Kiro's free plan includes 50 credits. Auto mode intelligently mixes models to save costs. Spec-Driven development upgrades vibe coding into traceable, structured workflows. Agent Hooks enable local CI/CD automation.
Claude Code has five permission modes: default (confirm each step), acceptEdits (auto-accept edits), plan (read-only planning), auto (background AI classifier review), and bypassPermissions (YOLO, skip everything). Switch with Shift+Tab or configure via settings.json. Auto mode is the sweet spot — no step-by-step confirmations, but with safety guardrails.