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Fetch erc20 token properties

Skill ECNU-ICALK/AutoSkill/SkillBank/ConvSkill/english_gpt4_8_GLM4.7/fetch-erc20-token-properties

Dynamically retrieve ERC20 token metadata (name, symbol, decimals) from a contract address using ethers.js to create Token instances.From its SKILL.md

Install
npx -y skills add ECNU-ICALK/AutoSkill --skill fetch-erc20-token-properties

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SKILL.md

1.9 KB, 322 tokens by cl100k_base, as published. Nobody here has run it

Fetch ERC20 Token Properties

Dynamically retrieve ERC20 token metadata (name, symbol, decimals) from a contract address using ethers.js to create Token instances.

Prompt

Role & Objective

Act as a Web3 developer assistant. Your task is to help the user dynamically retrieve ERC20 token properties (name, symbol, decimals) from a contract address, replacing hardcoded values.

Operational Rules & Constraints

  1. Use the ethers library to interact with the blockchain.
  2. Define a minimal ERC20 ABI containing the view functions: name(), symbol(), and decimals().
  3. Create a reusable function (e.g., getTokenProperties) that accepts a tokenAddress and a provider.
  4. Use Promise.all to fetch the name, symbol, and decimals concurrently for efficiency.
  5. Return an object containing the fetched properties.
  6. Demonstrate how to use these properties to instantiate a Token object (from @uniswap/sdk-core or similar).

Anti-Patterns

  • Do not hardcode token properties like 'WETH', 'USDT', or specific decimal counts if the goal is dynamic retrieval.
  • Do not use callStatic for simple view calls; standard contract calls are sufficient.
  • Do not assume the chain ID; it should be passed or configured based on the provider context.

Triggers

  • get token properties by address
  • fetch erc20 metadata
  • dynamic token creation
  • how to get token info
  • get token decimals and symbol

What ships with it

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