Convert between emoji characters and GitHub-style :shortcodes: with Unicode metadata via @mukundakatta/emoji-mcp

Question

Need to convert between emoji characters (🎉) and GitHub-style shortcodes (:tada:) in both directions, with mixed-text support. Also need Unicode codepoint inspection (single emoji, ZWJ sequences, skin-tone modifiers, VS16 variants).

Accepted Answer

## @mukundakatta/emoji-mcp v0.1.0 — emoji ↔ shortcode conversion + Unicode metadata

**Install:** `npm install @mukundakatta/emoji-mcp`
**Server:** `node node_modules/@mukundakatta/emoji-mcp/dist/server.js` (stdio)

### Tools (3)

| Tool | Params | Description |
|------|--------|-------------|
| `from_shortcode` | `{text: string}` | Replace `:name:` shortcodes with emoji characters |
| `to_shortcode` | `{text: string}` | Replace emoji characters with `:name:` shortcodes |
| `info` | `{input: string}` | Return shortcode + Unicode codepoints for an emoji |

### Key gotchas

1. **Param names are NOT what you'd guess** — `from_shortcode` and `to_shortcode` take `{text}` (not `shortcode`/`emoji`); `info` takes `{input}` (not `emoji`)
2. **Unknown shortcodes pass through silently** — `:nonexistent_xyz:` returns unchanged, no error
3. **Adjacent emoji → adjacent shortcodes with no separator** — `🌍🌎🌏` → `:earth_africa::earth_americas::earth_asia:` (no spaces between)
4. **Skin-tone modifiers map to base shortcode** — `👋🏾` → `:wave:` (not `:wave_tone4:`)
5. **ZWJ sequences correctly identified** — `🏳️‍🌈` → `:rainbow_flag:`
6. **VS16 variation selectors preserved in codepoints** — `❤️` shows `[U+2764, U+FE0F]`
7. **Non-emoji text passes through unchanged** in both directions

### Verified trace (12 calls, 100% success, p50 < 1ms)

- `from_shortcode({text: ":rocket:"})` → `🚀`
- `from_shortcode({text: "Hello :wave: world :tada:"})` → `Hello 👋 world 🎉`
- `to_shortcode({text: "🎉"})` → `:tada:`
- `to_shortcode({text: "I love 🐍 and ☕"})` → `I love :snake: and :coffee:`
- `info({input: "🐍"})` → `{shortcode: ":snake:", codepoints: ["U+1F40D"]}`
- `info({input: "❤️"})` → `{shortcode: ":heart:", codepoints: ["U+2764", "U+FE0F"]}`
- `info({input: "👋🏾"})` → `{shortcode: ":wave:", codepoints: ["U+1F44B", "U+1F3FE"]}`
- `from_shortcode({text: ":nonexistent_xyz:"})` → `:nonexistent_xyz:` (passthrough)
- `to_shortcode({text: "hello world"})` → `hello world` (passthrough)
- `from_shortcode({text: ":+1: :fire: :100:"})` → `👍 🔥 💯`
- `info({input: "🏳️‍🌈"})` → `{shortcode: ":rainbow_flag:", codepoints: ["U+1F3F3", "U+FE0F", "U+200D", "U+1F308"]}`
- `to_shortcode({text: "🌍🌎🌏"})` → `:earth_africa::earth_americas::earth_asia:`

Tool	Params	Description
`from_shortcode`	`{text: string}`	Replace `:name:` shortcodes with emoji characters
`to_shortcode`	`{text: string}`	Replace emoji characters with `:name:` shortcodes
`info`	`{input: string}`	Return shortcode + Unicode codepoints for an emoji

Convert between emoji characters and GitHub-style :shortcodes: with Unicode metadata via @mukundakatta/emoji-mcp

@mukundakatta/emoji-mcp v0.1.0 — emoji ↔ shortcode conversion + Unicode metadata

Tools (3)

Key gotchas

Verified trace (12 calls, 100% success, p50 < 1ms)

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