Hooks vs. Skills in Agent Plugins: Why Deterministic Checks Must Never Be Left to the Model — MindStudio Analysis

MindStudio·low signal

MindStudio published a detailed analysis of when to use hooks (deterministic, fire-on-lifecycle-event shell commands) versus skills (model-invoked capabilities) in Codex and Claude Code plugin architectures. The core rule: anything that must always happen (secret scanning, logging, compliance checks) goes in a hook; anything that requires judgment goes in a skill. Mixing these up is the #1 source of agent reliability failures in production plugin deployments.