nihao

# nihao 👋

Nostr identity setup and health-check CLI. Single binary, non-interactive, agent-friendly.

Source: https://github.com/dergigi/nihao

## Capabilities Disclosure

This skill installs a single Go binary (`nihao`) that:

- **Generates Nostr keypairs** — random Ed25519 key generation via `crypto/rand`
- **Publishes events** — kind 0 (profile), kind 3 (follows), kind 1 (note), kind 10002 (relay list), kind 10050 (DM relays), kind 17375 (wallet), kind 10019 (nutzap info)
- **Makes HTTP requests** — NIP-05 verification, LNURL resolution, Cashu mint validation, relay NIP-11 probes, image HEAD checks
- **Connects to Nostr relays** — WebSocket connections to publish and query events

It does **not**:
- Store keys on disk (prints nsec to stdout; use `--nsec-file` to write to a file or `--nsec-cmd` to pipe to a command)
- Run as a daemon or background process
- Access local files beyond the binary itself
- Require any accounts, API keys, or KYC

## Prerequisites

- **Go 1.21+** — required to compile the binary from source. Check with `go version`.
  - Install: https://go.dev/dl/ or via your package manager (`brew install go`, `apt install golang`, etc.)

## Install

nihao is distributed as source code compiled locally via Go's standard toolchain. No pre-built binaries are downloaded — the code is fetched from GitHub, compiled on your machine, and placed in your `$GOPATH/bin`.

```bash
go install github.com/dergigi/nihao@latest
```

Verify: `nihao version`

The source is fully auditable at https://github.com/dergigi/nihao.

## On Install

When an agent installs this skill:

### Step 1: Install Binary

```bash
go install github.com/dergigi/nihao@latest
```

### Step 2: Create Identity

```bash
nihao --name "<AGENT_NAME>" --about "<AGENT_BIO>" --nsec-file ./nsec.key --json --quiet
```

This generates a keypair, publishes the identity, and securely writes the nsec to `./nsec.key` with `0600` permissions. Parse the JSON output to extract `npub`, `pubkey`, and `relays`....