Bitwarden CLI Skill

The Bitwarden command-line interface (CLI) provides full access to your Bitwarden vault for retrieving passwords, secure notes, and other secrets programmatically.

Workflow Requirements

CRITICAL: Always run bw commands inside a dedicated tmux session. The CLI requires a session key (BW_SESSION) for all vault operations after authentication. A tmux session preserves this environment variable across commands.

Required Workflow

1. •Verify CLI installation: Run bw --version to confirm the CLI is available
2. •Create a dedicated tmux session: tmux new-session -d -s bw-session
3. •Attach and authenticate: Run bw login or bw unlock inside the session
4. •Export session key: After unlock, export BW_SESSION as instructed by the CLI
5. •Execute vault commands: Use bw get, bw list, etc. within the same session

Authentication Methods

After bw login with email/password, your vault is automatically unlocked. For API key or SSO login, you must subsequently run bw unlock to decrypt the vault.

Session Key Management

The unlock command outputs a session key. You must export it:

# Bash/Zsh
export BW_SESSION="<session_key_from_unlock>"

# Or capture automatically
export BW_SESSION=$(bw unlock --raw)

Session keys remain valid until you run bw lock or bw logout. They do not persist across terminal windows—hence the tmux requirement.

Reading Secrets

# Get password by item name
bw get password "GitHub"

# Get username
bw get username "GitHub"

# Get TOTP code
bw get totp "GitHub"

# Get full item as JSON
bw get item "GitHub"

# Get specific field
bw get item "GitHub" | jq -r '.fields[] | select(.name=="api_key") | .value'

# List all items
bw list items

# Search items
bw list items --search "github"

Security Guardrails

• •NEVER expose secrets in logs, code, or command output visible to users
• •NEVER write secrets to disk unless absolutely necessary
• •ALWAYS use bw lock when finished with vault operations
• •PREFER reading secrets directly into environment variables or piping to commands
• •If you receive "Vault is locked" errors, re-authenticate with bw unlock
• •If you receive "You are not logged in" errors, run bw login first
• •Stop and request assistance if tmux is unavailable on the system

Environment Variables

Self-Hosted Servers

For Vaultwarden or self-hosted Bitwarden:

bw config server https://your-bitwarden-server.com

Reference Documentation

• •Get Started Guide - Installation and initial setup
• •CLI Examples - Common usage patterns and advanced operations