cve-risk-score

cve-risk-score is a skill for Claude Code from transilienceai/communitytools. It costs 38 tokens per session (579 once invoked), scanned A, original, MIT.

A lookup tool for CVE identifiers, which are standard labels for publicly reported security vulnerabilities. It retrieves each vulnerability’s score, severity, weakness category, and description from the National Vulnerability Database.

In plain words
What is it for?
It helps review vulnerability reports, compare CVE severity, identify the related CWE weakness category, and summarize known security issues.
Why use it?
It removes the need to search the vulnerability database manually whenever a CVE is mentioned. The results add consistent risk context to security discussions.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 tools/nvd-lookup.py CVE-XXXX-XXXXX [CVE-YYYY-YYYYY ...].

Part of the communitytools plugin — 48 skills, 5 commands, 9 agents, 1 hook shipped together

Good fit It helps review vulnerability reports, compare CVE severity, identify the related CWE weakness category, and summarize known security issues.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/transilienceai/communitytools
agentmods
npx agentmods add skills/transilienceai/communitytools/cve-risk-score

Made for: Claude Code.

Or install communitytools, the plugin that ships this one along with the rest of its 48 skills, 5 commands, 9 agents, 1 hook.

Wrote 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.

agentmods badge for cve-risk-score

README.md
[![agentmods](https://agentmods.dev/badge/skills/transilienceai/communitytools/cve-risk-score/github.svg)](https://agentmods.dev/skills/transilienceai/communitytools/cve-risk-score)
Your own site
<a href="https://agentmods.dev/skills/transilienceai/communitytools/cve-risk-score"><img src="https://agentmods.dev/badge/skills/transilienceai/communitytools/cve-risk-score/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.

agentmods 80×15 button for cve-risk-score

Your own site · 80×15
<a href="https://agentmods.dev/skills/transilienceai/communitytools/cve-risk-score"><img src="https://agentmods.dev/badge/skills/transilienceai/communitytools/cve-risk-score.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 579 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.00579
Opus 5 $0.00019 $0.00290
Sonnet 5 $0.00008 $0.00116
Haiku 4.5 $0.00004 $0.00058

Measured 11d ago against content hash 1a81881e91af, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

cve-risk-score 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 11d 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.

skills/cve-risk-score/SKILL.md · 54 lines

How it starts

The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CVE Risk Score

Fetch and display CVE risk scores from the National Vulnerability Database (NVD) whenever a CVE ID appears in conversation.

Trigger

This skill MUST be invoked automatically whenever a CVE ID (pattern CVE-YYYY-NNNNN) is mentioned by the user or discovered during research/scanning. Do not wait for explicit invocation.

Workflow

  1. Extract CVE IDs from the user's message or tool output (regex: CVE-\d{4}-\d{4,})

  2. Run the lookup script:

    python3 tools/nvd-lookup.py CVE-XXXX-XXXXX [CVE-YYYY-YYYYY ...]
    
  3. Present the results in a concise table format:

    CVE ID Score Severity CWE Description
    CVE-XXXX-XXXXX 9.8 CRITICAL CWE-79 ...
  4. Continue with the user's original task — the score lookup is supplementary context, not a blocking step.

Output Format

When presenting CVE risk scores inline, use this compact format:

CVE-2024-12345: 9.8 CRITICAL (CWE-79) — Remote code execution via ...

For multiple CVEs, use a markdown table.

Rules

  1. Always invoke — every CVE ID mentioned triggers a lookup. No exceptions.
  2. Non-blocking — fetch scores in parallel with other work when possible.
  3. Accurate data only — display exactly what NVD returns. Never estimate or fabricate scores.
  4. Graceful degradation — if NVD is unreachable or the CVE has no score yet, say so explicitly (e.g., "Not yet scored by NVD").
  5. Rate limiting — the script handles rate limits internally. For bulk lookups (5+), warn that NVD throttles unauthenticated requests.
  6. API key — if NVD_API_KEY is set in .env, the script uses it for higher rate limits.

Integration

This skill complements other skills:

  • cve-poc-generator: After seeing the risk score, the user may want a full PoC and report
  • reconnaissance / source-code-scanning: When these skills discover CVEs in dependencies, auto-lookup their scores
  • coordination: CVE scores inform priority and severity classification in findings

Read the full file on GitHub · 54 lines

Files

What ships with it

1 file 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.

Changes

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.

  1. 11d ago First seen · 54 lines · 38 tokens per session scan A 1a81881e91af

Subscribe to this mod's changes

cve-risk-score is a skill published in the GitHub repository transilienceai/communitytools (520 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 579 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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