Agent Skills: smith-settings

Claude Code settings files — which config lives where (user / project / project-local / managed, and their precedence) plus a runnable convention-validator hook recipe that blocks actions violating repo rules. Use when editing settings.json or .claude config, deciding which scope a key belongs in, or building a hook that enforces a convention (commit/branch/file rules). For hooks internals see smith-ctx-claude; for permissions/auto-mode see smith-auto_mode.