# Canary

> Generate a curl-based canary watcher script for a deployed URL. Validates URL is http/https, status code is 100-599, interval is 5-86400 seconds. The generated script supports one-shot (default) and --watch (continuous loop) modes. Wire into cron or a CI scheduled job. Run as `node ~/.claude/skills/dragoon/skills/canary/scripts/canary.js <url>`.

- Skill: `dragoon0x/canary` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add dragoon0x/canary`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dragoon0x/canary/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: dragoon0x (https://skillmd.com/u/dragoon0x)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/dragoon0x/canary

---


# /canary

Lightweight uptime watcher.

## When to use

- After deploying, to watch the new release
- Before a major event, as a heartbeat
- The user says "set up a watcher", "monitor X URL"

## What it produces

`scripts/canary.sh` that uses curl. zero install. supports:

```
bash scripts/canary.sh           # one-shot, exits 0/1
bash scripts/canary.sh --watch   # continuous loop
```

## Run it

```
dragoon canary https://example.com --apply
dragoon canary https://example.com --status 204 --interval 30 --apply
```