install.sh

#!/usr/bin/env bash
# install.sh — copy the 17 skills into your agent's skills directory.
# Vendor-neutral SKILL.md skills. Works with Claude Code, opencode, Codex, Cursor, etc.
set -euo pipefail

SRC="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/skills"

usage() {
  cat <<USAGE
codex-skills-alternative installer

Usage: ./install.sh [--agent <name>] [--project] [--dry-run]

  --agent <name>   claude | opencode | codex | cursor | agents (default: auto-detect)
  --project        install into the current repo instead of your home dir
  --dry-run        print what would happen, copy nothing
  --help           show this help

With no --agent, the script installs to every detected agent (global scope).
USAGE
}

AGENT=""
PROJECT=0
DRY=0
while [ $# -gt 0 ]; do
  case "$1" in
    --agent) AGENT="${2:-}"; shift 2;;
    --project) PROJECT=1; shift;;
    --dry-run) DRY=1; shift;;
    --help|-h) usage; exit 0;;
    *) echo "unknown arg: $1" >&2; usage; exit 1;;
  esac
done

# Resolve target dir for a given agent + scope.
target_dir() {
  local agent="$1"
  if [ "$PROJECT" -eq 1 ]; then
    case "$agent" in
      claude)   echo ".claude/skills";;
      opencode) echo ".opencode/skills";;
      codex)    echo ".codex/skills";;
      cursor)   echo ".cursor/skills";;
      agents)   echo ".agents/skills";;
    esac
  else
    case "$agent" in
      claude)   echo "$HOME/.claude/skills";;
      opencode) echo "$HOME/.config/opencode/skills";;
      codex)    echo "$HOME/.codex/skills";;
      cursor)   echo "$HOME/.cursor/skills";;
      agents)   echo "$HOME/.agents/skills";;
    esac
  fi
}

# Auto-detect installed agents by their config dirs.
detect_agents() {
  local found=()
  [ -d "$HOME/.claude" ] && found+=("claude")
  [ -d "$HOME/.config/opencode" ] && found+=("opencode")
  [ -d "$HOME/.codex" ] && found+=("codex")
  [ -d "$HOME/.cursor" ] && found+=("cursor")
  if [ ${#found[@]} -eq 0 ]; then found=("agents"); fi
  printf '%s\n' "${found[@]}"
}

install_to() {
  local agent="$1" dest
  dest="$(target_dir "$agent")"
  if [ -z "$dest" ]; then echo "skip: unknown agent '$agent'"; return; fi
  echo "==> $agent -> $dest"
  if [ "$DRY" -eq 1 ]; then
    for d in "$SRC"/*/; do echo "   would copy $(basename "$d")"; done
    return
  fi
  mkdir -p "$dest"
  cp -R "$SRC"/* "$dest"/
  echo "   installed $(find "$SRC" -maxdepth 1 -mindepth 1 -type d | wc -l | tr -d ' ') skills"
}

if [ -n "$AGENT" ]; then
  install_to "$AGENT"
else
  while IFS= read -r a; do install_to "$a"; done < <(detect_agents)
fi

echo "Done. Restart your agent if it doesn't watch the skills dir live."