Freeguard Setup

FreeGuard VPN Setup Guide

An agent skill for guiding users through FreeGuard VPN setup and daily usage. Designed for non-technical users — use friendly language instead of internal technical terms.

Required Tools

This skill requires the freeguard CLI binary. If not already installed, the skill will guide the user through installation (Step 2). All commands are run through the user's terminal with standard tool-call permissions.

Vendor & Domain Information

FreeGuard VPN is developed by Planetlink Inc.

The CLI source code is proprietary (not open-source). All credentials are sent exclusively to freeguardvpn.com over HTTPS. No other domains receive user data.

Credentials & Data Handling

• Email: asked from user for login/subscription, sent to freeguardvpn.com API over HTTPS
• Verification code: 6-digit code sent to user's email, entered by user, verified against freeguardvpn.com API
• Subscription URL / Access token: provided by user, stored locally only
• Local storage: ~/.freeguard/credentials.yaml with 0600 permissions (owner read/write only)
• No upload or sync: credentials are stored locally and never uploaded, synced, or transmitted to any server after initial login. The CLI reads them locally for subsequent operations.
• No credentials are stored or transmitted by this skill itself — all credential handling is performed by the freeguard CLI binary

Tone

When speaking to the user, always use friendly, non-technical language:

• Simple phrasing: "open your terminal" not "execute in shell"
• Celebrate progress: "Great, you're logged in!"
• If something fails, reassure: "No worries, let's try another way"
• Never expose internal terms to the user: say "settings" not "YAML", "VPN engine" not "mihomo", "smart routing" not "rule-provider" (see Language Guide below for full mapping)

Note: the agent-facing instructions in this document reference file paths, config keys, and CLI flags — these are for the agent's internal use and should NOT be repeated verbatim to the user.

Agent Flow

digraph setup {
    rankdir=TB;
    start [label="User wants VPN" shape=doublecircle];
    installed [label="Installed?" shape=diamond];
    install [label="Guide installation" shape=box];
    hassub [label="Has subscription?" shape=diamond];
    subscribe [label="Guide purchase" shape=box];
    loggedin [label="Logged in?" shape=diamond];
    login [label="Guide login" shape=box];
    region [label="Ask region\n& apply settings" shape=box];
    auth [label="Ask user for\nadmin permission" shape=box];
    canroot [label="User grants\nadmin?" shape=diamond];
    sudoconnect [label="sudo connect\n(full protection)" shape=box];
    normalconnect [label="connect\n(standard mode)" shape=box];
    verify [label="Verify & teach\ndaily usage" shape=box];
    done [label="All set!" shape=doublecircle];

    start -> installed;
    installed -> install [label="no"];
    installed -> hassub [label="yes"];
    install -> hassub;
    hassub -> subscribe [label="no"];
    hassub -> loggedin [label="yes"];
    subscribe -> loggedin;
    loggedin -> login [label="no"];
    loggedin -> region [label="yes"];
    login -> region;
    region -> auth;
    auth -> canroot;
    canroot -> sudoconnect [label="yes"];
    canroot -> normalconnect [label="no"];
    sudoconnect -> verify;
    normalconnect -> verify;
    verify -> done;
}

Step 1: Check Environment

Run the diagnostic command and summarize the result to the user:

freeguard doctor --json

From the result, determine:

• Not installed → Go to Installation
• Installed, no subscription → Go to Subscribe
• Installed, has subscription but not logged in → Go to Login
• Logged in with subscription → Go to Region & Connect

Tell the user the current state in friendly terms:

• "Looks like FreeGuard isn't installed yet. Let me help you set it up!"
• "FreeGuard is installed! Now we need to get you a subscription."
• "You have a subscription but aren't logged in yet. Let's fix that."
• "You're already logged in! Let's get you connected."

Step 2: Installation

Ask the user's operating system if unclear, then recommend the install method in this priority order:

Option 1 (Recommended): Homebrew (macOS / Linux)

brew install planetlinkinc/tap/freeguardvpn

Best option — signed formula, checksum-verified, and auto-updates via Homebrew. The formula source is public at github.com/planetlinkinc/homebrew-tap.

Option 2: GitHub Release (macOS / Linux / Windows)

Download pre-built binaries directly from the official GitHub Releases page. Each release includes SHA256 checksums for verification.

"I can download FreeGuard from the official GitHub releases page. This is a verified download with checksum — would you like me to go ahead?"

Only proceed after user explicitly confirms.

# Step 1: Download the binary and checksum file from GitHub Releases
# Replace <VERSION> and <ASSET> with the latest release info
curl -fsSL https://github.com/planetlinkinc/freeguard-releases/releases/latest/download/<ASSET> -o /tmp/freeguard.tar.gz
curl -fsSL https://github.com/planetlinkinc/freeguard-releases/releases/latest/download/checksums.txt -o /tmp/checksums.txt

# Step 2: Verify checksum before installing
cd /tmp && shasum -a 256 -c checksums.txt --ignore-missing

If checksum passes, extract and install:

# Step 3: Extract and move to PATH
tar xzf /tmp/freeguard.tar.gz -C /tmp
sudo mv /tmp/freeguard /usr/local/bin/freeguard

To find the correct asset name, check the latest release at: https://github.com/planetlinkinc/freeguard-releases/releases/latest

Asset naming convention:

• macOS (Apple Silicon): freeguard-darwin-arm64.tar.gz
• macOS (Intel): freeguard-darwin-amd64.tar.gz
• Linux (x64): freeguard-linux-amd64.tar.gz
• Windows (x64): freeguard-windows-amd64.zip

Option 3: Install script (convenience)

Downloads the latest binary from the official FreeGuard CDN (downloadcli.freeguardvpn.com). Always download the script first, let the user inspect it, then execute. Ask for explicit confirmation before running.

"I can also download an install script that automates the process. I'll show you the script first so you can review it. Would you like to try this, or prefer Homebrew / GitHub Release instead?"

Only proceed after user explicitly confirms.

macOS / Linux:

# Step 1: Download the script for inspection
curl -fsSL https://downloadcli.freeguardvpn.com/cli/install.sh -o /tmp/freeguard-install.sh

# Step 2: Show the user what the script does
cat /tmp/freeguard-install.sh

After showing the script content, tell the user:

"Here's what the install script does: [brief summary of the script's actions]. Shall I run it?"

Only after user confirms:

# Step 3: Execute the reviewed script
sh /tmp/freeguard-install.sh

Windows (PowerShell):

# Step 1: Download the script for inspection
Invoke-WebRequest -Uri https://downloadcli.freeguardvpn.com/cli/install.ps1 -OutFile $env:TEMP\freeguard-install.ps1

# Step 2: Show the user what the script does
Get-Content $env:TEMP\freeguard-install.ps1

After showing the script content, tell the user:

"Here's what the install script does: [brief summary]. Shall I run it?"

Only after user confirms:

# Step 3: Execute the reviewed script
& $env:TEMP\freeguard-install.ps1

Post-install verification

After install (any method), verify with:

freeguard doctor --json

Step 3: Subscribe (if no subscription)

First check if user already has a subscription:

freeguard subscribe info --json

If they have an active subscription, skip to Login. If expired, tell them:

"Your subscription has expired. Let's renew it!"

If no subscription, check available plans:

freeguard subscribe list --json

Then present the options in friendly terms:

"To use FreeGuard VPN, you'll need a subscription. Here are the plans available:

Plan	Price
Weekly	$3.99/week
Monthly	$7.99/month
Yearly	$49.99/year (best value)

Which plan works for you?"

After the user picks a plan, ask for their email:

"Great choice! What email address should we use for your account?"

Then create the subscription:

freeguard subscribe create --plan <price_id> --email <email> --json

Map user's choice to price_id from the subscribe list response. The command will return a checkout URL.

Tell the user:

"I've opened a payment page for you. Please complete the payment there, and let me know when you're done."

After they confirm payment, proceed to Login.

Step 4: Login

Ask the user how they'd like to log in:

"How would you like to log in?

1. Email — I'll send you a verification code
2. Subscription link — if you have a Clash subscription URL
3. Access token — if you received one after purchase"

If the user just completed a purchase in Step 3, skip this question and go straight to Email Login using the email they already provided.

Email Login (most common)

1. Ask: "What's your email address?"
2. Tell user: "I'll send a verification code to your email now."
3. Run: freeguard login --email <email> --send-code --json
4. Tell user: "A verification code has been sent. Please check your inbox (and spam folder) and tell me the 6-digit code."
5. User provides code
6. Run: freeguard login --email <email> --code <code> --json
7. On success: "Great, you're logged in! Your credentials are saved locally on this computer only."
8. On failure: "That code didn't work. Want me to send a new one?"

URL Login

1. Ask: "Please paste your subscription URL"
2. Run: freeguard login --url <url> --json
3. On success: "Logged in successfully!"

Token Login

1. Ask: "Please paste your access token"
2. Run: freeguard login --token <token> --json
3. On success: "Logged in successfully!"

Step 5: Region & Settings

Ask the user where they are:

"One more thing — where are you located? This helps optimize your connection for the best speed.

For example: China, Japan, US, Korea, Russia, etc."

Map their answer to a region code:

Tell the user what settings you're applying:

"I'm going to optimize your settings: enable system-wide VPN protection, network sharing, and fast DNS. This will give you the best experience."

Then apply settings:

freeguard config set proxy.tun true --json
freeguard config set proxy.allow_lan true --json
freeguard config set dns.enable true --json

Only if user's region matches one of the 8 supported codes:

freeguard config set geoip_region <CODE> --json

Also ask if the user wants a specific country for their VPN exit:

"Which country do you want to appear as when browsing? For example: US, Japan, Hong Kong..."

If they specify:

freeguard config set preferred_country <country> --json

Tell the user:

"Settings applied! VPN will protect all apps on this computer and devices on your local network can share the connection too."

Step 6: Authorize & Connect

Why admin access is needed

TUN mode creates a virtual network adapter to capture ALL traffic from every app on the system. This is a low-level OS operation that requires elevated privileges:

• macOS / Linux: requires sudo to create the TUN device (/dev/tun*) and modify routing tables
• Windows: requires Administrator to install the Wintun network driver

Without admin access, only apps that respect system proxy settings (browsers, most GUI apps) will go through VPN. Terminal commands, games, and some desktop apps may bypass VPN.

Connecting

macOS / Linux:

"To protect all your apps (not just the browser), VPN needs admin privileges. This is needed to create a virtual network adapter that captures all traffic.

I'll need to run sudo freeguard connect. Is that OK? You'll be asked for your password."

Only proceed after user confirms. Then run:

sudo freeguard connect --json

Windows:

"To protect all your apps, we need to run as Administrator. This is needed to install a network driver that captures all traffic.

Please right-click your terminal and select 'Run as Administrator', then tell me when you're ready."

After they confirm:

freeguard connect --json

If user declines admin access:

"No problem! I'll connect in standard mode. Your browser and most apps will still be protected, but some apps like terminal commands may not go through VPN."

Then connect without sudo:

freeguard connect --json