/.codex/hooks.json

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "jq -r '.tool_input.command // empty' | { read -r cmd; if echo \"$cmd\" | grep -Eq '(^|&&|;|\\|)[[:space:]]*git[[:space:]]+(checkout[[:space:]]+-b|switch[[:space:]]+-c)\\b' || echo \"$cmd\" | grep -Eq '(^|&&|;|\\|)[[:space:]]*git[[:space:]]+branch[[:space:]]+[^-[:space:]][^[:space:]]*([[:space:]]|$)'; then printf '{\"hookSpecificOutput\":{\"hookEventName\":\"PreToolUse\",\"permissionDecision\":\"deny\",\"permissionDecisionReason\":\"Edmund prefers git worktrees over branch-switching for concurrent local work: git worktree add .worktrees/<branch> <branch> (branch keeps its normal type/slug name). See CLAUDE.md Git practices / docs/ARCHITECTURE.md \\u00a712.\"}}'; else echo '{}'; fi; }"
          }
        ]
      }
    ],
    "Stop": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "swift test 2>&1 | tail -5",
            "timeout": 120,
            "statusMessage": "Running swift test…"
          }
        ]
      }
    ]
  }
}