Issue 102 : No Input Validation In Tool Functions to Prevent Invalid Input

[hammadii123]

Issue 2: Add Input Validation to Tool Functions to Prevent Invalid Input

Problem

Tool functions like multiply_by_two() currently do not validate input:

def multiply_by_two(x: int) -> int:
    return x * 2

This can fail silently or cause issues if incorrect types are passed.

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Suggested Fix

Add simple input validation with error messaging:

def multiply_by_two(x: int) -> int:
    if not isinstance(x, int):
        raise ValueError("Expected integer input.")
    return x * 2

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Why It Matters

• Makes tool behavior more predictable
• Fails early with helpful error
• Avoids propagation of invalid state in multi-agent chains