add official elfa onboarding entry

Add Official Skills catalog entry for ELFA as an onboarding redirect.\nInstallation points to upstream elfa-ai/skills repository.

Co-authored-by: Starchild <noreply@iamstarchild.com>

elfa/SKILL.md

@@ -0,0 +1,98 @@
+---
+name: elfa
+version: 1.0.0
+description: |
+  ELFA AI — real-time crypto social intelligence and automated condition-engine skills for AI agents.
+
+  Track trending tokens, surface narratives, search mentions, run market analysis, and build automated trigger-based workflows.
+---
+
+# ELFA AI (Official Onboarding Entry)
+
+This is an **official onboarding entry** for discovering ELFA skills in the Starchild catalog.
+The full ELFA skill implementation lives in ELFA's upstream repository.
+
+## What ELFA Does
+
+ELFA is **real-time data infrastructure for financial AI** — the nervous system that gets the right information to the right decision-maker at the right moment.
+
+### Core Capabilities
+
+**Social Intelligence**
+- Trending tokens by mention count (Twitter & Telegram)
+- Top mentions for any ticker symbol ($SOL, $BTC, etc.)
+- Keyword mention search across social platforms
+- Smart follower & engagement stats for any account
+- AI-powered event summaries and token intros
+
+**Narrative & Market Analysis**
+- Trending narrative clusters (what the market is talking about)
+- Token-related news aggregation
+- AI chat for market analysis, account reviews, and token research
+- Real-time social sentiment tracking
+
+**Auto Condition Engine**
+- Builder Chat — AI-assisted query building
+- Create automated trigger queries (e.g., "Alert me when BTC crosses 100k")
+- Multi-condition triggers (e.g., "BTC + ETH breakout confirmation")
+- RSI-based dip-buy strategies with TP/SL
+- Portfolio check automation (e.g., 4h recurring checks on BTC, ETH, SOL)
+- SSE streaming for real-time notifications
+- Exchange integrations (GRVT, Hyperliquid) for automated execution
+
+**GRVT Trading Bot**
+- Self-hosted Elfa Auto → GRVT perpetual futures bot
+- FastAPI receiver with EIP-712 signing
+- SQLite registry for strategy management
+- Telegram alerts for trade events
+- OTOCO (One-Triggers-Other-Cancels-One) TP/SL execution
+
+## Install
+
+```bash
+npx skills add elfa-ai/skills
+```
+
+This installs both `elfa-ai` and `elfa-grvt-bot` skills via the Skills CLI.
+
+## Optional: List Available ELFA Skills First
+
+```bash
+npx skills add elfa-ai/skills --list
+```
+
+## Optional: Install Specific ELFA Skill(s)
+
+```bash
+npx skills add elfa-ai/skills --skill elfa-ai
+npx skills add elfa-ai/skills --skill elfa-grvt-bot
+```
+
+## Update
+
+```bash
+npx skills update
+```
+
+## API Key
+
+Get a free key (1,000 credits) at **[go.elfa.ai/claude-skills](https://go.elfa.ai/claude-skills)**
+
+```bash
+export ELFA_API_KEY=your_key_here
+```
+
+Free tier works with most endpoints. Trending narratives and AI chat require a paid plan.
+
+Alternatively, use **x402 keyless payments** to pay per request with USDC on Base (no signup required).
+
+## Notes
+
+- This official entry exists so users can discover ELFA from the Official Skills catalog.
+- Actual installation always pulls from `elfa-ai/skills`.
+- If upstream changes, follow upstream docs and versions as source of truth.
+- Full documentation: **[docs.elfa.ai](https://docs.elfa.ai)**
+
+---
+
+Powered by [Elfa AI](https://go.elfa.ai/claude-visit)