Smart Contract Report
aviggiano/security
Turn smart-contract audit findings and source evidence into a submission-ready Markdown report with an issue index, ordered finding IDs, actor-based scenarios, self-contained unit-test proofs of…
Smart contract testing with Foundry — unit tests, fuzz testing, fork testing, invariant testing.
Install Testing
$ npx skills add austintgriffith/ethskills --skill testing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install austintgriffith/ethskills testing --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/testing .claude/skills/testing && rm -rf skills-srcUse ~/.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/
Install the "testing" agent skill from https://github.com/austintgriffith/ethskills/tree/master/testing into .claude/skills/testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/austintgriffith/ethskills/tree/master/testingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add austintgriffith/ethskills --skill testing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install austintgriffith/ethskills testing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/testing .agents/skills/testing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "testing" agent skill from https://github.com/austintgriffith/ethskills/tree/master/testing into .agents/skills/testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add austintgriffith/ethskills --skill testing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install austintgriffith/ethskills testing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/testing .cursor/skills/testing && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "testing" agent skill from https://github.com/austintgriffith/ethskills/tree/master/testing into .cursor/skills/testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/austintgriffith/ethskills.git --path testing--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add austintgriffith/ethskills --skill testing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install austintgriffith/ethskills testing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/testing .gemini/skills/testing && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "testing" agent skill from https://github.com/austintgriffith/ethskills/tree/master/testing into .gemini/skills/testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install austintgriffith/ethskills testingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add austintgriffith/ethskills --skill testing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .github/skills && cp -r skills-src/testing .github/skills/testing && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "testing" agent skill from https://github.com/austintgriffith/ethskills/tree/master/testing into .github/skills/testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add austintgriffith/ethskills --skill testing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install austintgriffith/ethskills testing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/austintgriffith/ethskills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/testing .opencode/skills/testing && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "testing" agent skill from https://github.com/austintgriffith/ethskills/tree/master/testing into .opencode/skills/testing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "testing", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
testing- GitHub stars
- 294
- Token cost
- ~3.1k tokens
- SKILL.md length
- 569 words
- Files
- 1
- Skills in repo
- 22
- Repo updated
- First seen
- Licence
- None found
At a glance
Smart contract testing with Foundry — unit tests, fuzz testing, fork testing, invariant testing.
- Writing tests for a smart contract
- SKILL.md covers What You Probably Got Wrong, Unit Testing with Foundry, Fuzz Testing and Fork Testing, plus 3 more sections
- Reaches eth-mainnet.g.alchemy.com
- Tasks that involve Smart contracts
What it does
Testing is an agent skill from austintgriffith/ethskills. Smart contract testing with Foundry — unit tests, fuzz testing, fork testing, invariant testing. Use when writing tests for a smart contract.
Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Backend & APIs, covering Smart contracts, Unit testing and Fuzzing. The repository describes itself as: The missing knowledge between AI agents and production Ethereum.
When your agent uses it
- Writing tests for a smart contract
- Tasks that involve Smart contracts
- Tasks that involve Unit testing
Example prompts
- “/testing”
Requirements
- A credential in YOUR_KEY
What it can do on your machine
Read from SKILL.md and the folder at commit 06ea4ef. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are solidity and bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
eth-mainnet.g.alchemy.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Testing loads about 3.1k tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 569 words of instructions outside code blocks.
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 passed
The automated check found no risky patterns in SKILL.md.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 569 words (~3,081 tokens).
“You test getters and trivial functions. Testing that name() returns the name is worthless. Test edge cases, failure modes, and economic invariants — the things that lose money when they break.”
- name
- testing
Files
Just SKILL.md in testing of austintgriffith/ethskills.
Open the folder on GitHubat commit 06ea4ef
Compare with similar skills
Testing 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Testing this skillaustintgriffith/ethskills | 294 | — | ~3.1k | Automated safety check: Pass | None | |
| Smart Contract Reportaviggiano/security | 144 | — | ~2.4k | Automated safety check: Pass | MIT | |
| Fizz Convertpashov/skills | 1.2k | 2 repos | ~3.7k | Automated safety check: Pass | MIT | |
| Web3 Testingwshobson/agents | 40k | 12 repos | ~2k | Automated safety check: Pass | MIT | |
| Fuzz Generatoralt-research2/SolidityGuard | 104 | — | ~763 | Automated safety check: Notes | Custom licence | |
| Property Based Testingtrailofbits/skills | 7.4k | — | ~1.1k | Automated safety check: Pass | CC-BY-SA-4.0 |
Similar skills
Fizz Convert
pashov/skills
Convert English-language properties in PROPERTIES.md (produced by the Fizz skill) into Solidity assertions inside the existing fuzz harness, then flip their checkboxes.
Web3 Testing
wshobson/agents
Test smart contracts comprehensively using Hardhat and Foundry with unit tests, integration tests, and mainnet forking.
Fuzz Generator
alt-research2/SolidityGuard
Generates Foundry invariant tests and Echidna property-based fuzz tests for Solidity contracts.
- Official
Property Based Testing
trailofbits/skills
Writes, reviews, and debugs property-based tests — Hypothesis, fast-check, proptest, jqwik, rapid, and Echidna or Medusa for Solidity invariants.
Foundry Fuzz Mirrors
aviggiano/security
Create Foundry fuzz tests from deterministic unit tests. An agent skill from aviggiano/security.
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Related
Categories
Questions about Testing
What does Testing do?
Smart contract testing with Foundry — unit tests, fuzz testing, fork testing, invariant testing. Testing is an agent skill from austintgriffith/ethskills. Smart contract testing with Foundry — unit tests, fuzz testing, fork testing, invariant testing.
When should I use Testing?
Testing fits situations like: writing tests for a smart contract; tasks that involve Smart contracts; tasks that involve Unit testing.
How do I install Testing in Claude Code?
Run `npx skills add austintgriffith/ethskills --skill testing -a claude-code`. Or copy the skill folder (testing in austintgriffith/ethskills) into .claude/skills/testing in your project. Claude Code loads it when a task matches its description.
How do I install Testing in Codex?
Run `npx skills add austintgriffith/ethskills --skill testing -a codex`. Or copy the skill folder (testing in austintgriffith/ethskills) into .agents/skills/testing in your project. Codex loads it when a task matches its description.
Can I use Testing 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 austintgriffith/ethskills --skill testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/testing, .gemini/skills/testing, .github/skills/testing and .opencode/skills/testing in your project.
What does Testing need to run?
SKILL.md names no scripts, command-line tools or credentials: Testing is instructions for the agent only. Our summary lists: A credential in YOUR_KEY.
Does Testing access the network?
SKILL.md names 1 domain. In commands or code: eth-mainnet.g.alchemy.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Testing safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Testing use?
No licence was found for Testing or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Testing 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 Testing?
Skills that share tags, products or a category with Testing: Smart Contract Report (aviggiano/security, 144 stars), Fizz Convert (pashov/skills, 1.2k stars), Web3 Testing (wshobson/agents, 40k stars) and Fuzz Generator (alt-research2/SolidityGuard, 104 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Testing?
austintgriffith (a GitHub user) maintains it in austintgriffith/ethskills, which has 294 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on August 20, 2026.
Source: austintgriffith/ethskills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.