Forensify
alexgreensh/repo-forensics
Cross-agent self-inspection of your AI-agent stack. An agent skill from alexgreensh/repo-forensics.
Run HOL Guard scanner and guard operations via uv run hol-guard.
Install Hol Guard
$ npx skills add hashgraph-online/hol-guard --skill hol-guard -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hashgraph-online/hol-guard hol-guard --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/hashgraph-online/hol-guard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.factory/skills/hol-guard .claude/skills/hol-guard && 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 "hol-guard" agent skill from https://github.com/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guard into .claude/skills/hol-guard/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hol-guard", 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/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guardType 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 hashgraph-online/hol-guard --skill hol-guard -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hashgraph-online/hol-guard hol-guard --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/hol-guard.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.factory/skills/hol-guard .agents/skills/hol-guard && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "hol-guard" agent skill from https://github.com/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guard into .agents/skills/hol-guard/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hol-guard", 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 hashgraph-online/hol-guard --skill hol-guard -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hashgraph-online/hol-guard hol-guard --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/hol-guard.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.factory/skills/hol-guard .cursor/skills/hol-guard && 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 "hol-guard" agent skill from https://github.com/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guard into .cursor/skills/hol-guard/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hol-guard", 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/hashgraph-online/hol-guard.git --path .factory/skills/hol-guard--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 hashgraph-online/hol-guard --skill hol-guard -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hashgraph-online/hol-guard hol-guard --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/hol-guard.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.factory/skills/hol-guard .gemini/skills/hol-guard && 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 "hol-guard" agent skill from https://github.com/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guard into .gemini/skills/hol-guard/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hol-guard", 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 hashgraph-online/hol-guard hol-guardInstalls 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 hashgraph-online/hol-guard --skill hol-guard -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hashgraph-online/hol-guard.git skills-src && mkdir -p .github/skills && cp -r skills-src/.factory/skills/hol-guard .github/skills/hol-guard && 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 "hol-guard" agent skill from https://github.com/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guard into .github/skills/hol-guard/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hol-guard", 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 hashgraph-online/hol-guard --skill hol-guard -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install hashgraph-online/hol-guard hol-guard --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hashgraph-online/hol-guard.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.factory/skills/hol-guard .opencode/skills/hol-guard && 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 "hol-guard" agent skill from https://github.com/hashgraph-online/hol-guard/tree/main/.factory/skills/hol-guard into .opencode/skills/hol-guard/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hol-guard", 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
hol-guard- GitHub stars
- 827
- Token cost
- ~542 tokens
- SKILL.md length
- 170 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Run HOL Guard scanner and guard operations via uv run hol-guard.
- The user asks to scan plugins/MCP/skills for security
- SKILL.md covers Prerequisites, Scanner Operations, Guard Operations and Common Test Fixtures, plus 1 more section
- Calls uv, claude and cursor
- Ecosystem compliance
What it does
Hol Guard is an agent skill from hashgraph-online/hol-guard. Run HOL Guard scanner and guard operations via uv run hol-guard. Use when the user asks to scan plugins/MCP/skills for security, quality, or ecosystem compliance, or when they ask to run guard detect/install/protect workflows for local AI harnesses.
Its SKILL.md is about 540 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 Security, covering Prompt injection and agent security and MCP servers. It works with Model Context Protocol. The repository describes itself as: Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers, plugins, and skills at runtime. The licence is Apache-2.0.
When your agent uses it
- The user asks to scan plugins/MCP/skills for security
- Ecosystem compliance
- They ask to run guard detect/install/protect workflows for local AI harnesses
Example prompts
- “/hol-guard”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit 4736564. 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:
uvclaudecursorgemini
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use uv, which can reach the network depending on how they are called.
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
Hol Guard loads about 542 tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 170 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 hashgraph-online/hol-guard at commit 4736564, republished under its Apache-2.0 licence (© hashgraph-online). 170 words, ~542 tokens.
Download SKILL.mdSave it as
.claude/skills/hol-guard/SKILL.md (or your agent's skills folder).- name
- hol-guard
- description
- Run HOL Guard scanner and guard operations via `uv run hol-guard`. Use when the user asks to scan plugins/MCP/skills for security, quality, or ecosystem compliance, or when they ask to run guard detect/install/protect workflows for local AI harnesses.
HOL Guard
HOL Guard is an AI Antivirus scanner that checks plugins, MCP servers, skills, and local AI harnesses for security, quality, and ecosystem compliance.
Prerequisites
- Always run from the
hol-guardproject root. - Use
uv run hol-guardto invoke the CLI. Never invoke Python modules directly. - Ensure
uv sync --frozen --extra devhas been run before invoking.
Scanner Operations
Scan a plugin or skill directory:
uv run hol-guard scan <directory> [--format json|text|markdown|sarif] [--profile default|public-marketplace|strict-security] [--fail-on-severity critical|high|medium|low|info|none]Lint rules:
uv run hol-guard lint <directory> [--list-rules] [--explain <rule-id>]Verify runtime:
uv run hol-guard verify <directory> [--online]List ecosystems:
uv run hol-guard --list-ecosystemsGuard Operations
Detect harnesses:
uv run hol-guard detect [codex|claude|cursor|gemini|opencode] [--json]Run guard in dry-run mode:
uv run hol-guard run <harness> --dry-run --default-action allow --jsonCheck guard status:
uv run hol-guard status [--json]Common Test Fixtures
Test fixtures live in tests/fixtures/:
good-plugin/- clean Codex plugin with all required fieldsbad-plugin/- plugin with secrets, missing fields, bad practicesmalicious-skill-plugin/- skill with malicious patternsmulti-ecosystem-repo/- repo with Codex, Claude, and Gemini configsclaude-plugin-good/- clean Claude pluginopencode-good/- clean OpenCode plugingemini-extension-good/- clean Gemini extension
Verification
After each operation, verify:
- Exit code 0 for clean targets
- Exit code non-zero for targets with findings
- Output is valid JSON when
--format jsonor--jsonis used - Scanner reports findings with correct rule IDs and severities
© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .factory/skills/hol-guard of hashgraph-online/hol-guard.
Open the folder on GitHubat commit 4736564
Compare with similar skills
Hol Guard 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 |
|---|---|---|---|---|---|---|
| Hol Guard this skillhashgraph-online/hol-guard | 827 | — | ~542 | Automated safety check: Pass | Apache-2.0 | |
| Forensifyalexgreensh/repo-forensics | 188 | — | ~2.5k | Automated safety check: Notes | Custom licence | |
| Plugin Scanneriflytek/skillhub | 5.2k | 2 repos | ~1.1k | Automated safety check: Notes | Apache-2.0 | |
| Hunt MCPEncod3d-Sec/TORCH | 329 | — | ~1.4k | Automated safety check: Pass | MIT | |
| MCP Server Security Auditawarexone/Agentic-Bug-Hunter | 5.3k | — | ~1.9k | Automated safety check: Warn | MIT | |
| Securing AI Systemstrilwu/secskills | 157 | — | ~2.9k | Automated safety check: Pass | MIT |
Similar skills
Plugin Scanner
iflytek/skillhub
Scan AI agent skills, plugins, MCP servers, and agent tooling for prompt injection, unsafe commands, secret exposure, and supply-chain risks before installing or trusting them.
Hunt MCP
Encod3d-Sec/TORCH
MCP server attack hunting - tool poisoning, indirect prompt injection via tool output, rug-pull updates, cross-tool shadowing, over-permissioned/excessive-agency tools, lethal trifecta.
MCP Server Security Audit
awarexone/Agentic-Bug-Hunter
Audits MCP servers and their client configs for tool poisoning, prompt injection, over-privileged tools, injection bugs, secret leaks and missing approval gates.
Securing AI Systems
trilwu/secskills
Assess and harden LLM applications and agentic systems against prompt injection, tool misuse, excessive agency, memory poisoning, RAG data leakage, and model supply-chain risk, mapped to the OWASP…
Auditing MCP Servers For Tool Poisoning
mukul975/Anthropic-Cybersecurity-Skills
Audit MCP servers for tool poisoning, tool shadowing, rug pulls, SSRF, and unauthenticated exposure using Invariant Labs' mcp-scan for static/runtime scanning plus manual SSRF/auth checks and…
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Status
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Check HOL Guard local protection status for Claude Code without changing configuration.
Hol Guard Protection
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Categories
Questions about Hol Guard
What does Hol Guard do?
Run HOL Guard scanner and guard operations via uv run hol-guard. Hol Guard is an agent skill from hashgraph-online/hol-guard. Run HOL Guard scanner and guard operations via uv run hol-guard.
When should I use Hol Guard?
Hol Guard fits situations like: the user asks to scan plugins/MCP/skills for security; ecosystem compliance; they ask to run guard detect/install/protect workflows for local AI harnesses.
How do I install Hol Guard in Claude Code?
Run `npx skills add hashgraph-online/hol-guard --skill hol-guard -a claude-code`. Or copy the skill folder (.factory/skills/hol-guard in hashgraph-online/hol-guard) into .claude/skills/hol-guard in your project. Claude Code loads it when a task matches its description.
How do I install Hol Guard in Codex?
Run `npx skills add hashgraph-online/hol-guard --skill hol-guard -a codex`. Or copy the skill folder (.factory/skills/hol-guard in hashgraph-online/hol-guard) into .agents/skills/hol-guard in your project. Codex loads it when a task matches its description.
Can I use Hol Guard 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 hashgraph-online/hol-guard --skill hol-guard -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hol-guard, .gemini/skills/hol-guard, .github/skills/hol-guard and .opencode/skills/hol-guard in your project.
What does Hol Guard need to run?
Going by SKILL.md and its folder, Hol Guard needs the command-line tools its instructions call (uv, claude, cursor and gemini). Our summary lists: Python 3.
Does Hol Guard access the network?
SKILL.md contains no URLs. Its commands use uv, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Hol Guard 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 Hol Guard use?
Hol Guard is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Hol Guard use?
About 542 tokens (SKILL.md is roughly 2.2k 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 Hol Guard?
Skills that share tags, products or a category with Hol Guard: Forensify (alexgreensh/repo-forensics, 188 stars), Plugin Scanner (iflytek/skillhub, 5.2k stars), Hunt MCP (Encod3d-Sec/TORCH, 329 stars) and MCP Server Security Audit (awarexone/Agentic-Bug-Hunter, 5.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Hol Guard?
hashgraph-online (a GitHub organization) maintains it in hashgraph-online/hol-guard, which has 827 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 9, 2026.
Source: hashgraph-online/hol-guard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.