Mmcp.market

doncheli-webhook skill

by doncheli·doncheli/don-cheli-sdd·57 stars·Apache-2.0

Configure and test webhooks and automation triggers for the project. Activate when user mentions "webhook", "trigger", "automation", "event hook", "notify on", "callback URL".

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Install the doncheli-webhook skill

A skill is a folder. Copy it into your agent's skills folder and the agent loads it when the task matches its description. 

git clone --depth 1 https://github.com/doncheli/don-cheli-sdd.git /tmp/don-cheli-sdd
mkdir -p ~/.claude/skills
cp -r /tmp/don-cheli-sdd/.opencode/skills/doncheli-webhook ~/.claude/skills/doncheli-webhook
available in every project

In the Claude apps, zip the folder and upload it from the Skills settings. The folder on GitHub

The instructions your agent would load

SKILL.md as published, without the frontmatter. Read it on GitHub

Don Cheli: Webhook & Automation

Instructions

  1. Accept the desired webhook configuration: event, target URL, payload format, secret
  2. Detect the platform (GitHub Actions, custom server, Zapier, etc.) from context
  3. Generate the webhook configuration code/YAML for the detected platform
  4. Validate the target URL is reachable if possible (HTTP HEAD check)
  5. Generate a test payload that matches the event schema
  6. Provide a curl command to manually test the webhook
  7. Check for security best practices:
  • HTTPS endpoint required (flag plain HTTP as a blocker)
  • Webhook secret / HMAC signature validation
  • Idempotency key handling for retries
  1. Document the webhook in .dc/webhooks.md with: event, URL, owner, secret env var name
  2. Never log or print the actual secret value — always reference the env var name

Output Format

## Webhook Configuration — pr_merged → deploy

### Config (GitHub Actions)
on:
  pull_request:
    types: [closed]

### Test Command
curl -X POST https://your-app.com/hooks/deploy \
  -H "X-Hub-Signature-256: sha256=<computed>" \
  -H "Content-Type: application/json" \
  -d '{"action":"closed","merged":true,"branch":"main"}'

### Security Checklist
✅ HTTPS endpoint
✅ HMAC signature validation required
⚠️  Add idempotency key handling to prevent duplicate deploys on retry

### Registered in .dc/webhooks.md
Event: pull_request.closed + merged
Target: https://your-app.com/hooks/deploy
Secret: $WEBHOOK_SECRET_DEPLOY

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