- Return { behavior: "allow", updatedInput: <input> } from prompt_permission
to match the Claude Code SDK expected format (was returning just
{ behavior: "allow" } which failed validation)
- Scaffold .claude/settings.json with sensible permission defaults (Edit,
Write, common Bash commands, mcp__story-kit__*) so fresh projects don't
trigger constant permission prompts
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>