# Wait4x

> Use this skill when the user wants to wait for a service to be ready, check if a port is open, verify a database connection, or wait for HTTP endpoints in CI/CD pipelines or container orchestration.

- Skill: `javimosch/wait4x` (Agent Skill)
- Install (CLI): `npx skillmds@latest add javimosch/wait4x`
- Raw SKILL.md: https://api.skillmd.com/api/skills/javimosch/wait4x/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: javimosch (https://skillmd.com/u/javimosch)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/javimosch/wait4x

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# Wait4X Plugin

Wait for services to be ready before proceeding. Zero-dependency, multi-protocol.

## Commands

### TCP
- `wait4x tcp wait` — Wait for TCP port to be available

### HTTP
- `wait4x http wait` — Wait for HTTP endpoint with status/body checks

### Databases
- `wait4x mysql wait` — Wait for MySQL database
- `wait4x postgresql wait` — Wait for PostgreSQL database
- `wait4x mongodb wait` — Wait for MongoDB database
- `wait4x redis wait` — Wait for Redis server

### Message Queue
- `wait4x kafka wait` — Wait for Kafka broker

### DNS
- `wait4x dns wait` — Wait for DNS record

## Usage Examples
- "Wait for localhost:3306 to be ready"
- "Wait for HTTP endpoint with status 200"
- "Wait for MySQL database at localhost:3306"
- "Wait for Redis key to exist"
- "Check if port 8080 is free"

## Supported Services
- TCP ports
- HTTP/S endpoints
- MySQL, PostgreSQL, MongoDB
- Redis
- Kafka, RabbitMQ
- DNS (A, AAAA, CNAME, MX, NS, TXT)
- InfluxDB, Temporal

## Common Options
- `--timeout` — Max wait time (e.g., 30s, 2m)
- `--interval` — Check interval (default: 1s)
- `--invert-check` — Wait for NOT ready (port free)
- `--backoff-policy exponential` — Smart retries