce the number of agents involved by eliminating some randomly.
Attempts:
2 left
💡 Hint

Think about how debate helps improve decisions by considering different perspectives.

Predict Output
intermediate
1:30remaining
Output of a simple consensus function

Consider this Python function that takes a list of agent votes (True or False) and returns the consensus decision (True if majority True, else False). What is the output when votes = [True, False, True, True, False]?

Agentic AI
def consensus(votes):
    true_count = sum(votes)
    return true_count > len(votes) / 2

votes = [True, False, True, True, False]
result = consensus(votes)
print(result)
AError: unsupported operand
B3
CTrue
DFalse
Attempts:
2 left
💡 Hint

Count how many True values are in the list and compare to half the list length.

Model Choice
advanced
2:30remaining
Best model architecture for debate-based agentic AI

You want to build an agentic AI system where multiple agents debate to improve answer quality. Which model architecture is best suited for this?

AA simple linear regression model.
BA single transformer model generating answers without interaction.
CA convolutional neural network for image classification.
DMultiple transformer agents with a shared communication channel for debate.
Attempts:
2 left
💡 Hint

Think about how agents can exchange information and argue their points.

Hyperparameter
advanced
2:00remaining
Choosing hyperparameters for consensus threshold

In a consensus mechanism, you set a threshold for agreement among agents to accept a decision. What is the effect of setting this threshold too high?

ADecisions may be delayed or never accepted due to strict agreement requirements.
BDecisions are accepted more quickly with less agreement.
CThe system ignores agent opinions and picks randomly.
DThe system always accepts the first agent's decision.
Attempts:
2 left
💡 Hint

Consider what happens if almost all agents must agree before accepting a decision.

🔧 Debug
expert
2:30remaining
Identify the error in this debate simulation code

What error does this code raise when simulating a debate among agents?

class Agent:
    def __init__(self, name):
        self.name = name
    def argue(self):
        return f"{self.name} argues"

agents = [Agent("A1"), Agent("A2")]
results = [agent.argue for agent in agents]
print(results)
Agentic AI
class Agent:
    def __init__(self, name):
        self.name = name
    def argue(self):
        return f"{self.name} argues"

agents = [Agent("A1"), Agent("A2")]
results = [agent.argue for agent in agents]
print(results)
ANo error, prints ['A1 argues', 'A2 argues']
BSyntaxError: invalid syntax
CTypeError: 'method' object is not callable
DNameError: name 'agent' is not defined
Attempts:
2 left
💡 Hint

Check how the method is called inside the list comprehension.

Practice

(1/5)
1. What is the main purpose of debate patterns in agentic AI?
easy
A. To show different opinions and select the best one
B. To make all agents agree on the same answer
C. To train a single agent faster
D. To randomly pick an answer from agents

Solution

  1. Step 1: Understand debate pattern goal

    Debate patterns involve agents sharing different opinions to explore ideas.
  2. Step 2: Identify the outcome of debate

    The goal is to pick the best answer from these opinions, not just agree or random pick.
  3. Final Answer:

    To show different opinions and select the best one -> Option A
  4. Quick Check:

    Debate = select best opinion [OK]
Hint: Debate means different views, pick the best [OK]
Common Mistakes:
  • Confusing debate with consensus
  • Thinking debate forces agreement
  • Believing debate picks random answers
2. Which code snippet correctly represents a consensus pattern among agents returning answers in Python?
easy
A. consensus = sum(answers)
B. consensus = min(answers)
C. consensus = answers[0]
D. consensus = max(set(answers), key=answers.count)

Solution

  1. Step 1: Understand consensus pattern in code

    Consensus means picking the most common answer among agents.
  2. Step 2: Identify code that finds most common answer

    Using max with key=answers.count finds the answer with highest frequency.
  3. Final Answer:

    consensus = max(set(answers), key=answers.count) -> Option D
  4. Quick Check:

    Consensus = most common answer [OK]
Hint: Consensus picks most frequent answer [OK]
Common Mistakes:
  • Using min or sum instead of frequency count
  • Picking first answer without checking frequency
  • Confusing consensus with random choice
3. Given the following Python code for a debate pattern, what is the output?
agents = ['A', 'B', 'C']
opinions = {'A': 0.7, 'B': 0.9, 'C': 0.6}
best_agent = max(opinions, key=opinions.get)
print(best_agent)
medium
A. A
B. B
C. C
D. Error

Solution

  1. Step 1: Understand max with key function

    max(opinions, key=opinions.get) finds key with highest value in opinions dictionary.
  2. Step 2: Identify highest opinion value

    Values are 0.7 (A), 0.9 (B), 0.6 (C). Highest is 0.9 for B.
  3. Final Answer:

    B -> Option B
  4. Quick Check:

    Max opinion = B [OK]
Hint: max with key picks highest value key [OK]
Common Mistakes:
  • Picking agent with lowest value
  • Confusing keys and values in max
  • Expecting error due to dictionary usage
4. Identify the bug in this consensus pattern code snippet:
answers = ['yes', 'no', 'yes', 'maybe']
consensus = max(answers, key=answers.count)
print(consensus)
medium
A. It does not handle ties correctly
B. max() cannot be used with key argument
C. answers.count is not a valid method
D. The list answers is empty

Solution

  1. Step 1: Analyze max with key=answers.count behavior

    This finds the element with highest count, but if tie exists, it picks first max.
  2. Step 2: Check for ties in answers list

    'yes' appears twice, 'no' and 'maybe' once each, so no tie here. But if tie existed, this method picks first max only.
  3. Final Answer:

    It does not handle ties correctly -> Option A
  4. Quick Check:

    Consensus tie handling = issue [OK]
Hint: max with count picks first max, ties not resolved [OK]
Common Mistakes:
  • Thinking max can't use key argument
  • Believing answers.count is invalid
  • Assuming list is empty
5. You have three AI agents debating the best movie rating: Agent1 says 8.5, Agent2 says 9.0, Agent3 says 8.7. Using a debate pattern, which approach best selects the final rating?
hard
A. Pick the average rating of all agents
B. Randomly select any agent's rating
C. Select the rating from the agent with highest confidence
D. Choose the lowest rating to be safe

Solution

  1. Step 1: Understand debate pattern goal

    Debate aims to compare opinions and pick the best based on confidence or quality.
  2. Step 2: Identify best approach for final rating

    Choosing the rating from the agent with highest confidence aligns with debate selecting best opinion.
  3. Final Answer:

    Select the rating from the agent with highest confidence -> Option C
  4. Quick Check:

    Debate picks best confident opinion [OK]
Hint: Debate picks best confident opinion, not average [OK]
Common Mistakes:
  • Averaging ratings (consensus, not debate)
  • Picking lowest rating without reason
  • Random selection ignoring confidence