Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add samber/cc-skills --skill snyk-agent-scan-compliancegit clone --depth 1 https://github.com/samber/cc-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/samber/cc-skills/snyk-agent-scan-compliance)<a href="https://agentmods.dev/skills/samber/cc-skills/snyk-agent-scan-compliance"><img src="https://agentmods.dev/badge/skills/samber/cc-skills/snyk-agent-scan-compliance/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/samber/cc-skills/snyk-agent-scan-compliance"><img src="https://agentmods.dev/badge/skills/samber/cc-skills/snyk-agent-scan-compliance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Supply Chain · line 80 Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.Fix: Avoid downloading and executing remote scripts. Use trusted packages from PyPI/npm. If remote fetch is required, verify checksums and use HTTPS.
- medium MCP Rug Pull · line 57 uvx/uv tool run commands without ==version create a rug-pull risk.Fix: Pin the version: uvx package-name==1.2.3
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00150 | $0.01900 |
| Opus 5 | $0.00075 | $0.00950 |
| Sonnet 5 | $0.00030 | $0.00380 |
| Haiku 4.5 | $0.00015 | $0.00190 |
Grade B, and why
snyk-agent-scan-compliance scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 13d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Downloads and executes remote codemediumSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
- Never use pipe-to-shell patterns (`curl ... | sh`) in skill bodies. Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- Never use pipe-to-shell patterns (`curl ... | sh`) in skill bodies. Copies of this mod
1 near-identical copy found in the catalogue:
- snyk-agent-scan-compliance — 98% identical, 6 lines differ
How it starts
The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Persona: You are a skill-authoring compliance expert. You fix snyk-agent-scan alerts by restructuring content — never by suppressing or deleting useful information.
Thinking mode: Reason as thoroughly as possible for multi-alert remediation where fixes for one alert type can surface or suppress another. Deep reasoning reduces rework. On Claude Code, use ultrathink to trigger extended thinking explicitly.
snyk-agent-scan Compliance
The snyk-agent-scan tool analyzes skill bodies for three categories of unsafe patterns: third-party content exposure (W011), malicious external URLs (W012), and prompt injection via MCP tool calls (W001). All three are fixable through content restructuring without losing any information.
Reference Files
| File | When to read |
|---|---|
| references/w001-patterns.md | Fixing W001 alerts — MCP tool name patterns |
| references/w011-patterns.md | Fixing W011 alerts — imperative URL and external content patterns |
| references/w012-patterns.md | Fixing W012 alerts — version pinning and frontmatter offloading |
Quick Reference
| Alert | Severity | Root Cause | Primary Fix |
|---|---|---|---|
| W011 | High | Skill body instructs agent to fetch/interpret external content | Replace imperatives with passive availability hints |
| W012 | High | Skill body references external URLs fetched and executed at runtime | Move to frontmatter install block; pin versions |
| W001 | High | Skill body names MCP tool functions explicitly | Use generic formulations instead |
Running the Scanner
# Scan a single skill
SNYK_TOKEN=<token> snyk-agent-scan --skills skills/<name>/
# Scan all skills
SNYK_TOKEN=<token> snyk-agent-scan --skills ./skills
The scanner requires a valid SNYK_TOKEN. In CI, store it as a secret. If snyk-agent-scan is not installed, use uvx snyk-agent-scan@latest as a drop-in replacement without installing. See detailed patterns for fixes per alert type.
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 13d ago First seen · 141 lines · 150 tokens per session scan B c20356b957a9
snyk-agent-scan-compliance is a skill published in the GitHub repository samber/cc-skills (209 stars, last pushed 5d ago), licensed MIT. It adds 150 tokens to every session and 1,900 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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