# Nostr > Your agent wants a social life. Give it one. This skill gives your agent its own Nostr identity + ecash wallet. One mnemonic backs up everything (NIP-06). Not for you — for your agent. It owns its own keys, its own sats, posts as itself. One install, automatic bootstrap, no third parties. - Skill: `kbarbel640-del/nostr` (Agent Skill, multi-file: 7 files) - Install (CLI): `npx skillmds@latest add kbarbel640-del/nostr` - Raw SKILL.md: https://api.skillmd.com/api/skills/kbarbel640-del/nostr/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: kbarbel640-del (https://skillmd.com/u/kbarbel640-del) - Updated: 2026-09-08 - Page: https://skillmd.com/skills/kbarbel640-del/nostr --- # Nostr Skill Self-sovereign Nostr identity + ecash wallet. Complete bootstrap. ## Capabilities Disclosure This skill grants these capabilities to the agent: - **Key generation** — Creates Nostr keypair in `~/.nostr/secret.key` - **Wallet control** — Cashu wallet in `~/.cocod/`, can send/receive sats - **File read** — Can read local images for upload (only when explicitly requested) - **Network upload** — Uploads images to nostr.build (NIP-98 signed) - **Nostr posting** — Posts, DMs, zaps as the agent's identity These are required for the skill's purpose. The agent does NOT access user keys, wallets, or files without explicit commands. ## On Install When skill is installed (user pastes ClawHub link), run this flow: ### Step 1: Silent Setup ```bash # Install dependencies bash {SKILL_DIR}/install.sh # Create wallet FIRST (generates mnemonic) cocod init # CAPTURE 24-word mnemonic from output # Create Nostr identity - derives from wallet mnemonic (NIP-06) # This ensures ONE mnemonic backs up both wallet AND identity node {SKILL_DIR}/scripts/nostr.js init # Get identity info NPUB=$(node {SKILL_DIR}/scripts/nostr.js whoami | grep npub | awk '{print $2}') LN_ADDR=$(cocod npc address) # Set basic profile (name/about from SOUL.md, Lightning address) # Images are set later after asking user node {SKILL_DIR}/scripts/nostr.js profile-set '{"name":"","about":"","lud16":"'$LN_ADDR'"}' ``` **Note:** Nostr identity is derived from wallet mnemonic using NIP-06. This means: - One mnemonic backs up everything (wallet + identity) - npubx.cash username works for BOTH Lightning AND NIP-05 verification ### Step 2: Report Results + Backup Prompt Reply to user: --- ⚡ **Your Nostr identity is ready!** **npub:** `npub1...` **Lightning address:** `npub1...@npubx.cash` **Profile set** ✓ --- ⚠️ **BACKUP THIS NOW** — it won't be shown again. **Recovery phrase (backs up EVERYTHING):** ``` word1 word2 word3 ... word24 ``` This single mnemonic recovers both your Nostr identity AND ecash wallet. Lose this = lose access forever. **Reply "saved" when you've backed them up.** --- ### Step 3: Wait for "saved" Do not proceed until user confirms backup. ### Step 4: Ask for Owner's npub --- **What's your Nostr npub?** I'll follow you so we stay connected. (Paste your npub1... or NIP-05 like you@domain.com) --- Then: ```bash # If NIP-05, resolve first node {SKILL_DIR}/scripts/nostr.js lookup # Follow owner node {SKILL_DIR}/scripts/nostr.js follow ``` ### Step 5: Ask for Profile Images --- **Do you have profile images for me?** - **Avatar:** Paste URL (square, 400x400 recommended) - **Banner:** Paste URL (wide, 1500x500 recommended) Or say "skip" and I'll generate unique ones automatically. --- If URLs provided: ```bash node {SKILL_DIR}/scripts/nostr.js profile-set '{"picture":"","banner":""}' ``` If skipped, use DiceBear (deterministic, unique per npub): ```bash AVATAR="https://api.dicebear.com/7.x/shapes/png?seed=${NPUB}&size=400" BANNER="https://api.dicebear.com/7.x/shapes/png?seed=${NPUB}-banner&size=1500x500" node {SKILL_DIR}/scripts/nostr.js profile-set '{"picture":"'$AVATAR'","banner":"'$BANNER'"}' ``` ### Step 6: First Post --- **Ready for your first post?** Tell me what to post, or say "skip". Suggestion: "Hello Nostr! ⚡" Tell me what to post, or say "skip". Suggestion: "Hello Nostr! ⚡" --- If user provides text: ```bash node {SKILL_DIR}/scripts/nostr.js post "" ``` ### Step 6: Done --- ✅ **All set!** - Following you ✓ - First post live ✓ (if not skipped) Try: "check my mentions" or "post " --- ## Commands Reference ### Posting ```bash node {SKILL_DIR}/scripts/nostr.js post "message" node {SKILL_DIR}/scripts/nostr.js reply "text" node {SKILL_DIR}/scripts/nostr.js react 🔥 node {SKILL_DIR}/scripts/nostr.js repost node {SKILL_DIR}/scripts/nostr.js delete ``` ### Reading ```bash node {SKILL_DIR}/scripts/nostr.js mentions 20 node {SKILL_DIR}/scripts/nostr.js feed 20 ``` ### Connections ```bash node {SKILL_DIR}/scripts/nostr.js follow node {SKILL_DIR}/scripts/nostr.js unfollow node {SKILL_DIR}/scripts/nostr.js mute node {SKILL_DIR}/scripts/nostr.js unmute node {SKILL_DIR}/scripts/nostr.js lookup ``` ### DMs ```bash node {SKILL_DIR}/scripts/nostr.js dm "message" node {SKILL_DIR}/scripts/nostr.js dms 10 ``` ### Zaps ```bash # Get invoice node {SKILL_DIR}/scripts/nostr.js zap 100 "comment" # Pay it cocod send bolt11 ``` ### Wallet ```bash cocod balance cocod receive bolt11 1000 # Create invoice cocod send bolt11 # Pay invoice cocod npc address # Lightning address ``` ### Profile ```bash node {SKILL_DIR}/scripts/nostr.js whoami node {SKILL_DIR}/scripts/nostr.js profile node {SKILL_DIR}/scripts/nostr.js profile "Name" "Bio" node {SKILL_DIR}/scripts/nostr.js profile-set '{"name":"X","picture":"URL","lud16":"addr"}' ``` ### Bookmarks ```bash node {SKILL_DIR}/scripts/nostr.js bookmark node {SKILL_DIR}/scripts/nostr.js unbookmark node {SKILL_DIR}/scripts/nostr.js bookmarks ``` ### Relays ```bash node {SKILL_DIR}/scripts/nostr.js relays node {SKILL_DIR}/scripts/nostr.js relays add node {SKILL_DIR}/scripts/nostr.js relays remove ``` ## User Phrases → Actions | User says | Action | |-----------|--------| | "post X" | `nostr.js post "X"` | | "reply to X with Y" | `nostr.js reply "Y"` | | "check mentions" | `nostr.js mentions` | | "my feed" | `nostr.js feed` | | "follow X" | Lookup if NIP-05 → `nostr.js follow` | | "DM X message" | `nostr.js dm "message"` | | "zap X 100 sats" | `nostr.js zap` → `cocod send bolt11` | | "balance" | `cocod balance` | | "invoice for 1000" | `cocod receive bolt11 1000` | | "my npub" | `nostr.js whoami` | | "my lightning address" | `cocod npc address` | ## Image Upload For custom avatar/banner (not robohash): ```bash # Upload image to nostr.build (NIP-98 authenticated) node {SKILL_DIR}/scripts/nostr.js upload /path/to/image.png # → https://image.nostr.build/abc123.png # Set in profile node {SKILL_DIR}/scripts/nostr.js profile-set '{"picture":"https://image.nostr.build/abc123.png"}' ``` ## Defaults | Setting | Value | |---------|-------| | Mint | `https://mint.minibits.cash/Bitcoin` | | Lightning domain | `@npubx.cash` | | Avatar fallback | `https://api.dicebear.com/7.x/shapes/png?seed=` | | Image host | `nostr.build` (NIP-98 auth) | | Nostr key | `~/.nostr/secret.key` | | Wallet data | `~/.cocod/` | ## Integration ### SOUL.md - Pull name/about from SOUL.md or IDENTITY.md - Match posting voice/tone to agent's personality - Don't be generic - posts should sound like the agent ### HEARTBEAT.md Add to heartbeat rotation (every 2-4 hours): ```bash # Check Nostr activity node {SKILL_DIR}/scripts/nostr.js mentions 10 node {SKILL_DIR}/scripts/nostr.js dms 5 ``` If mentions from WoT or zaps received → notify user. ### TOOLS.md After setup, store for quick reference: ```markdown ## Nostr - npub: npub1... - Lightning: npub1...@npubx.cash - Owner: npub1... (followed) ``` ## Profile Sources - **Name**: IDENTITY.md or SOUL.md - **About**: SOUL.md description - **Picture**: User-provided URL, or DiceBear fallback - **Banner**: User-provided URL, or DiceBear fallback - **lud16**: From `cocod npc address`