Agent skill

dev-server

Manage Next.js dev servers across worktrees. Start, stop, and read logs from dev servers. Agents can access logs from any running session, regardless of who started it.

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Install this agent skill to your Project

npx add-skill https://github.com/civitai/civitai/tree/main/.claude/skills/dev-server

SKILL.md

Dev Server Skill

Centralized management of Next.js dev servers across multiple git worktrees. The daemon handles port allocation, environment variable injection, and log aggregation so that any agent can access dev server logs regardless of who started the server.

Quick Start

bash
# Check what's running
node .claude/skills/dev-server/cli.mjs status

# Start a dev server for current worktree
node .claude/skills/dev-server/cli.mjs start

# Start for a specific worktree
node .claude/skills/dev-server/cli.mjs start /path/to/worktree

# View logs
node .claude/skills/dev-server/cli.mjs logs <session-id>

# Stop a session
node .claude/skills/dev-server/cli.mjs stop <session-id>

Checking if server is ready: After starting, poll the session status to check ready: true. The daemon marks sessions ready either via configured health check endpoint or by detecting "Ready" patterns in logs.

CLI Commands

Command Description
status Check daemon status and list all sessions
list List all dev sessions
start [worktree] Start dev server (default: current directory)
logs [session-id] Get logs for a session
tail [session-id] Tail logs continuously
stop <session-id> Stop a session
restart <session-id> Restart a session
shutdown Shutdown the daemon

Session Object

Each session includes:

json
{
  "id": "a1b2c3d4",
  "worktree": "/path/to/worktree",
  "branch": "feature/my-feature",
  "port": 3000,
  "status": "running",
  "ready": true,
  "readyAt": "2024-01-15T10:30:02.000Z",
  "startedAt": "2024-01-15T10:30:00.000Z",
  "url": "http://localhost:3000"
}

Status values: starting, running, stopped, crashed, error

Log Entries

json
{
  "index": 42,
  "timestamp": "2024-01-15T10:30:05.123Z",
  "level": "stdout",
  "message": "Ready on http://localhost:3000"
}

Log levels: stdout, stderr, error, warn, info

Dashboard TUI

Run node .claude/skills/dev-server/console.mjs (or npm run dev:daemon) for a live terminal dashboard.

Key Action
1 Filter: errors (error + warn levels)
2 Filter: bitdex
3 Filter: trpc
4 Filter: api
5 Filter: prisma
6 Filter: stdout only
7 Filter: stderr only
8 Filter: info (daemon messages)
/ or f Free-text search (type query, Enter to apply)
a Show all logs (clear filter)
r Restart session
c Clear log buffer
x Stop session + exit
q Quit dashboard (server keeps running)
K Kill daemon + quit

Filters toggle on/off. Active filter is highlighted in the footer bar. Search highlights matching text in red.

Notes

  • The daemon starts automatically when you run CLI commands
  • Sessions persist until explicitly stopped or the daemon shuts down
  • Logs are kept in memory (up to 2000 lines per session)

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