port-manager（港口经理）

Port Manager Skill

Intelligently manage system port usage and avoid conflicts.

Features

1. Record Port (--record)

Record a port when starting a service:

Port record <service_name> <port>
Example: port record postgres 5432

2. Query Port (--query)

Check usage of a specific port:

Port query 5432

3. List All Ports (--list)

Show all recorded services and ports:

Port list

4. Free Port (--free)

Release an occupied port (terminate the process):

Port free 5432

5. Check and Resolve Conflicts (--check)

Check if a port is occupied, and ask user if they want to free it:

Port check 5432

6. Auto Port Allocation (--allocate)

When port is occupied, automatically allocate an available port:

Port allocate <service_name> [preferred_port]

File Location

• Port records: ~/.openclaw/workspace/.port-manager/ports.json

Usage Scenarios

1. Check before installing software

- Check port 5432 before installing PostgreSQL - If occupied, ask user whether to free it

1. Service startup recording

- Record ports like 2375, 5432 when starting Docker - Quickly see which services should run after restart

1. Port conflict resolution

- Two services fighting for the same port - Auto-assign new port or free old port

Command Examples

# Record ports
port record mysql 3306
port record redis 6379
port record postgres 5432

# List all
port list

# Check port
port check 8080

# Free port
port free 5432

# Auto allocate
port allocate nginx 80

Implementation

Use lsof and netstat to check ports:

# Check port usage
lsof -i :5432

# Kill process
kill $(lsof -t -i :5432)