# Ports

> Check what's using shella ports (47100-47199). Use when debugging port conflicts or seeing what's running.

- Skill: `majiayu000/ports` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/ports`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/ports/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/ports

---


# Shella Port Check

Show what processes are using ports in the shella range.

## Port Ranges

- **47100**: Daemon API
- **47101-47199**: Plugin instances
- **47200**: Standalone plugin dev (`npm run dt dev plugin <name>`)

## Command

```bash
lsof -i :47100-47200 -P -n 2>/dev/null | grep LISTEN
```

## Output

Show a table of:
- Port number
- Process name
- PID
- What it likely is (daemon, plugin instance, standalone dev)

If nothing is listening, say so.

If there are unexpected processes (not node), flag them as potential conflicts.

