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+# EVENT Command Design
+
+The EVENT command is the counterpart to REQ - while REQ queries events from relays, EVENT creates and publishes events to relays.
+
+## Design Philosophy
+
+**Symmetry with REQ**: Flags that make sense for both querying and creating events should use the same syntax. This makes the CLI intuitive - if you know REQ, you know half of EVENT.
+
+| Concept | REQ (query) | EVENT (create) |
+|---------|-------------|----------------|
+| Kind | `-k 1` filters for kind 1 | `-k 1` creates kind 1 |
+| Event ref | `-e nevent1...` filters #e tags | `-e nevent1...` adds e-tag |
+| Pubkey | `-p npub1...` filters #p tags | `-p npub1...` adds p-tag |
+| Hashtag | `-t nostr` filters #t tags | `-t nostr` adds t-tag |
+| D-tag | `-d article` filters #d tags | `-d article` sets d-tag |
+| Generic tag | `-T a value` filters #a tags | `-T a value` adds a-tag |
+| Relays | Query these relays | Publish to these relays |
+
+## Flags
+
+### Content & Kind
+
+| Flag | Description | Default |
+|------|-------------|---------|
+| `-c, --content <text>` | Event content/message | `""` (empty) |
+| `-k, --kind <number>` | Event kind | `1` (text note) |
+| `--ts, --created-at <time>` | Timestamp (unix, relative, or "now") | Current time |
+
+### Tags (Reused from REQ)
+
+| Flag | Description | Notes |
+|------|-------------|-------|
+| `-e <ref>` | Add e-tag (event reference) | Supports note1, nevent1, hex. Relay hints extracted. |
+| `-p <pubkey>` | Add p-tag (mention) | Supports npub, nprofile, hex, NIP-05, $me |
+| `-t <hashtag>` | Add t-tag | Multiple allowed: `-t nostr -t bitcoin` |
+| `-d <identifier>` | Set d-tag | For replaceable events (kinds 30000-39999) |
+| `-T, --tag <letter> <value> [relay]` | Add any tag | Generic: `-T a 30023:pk:id wss://relay` |
+
+### Publishing
+
+| Flag | Description |
+|------|-------------|
+| `[relay...]` | Relay URLs to publish to |
+| `--dry-run` | Show event JSON without signing/publishing |
+
+### Advanced (Future)
+
+| Flag | Description |
+|------|-------------|
+| `--pow <difficulty>` | Add NIP-13 proof-of-work |
+| `--envelope` | Output in relay message format `["EVENT", {...}]` |
+
+## Behavior
+
+### Without Relays (Dry Run / Preview)
+
+```bash
+event -c "hello world"
+```
+
+Opens EventBuilder viewer showing:
+- Event preview (rendered)
+- Raw JSON
+- "Sign & Publish" button to select relays
+
+### With Relays (Direct Publish)
+
+```bash
+event -c "hello world" relay.damus.io nos.lol
+```
+
+Opens EventBuilder viewer:
+- Shows event preview
+- Auto-signs and publishes to specified relays
+- Displays per-relay publish status (pending/success/error)
+
+## Tag Handling
+
+### e-tags (Event References)
+
+The `-e` flag adds event reference tags with proper structure:
+
+```bash
+event -c "reply" -e nevent1qqs...
+```
+
+Produces:
+```json
+["e", "<event-id>", "<relay-hint>", "reply"]
+```
+
+When referencing via nevent1, relay hints are automatically extracted.
+
+### p-tags (Mentions)
+
+The `-p` flag supports multiple identifier formats:
+
+```bash
+event -c "hey @alice" -p fiatjaf.com -p npub1abc...
+```
+
+NIP-05 identifiers are resolved async. Relay hints from nprofile are extracted.
+
+### a-tags (Addressable References)
+
+Use the generic `-T` flag:
+
+```bash
+event -c "comment on article" -T a 30023:pubkey:article-id wss://relay
+```
+
+Produces:
+```json
+["a", "30023:pubkey:article-id", "wss://relay"]
+```
+
+## Examples
+
+### Basic Text Note
+```bash
+event -c "hello nostr!"
+event -c "gm fam" relay.damus.io
+```
+
+### Note with Hashtags
+```bash
+event -c "building on #nostr" -t nostr -t bitcoin
+```
+
+### Reply to Event
+```bash
+event -c "great post!" -e nevent1qqs8lft0t45k92c78n2zfe6ccvqzhpn977cd3h8wnl579zxhw5dvr9qqyz...
+```
+
+### Mention Users
+```bash
+event -c "thanks for the help" -p fiatjaf.com -p npub1dergigi...
+```
+
+### Replaceable Event (Article)
+```bash
+event -k 30023 -d my-article -c "# My Article\n\nContent here..."
+```
+
+### Profile Metadata (Kind 0)
+```bash
+event -k 0 -c '{"name":"Alice","about":"Nostr enthusiast"}'
+```
+
+### Reaction
+```bash
+event -k 7 -c "+" -e nevent1...
+```
+
+### Custom Tags
+```bash
+event -c "live comment" -T a 30311:pubkey:stream-id wss://relay
+```
+
+### With Explicit Timestamp
+```bash
+event -c "backdated" --ts 1704067200
+event -c "now" --ts now
+```
+
+## Parser Implementation
+
+The parser should be implemented in `src/lib/event-parser.ts` and reuse utilities from `req-parser.ts`:
+
+- `parseNpubOrHex()` - for -p flag
+- `parseEventIdentifier()` - for -e flag
+- `parseTimestamp()` - for --ts flag
+- `normalizeRelayURL()` - for relay args
+- `isRelayDomain()` - for relay detection
+- `parseCommaSeparated()` - for multi-value flags
+
+### Parsed Result Interface
+
+```typescript
+interface ParsedEventCommand {
+  kind: number;
+  content: string;
+  createdAt?: number;
+  tags: string[][];
+  relays?: string[];
+  dryRun?: boolean;
+
+  // For async resolution
+  nip05PTags?: string[];
+  domainPTags?: string[];
+  needsAccount?: boolean;
+}
+```
+
+## UI Component: EventBuilder
+
+The viewer component should:
+
+1. **Preview Mode**: Show rendered event preview + raw JSON
+2. **Edit Mode**: Allow content editing before signing
+3. **Publish Controls**:
+   - Relay selector (with write relays pre-selected)
+   - Sign & Publish button
+   - Per-relay status indicators
+4. **Result Display**:
+   - Show signed event ID (nevent1)
+   - Copy buttons for ID/JSON
+   - "Open" button to view published event
+
+## Comparison with nak
+
+| nak | Grimoire EVENT |
+|-----|----------------|
+| `--content, -c` | `-c, --content` ✓ |
+| `--kind, -k` | `-k, --kind` ✓ |
+| `--created-at, --time, --ts` | `--ts, --created-at` ✓ |
+| `-e` (shortcut for tag) | `-e` ✓ |
+| `-p` (shortcut for tag) | `-p` ✓ (with NIP-05 resolution) |
+| `-d` (shortcut for tag) | `-d` ✓ |
+| `-t` (generic tag) | `-T, --tag` (Grimoire uses -t for hashtags) |
+| `--sec` | N/A (uses account signer) |
+| `--pow` | Future |
+| `--envelope` | Future |
+| `--nevent` | Auto-displayed in result |
+| Relay args | Same ✓ |
+
+## Man Page Entry
+
+```typescript
+event: {
+  name: "event",
+  section: "1",
+  synopsis: "event [options] [relay...]",
+  description:
+    "Create and publish Nostr events. Build events with specified kind, content, and tags. Without relays, displays event JSON for preview. With relays, signs and publishes the event.",
+  options: [
+    { flag: "-c, --content <text>", description: "Event content/message" },
+    { flag: "-k, --kind <number>", description: "Event kind (default: 1)" },
+    { flag: "-e <ref>", description: "Add e-tag (note, nevent, hex)" },
+    { flag: "-p <pubkey>", description: "Add p-tag (npub, nprofile, NIP-05, $me)" },
+    { flag: "-t <hashtag>", description: "Add t-tag (hashtag)" },
+    { flag: "-d <identifier>", description: "Set d-tag (replaceable events)" },
+    { flag: "-T, --tag <letter> <value>", description: "Add any tag" },
+    { flag: "--ts, --created-at <time>", description: "Set timestamp" },
+    { flag: "--dry-run", description: "Preview without publishing" },
+    { flag: "[relay...]", description: "Relays to publish to" },
+  ],
+  examples: [
+    "event -c \"hello nostr!\"                    Create text note (preview)",
+    "event -c \"gm\" relay.damus.io               Publish to relay",
+    "event -c \"#nostr\" -t nostr                 Note with hashtag",
+    "event -c \"reply\" -e nevent1...             Reply to event",
+    "event -c \"hey\" -p fiatjaf.com              Mention user",
+    "event -k 7 -c \"+\" -e nevent1...            React to event",
+    "event -k 30023 -d article -c \"# Title\"     Create article",
+  ],
+  seeAlso: ["req", "post", "open"],
+  appId: "event",
+  category: "Nostr",
+}
+```
+
+## Future Enhancements
+
+1. **Proof-of-Work**: `--pow <difficulty>` for NIP-13
+2. **Stdin Support**: Pipe content from file/stdin
+3. **Templates**: Pre-defined event templates (reaction, repost, etc.)
+4. **Event Modification**: Accept existing event JSON and re-sign
+5. **Batch Publishing**: Multiple events in sequence