THINGS WORTH
WRITING DOWN.

Notes on software, AI, systems, security and whatever I'm trying to understand.

How agents actually use tools

From model output and JSON schemas to execution loops and state management.

From Anycast BGP and geo-DNS to TLS 1.3 termination, HTTP/3 0-RTT handshakes, and global cache coherence.

From AST compilation and bytecode virtual machines to B-trees, write-ahead logs, and pager cache mechanics.

How to tell whether retrieval and generation are actually working in production applications.

Pointers, virtual memory, stack frames, heap allocators, and modern RAII ownership.