factorial

name	factorial
description	Compute the factorial of a non-negative integer n, streaming each multiplication step. Use when asked to compute factorial, calculate n!, or demonstrate streaming math computation.
license	MIT
compatibility	Python 3.11+

What this skill does

Computes n! iteratively, yielding each multiplication step as a streamed chunk so the client can observe the computation in progress.

Input

• n — non-negative integer

Output

Each step is streamed as a chunk:

start: 1
2: 2
3: 6
4: 24
5: 120

Gotchas

• n = 0 returns 0! = 1 immediately (by definition).
• Negative values raise ValueError.
• The handler is an async generator — each step is a separate SSE chunk event.