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 HermeticOrmus/LibreSecOps-Claude-Code --skill cvss-scoringgit clone --depth 1 https://github.com/HermeticOrmus/LibreSecOps-Claude-CodeWrote 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/hermeticormus/libresecops-claude-code/cvss-scoring)<a href="https://agentmods.dev/skills/hermeticormus/libresecops-claude-code/cvss-scoring"><img src="https://agentmods.dev/badge/skills/hermeticormus/libresecops-claude-code/cvss-scoring/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/hermeticormus/libresecops-claude-code/cvss-scoring"><img src="https://agentmods.dev/badge/skills/hermeticormus/libresecops-claude-code/cvss-scoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00050 | $0.02543 |
| Opus 5.5 | $0.00020 | $0.01017 |
| Sonnet 5.5 | $0.00010 | $0.00509 |
| Haiku 4.5 | $0.00005 | $0.00254 |
Grade A, and why
cvss-scoring scanned grade A with 0 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 12d 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CVSS Scoring Methodology
Reference knowledge base for the Common Vulnerability Scoring System (CVSS) v3.1 and v4.0, including metric definitions, scoring guidance, and practical application.
Knowledge Base
CVSS v3.1
CVSS v3.1 is the most widely used vulnerability scoring system. It produces a score from 0.0 to 10.0 across three metric groups: Base, Temporal, and Environmental.
Base Metrics
Base metrics represent the intrinsic characteristics of a vulnerability that are constant over time and across environments.
Attack Vector (AV) -- How the vulnerability is exploited:
| Value | Code | Description | Example |
|---|---|---|---|
| Network | N | Exploitable via network, no special access needed | Remote code execution via HTTP request |
| Adjacent | A | Requires adjacent network access (same LAN, Bluetooth, etc.) | ARP spoofing attack |
| Local | L | Requires local access (shell, physical keyboard, local app) | Privilege escalation from local user |
| Physical | P | Requires physical access to the device | USB-based attack, cold boot attack |
Attack Complexity (AC) -- Conditions beyond attacker control:
| Value | Code | Description | Example |
|---|---|---|---|
| Low | L | No special conditions required | Sending a crafted HTTP request |
| High | H | Requires specific conditions (race condition, MITM position, specific config) | Exploiting a race condition with tight timing window |
Privileges Required (PR) -- Level of privileges needed before exploitation:
| Value | Code | Description | Example |
|---|---|---|---|
| None | N | No authentication needed | Unauthenticated RCE |
| Low | L | Basic user-level access | Authenticated user exploiting IDOR |
| High | H | Significant privileges (admin) | Admin panel vulnerability |
User Interaction (UI) -- Whether a user other than the attacker must participate:
| Value | Code | Description | Example |
|---|---|---|---|
| None | N | No user interaction needed | Server-side vulnerability exploited directly |
| Required | R | User must perform an action | Clicking a malicious link (XSS), opening a file |
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.
- 12d ago Changed · +5 lines · +50 tokens per session 7430f87e6402
- 1mo ago First seen · 201 lines · 0 tokens per session scan A 08a589ab2057
cvss-scoring is a skill published in the GitHub repository HermeticOrmus/LibreSecOps-Claude-Code (4 stars, last pushed 9d ago), licensed MIT. It adds 50 tokens to every session and 2,543 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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