# Send SkillGuard Scanner to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "skillguard-scanner",
    "name": "SkillGuard Scanner",
    "source": "tencent",
    "type": "skill",
    "category": "安全合规",
    "sourceUrl": "https://clawhub.ai/msgnoki/skillguard-scanner",
    "canonicalUrl": "https://clawhub.ai/msgnoki/skillguard-scanner",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/skillguard-scanner",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=skillguard-scanner",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "CHANGELOG.md",
      "SKILL.md",
      "references/threat-landscape.md",
      "scripts/scanner.py"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "skillguard-scanner",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-29T17:19:30.848Z",
      "expiresAt": "2026-05-06T17:19:30.848Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=skillguard-scanner",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=skillguard-scanner",
        "contentDisposition": "attachment; filename=\"skillguard-scanner-1.1.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "skillguard-scanner"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/skillguard-scanner"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/skillguard-scanner",
    "downloadUrl": "https://openagent3.xyz/downloads/skillguard-scanner",
    "agentUrl": "https://openagent3.xyz/skills/skillguard-scanner/agent",
    "manifestUrl": "https://openagent3.xyz/skills/skillguard-scanner/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/skillguard-scanner/agent.md"
  }
}
```
## Documentation

### SkillGuard — Skill Security Scanner

Scan OpenClaw skills for security threats before they compromise your system.

### Scan all installed skills

python3 {scripts}/scanner.py

### Scan a single skill

python3 {scripts}/scanner.py --skill <skill-name>

### Check a skill name for typosquatting

python3 {scripts}/scanner.py --check-name <name>

### Scan from ClawHub before installing

python3 {scripts}/scanner.py --fetch-clawhub <skill-name>

### Critical Threats

Reverse shells — nc -e, bash -i >& /dev/tcp, ncat, mkfifo
Code obfuscation — base64 -d | bash, eval(), exec() with encoded payloads

### High Threats

Suspicious URLs — webhook.site, glot.io, ngrok.io, pastebin.com
Memory poisoning — Instructions to write to SOUL.md, MEMORY.md, AGENTS.md
Malicious prerequisites — Download instructions in docs (the ClawHavoc attack vector)

### Medium Threats

Credential access — Patterns accessing .env, API keys, tokens, SSH keys
Data exfiltration — Outbound HTTP POST/PUT with sensitive data
Hardcoded IPs — Public IPs embedded in code
Typosquatting — Skill names similar to popular/known skills (Levenshtein ≤ 2)
Crypto wallet access — Seed phrases, private keys, wallet patterns

### Low Threats

Shell execution — subprocess, os.system, child_process (common but worth noting)

### Risk Levels

🔴 CRITICAL (≥50) — Do NOT install. Likely malicious.
🟠 HIGH (25-49) — Review manually before installing. Multiple suspicious patterns.
🟡 MEDIUM (10-24) — Some flags, likely false positives but worth checking.
🟢 LOW (1-9) — Minor flags, generally safe.
✅ CLEAN (0) — No issues detected.

### False Positive Likelihood

Each finding includes a FP estimate (low/medium/high):

low — Likely a real threat
medium — Could be legitimate, review context
high — Probably benign (e.g., security tool referencing attack patterns, search tool using fetch)

### Workflow: Before Installing a Skill

Run python3 {scripts}/scanner.py --fetch-clawhub <skill-name> (requires clawhub CLI)
Review the report — anything CRITICAL or HIGH with low FP = reject
If CLEAN or LOW only → safe to install
If MEDIUM → skim the flagged files manually

### Output

Console summary with emoji risk levels
JSON report saved to {baseDir}/../data/scan_results.json (configurable via --json-out)

### Context: Why This Matters

As of February 2026, 341 malicious skills were found on ClawHub (Koi Security / ClawHavoc campaign), distributing Atomic Stealer malware via fake prerequisites. OpenClaw has 512 known vulnerabilities (Kaspersky audit). There is no official skill vetting process. SkillGuard fills this gap.

See references/threat-landscape.md for detailed background.
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: msgnoki
- Version: 1.1.0
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-04-29T17:19:30.848Z
- Expires at: 2026-05-06T17:19:30.848Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/skillguard-scanner)
- [Send to Agent page](https://openagent3.xyz/skills/skillguard-scanner/agent)
- [JSON manifest](https://openagent3.xyz/skills/skillguard-scanner/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/skillguard-scanner/agent.md)
- [Download page](https://openagent3.xyz/downloads/skillguard-scanner)