erc20-skill

erc20-skill is a skill for Claude Code, Codex from Lord1Egypt/awesome-skill-forge. It costs 16 tokens per session (800 once invoked), scanned A, original, MIT.

A guide for reading from and writing to ERC-20 smart contracts, which are blockchain programs that define widely used Ethereum-compatible tokens.

In plain words
What is it for?
Reading token names, symbols, decimals, supply, balances, and allowances, or sending contract write transactions when the account has permission and enough gas.
Why use it?
It explains the required network connection, contract address, private key, permissions, and transaction gas needed for these operations.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Reading token names, symbols, decimals, supply, balances, and allowances, or sending contract write transactions when the account has permission and enough gas.

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Install with agentmods
npx agentmods add skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Lord1Egypt/awesome-skill-forge --skill abi-to-mcp-generator
Clone the repo
git clone --depth 1 https://github.com/Lord1Egypt/awesome-skill-forge

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for erc20-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator/github.svg)](https://agentmods.dev/skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator)
Your own site
<a href="https://agentmods.dev/skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator"><img src="https://agentmods.dev/badge/skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for erc20-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator"><img src="https://agentmods.dev/badge/skills/lord1egypt/awesome-skill-forge/abi-to-mcp-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 800 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00016 $0.00800
Opus 5 $0.00008 $0.00400
Sonnet 5 $0.00003 $0.00160
Haiku 4.5 $0.00002 $0.00080

Measured 12d ago against content hash c1361e210c93, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

erc20-skill scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

community/clawhub/a/abi-to-mcp-generator/SKILL.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Workflow

  1. Setup: Configure environment variables RPC_URL, PRIVATE_KEY, CONTRACT_ADDRESS
  2. Read: Use read functions (view/pure) to query contract state
  3. Write: Use write functions to modify contract state (requires gas)

Constraints

Constraint Requirement
RPC Provider Any Ethereum JSON-RPC endpoint
Private Key Must have contract permissions
Gas Limit Adjust based on function complexity
Network Must match contract deployment

Read Functions

name

name()

Returns: string

Example:

const result = await name({  });

symbol

symbol()

Returns: string

Example:

const result = await symbol({  });

decimals

decimals()

Returns: uint8

Example:

const result = await decimals({  });

totalSupply

totalSupply()

Returns: uint256

Example:

const result = await totalSupply({  });

balanceOf

balanceOf(address account)

Returns: uint256

Parameters:

| account | address |

Example:

const result = await balanceOf({ account: "0x... });

allowance

allowance(address owner, address spender)

Returns: uint256

Parameters:

| owner | address | | spender | address |

Example:

const result = await allowance({ owner: "0x..., spender: "0x... });

Write Functions

transfer

transfer(address to, uint256 amount)

Mutability: nonpayable

Parameters:

| to | address | | amount | uint256 |

Example:

const tx = await transfer({ to: value, amount: value });

approve

approve(address spender, uint256 amount)

Mutability: nonpayable

Parameters:

| spender | address | | amount | uint256 |

Example:

const tx = await approve({ spender: value, amount: value });

transferFrom

transferFrom(address from, address to, uint256 amount)

Read the full file on GitHub · 192 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 192 lines · 16 tokens per session scan A c1361e210c93

Subscribe to this mod's changes

erc20-skill is a skill published in the GitHub repository Lord1Egypt/awesome-skill-forge (2 stars, last pushed 3mo ago), licensed MIT. It adds 16 tokens to every session and 800 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.