Short-term memory (conversation context) in Agentic AI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to initialize a short-term memory buffer as an empty list.

Agentic AI

short_term_memory = [1]

Drag options to blanks, or click blank then click option'

ANone

B0

C{}

D[]

Attempts:

3 left

💡 Hint

Common Mistakes

Using curly braces {} which creates a dictionary instead of a list.

Setting the memory to None or 0 which cannot hold conversation data.

The short-term memory buffer should start as an empty list to store conversation context.

2fill in blank

medium

Complete the code to add a new user message to the short-term memory list.

Agentic AI

short_term_memory.[1](user_message)

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Apop

Binsert

Cappend

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using insert without specifying an index.

Using remove or pop which delete items instead of adding.

Use append to add a new message to the end of the list, preserving order.

3fill in blank

hard

Fix the error in the code to retrieve the last message from short-term memory safely.

Agentic AI

last_message = short_term_memory[1] if short_term_memory else None

Drag options to blanks, or click blank then click option'

A[-1]

B[-2]

C[0]

D[1]

Attempts:

3 left

💡 Hint

Common Mistakes

Using index 0 which gets the first message, not the last.

Using index 1 or -2 which may cause errors if the list is too short.

Using [-1] gets the last item in the list safely if the list is not empty.

4fill in blank

hard

Fill both blanks to create a function that clears short-term memory and returns its previous content.

Agentic AI

def reset_memory():
    previous = short_term_memory[1]
    short_term_memory[2]()
    return previous

Drag options to blanks, or click blank then click option'

A[:]

Bclear

Ccopy

Dpop

Attempts:

3 left

💡 Hint

Common Mistakes

Using copy() which returns a copy but is not used here.

Using pop() which removes only one item.

Use [:] to copy the list and clear() to empty it.

5fill in blank

hard

Fill all three blanks to update short-term memory by keeping only the last 5 messages.

Agentic AI

short_term_memory = short_term_memory[1][-[2]:]
if len(short_term_memory) > [3]:
    short_term_memory.pop(0)

Drag options to blanks, or click blank then click option'

A.copy()

B5

C10

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Not copying the list before slicing which can cause unexpected behavior.

Using wrong slice length or wrong limit in the if condition.

Copy the list, keep last 5 messages, and remove oldest if more than 5.