AI Agents
Route Events Through A Mini EventStream
Implement the core routing behavior of a simplified OpenHands-style EventStream.
Daily Practice
4 review items picked for you today, one per key category.
Each solved challenge improves your recall score for the roadmap.Transformer Systems
Mask Debugger
Build and verify padding, causal, decoder, packed-document, and masked-softmax behavior for attention masks.
Transformer Systems
Mask Requirements Review
Recall why Transformer training needs padding masks and sequence masks before attention probabilities are computed.
Transformer Systems
Padding Mask And Softmax Review
Recall how padding masks remove artificial tokens from the attention softmax and weighted value sum.