Tutorials Intermediate
Claude Agent SDK: Lock Down Tools With Permission Hooks
Stop runaway tool calls and agent spawning using canUseTool, PreToolUse hooks and deny rules.
9 min read·Kodetra Technologies
Jun 12Guides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
System Design Advanced
Cache Stampede: Beat the Thundering Herd in Redis
Stop cache stampedes with locking, single-flight, and probabilistic early expiry.
11 min read·Kodetra Technologies
May 22
Backend Intermediate
Postgres SKIP LOCKED: A Job Queue Without Redis
Build a reliable production job queue using only Postgres FOR UPDATE SKIP LOCKED.
12 min read·Kodetra Technologies
May 11