longline 0.11.0

System-installed safety hook for Claude Code
Documentation 
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# System: process control, config modification, and privileged operations

allowlists:
  commands: []

rules:
  # ============================================================
  # HIGH: Network / process operations
  # ============================================================
  - id: kill-signal
    level: high
    match:
      command:
        any_of: [kill, killall, pkill]
      flags:
        any_of: ["-9", "-KILL", "-SIGKILL"]
    decision: ask
    reason: "Forceful process termination"

  - id: iptables-modify
    level: high
    match:
      command:
        any_of: [iptables, ip6tables, nft, ufw]
    decision: ask
    reason: "Firewall rule modification"

  # ============================================================
  # HIGH: System config modification
  # ============================================================
  - id: chmod-777
    level: high
    match:
      command: chmod
      args:
        any_of: ["777"]
    decision: ask
    reason: "Setting world-writable permissions"

  - id: edit-etc-hosts
    level: high
    match:
      command:
        any_of: [tee, ">>"]
      args:
        any_of: ["/etc/hosts"]
    decision: deny
    reason: "Modifying /etc/hosts"

  - id: edit-sudoers
    level: high
    match:
      command:
        any_of: [visudo, tee]
      args:
        any_of: ["/etc/sudoers", "/etc/sudoers.d/*"]
    decision: deny
    reason: "Modifying sudoers configuration"

  - id: crontab-modify
    level: high
    match:
      command: crontab
      flags:
        any_of: ["-e", "-r"]
    decision: ask
    reason: "Modifying system crontab"

  - id: systemctl-modify
    level: high
    match:
      command:
        any_of: [systemctl, launchctl]
      args:
        any_of: ["stop", "disable", "mask", "enable", "start", "restart"]
    decision: ask
    reason: "Modifying system service"

  - id: edit-shell-profile
    level: high
    match:
      command:
        any_of: [tee]
      args:
        any_of: ["~/.bashrc", "~/.zshrc", "~/.bash_profile", "~/.profile",
                  "~/.zprofile", "/etc/profile", "/etc/bash.bashrc"]
    decision: deny
    reason: "Modifying shell profile"

  # ============================================================
  # STRICT: Cautionary system operations
  # ============================================================
  - id: sudo-rm
    level: strict
    match:
      command: sudo
      args:
        any_of: ["rm"]
    decision: ask
    reason: "Running rm with elevated privileges"

  - id: crontab-remove
    level: strict
    match:
      command: crontab
      flags:
        any_of: ["-r"]
    decision: deny
    reason: "Removing all cron jobs"

  - id: longline-init
    level: high
    match:
      command: longline
      args: { any_of: ["init"] }
    decision: ask
    reason: "Extracting embedded rules to config directory"

  # ============================================================
  # CRITICAL: Redirect writes to system files
  # ============================================================
  - id: redirect-write-etc
    level: critical
    match:
      redirect:
        op:
          any_of: [">", ">>"]
        target:
          any_of: ["/etc/hosts", "/etc/passwd", "/etc/shadow", "/etc/sudoers",
                    "/etc/fstab", "/etc/resolv.conf", "/etc/profile",
                    "/etc/bash.bashrc", "/etc/sudoers.d/*"]
    decision: deny
    reason: "Redirect write to system configuration file"

  - id: redirect-write-device
    level: critical
    match:
      redirect:
        op:
          any_of: [">", ">>"]
        target:
          any_of: ["/dev/sda*", "/dev/nvme*", "/dev/vd*", "/dev/hd*",
                    "/dev/xvd*", "/dev/mmcblk*"]
    decision: deny
    reason: "Redirect write to disk device"