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.
Audit smart-contract source and build evidence for authorization, accounting, state-machine, external-call, upgrade, signature, oracle, token-integration, and denial-of-service defects.
Install Audit Smart Contract Security
$ npx skills add cyberful/cyberful --skill audit-smart-contract-security -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cyberful/cyberful audit-smart-contract-security --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/cyberful/cyberful.git skills-src && mkdir -p .claude/skills && cp -r skills-src/cyberful/builtin/skills/audit-smart-contract-security .claude/skills/audit-smart-contract-security && 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 "audit-smart-contract-security" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-security into .claude/skills/audit-smart-contract-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-smart-contract-security", 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/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-securityType 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 cyberful/cyberful --skill audit-smart-contract-security -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cyberful/cyberful audit-smart-contract-security --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .agents/skills && cp -r skills-src/cyberful/builtin/skills/audit-smart-contract-security .agents/skills/audit-smart-contract-security && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "audit-smart-contract-security" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-security into .agents/skills/audit-smart-contract-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-smart-contract-security", 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 cyberful/cyberful --skill audit-smart-contract-security -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cyberful/cyberful audit-smart-contract-security --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/cyberful/builtin/skills/audit-smart-contract-security .cursor/skills/audit-smart-contract-security && 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 "audit-smart-contract-security" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-security into .cursor/skills/audit-smart-contract-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-smart-contract-security", 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/cyberful/cyberful.git --path cyberful/builtin/skills/audit-smart-contract-security--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 cyberful/cyberful --skill audit-smart-contract-security -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cyberful/cyberful audit-smart-contract-security --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/cyberful/builtin/skills/audit-smart-contract-security .gemini/skills/audit-smart-contract-security && 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 "audit-smart-contract-security" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-security into .gemini/skills/audit-smart-contract-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-smart-contract-security", 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 cyberful/cyberful audit-smart-contract-securityInstalls 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 cyberful/cyberful --skill audit-smart-contract-security -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .github/skills && cp -r skills-src/cyberful/builtin/skills/audit-smart-contract-security .github/skills/audit-smart-contract-security && 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 "audit-smart-contract-security" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-security into .github/skills/audit-smart-contract-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-smart-contract-security", 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 cyberful/cyberful --skill audit-smart-contract-security -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cyberful/cyberful audit-smart-contract-security --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cyberful/cyberful.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/cyberful/builtin/skills/audit-smart-contract-security .opencode/skills/audit-smart-contract-security && 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 "audit-smart-contract-security" agent skill from https://github.com/cyberful/cyberful/tree/main/cyberful/builtin/skills/audit-smart-contract-security into .opencode/skills/audit-smart-contract-security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "audit-smart-contract-security", 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
audit-smart-contract-security- GitHub stars
- 135
- Token cost
- ~650 tokens
- SKILL.md length
- 192 words
- Files
- 4 (incl. references, assets)
- Skills in repo
- 85
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Audit smart-contract source and build evidence for authorization, accounting, state-machine, external-call, upgrade, signature, oracle, token-integration, and denial-of-service defects.
- Code-level Solidity
- SKILL.md covers Reconstruct reachable state…, Challenge implementation… and Deliver
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- EVM review with explicit deployed and architectural assumptions
What it does
Audit Smart Contract Security is an agent skill from cyberful/cyberful. Audit smart-contract source and build evidence for authorization, accounting, state-machine, external-call, upgrade, signature, oracle, token-integration, and denial-of-service defects. Use for code-level Solidity or EVM review with explicit deployed and architectural assumptions.
Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files and assets (for example `agents/openai.yaml`, `assets/contract-invariant-ledger.template.json` and `references/contract-audit-method.md`).
It sits in Backend & APIs, covering Smart contracts, Smart contract auditing and Accounting and bookkeeping. It works with Solidity. The repository describes itself as: Cyberful is an open-source AI Red Team for discovering, exploiting, verifying, and remediating vulnerabilities. The licence is AGPL-3.0.
When your agent uses it
- Code-level Solidity
- EVM review with explicit deployed and architectural assumptions
Example prompts
- “/audit-smart-contract-security”
What it can do on your machine
Read from SKILL.md and the folder at commit ec598a6. 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.
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 no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Audit Smart Contract Security loads about 650 tokens when it runs, and up to ~948 if it reads all its reference files. Until then it costs about 78 tokens; SKILL.md has 192 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
The full file from cyberful/cyberful at commit ec598a6, republished under its AGPL-3.0 licence (© cyberful). 192 words, ~650 tokens.
Download SKILL.mdSave it as
.claude/skills/audit-smart-contract-security/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- audit-smart-contract-security
- description
- Audit smart-contract source and build evidence for authorization, accounting, state-machine, external-call, upgrade, signature, oracle, token-integration, and denial-of-service defects. Use for code-level Solidity or EVM review with explicit deployed and architectural assumptions.
- metadata.domain
- application-security
- metadata.subdomain
- smart-contract-code-audit
- metadata.triggers
- audit smart contract security, Solidity code audit, EVM contract code review, audit DeFi accounting logic, review proxy upgrade security
- metadata.tags
- Solidity, EVM, code-audit, state-machine, accounting, upgradeability
Audit Smart Contract Security
Audit executable state transitions and their assumptions. Do not infer deployed configuration, proxy targets, initialization, or external dependency behavior from source layout alone.
Reconstruct reachable state transitions
Inventory external entry points, modifiers, roles, delegate calls, callbacks, token hooks, signatures, upgrade routes, initialization, storage layout, factories, libraries, and cross-contract calls. Trace value, shares, debt, collateral, fees, voting power, nonces, timestamps, prices, and units through each security-critical transition.
Copy assets/contract-invariant-ledger.template.json into the workarea. Read references/contract-audit-method.md before classifying an accounting, upgrade, or composability finding.
Challenge implementation invariants
Review authorization at the final state-changing boundary; checks-effects-interactions and reentrant state; rounding and conservation; zero, maximum, stale, and partial states; signature domain and replay; proxy and initializer safety; storage collisions; oracle freshness and manipulation; token deviations; denial of service; and recovery behavior.
Route executable properties to test-smart-contract-invariants, broad protocol and deployment risk to assess-smart-contract-security, and tool operation to operate-evm-security-toolchain. Keep this skill centered on code evidence and variants.
Deliver
For each candidate, identify the violated invariant, reachable path, attacker-controlled inputs or state, required deployment assumptions, affected asset, control comparison, source locations, and smallest reproducible validation. Downgrade findings whose deployment or economic prerequisites remain unsupported.
© cyberful, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files (references, assets) in cyberful/builtin/skills/audit-smart-contract-security of cyberful/cyberful.
- SKILL.md
- agents/openai.yaml
- assets/contract-invariant-ledger.template.json
- references/contract-audit-method.md
Open the folder on GitHubat commit ec598a6
Compare with similar skills
Audit Smart Contract Security 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 |
|---|---|---|---|---|---|---|
| Audit Smart Contract Security this skillcyberful/cyberful | 135 | — | ~650 | Automated safety check: Pass | AGPL-3.0 | |
| Fizz Convertpashov/skills | 1.2k | 2 repos | ~3.7k | Automated safety check: Pass | MIT | |
| Smart Contract Auditgreatpie/smart-contract-audit-skill | 101 | — | ~1.1k | Automated safety check: Pass | None | |
| Solidity AuditorGabson0x/bountyforge | 442 | — | ~3.7k | Automated safety check: Pass | None | |
| Solidity Auditorpashov/skills | 1.2k | — | ~9.9k | Automated safety check: Pass | MIT | |
| Solidity Securitywshobson/agents | 40k | 12 repos | ~892 | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Audit Smart Contract Security
What does Audit Smart Contract Security do?
Audit smart-contract source and build evidence for authorization, accounting, state-machine, external-call, upgrade, signature, oracle, token-integration, and denial-of-service defects. Audit Smart Contract Security is an agent skill from cyberful/cyberful. Audit smart-contract source and build evidence for authorization, accounting, state-machine, external-call, upgrade, signature, oracle, token-integration, and denial-of-service defects.
When should I use Audit Smart Contract Security?
Audit Smart Contract Security fits situations like: code-level Solidity; EVM review with explicit deployed and architectural assumptions.
How do I install Audit Smart Contract Security in Claude Code?
Run `npx skills add cyberful/cyberful --skill audit-smart-contract-security -a claude-code`. Or copy the skill folder (cyberful/builtin/skills/audit-smart-contract-security in cyberful/cyberful) into .claude/skills/audit-smart-contract-security in your project. Claude Code loads it when a task matches its description.
How do I install Audit Smart Contract Security in Codex?
Run `npx skills add cyberful/cyberful --skill audit-smart-contract-security -a codex`. Or copy the skill folder (cyberful/builtin/skills/audit-smart-contract-security in cyberful/cyberful) into .agents/skills/audit-smart-contract-security in your project. Codex loads it when a task matches its description.
Can I use Audit Smart Contract Security 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 cyberful/cyberful --skill audit-smart-contract-security -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/audit-smart-contract-security, .gemini/skills/audit-smart-contract-security, .github/skills/audit-smart-contract-security and .opencode/skills/audit-smart-contract-security in your project.
What does Audit Smart Contract Security need to run?
SKILL.md names no scripts, command-line tools or credentials: Audit Smart Contract Security is instructions for the agent only.
Does Audit Smart Contract Security 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 Audit Smart Contract Security 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 Audit Smart Contract Security use?
Audit Smart Contract Security is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Audit Smart Contract Security use?
About 650 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 298 tokens, read only when the agent opens those files.
What are the alternatives to Audit Smart Contract Security?
Skills that share tags, products or a category with Audit Smart Contract Security: Fizz Convert (pashov/skills, 1.2k stars), Smart Contract Audit (greatpie/smart-contract-audit-skill, 101 stars), Solidity Auditor (Gabson0x/bountyforge, 442 stars) and Solidity Auditor (pashov/skills, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Audit Smart Contract Security?
cyberful (a GitHub organization) maintains it in cyberful/cyberful, which has 135 GitHub stars. The repository holds 85 skills in this directory. The repository was last updated on August 24, 2026.
Source: cyberful/cyberful on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.