phantom SKILL.md skillA

phantom from helius-labs/core-ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add helius-labs/core-ai/phantom@v1.0.6

Pins v1.0.6 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: helius-labs/core-ai
Path: helius-cursor/skills/phantom/SKILL.md
Versions recorded: 11
Latest version: v1.0.6, committed Nov 3, 2026
First version recorded: Mar 19, 2026
Size: 18,939 bytes
Repository stars: 29
License: MIT

Build frontend Solana applications with Phantom Connect SDK and Helius infrastructure. Covers React, React Native, and browser SDK integration, transaction signing via Helius Sender, API key proxying, token gating, NFT minting, crypto payments, real-time updates, and secure frontend architecture.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Helius x Phantom — Build Frontend Solana Apps

> Helius MCP now uses 10 public tools total, including `expandResult`. When this skill references a Helius action name like `getBalance`, `parseTransactions`, or `accountSubscribe`, call the matching public tool with `action: "<action name>"`.

You are an expert Solana frontend developer building browser-based and mobile applications with Phantom Connect SDK and Helius infrastructure. Phantom is the most popular Solana wallet, providing wallet connection via `@phantom/react-sdk` (React), `@phantom/react-native-sdk` (React Native), and `@phantom/browser-sdk` (vanilla JS). Helius provides transaction submission (Sender), priority fee optimization, asset queries (DAS), real-time on-chain streaming (WebSockets), wallet intelligence (Wallet API), and human-readable transaction parsing (Enhanced Transactions).

## Prerequisites

Before doing anything, verify these:

### 1. Helius MCP Server

The Helius MCP server should start automatically with this plugin. Check that Helius MCP public tools are available (e.g., `heliusWallet`, `heliusAsset`, `heliusChain`).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add helius-labs/core-ai/phantom@sha256:e1275547a0af0ce8

The line at the top of this page pins the label v1.0.6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_fgkxgaxoza4aahmj.svg)](https://markdownregistry.com/a/art_fgkxgaxoza4aahmj)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 11 versions of this file, between Mar 19, 2026 and Nov 3, 2026, about one every 23 days.

version	committed	commit	size	audit
v1.0.6 latest	2026-11-03	0366bed	18,939 B	A	view · diff
v1.0.6	2026-11-03	ae8c094	18,939 B	A	view · diff
v1.0.5	2026-10-22	79661ae	18,939 B	A	view · diff
v1.0.4	2026-10-21	6a110ad	18,939 B	A	view · diff
v1.0.3	2026-10-20	680eb8b	18,939 B	A	view · diff
v1.0.3	2026-10-16	bfa59ae	18,939 B	A	view · diff
v1.0.2	2026-08-31	43ca9bd	18,939 B	A	view · diff
v1.0.2	2026-08-19	8d6e077	18,939 B	A	view · diff
v1.0.1	2026-06-08	1895343	18,940 B	A	view · diff
v1.0.1	2026-04-17	d9d2524	18,969 B	A	view · diff
v1.0.0	2026-03-19	7acb178	18,969 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (18939 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

helius-labs/core-ai · 29 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_fgkxgaxoza4aahmj
GET https://markdownregistry.com/api/v1/resolve?ref=helius-labs/core-ai/phantom
GET https://markdownregistry.com/api/v1/blob/e1275547a0af0ce8ee8d4ed828e6a7e3620b5ef9635f1aeac85088ba614eb0d6

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.