solidity-playground-guide SKILL.md skillA
solidity-playground-guide from nirholas/three.ws is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nirholas/three.ws/solidity-playground-guide@git:20260501.87cefc9Pins git:20260501.87cefc9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nirholas/three.ws
- Path
data/skills/development/solidity-playground-guide/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260501.87cefc9, committed May 1, 2026
- Size
- 4,330 bytes
- Repository stars
- 269
- License
- Apache-2.0
Guide to Lyra Web3 Playground — a browser-based Solidity IDE and smart contract playground. Write, compile, deploy, and interact with contracts directly in the browser. Supports Hardhat/Foundry compilation, multiple chains, and live contract testing.
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
# Lyra Web3 Playground — Solidity IDE Guide A browser-based Solidity IDE for writing, compiling, deploying, and interacting with smart contracts. No local setup required — everything runs in the browser. ## Features | Feature | Description | |---------|-------------| | **Solidity Editor** | Monaco editor with syntax highlighting | | **Compiler** | In-browser Solc compilation | | **Deploy** | Deploy to any EVM chain | | **Interact** | Call contract functions from UI | | **Templates** | Pre-built contract templates | | **ABI Viewer** | Visual ABI explorer | | **Gas Estimator** | Pre-deployment gas estimates | | **Verification** | Auto-verify on block explorers | ## Quick Start 1. Open the playground in your browser 2. Write or paste Solidity code 3. Click "Compile" 4. Connect wallet 5. Click "Deploy" 6. Interact with your contract ## Supported Chains | Chain | Testnet | Mainnet | |-------|---------|---------| | Ethereum | Sepolia | ✅ | | Arbitrum | Sepolia | ✅ | | Base | Sepolia | ✅ | | Polygon | Amoy | ✅ | | BSC | Testnet | ✅ | | Optimism | Sepolia | ✅ | ## Contract Templates ### ERC-20 Token ```solidity // SPDX-License-Identifier: MIT pragma solidity ^0.8.20; …
Read the whole file at its exact version.
How to install
mdr add nirholas/three.ws/solidity-playground-guide@sha256:c5c930e5a15f9e2cThe line at the top of this page pins the label git:20260501.87cefc9, 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.
[](https://markdownregistry.com/a/art_3uvigflikokh6c7b)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 1, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4330 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
nirholas/three.ws · 269 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3uvigflikokh6c7b GET https://markdownregistry.com/api/v1/resolve?ref=nirholas/three.ws/solidity-playground-guide GET https://markdownregistry.com/api/v1/blob/c5c930e5a15f9e2c33e427afc46d29d817e9e4360ea2013ee436a33c64444767
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.