Hook Based Lifecycle Interception With Event Extraction And State Mutation

via “hooks system for lifecycle event interception and automation”

from vibe coding to agentic engineering - practice makes claude perfect

Unique: Implements a 17+ event hook system with synchronous execution at specific agent lifecycle points (SessionStart, PreToolUse, PostToolUse, Stop, etc.), enabling deterministic automation and cross-cutting concerns without modifying agent logic. This is more comprehensive than simple logging because hooks can modify agent behavior and enforce policies at runtime.

More flexible than middleware-based approaches because hooks are event-driven and can be registered/unregistered dynamically; more powerful than simple logging because hooks can modify agent behavior and trigger side effects, though at the cost of synchronous blocking.