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Agent skill

Rr Solidity

by Microck in Microck/ordinary-claude-skills

Comprehensive Solidity smart contract development skill using Foundry framework.

Custom licenceAuto-check: notesBackend & APIs

Install Rr Solidity

skills CLI
$ npx skills add Microck/ordinary-claude-skills --skill rr-solidity -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Microck/ordinary-claude-skills rr-solidity --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Microck/ordinary-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills_all/rr-solidity .claude/skills/rr-solidity && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
rr-solidity
GitHub stars
403
Token cost
~3.1k tokens
SKILL.md length
545 words
Files
2
Skills in repo
91
Repo updated
First seen
Licence
Custom licence

At a glance

Comprehensive Solidity smart contract development skill using Foundry framework.

  • Works in 4 steps: Write Secure Contracts → Write Comprehensive Tests → Security Analysis → …
  • Auditing Solidity contracts with security-first practices
  • SKILL.md covers Overview, When to Use This Skill, Development Workflow and Advanced Testing Patterns, plus 8 more sections
  • Calls bash; needs ETHERSCAN_KEY and PRIVATE_KEY

What it does

Rr Solidity is an agent skill from Microck/ordinary-claude-skills. Comprehensive Solidity smart contract development skill using Foundry framework. Use for writing, testing, deploying, and auditing Solidity contracts with security-first practices. Also triggers when working with .sol files, Foundry project files (foundry.toml), test files (.t.sol), or smart contract deployment scripts. Example triggers: "Write smart contract", "Create Solidity test", "Deploy contract", "Audit smart contract", "Fix security vulnerability", "Write Foundry test", "Set up Foundry project"

Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `metadata.json`).

It sits in Backend & APIs, covering Smart contracts. It works with Solidity. The repository describes itself as: An unappealing collection of Claude Skills and resources.

When your agent uses it

  • Auditing Solidity contracts with security-first practices
  • Working with .sol files
  • Foundry project files (foundry.toml)
  • Test files (.t.sol)

Example prompts

  • “Write smart contract”
  • “Create Solidity test”
  • “Deploy contract”
  • “/rr-solidity”

Requirements

  • A credential in PRIVATE_KEY
  • A credential in ETHERSCAN_KEY

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Write Secure Contracts
  2. Write Comprehensive Tests
  3. Security Analysis
  4. Build and Deploy

What it can do on your machine

Read from SKILL.md and the folder at commit 1056d29. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • bash

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • ETHERSCAN_KEY
    • PRIVATE_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Rr Solidity loads about 3.1k tokens when it runs. Until then it costs about 130 tokens; SKILL.md has 545 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~130
When it runs · the whole SKILL.md, loaded when a task matches
~3.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:203
    source .env

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 545 words (~3,064 tokens).

“Comprehensive skill for professional Solidity smart contract development using the Foundry framework. Provides security-first development practices, testing patterns, static analysis integration (Slither, solhint), and deployment workflows for EVM-compatible blockchains.”

— opening of SKILL.md by Microck, Custom licence
name
rr-solidity

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills_all/rr-solidity of Microck/ordinary-claude-skills.

  • SKILL.md
  • metadata.json

Open the folder on GitHubat commit 1056d29

Compare with similar skills

Rr Solidity next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Rr Solidity compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Rr Solidity this skillMicrock/ordinary-claude-skills403—~3.1kAutomated safety check: NotesCustom licence
Fizz Convertpashov/skills1.2k2 repos~3.7kAutomated safety check: PassMIT
Feynman Auditor0xiehnnkta/nemesis-auditor2431 repos~11kAutomated safety check: PassMIT
Smart Contract Auditgreatpie/smart-contract-audit-skill101—~1.1kAutomated safety check: PassNone
RadarAuditware/radar154—~2.1kAutomated safety check: PassGPL-3.0
Solidity AuditorGabson0x/bountyforge443—~3.7kAutomated safety check: PassNone

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Works with

Categories

Questions about Rr Solidity

What does Rr Solidity do?

Comprehensive Solidity smart contract development skill using Foundry framework. Rr Solidity is an agent skill from Microck/ordinary-claude-skills. Comprehensive Solidity smart contract development skill using Foundry framework.

When should I use Rr Solidity?

Rr Solidity fits situations like: auditing Solidity contracts with security-first practices; working with .sol files; foundry project files (foundry.toml); test files (.t.sol).

How do I install Rr Solidity in Claude Code?

Run `npx skills add Microck/ordinary-claude-skills --skill rr-solidity -a claude-code`. Or copy the skill folder (skills_all/rr-solidity in Microck/ordinary-claude-skills) into .claude/skills/rr-solidity in your project. Claude Code loads it when a task matches its description.

How do I install Rr Solidity in Codex?

Run `npx skills add Microck/ordinary-claude-skills --skill rr-solidity -a codex`. Or copy the skill folder (skills_all/rr-solidity in Microck/ordinary-claude-skills) into .agents/skills/rr-solidity in your project. Codex loads it when a task matches its description.

Can I use Rr Solidity in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Microck/ordinary-claude-skills --skill rr-solidity -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rr-solidity, .gemini/skills/rr-solidity, .github/skills/rr-solidity and .opencode/skills/rr-solidity in your project.

What does Rr Solidity need to run?

Going by SKILL.md and its folder, Rr Solidity needs the command-line tools its instructions call (bash) and credentials named ETHERSCAN_KEY and PRIVATE_KEY. Our summary lists: A credential in PRIVATE_KEY; A credential in ETHERSCAN_KEY.

Does Rr Solidity access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Rr Solidity safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Rr Solidity use?

Rr Solidity has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Rr Solidity use?

About 3.1k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Rr Solidity?

Skills that share tags, products or a category with Rr Solidity: Fizz Convert (pashov/skills, 1.2k stars), Feynman Auditor (0xiehnnkta/nemesis-auditor, 243 stars), Smart Contract Audit (greatpie/smart-contract-audit-skill, 101 stars) and Radar (Auditware/radar, 154 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Rr Solidity?

Microck (a GitHub user) maintains it in Microck/ordinary-claude-skills, which has 403 GitHub stars. The repository holds 91 skills in this directory. The repository was last updated on September 6, 2026.

Source: Microck/ordinary-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.