claudeaceae/.claude/skills/webhook

/webhook

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name: webhook description: Manage webhook sources - list, add, test, and view incoming events context: fork triggers:

• webhook
• add webhook
• create webhook
• webhook setup
• incoming webhooks

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Manage the webhook receiver system. Use this skill to add new webhook sources, test existing ones, and view incoming events.

What You Can Do

1. List sources - Show all registered webhook sources
2. Add source - Create a new webhook source with secure secret
3. Test source - Send a test webhook to verify configuration
4. View events - Show recent incoming webhook events
5. Setup guide - Get instructions for connecting external services

Quick Reference

Webhook Receiver

• Public URL: https://webhooks.organelle.co
• Config: macOS Keychain (credential get webhook-secrets)
• Events directory: ~/.claude-mind/system/senses/

Endpoints

| Endpoint | Method | Purpose | |----------|--------|---------| | /webhook/{source} | POST | Receive webhook from source | | /health | GET | Health check | | /status | GET | Show registered sources |

Instructions

When user wants to list sources

Read and display the webhook configuration:

~/.claude-mind/system/bin/credential get webhook-secrets | jq .

Also check service status:

curl -s https://webhooks.organelle.co/status | jq .

When user wants to add a new source

1. Ask for source name (lowercase, no spaces - e.g., "ifttt", "home-assistant", "backup-server")

2. Generate a secure secret:

openssl rand -hex 32

3. Read current config, add new source, write back:

The new source should have this structure:

{
  "secret": "<generated-secret>",
  "allowed_ips": null,
  "rate_limit": "30/minute"
}

For IP-restricted sources (more secure), ask if they want to limit to specific IPs.

4. Provide setup instructions based on the service type (see Setup Guides below)

When user wants to test a source

Generate and send a signed test webhook:

SOURCE="<source-name>"
SECRET=$(~/.claude-mind/system/bin/credential get webhook-secrets | jq -r ".sources.\"$SOURCE\".secret")
PAYLOAD='{"event":"test","message":"Test webhook from skill","timestamp":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'"}'
SIGNATURE=$(echo -n "$PAYLOAD" | openssl dgst -sha256 -hmac "$SECRET" | cut -d' ' -f2)

curl -s -X POST "https://webhooks.organelle.co/webhook/$SOURCE" \
  -H "Content-Type: application/json" \
  -H "X-Hub-Signature-256: sha256=$SIGNATURE" \
  -d "$PAYLOAD" | jq .

Then check the created event:

ls -lt ~/.claude-mind/system/senses/webhook-*.json | head -3

When user wants to view recent events

# List recent webhook events
ls -lt ~/.claude-mind/system/senses/webhook-*.json 2>/dev/null | head -10

# Show content of most recent
cat $(ls -t ~/.claude-mind/system/senses/webhook-*.json 2>/dev/null | head -1) | jq .

Setup Guides

Provide these instructions based on what service the user wants to connect:

IFTTT Setup

1. Create an IFTTT account at ifttt.com
2. Create a new Applet
3. For the "Then That" action, choose "Webhooks" > "Make a web request"
4. Configure:
   • URL: https://webhooks.organelle.co/webhook/ifttt
   • Method: POST
   • Content Type: application/json
   • Additional Headers: X-Webhook-Secret: <their-secret>
   • Body:

   {
     "trigger": "<<<{{EventName}}>>>",
     "occurred_at": "<<<{{OccurredAt}}>>>",
     "data": {}
   }
   

Note: IFTTT uses simple secret header, not HMAC signing.

GitHub Setup

1. Go to repository Settings > Webhooks > Add webhook
2. Configure:
   • Payload URL: https://webhooks.organelle.co/webhook/github
   • Content type: application/json
   • Secret: <their-secret>
   • Events: Choose which events to receive
3. GitHub automatically signs payloads with HMAC-SHA256

Home Assistant Setup

1. In configuration.yaml, add a REST command:

rest_command:
  notify_claude:
    url: "https://webhooks.organelle.co/webhook/home-assistant"
    method: POST
    headers:
      Content-Type: application/json
      X-Webhook-Secret: "<their-secret>"
    payload: '{"event": "{{ event }}", "data": {{ data | to_json }}}'

2. Call from automations:

service: rest_command.notify_claude
data:
  event: "motion_detected"
  data:
    location: "front_door"

iOS Shortcut Setup

Create a shortcut with "Get Contents of URL" action:

• URL: https://webhooks.organelle.co/webhook/shortcut
• Method: POST
• Headers:
  • Content-Type: application/json
  • X-Webhook-Secret: <their-secret>
• Request Body: JSON with your data

Generic / Custom Script

#!/bin/bash
SECRET="<your-secret>"
PAYLOAD='{"event":"your_event","data":{}}'
SIGNATURE=$(echo -n "$PAYLOAD" | openssl dgst -sha256 -hmac "$SECRET" | cut -d' ' -f2)

curl -X POST https://webhooks.organelle.co/webhook/your-source \
  -H "Content-Type: application/json" \
  -H "X-Hub-Signature-256: sha256=$SIGNATURE" \
  -d "$PAYLOAD"

Or simpler (less secure, but works):

curl -X POST https://webhooks.organelle.co/webhook/your-source \
  -H "Content-Type: application/json" \
  -H "X-Webhook-Secret: <your-secret>" \
  -d '{"event":"ping"}'

Authentication Methods

The webhook receiver supports two authentication methods:

1. HMAC-SHA256 Signature (Recommended)

Used by GitHub and security-conscious services. Send X-Hub-Signature-256 header:

X-Hub-Signature-256: sha256=<hmac-sha256-of-body-using-secret>

2. Direct Secret Header (Simpler)

For services that can't compute HMAC (like IFTTT). Send X-Webhook-Secret header:

X-Webhook-Secret: <your-secret>

Event Processing

Incoming webhooks become "sense events" in ~/.claude-mind/system/senses/. The SenseRouter picks these up and can:

• Trigger immediate attention for high-priority events
• Queue for next wake cycle
• Include in context for relevant conversations

Priority Mapping

You can customize priority in the webhook receiver's determine_priority() function, but defaults are:

| Source | Condition | Priority | |--------|-----------|----------| | GitHub | Security-related | immediate | | GitHub | PR/issue actions | normal | | Any | Default | normal |

Troubleshooting

Webhook not arriving

1. Check service is running:

curl -s https://webhooks.organelle.co/health | jq .

2. Check source is registered:

curl -s https://webhooks.organelle.co/status | jq .

3. Check logs:

tail -50 ~/.claude-mind/system/logs/webhook-receiver.log

Authentication failing

• For HMAC: Ensure payload bytes match exactly (no extra whitespace)
• For direct secret: Check header name is exactly X-Webhook-Secret
• Verify secret matches config file

IP blocked

If using IP allowlist, check the allowed_ips in config. Cloudflare IPs may differ from original source.