Agent Skills: nostr-expert

Nostr protocol implementation patterns in Quartz (AmethystMultiplatform's KMP Nostr library). Use when working with: (1) Nostr events (creating, parsing, signing), (2) Event kinds and tags, (3) NIP implementations (80+ NIP packages in quartz/), (4) Event builders and TagArrayBuilder DSL, (5) Nostr cryptography (secp256k1, NIP-44 encryption), (6) Relay communication patterns, (7) Bech32 encoding (npub, nsec, note, nevent), (8) Resolving user input (hex, npub, nprofile, or NIP-05 `name@domain` internet identifiers) to a pubkey. Complements nostr-protocol agent (NIP specs) - this skill provides Quartz codebase patterns and implementation details.