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nostr

koteitan's Nostr hub — relay discovery (bootstrap → kind:10002 → kind:3 → fallback), NIP-19 bech32 encode/decode (naddr/nevent/npub, DIY, no nostr-tools), CLI…

Skill by koteitan

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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/koteitan-nostr

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About

koteitan's Nostr hub — relay discovery (bootstrap → kind:10002 → kind:3 → fallback), NIP-19 bech32 encode/decode (naddr/nevent/npub, DIY, no nostr-tools), CLI relay debugging with websocat/nak, the standard web-app stack (TypeScript + Vite + rx-nostr + React), and a pointer to the ~/code/nostr-research survey of how real clients/relays behave (bootstrap relays, limit/rate-limit, NIP-11 limits). Use for any nostr task — building/fixing a nostr web client, making an naddr URL, checking which relay holds an event, or asking what other implementations do.

Use cases: frontend, research, productivity

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/nostr

What's inside

Skill name
nostr
Description
koteitan's Nostr hub — relay discovery (bootstrap → kind:10002 → kind:3 → fallback), NIP-19 bech32 encode/decode (naddr/nevent/npub, DIY, no nostr-tools), CLI relay debugging with websocat/nak, the standard web-app stack (TypeScript + Vite + rx-nostr + React), and a pointer to the ~/code/nostr-research survey of how real clients/relays behave (bootstrap relays, limit/rate-limit, NIP-11 limits). Use for any nostr task — building/fixing a nostr web client, making an naddr URL, checking which relay holds an event, or asking what other implementations do.
License
MIT
Instructions
59 lines in SKILL.md · view on GitHub

Files (6)

  • SKILL.md
  • nip19.md · references/
  • project-stack.md · references/
  • relay-discovery.md · references/
  • relay-query.md · references/
  • research-repo.md · references/

SKILL.md (first lines)

# nostr

Everything for koteitan's nostr work. Read the reference file for the task at
hand; each is self-contained.

| Task | Reference |
|------|-----------|
| New/existing nostr web app: stack, NIP-07, follow list, note fetching | `references/project-stack.md` |
| Which relays to read/write for a pubkey; incremental rendering rule | `references/relay-discovery.md` |
| Build/parse `naddr` / `nevent` / `npub` / `note` / `nprofile` | `references/nip19.md` |
| "Does relay X have event/tag Y for pubkey Z?" (CLI debugging) | `references/relay-query.md` |
| **How do other clients/relays actually do it?** — bootstrap-relay choices per client, relay-software `limit`/rate-limit behavior, per-instance NIP-11 limits | `references/research-repo.md` → `~/code/nostr-research/` |

## Standing rules (apply to all nostr work)

1. **Do NOT use `nostr-tools`** (or other bech32 libs) for NIP-19 in project
   code — DIY the bech32, and keep decode symmetric with encode.
2. **Match the surrounding file's existing method.** If a bech32 helper or a
   relay-fetch pattern already exists in the file, reuse/extend it.
3. **Render as data arrives — never block on EOSE.**
4. Only use kind:10002 for the relay list; kind:3 is fallback only.
5. **Don't guess how other clients/relays behave, or what a relay's limits are —
   look it up in `~/code/nostr-research/`** (see `references/research-repo.md`).

## Relay sets (shared by all references)

Bootstrap / indexer relays:

```
wss://directory.yabu.me
wss://purplepag.es
wss://relay.nostr.band
wss://indexer.coracle.social
```

Fallback relays — if browser locale is `ja`:

```
wss://yabu.me                    wss://nostr.compile-error.net
wss://r.kojira.io                wss://relay-jp.nostr.wirednet.jp
wss://nrelay-jp.c-stellar.net    wss://nostream.ocha.one
wss://snowflare.cc
```

otherwise:

```
wss://relay.damus.io             wss://nostr-pub.wellorder.net
wss://offchain.pub               wss://relay.snort.social
```

Common kinds: `0` metadata, `1` note, `3` contacts, `10002` relay list,
`30030` emoji sets.

## Related (not part of this skill)

- `nostter-upstream-pr` — the PR workflow for contributing to SnowCait/nostter.

From koteitan/my-skills, MIT.

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Last commit (this folder)
Aug 8, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

nostr skill. Agent Mart. https://agentmart.dev/skills/koteitan-nostr (last updated 2026-10-24)