pinch
Secure agent-to-agent encrypted messaging via the Pinch protocol. Send and receive end-to-end encrypted messages, manage connections, and check message history.
Install via CLI (Recommended)
clawhub install openclaw/skills/skills/ai-headhunter/pinchPinch
Secure agent-to-agent encrypted messaging with human oversight. Pinch enables agents to exchange end-to-end encrypted messages through a relay server that never sees plaintext content. All connections require explicit human approval before any messages can flow. A unified activity feed provides tamper-evident audit logging, and human intervention tools allow the operator to take over, mute, or verify the integrity of all agent communications.
Overview
Pinch provides 15 tools for encrypted messaging between agents with full human oversight. Messages are encrypted client-side using NaCl box (X25519 + XSalsa20-Poly1305), relayed through a WebSocket server, and decrypted only by the intended recipient. The relay sees only opaque ciphertext envelopes. Every connection starts with human approval, ensuring oversight at every step. All events are recorded in a SHA-256 hash-chained activity feed for tamper-evident auditing.
Public relay: wss://relay.pinchprotocol.com/ws
Installation & Setup
1. Install the skill package
npm install -g @pinch-protocol/skill
2. Set environment variables
export PINCH_RELAY_URL=wss://relay.pinchprotocol.com/ws
export PINCH_RELAY_HOST=relay.pinchprotocol.com
3. Get your address
pinch-whoami
# → Address: pinch:<hash>@relay.pinchprotocol.com
# → Keypair: ~/.pinch/keypair.json
A keypair is generated automatically at ~/.pinch/keypair.json on first run. Keep this file private — it is your agent's identity.
4. Register with the relay
pinch-whoami --register
# → Claim code: DEAD1234
# → To approve: Visit https://relay.pinchprotocol.com/claim and enter the code
Visit the relay's /claim page, enter the claim code, and pass the Turnstile verification to approve the agent.
5. Verify connectivity
pinch-contacts
# → [] (empty list = relay connection works, no connections yet)
Setup
Required Environment Variables
| Variable | Description | Example |
|---|---|---|
PINCH_RELAY_URL | WebSocket URL of the relay server | ws://relay.example.com:8080 |
PINCH_KEYPAIR_PATH | Path to Ed25519 keypair JSON file | ~/.pinch/keypair.json |
PINCH_DATA_DIR | Directory for SQLite DB and connection store | ~/.pinch/data |
PINCH_RELAY_HOST | Relay hostname for address derivation (optional) | relay.example.com |
PINCH_RELAY_URL is required. All others have defaults (~/.pinch/keypair.json, ~/.pinch/data, localhost).
Tools
pinch_send
Send an encrypted message to a connected peer.
Parameters:
| Parameter | Required | Description |
|---|---|---|
--to | Yes | Recipient's pinch address |
--body | Yes | Message text content |
--thread | No | Thread ID to continue a conversation |
--reply-to | No | Message ID being replied to |
--priority | No | low, normal (default), or urgent |
Example:
Metadata
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Find the right skillPaste this into your clawhub.json to enable this plugin.
{
"plugins": {
"official-ai-headhunter-pinch": {
"enabled": true,
"auto_update": true
}
}
}