feat(vpn): Proton VPN Hermes skill — CLI wrapper tools

Builds the proton-vpn skill per ARCHITECTURE.md section 6 with 9 tools:

Tools:
- proton_vpn_connect — connect with fastest/random/country/city/P2P/Tor/SC selection
- proton_vpn_disconnect — disconnect current session
- proton_vpn_status — check connection status (parse CLI output)
- proton_vpn_servers — list servers with filters (country, features)
- proton_vpn_killswitch — enable/disable kill switch
- proton_vpn_config — view/modify DNS, NetShield, protocol
- proton_vpn_login — initiate browser OAuth login
- proton_vpn_logout — clear credentials
- proton_vpn_refresh — refresh server list and config

Implementation:
- Python subprocess wrapper around official protonvpn-cli v1.0+
- Human-readable CLI output parsed into structured JSON
- Privilege check (protonvpn group) before privileged operations
- 30-60s timeouts with graceful error handling
- dispatch() entry point for Hermes tool routing

Also includes:
- scripts/install.sh — distro-aware dependency installer
- references/commands.md — CLI quick reference
- .gitignore — exclude __pycache__, env, debug files

Deviations from ARCHITECTURE.md noted in docs:
- CLI uses 'login' (browser OAuth), not 'init'
- No --json output — parsed from tables
- Install via Proton repos, not PyPI
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---
name: proton-vpn
description: Proton VPN management — connect, disconnect, status, server list, kill switch, and config via the official protonvpn-cli
version: 1.0.0
category: infra
platforms: [linux]
dependencies:
- protonvpn-cli (official Proton VPN Linux CLI)
- systemd-resolved (for DNS leak protection)
- gnome-keyring (for credential storage)
- NetworkManager (for connection management)
metadata:
hermes:
tags: [vpn, proton, network, privacy, security]
auth: independent — protonvpn-cli manages its own OAuth session
limitations:
- "Does NOT work on headless setups (requires gnome-keyring + NetworkManager)"
- "Cannot run alongside Proton VPN GUI app"
- "Split tunneling not yet available in CLI v1.0.1"
---
# Proton VPN Hermes Skill
A Hermes skill that wraps the official [Proton VPN Linux CLI](https://github.com/ProtonVPN/proton-vpn-cli) (`protonvpn-cli`) for agent use. Provides full VPN lifecycle management — connect, disconnect, status, server discovery, kill switch, and configuration.
## Installation
### Prerequisites
The skill shells out to `protonvpn-cli` v1.0.0+. Install it via the official Proton repositories:
```bash
# Debian/Ubuntu (add Proton repo first)
curl -1sLf 'https://repo.protonvpn.com/debian/dists/stable/main/signed.key' | sudo apt-key add -
sudo add-apt-repository 'deb https://repo.protonvpn.com/debian stable main'
sudo apt update && sudo apt install protonvpn-cli
# Fedora
sudo dnf install protonvpn-cli
# Arch (AUR)
yay -S protonvpn-cli
```
### Post-Install Setup
1. **Initial login** (requires a desktop session — browser OAuth):
```bash
protonvpn-cli login
```
First-time login opens a browser for OAuth. After that, the session persists.
2. **Verify installation**:
```bash
protonvpn-cli status
protonvpn-cli servers | head -10
```
3. **Ensure required services**:
```bash
systemctl status systemd-resolved # should be running
```
## Tools
### `proton_vpn_connect`
Connect to a Proton VPN server.
```json
{
"name": "proton_vpn_connect",
"description": "Connect to a Proton VPN server. Supports fastest, random, country, city, P2P, Tor, Secure Core, and free server selection.",
"parameters": {
"type": "object",
"properties": {
"server": {
"type": "string",
"description": "Server name or ID (e.g., 'US-NY#1'). Omitting uses default selection strategy."
},
"selection": {
"type": "string",
"enum": ["fastest", "random", "country", "city", "p2p", "tor", "free", "secure-core"],
"description": "Server selection strategy. 'fastest' (default): lowest latency. 'random': random server. 'country': fastest in specified country. 'p2p'/'tor'/'secure-core': feature-optimized."
},
"country": {
"type": "string",
"description": "Two-letter country code (e.g., 'US', 'CH', 'JP'). Only used when selection='country'."
},
"city": {
"type": "string",
"description": "City name (e.g., 'New York'). Only used when selection='city'."
},
"protocol": {
"type": "string",
"enum": ["wireguard", "openvpn_udp", "openvpn_tcp"],
"description": "VPN protocol. Default is WireGuard when available."
},
"persistent": {
"type": "boolean",
"description": "Auto-reconnect if the VPN connection drops."
}
}
}
}
```
**CLI mapping:**
- Fastest: `protonvpn-cli connect --fastest`
- Random: `protonvpn-cli connect --random`
- Country: `protonvpn-cli connect --country US --protocol wireguard`
- P2P: `protonvpn-cli connect --p2p`
- Server name: `protonvpn-cli connect US-NY#1`
**Returns:** JSON with connection status, server name, protocol, and IP.
---
### `proton_vpn_disconnect`
Disconnect the current VPN session.
```json
{
"name": "proton_vpn_disconnect",
"description": "Disconnect the current VPN session and restore normal network connectivity.",
"parameters": {}
}
```
**CLI mapping:** `protonvpn-cli disconnect`
**Returns:** JSON with confirmation message.
---
### `proton_vpn_status`
Get current VPN connection status.
```json
{
"name": "proton_vpn_status",
"description": "Check the current Proton VPN connection status — connected server, protocol, uptime, IP information.",
"parameters": {}
}
```
**CLI mapping:** `protonvpn-cli status`
**Returns:** JSON with connection state, server name, country, protocol, uptime, and local IP.
---
### `proton_vpn_servers`
List available Proton VPN servers with features and load.
```json
{
"name": "proton_vpn_servers",
"description": "List available Proton VPN servers. Shows country, city, current load percentage, and supported features (P2P, Tor, Secure Core).",
"parameters": {
"type": "object",
"properties": {
"country": {
"type": "string",
"description": "Filter by two-letter country code (e.g., 'US')."
},
"features": {
"type": "array",
"items": { "type": "string", "enum": ["p2p", "tor", "secure-core", "free"] },
"description": "Filter by required features."
},
"format": {
"type": "string",
"enum": ["table", "json"],
"description": "Output format. 'table': human-readable. 'json': machine-parseable."
}
}
}
}
```
**CLI mapping:** `protonvpn-cli servers` (table output, parsed to JSON)
**Returns:** JSON array of servers with name, country, city, load, features.
---
### `proton_vpn_killswitch`
Enable or disable the VPN kill switch.
```json
{
"name": "proton_vpn_killswitch",
"description": "Enable or disable the VPN kill switch. When enabled, all internet traffic is blocked outside the VPN tunnel, preventing data leaks if the VPN drops.",
"parameters": {
"type": "object",
"properties": {
"state": {
"type": "string",
"enum": ["on", "off"],
"description": "Kill switch state. 'on': enable (blocks non-VPN traffic). 'off': disable."
}
},
"required": ["state"]
}
}
```
**CLI mapping:** `protonvpn-cli settings --killswitch on|off`
**Returns:** JSON with kill switch state and confirmation.
---
### `proton_vpn_config`
View or modify VPN configuration.
```json
{
"name": "proton_vpn_config",
"description": "View current Proton VPN configuration or modify settings like DNS, NetShield, protocol preference, and VPN Accelerator.",
"parameters": {
"type": "object",
"properties": {
"action": {
"type": "string",
"enum": ["view", "set-dns", "set-netshield", "set-protocol"],
"description": "'view' (default): show current config. 'set-dns': set custom DNS servers. 'set-netshield': toggle NetShield ad-blocker. 'set-protocol': set preferred protocol."
},
"value": {
"type": "string",
"description": "Value for the setting. For 'set-dns': comma-separated IPs (e.g., '1.1.1.1,1.0.0.1'). For 'set-netshield': 'on', 'off', or 'strict'. For 'set-protocol': 'wireguard', 'openvpn_udp', or 'openvpn_tcp'."
}
}
}
}
```
**CLI mapping:**
- View: `protonvpn-cli config --list`
- Kill switch: `protonvpn-cli settings --killswitch on|off`
- NetShield: `protonvpn-cli settings --netshield on|off|strict`
- DNS: `protonvpn-cli settings --custom-dns <ip>`
**Returns:** JSON with configuration key-value pairs or confirmation message.
---
### `proton_vpn_login`
Authenticate with Proton VPN (browser OAuth).
```json
{
"name": "proton_vpn_login",
"description": "Authenticate with Proton VPN. Requires a desktop session to open a browser for OAuth login. Proton VPN CLI manages credentials after initial login.",
"parameters": {
"type": "object",
"properties": {
"username": {
"type": "string",
"description": "Proton account username/email."
}
}
}
}
```
**CLI mapping:** `protonvpn-cli login [username]`
**Note:** First-time login requires a browser for OAuth. The agent should warn users that this won't work in headless environments.
---
### `proton_vpn_logout`
Log out from Proton VPN.
```json
{
"name": "proton_vpn_logout",
"description": "Log out from Proton VPN. Clears stored credentials and disconnects if connected.",
"parameters": {}
}
```
**CLI mapping:** `protonvpn-cli logout`
---
### `proton_vpn_refresh`
Refresh server list and VPN configuration.
```json
{
"name": "proton_vpn_refresh",
"description": "Refresh the server list and VPN configuration from Proton's API. Useful after a network change or if servers appear outdated.",
"parameters": {}
}
```
**CLI mapping:** `protonvpn-cli refresh`
---
## Implementation
All tools shell out to `protonvpn-cli` via Python `subprocess`. The implementation module lives at `scripts/tools.py` in this skill directory.
### General Pattern
```python
import subprocess
import json
import shlex
def _run_vpn_command(args: list[str], timeout: int = 30) -> dict:
"""Run a protonvpn-cli command and return structured output."""
try:
result = subprocess.run(
["protonvpn-cli"] + args,
capture_output=True, text=True, timeout=timeout
)
if result.returncode != 0:
return {"error": result.stderr.strip(), "exit_code": result.returncode}
return {
"success": True,
"output": result.stdout.strip(),
"command": "protonvpn-cli " + " ".join(shlex.quote(a) for a in args)
}
except subprocess.TimeoutExpired:
return {"error": f"Command timed out after {timeout}s"}
except FileNotFoundError:
return {"error": "protonvpn-cli not found. Install via Proton repos."}
```
### Privilege Check
`protonvpn-cli` requires either root or membership in the `protonvpn` group for WireGuard interface creation. All tools should call a privilege check before executing:
```python
import os
def _check_vpn_privileges() -> dict | None:
"""Check if the current user can use protonvpn-cli. Returns error dict or None."""
if os.geteuid() == 0:
return None # root can always use it
import subprocess
groups_result = subprocess.run(["groups"], capture_output=True, text=True)
groups = groups_result.stdout.strip()
if "protonvpn" not in groups:
return {
"error": (
"User not in 'protonvpn' group. "
"Run: sudo usermod -aG protonvpn $USER && logout && login"
)
}
return None
```
### Output Parsing
The CLI outputs human-readable tables (not JSON). The tool parses output into structured JSON:
- `protonvpn-cli status` → parsed into connection state, server, protocol, uptime, IP
- `protonvpn-cli servers` → parsed into array of server objects
- `protonvpn-cli config --list` → parsed into key-value pairs
## Dependencies
| Dependency | Required | Notes |
|------------|----------|-------|
| `protonvpn-cli` (>=1.0.0) | Yes | Official Proton VPN CLI, v1.0.1 latest (Apr 2026). [GitHub](https://github.com/ProtonVPN/proton-vpn-cli) |
| `systemd-resolved` | Recommended | DNS leak protection via systemd-resolved |
| `gnome-keyring` | Recommended | Credential storage for initial login |
| `NetworkManager` | Required | VPN connection profiles managed via NetworkManager |
| `WireGuard` | Recommended | Default protocol; faster than OpenVPN |
| `OpenVPN` | Fallback | Alternative protocol when WireGuard unavailable |
## Limitations
1. **No headless support** — The CLI requires `gnome-keyring` and `NetworkManager`. It does not work on minimal server installs without a desktop environment.
2. **Cannot coexist with Proton VPN GUI** — Running both simultaneously causes conflicts.
3. **Split tunneling not yet available** — Feature is planned for a future release.
4. **Requires internet for login** — OAuth flow needs a browser.
5. **Kill switch uses iptables** — May conflict with other firewall rules. Verify carefully.
## Security
- Proton VPN CLI stores credentials in `gnome-keyring` (encrypted at rest)
- Connection logs: `~/.cache/Proton/VPN/logs/`
- Configuration: `~/.config/Proton/VPN/`
- The skill passes connection results and server lists back to the agent; no credentials are exposed
- Kill switch is system-level (iptables rules), not agent-level
## Related
- [Official Proton VPN CLI GitHub](https://github.com/ProtonVPN/proton-vpn-cli)
- [Proton VPN Linux CLI support page](https://protonvpn.com/support/linux-cli)
- [Hermes hardware keychain skill](https://github.com/NousResearch/hermes-agent) (example of subprocess skill pattern)
- [ARCHITECTURE.md](../../ARCHITECTURE.md) — Hermes-Proton integration design (section 6)

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# protonvpn-cli Reference — Commands Quick Reference
> Official Proton VPN Linux CLI (v1.0.0+)
> Source: https://github.com/ProtonVPN/proton-vpn-cli
> Support: https://protonvpn.com/support/linux-cli
## Installation
```bash
# Debian/Ubuntu
curl -fsSL 'https://repo.protonvpn.com/debian/dists/stable/main/signed.key' | \
sudo gpg --dearmor -o /usr/share/keyrings/protonvpn.gpg
echo "deb [signed-by=/usr/share/keyrings/protonvpn.gpg] https://repo.protonvpn.com/debian stable main" | \
sudo tee /etc/apt/sources.list.d/protonvpn.list
sudo apt update && sudo apt install protonvpn-cli
# Fedora
sudo dnf install protonvpn-cli
# Arch (AUR)
yay -S protonvpn-cli
```
## Login / Logout
| Command | Description |
|---------|-------------|
| `protonvpn-cli login [username]` | Authenticate via browser OAuth |
| `protonvpn-cli logout` | Clear credentials |
## Connect / Disconnect
| Command | Description |
|---------|-------------|
| `protonvpn-cli connect [servername]` | Connect to specific server |
| `protonvpn-cli connect --fastest` | Connect to lowest-latency server |
| `protonvpn-cli connect --random` | Connect to random server |
| `protonvpn-cli connect --country US` | Connect to fastest server in country |
| `protonvpn-cli connect --city "New York"` | Connect to fastest server in city |
| `protonvpn-cli connect --p2p` | Connect to fastest P2P server |
| `protonvpn-cli connect --tor` | Connect to fastest Tor server |
| `protonvpn-cli connect --free` | Connect to free server |
| `protonvpn-cli connect --secure-core` | Connect to Secure Core server |
| `protonvpn-cli connect --protocol wireguard` | Specify protocol |
| `protonvpn-cli connect --persistent` | Auto-reconnect if VPN drops |
| `protonvpn-cli disconnect` | Disconnect current session |
All connect options can be combined with `-p udp` or `-p tcp` to specify protocol
(for OpenVPN mode).
## Status & Info
| Command | Description |
|---------|-------------|
| `protonvpn-cli status` | Show connection status, server, uptime, IP |
| `protonvpn-cli servers` | List all servers with features and load |
## Settings & Config
| Command | Description |
|---------|-------------|
| `protonvpn-cli config --list` | Show current configuration |
| `protonvpn-cli settings --killswitch on` | Enable kill switch |
| `protonvpn-cli settings --killswitch off` | Disable kill switch |
| `protonvpn-cli settings --netshield on` | Enable NetShield (block malware) |
| `protonvpn-cli settings --netshield off` | Disable NetShield |
| `protonvpn-cli settings --netshield strict` | Strict NetShield mode |
| `protonvpn-cli settings --custom-dns 1.1.1.1` | Set custom DNS |
| `protonvpn-cli settings --protocol wireguard` | Set preferred protocol |
| `protonvpn-cli settings --dnsleak-protection on` | Enable DNS leak protection |
| `protonvpn-cli settings --dnsleak-protection off` | Disable DNS leak protection |
| `protonvpn-cli refresh` | Refresh server list and config |
## General
| Command | Description |
|---------|-------------|
| `protonvpn-cli --help` | Show help |
| `protonvpn-cli --version` | Show version |
| `protonvpn-cli --debug` | Enable verbose debug logging |
## Logs & Files
- **Logs:** `~/.cache/Proton/VPN/logs/`
- **Config:** `~/.config/Proton/VPN/`
- **Settings DB:** `~/.config/Proton/VPN/settings.json`
## Requirements
- Python 3
- systemd-resolved (for DNS leak protection)
- gnome-keyring (for credential storage)
- NetworkManager (for connection profiles)
- WireGuard kernel module (preferred protocol) or OpenVPN
## Known Limitations (v1.0.1)
- No headless support (requires gnome-keyring + NetworkManager)
- Cannot run alongside Proton VPN GUI app
- Split tunneling is not yet available
- First login requires a browser for OAuth
- Kill switch uses iptables (may conflict with other firewall rules)

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#!/usr/bin/env bash
#
# install.sh — Proton VPN CLI dependency installer for Hermes proton-vpn skill
#
# Installs the official Proton VPN Linux CLI on Debian/Ubuntu, Fedora, or Arch.
# Run as root or with sudo.
#
# Usage:
# sudo ./install.sh # auto-detect distro and install
# sudo ./install.sh --check # only check if already installed
#
set -euo pipefail
# ── colors ─────────────────────────────────────────────────────────────
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color
info() { echo -e "${BLUE}[INFO]${NC} $*"; }
ok() { echo -e "${GREEN}[OK]${NC} $*"; }
warn() { echo -e "${YELLOW}[WARN]${NC} $*"; }
err() { echo -e "${RED}[ERROR]${NC} $*"; }
# ── check if installed ─────────────────────────────────────────────────
check_installed() {
if command -v protonvpn-cli &>/dev/null; then
local version
version=$(protonvpn-cli --version 2>/dev/null || echo "unknown")
ok "protonvpn-cli is already installed (version: $version)"
return 0
fi
return 1
}
# ── detect distro ──────────────────────────────────────────────────────
detect_distro() {
if [ -f /etc/os-release ]; then
. /etc/os-release
echo "$ID"
elif command -v lsb_release &>/dev/null; then
lsb_release -is | tr '[:upper:]' '[:lower:]'
else
echo "unknown"
fi
}
# ── Debian/Ubuntu install ──────────────────────────────────────────────
install_debian() {
info "Adding Proton VPN repository..."
# Install prerequisites
apt-get update -qq
apt-get install -y -qq curl gnupg ca-certificates
# Add Proton VPN repo key and source
curl -fsSL 'https://repo.protonvpn.com/debian/dists/stable/main/signed.key' | \
gpg --dearmor -o /usr/share/keyrings/protonvpn.gpg
cat > /etc/apt/sources.list.d/protonvpn.list <<EOF
deb [signed-by=/usr/share/keyrings/protonvpn.gpg] https://repo.protonvpn.com/debian stable main
EOF
apt-get update -qq
apt-get install -y -qq protonvpn-cli
ok "protonvpn-cli installed via apt"
}
# ── Fedora install ─────────────────────────────────────────────────────
install_fedora() {
info "Installing protonvpn-cli via dnf..."
dnf install -y protonvpn-cli
ok "protonvpn-cli installed via dnf"
}
# ── Arch install ───────────────────────────────────────────────────────
install_arch() {
info "Installing protonvpn-cli from AUR (via yay)..."
if ! command -v yay &>/dev/null; then
err "yay (AUR helper) not found. Install yay first or use:"
err " git clone https://aur.archlinux.org/protonvpn-cli.git"
err " cd protonvpn-cli && makepkg -si"
exit 1
fi
yay -S --noconfirm protonvpn-cli
ok "protonvpn-cli installed via AUR"
}
# ── post-install setup ────────────────────────────────────────────────
post_install() {
info "Performing post-install setup..."
# Add user to protonvpn group (so CLI works without sudo)
if [ -n "${SUDO_USER:-}" ]; then
usermod -aG protonvpn "$SUDO_USER" 2>/dev/null || true
warn "User '$SUDO_USER' added to 'protonvpn' group."
warn "Log out and back in for group membership to take effect."
fi
# Check systemd-resolved
if systemctl is-active --quiet systemd-resolved 2>/dev/null; then
ok "systemd-resolved is running"
else
warn "systemd-resolved is not running. DNS leak protection may not work."
warn " Enable: sudo systemctl enable --now systemd-resolved"
fi
# Check NetworkManager
if systemctl is-active --quiet NetworkManager 2>/dev/null; then
ok "NetworkManager is running"
else
warn "NetworkManager is not running. protonvpn-cli requires it."
fi
# Check gnome-keyring
if command -v gnome-keyring-daemon &>/dev/null; then
ok "gnome-keyring found"
else
warn "gnome-keyring not found. Install it for credential storage."
warn " sudo apt install gnome-keyring # Debian/Ubuntu"
warn " sudo dnf install gnome-keyring # Fedora"
fi
echo ""
info "Setup complete! Run 'protonvpn-cli login' to authenticate."
info "Then try: protonvpn-cli status"
}
# ── main ───────────────────────────────────────────────────────────────
main() {
echo ""
echo " ┌─────────────────────────────────────┐"
echo " │ Proton VPN CLI — Hermes Skill Setup │"
echo " └─────────────────────────────────────┘"
echo ""
if [ "$1" = "--check" ]; then
check_installed
exit $?
fi
if check_installed; then
post_install
exit 0
fi
if [ "$(id -u)" -ne 0 ]; then
err "This script must be run as root (sudo ./install.sh)"
exit 1
fi
distro=$(detect_distro)
info "Detected distribution: $distro"
case "$distro" in
debian|ubuntu|linuxmint|pop|elementary|kali|zorin|mx)
install_debian
;;
fedora|rhel|centos)
install_fedora
;;
arch|manjaro|endeavouros|artix)
install_arch
;;
*)
err "Unsupported distro: $distro"
err "Manual installation: see https://protonvpn.com/support/linux-cli"
exit 1
;;
esac
post_install
}
main "${1:-install}"

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#!/usr/bin/env python3
"""
Proton VPN Hermes skill tool implementations.
All tools shell out to the official `protonvpn-cli` binary and parse
human-readable CLI output into structured JSON for agent consumption.
Requires: protonvpn-cli >= 1.0.0 (installed via Proton repos)
See SKILL.md for installation and setup instructions.
"""
import json
import os
import re
import shlex
import subprocess
from datetime import datetime
from typing import Any
# ── helpers ────────────────────────────────────────────────────────────
def _run_vpn(args: list[str], timeout: int = 30) -> dict:
"""Run a `protonvpn-cli` command and return a structured result dict."""
cmd = ["protonvpn-cli"] + args
try:
result = subprocess.run(
cmd, capture_output=True, text=True, timeout=timeout
)
out = result.stdout.strip()
err = result.stderr.strip()
if result.returncode != 0:
# The CLI often prints errors to stdout as well
return {
"success": False,
"exit_code": result.returncode,
"error": err or out,
"command": " ".join(shlex.quote(s) for s in cmd),
}
return {
"success": True,
"output": out,
"command": " ".join(shlex.quote(s) for s in cmd),
}
except subprocess.TimeoutExpired:
return {
"success": False,
"error": f"Command timed out after {timeout}s: {' '.join(shlex.quote(s) for s in cmd)}",
}
except FileNotFoundError:
return {
"success": False,
"error": (
"protonvpn-cli not found. Install via Proton repos:\n"
" https://protonvpn.com/support/linux-cli"
),
}
except OSError as exc:
return {
"success": False,
"error": str(exc),
}
def _check_vpn_privileges() -> dict | None:
"""
Check that the current user can use protonvpn-cli.
Returns an error dict if the user lacks privileges, or None if OK.
"""
if os.geteuid() == 0:
return None # root can always run VPN commands
try:
groups_out = subprocess.run(
["groups"], capture_output=True, text=True, timeout=5
).stdout.strip()
except Exception as exc:
return {"success": False, "error": f"Cannot check groups: {exc}"}
if "protonvpn" not in groups_out:
return {
"success": False,
"error": (
"User is not in the 'protonvpn' group. "
"Run: sudo usermod -aG protonvpn $USER && log out and back in."
),
}
return None
def _privilege_guard() -> dict | None:
"""Run privilege check and return a structured error if it fails."""
err = _check_vpn_privileges()
if err is not None:
return err
return None
# ── output parsers ─────────────────────────────────────────────────────
def _parse_status(raw: str) -> dict:
"""
Parse `protonvpn-cli status` output.
Typical output:
Status: Connected
Server: US-NY#123
Country: United States
City: New York
Protocol: WireGuard
Uptime: 47m 32s
Local IP: 192.168.1.42
Public IP: 10.2.3.4
"""
result = {"connected": False}
for line in raw.splitlines():
line = line.strip()
if not line or ":" not in line:
continue
key, _, value = line.partition(":")
key = key.strip().lower().replace(" ", "_")
value = value.strip()
if key == "status":
result["connected"] = value.lower() == "connected"
result["status"] = value
elif key == "server":
result["server_name"] = value
elif key == "country":
result["country"] = value
elif key == "city":
result["city"] = value
elif key == "protocol":
result["protocol"] = value
elif key == "uptime":
result["uptime"] = value
elif key == "local_ip":
result["local_ip"] = value
elif key == "public_ip":
result["public_ip"] = value
return result
def _parse_servers(raw: str) -> list[dict]:
"""
Parse `protonvpn-cli servers` output (table format).
The CLI outputs a table with columns like:
Server Name Country City Load Features
US-NY#123 United States New York 47% P2P
CH-ZR#45 Switzerland Zurich 12% Tor
JP-TK#78 Japan Tokyo 89% Secure Core
Note: the exact format may vary by version. This parser is heuristic.
"""
lines = raw.splitlines()
servers = []
header_found = False
for line in lines:
# Skip separators
if re.match(r"^[─\-\s]+$", line):
continue
# Skip empty lines and banner
if not line.strip() or line.strip().startswith("Server"):
header_found = True
continue
if not header_found:
continue
# Split on 2+ spaces (table columns)
parts = re.split(r"\s{2,}", line.strip())
if len(parts) < 3:
continue
entry = {
"name": parts[0].strip(),
"country": parts[1].strip() if len(parts) > 1 else "",
"city": parts[2].strip() if len(parts) > 2 else "",
}
if len(parts) > 3:
load_str = parts[3].strip().rstrip("%")
try:
entry["load_percent"] = int(load_str)
except ValueError:
entry["load_percent"] = None
else:
entry["load_percent"] = None
if len(parts) > 4:
features = [f.strip().lower() for f in parts[4].split(",") if f.strip()]
entry["features"] = features
else:
entry["features"] = []
servers.append(entry)
return servers
def _parse_config(raw: str) -> dict:
"""
Parse `protonvpn-cli config --list` or `protonvpn-cli settings` output.
Lines like:
Kill switch: enabled
NetShield: disabled
DNS leak protection: enabled
Protocol preference: wireguard
"""
config = {}
for line in raw.splitlines():
if ":" not in line:
continue
key, _, value = line.partition(":")
config[key.strip().lower().replace(" ", "_")] = value.strip()
return config
# ── tool handlers ──────────────────────────────────────────────────────
def proton_vpn_login(args: dict) -> dict:
"""
Authenticate with Proton VPN.
NOTE: This opens a browser for OAuth and requires a desktop session.
It will not work in headless environments.
"""
username = args.get("username", "")
cmd_args = ["login"]
if username:
cmd_args.append(username)
result = _run_vpn(cmd_args, timeout=60) # login can be slow (browser wait)
if not result["success"]:
return result
return {
"success": True,
"message": "Login initiated. Follow the browser prompt to authenticate.",
"output": result["output"],
"note": (
"Proton VPN CLI uses browser-based OAuth. "
"This requires a desktop session with a browser available."
),
}
def proton_vpn_logout(args: dict) -> dict:
"""Log out from Proton VPN, clearing stored credentials."""
priv = _privilege_guard()
if priv:
return priv
result = _run_vpn(["logout"])
if not result["success"]:
return result
return {
"success": True,
"message": "Logged out of Proton VPN. Credentials cleared.",
}
def proton_vpn_connect(args: dict) -> dict:
"""
Connect to a Proton VPN server.
Supports: fastest (default), random, country, city, P2P, Tor, Secure Core.
"""
priv = _privilege_guard()
if priv:
return priv
cmd_args = ["connect"]
selection = args.get("selection", "fastest")
# Server name takes precedence
server_name = args.get("server")
if server_name:
cmd_args.append(server_name)
elif selection == "fastest":
cmd_args.append("--fastest")
elif selection == "random":
cmd_args.append("--random")
elif selection == "country":
country = args.get("country")
if not country:
return {"success": False, "error": "country parameter required when selection='country'"}
cmd_args.append(f"--country={country}")
elif selection == "city":
city = args.get("city")
if not city:
return {"success": False, "error": "city parameter required when selection='city'"}
cmd_args.append(f"--city={city}")
elif selection == "p2p":
cmd_args.append("--p2p")
elif selection == "tor":
cmd_args.append("--tor")
elif selection == "free":
cmd_args.append("--free")
elif selection == "secure-core":
cmd_args.append("--secure-core")
# Optional protocol
protocol = args.get("protocol")
if protocol:
cmd_args.extend(["--protocol", protocol])
# Optional persistent flag
if args.get("persistent"):
cmd_args.append("--persistent")
result = _run_vpn(cmd_args, timeout=45)
if not result["success"]:
return result
return {
"success": True,
"action": "connect",
"selection": selection,
"message": result["output"],
}
def proton_vpn_disconnect(args: dict) -> dict:
"""Disconnect the current VPN session."""
priv = _privilege_guard()
if priv:
return priv
result = _run_vpn(["disconnect"])
if not result["success"]:
return result
return {
"success": True,
"action": "disconnect",
"message": "VPN disconnected.",
"output": result["output"],
}
def proton_vpn_status(args: dict) -> dict:
"""Get current VPN connection status."""
result = _run_vpn(["status"])
if not result["success"]:
return result
parsed = _parse_status(result["output"])
return {
"success": True,
**parsed,
}
def proton_vpn_servers(args: dict) -> dict:
"""List available Proton VPN servers."""
result = _run_vpn(["servers"], timeout=60)
if not result["success"]:
return result
servers = _parse_servers(result["output"])
# Apply filters
country_filter = args.get("country")
if country_filter:
country_upper = country_filter.upper()
servers = [s for s in servers if s.get("country", "").upper() == country_upper]
features_filter = args.get("features")
if features_filter:
if isinstance(features_filter, str):
features_filter = [features_filter]
features_lower = [f.lower() for f in features_filter]
servers = [
s
for s in servers
if any(f in [sf.lower() for sf in s.get("features", [])] for f in features_lower)
]
fmt = args.get("format", "json")
return {
"success": True,
"total": len(servers),
"servers": servers,
"format": fmt,
}
def proton_vpn_killswitch(args: dict) -> dict:
"""Enable or disable the VPN kill switch."""
priv = _privilege_guard()
if priv:
return priv
state = args.get("state", "").lower()
if state not in ("on", "off"):
return {
"success": False,
"error": "state must be 'on' or 'off'",
}
result = _run_vpn(["settings", f"--killswitch={state}"])
if not result["success"]:
return result
return {
"success": True,
"killswitch": state,
"message": f"Kill switch {state == 'on' and 'enabled' or 'disabled'}.",
"output": result["output"],
}
def proton_vpn_config(args: dict) -> dict:
"""View or modify VPN configuration."""
priv = _privilege_guard()
if priv:
return priv
action = args.get("action", "view")
if action == "view":
result = _run_vpn(["config", "--list"])
if not result["success"]:
return result
parsed = _parse_config(result["output"])
return {
"success": True,
"action": "view",
"config": parsed,
}
value = args.get("value", "")
if action == "set-dns":
result = _run_vpn(["settings", f"--custom-dns={value}"])
elif action == "set-netshield":
if value not in ("on", "off", "strict"):
return {"success": False, "error": "NetShield value must be 'on', 'off', or 'strict'"}
result = _run_vpn(["settings", f"--netshield={value}"])
elif action == "set-protocol":
if value not in ("wireguard", "openvpn_udp", "openvpn_tcp"):
return {"success": False, "error": "Protocol must be 'wireguard', 'openvpn_udp', or 'openvpn_tcp'"}
result = _run_vpn(["settings", f"--protocol={value}"])
else:
return {"success": False, "error": f"Unknown action: {action}"}
if not result["success"]:
return result
return {
"success": True,
"action": action,
"value": value,
"message": f"Configuration updated: {action} = {value}",
}
def proton_vpn_refresh(args: dict) -> dict:
"""Refresh server list and VPN config from Proton's API."""
priv = _privilege_guard()
if priv:
return priv
result = _run_vpn(["refresh"], timeout=60)
if not result["success"]:
return result
return {
"success": True,
"message": "Server list and configuration refreshed.",
"output": result["output"],
}
# ── tool registry ──────────────────────────────────────────────────────
TOOLS: dict[str, dict[str, Any]] = {
"proton_vpn_login": {
"handler": proton_vpn_login,
"schema": {
"name": "proton_vpn_login",
"description": "Authenticate with Proton VPN. Requires a desktop session for browser OAuth.",
"parameters": {
"type": "object",
"properties": {
"username": {
"type": "string",
"description": "Proton account username/email (optional)."
}
}
}
}
},
"proton_vpn_logout": {
"handler": proton_vpn_logout,
"schema": {
"name": "proton_vpn_logout",
"description": "Log out from Proton VPN. Clears stored credentials and disconnects.",
"parameters": {"type": "object", "properties": {}}
}
},
"proton_vpn_connect": {
"handler": proton_vpn_connect,
"schema": {
"name": "proton_vpn_connect",
"description": "Connect to a Proton VPN server. Supports fastest, random, country, city, P2P, Tor, Secure Core, and free server selection.",
"parameters": {
"type": "object",
"properties": {
"server": {
"type": "string",
"description": "Server name or ID (e.g., 'US-NY#1')."
},
"selection": {
"type": "string",
"enum": ["fastest", "random", "country", "city", "p2p", "tor", "free", "secure-core"],
"description": "Server selection strategy. Default: fastest."
},
"country": {
"type": "string",
"description": "Two-letter country code (e.g., 'US'). Used with selection='country'."
},
"city": {
"type": "string",
"description": "City name (e.g., 'New York'). Used with selection='city'."
},
"protocol": {
"type": "string",
"enum": ["wireguard", "openvpn_udp", "openvpn_tcp"],
"description": "VPN protocol."
},
"persistent": {
"type": "boolean",
"description": "Auto-reconnect on disconnect."
}
}
}
}
},
"proton_vpn_disconnect": {
"handler": proton_vpn_disconnect,
"schema": {
"name": "proton_vpn_disconnect",
"description": "Disconnect the current VPN session and restore normal network connectivity.",
"parameters": {"type": "object", "properties": {}}
}
},
"proton_vpn_status": {
"handler": proton_vpn_status,
"schema": {
"name": "proton_vpn_status",
"description": "Check current VPN connection status — server, protocol, uptime, IP information.",
"parameters": {"type": "object", "properties": {}}
}
},
"proton_vpn_servers": {
"handler": proton_vpn_servers,
"schema": {
"name": "proton_vpn_servers",
"description": "List available Proton VPN servers with country, city, load, and features.",
"parameters": {
"type": "object",
"properties": {
"country": {
"type": "string",
"description": "Filter by two-letter country code (e.g., 'US')."
},
"features": {
"type": "array",
"items": {
"type": "string",
"enum": ["p2p", "tor", "secure-core", "free"]
},
"description": "Filter by required features."
},
"format": {
"type": "string",
"enum": ["table", "json"],
"description": "Output format. 'json' (default) returns structured data."
}
}
}
}
},
"proton_vpn_killswitch": {
"handler": proton_vpn_killswitch,
"schema": {
"name": "proton_vpn_killswitch",
"description": "Enable or disable the VPN kill switch. When enabled, all internet traffic is blocked outside the VPN tunnel.",
"parameters": {
"type": "object",
"properties": {
"state": {
"type": "string",
"enum": ["on", "off"],
"description": "Kill switch state."
}
},
"required": ["state"]
}
}
},
"proton_vpn_config": {
"handler": proton_vpn_config,
"schema": {
"name": "proton_vpn_config",
"description": "View current Proton VPN configuration or modify DNS, NetShield, and protocol settings.",
"parameters": {
"type": "object",
"properties": {
"action": {
"type": "string",
"enum": ["view", "set-dns", "set-netshield", "set-protocol"],
"description": "'view' (default): show config. 'set-*': modify setting."
},
"value": {
"type": "string",
"description": "Setting value. For DNS: comma-separated IPs. For NetShield: 'on'/'off'/'strict'. For protocol: 'wireguard'/'openvpn_udp'/'openvpn_tcp'."
}
}
}
}
},
"proton_vpn_refresh": {
"handler": proton_vpn_refresh,
"schema": {
"name": "proton_vpn_refresh",
"description": "Refresh server list and VPN configuration from Proton's API.",
"parameters": {"type": "object", "properties": {}}
}
},
}
def dispatch(tool_name: str, args: dict | None = None) -> str:
"""
Dispatch a tool by name with the given arguments.
Returns a JSON string (Hermes tools return strings, not dicts).
"""
if args is None:
args = {}
tool = TOOLS.get(tool_name)
if tool is None:
return json.dumps({
"success": False,
"error": f"Unknown tool: {tool_name}. Available: {', '.join(sorted(TOOLS.keys()))}",
})
try:
result = tool["handler"](args)
return json.dumps(result, indent=2, default=str)
except Exception as exc:
return json.dumps({
"success": False,
"error": f"{tool_name} raised: {exc}",
}, indent=2)
# ── CLI entry point (for testing) ──────────────────────────────────────
def main():
"""CLI entry point for testing tools from the command line."""
import sys
if len(sys.argv) < 2:
print(f"Usage: {sys.argv[0]} <tool_name> [json_args]")
print(f"Tools: {', '.join(sorted(TOOLS.keys()))}")
sys.exit(1)
tool_name = sys.argv[1]
args = {}
if len(sys.argv) > 2:
try:
args = json.loads(sys.argv[2])
except json.JSONDecodeError as exc:
print(json.dumps({"error": f"Invalid JSON args: {exc}"}))
sys.exit(1)
result = dispatch(tool_name, args)
print(result)
if __name__ == "__main__":
main()

View file

@ -0,0 +1,23 @@
#!/usr/bin/env python3
"""Verify proton-vpn skill module loads and all tools are registered."""
import sys
sys.path.insert(0, 'skills/proton-vpn/scripts')
import tools
import json
# Verify all tools are in registry
print("=== Tool Registry ===")
for name, info in sorted(tools.TOOLS.items()):
params = info["schema"].get("parameters", {}).get("properties", {})
print(f"{name}{len(params)} params")
print(f"\nTotal tools: {len(tools.TOOLS)}")
# Test dispatch for error cases (no CLI installed = expected)
result = json.loads(tools.dispatch('proton_vpn_status'))
print(f"\nStatus dispatch (expected error — no CLI): success={result.get('success')}")
print(f" error={result.get('error', '')[:120]}")
result2 = json.loads(tools.dispatch('nonexistent'))
print(f"\nNonexistent tool: error={result2.get('error', '')[:80]}")