lexis-two-security

lexis-two-security is a skill for Claude Code, Codex, Cursor from nitdraig/lexis-two. It costs 23 tokens per session (230 once invoked), scanned A, original, no licence file.

A security-auditing aid for applications built with Node.js, TypeScript, Next.js, MongoDB, or PostgreSQL.

In plain words
What is it for?
Use it to review the security of code and data systems using these tools.
Why use it?
It helps look for security problems in those technology stacks.

Skill for Claude CodeCodexCursor

Part of the lexis-two plugin — 13 skills, 15 commands, 2 hooks shipped together

Install

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.

agentmods
npx agentmods add skills/nitdraig/lexis-two/lexis-two-security
Any agent
npx skills add nitdraig/lexis-two --skill lexis-two-security
Clone the repo
git clone --depth 1 https://github.com/nitdraig/lexis-two

Made for: Claude Code, Codex, Cursor.

Or install lexis-two, the plugin that ships this one along with the rest of its 13 skills, 15 commands, 2 hooks.

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 lexis-two-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/nitdraig/lexis-two/lexis-two-security.svg)](https://agentmods.dev/skills/nitdraig/lexis-two/lexis-two-security)
Your own site
<a href="https://agentmods.dev/skills/nitdraig/lexis-two/lexis-two-security"><img src="https://agentmods.dev/badge/skills/nitdraig/lexis-two/lexis-two-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 230 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00023 $0.00230
Opus 5 $0.00012 $0.00115
Sonnet 5 $0.00005 $0.00046
Haiku 4.5 $0.00002 $0.00023

Measured 5d ago against content hash a5e835d32ed3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

lexis-two-security scanned grade A with 1 finding 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 5d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

grep -rn "dangerouslySetInnerHTML\|eval(\|exec(\|execSync(" src
.cursor/skills/lexis-two-security/SKILL.md · 25 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 5d ago First seen · 25 lines · 23 tokens per session scan A a5e835d32ed3

Subscribe to this mod's changes

lexis-two-security is a skill published in the GitHub repository nitdraig/lexis-two (2 stars, last pushed 2mo ago), with no licence file. It adds 23 tokens to every session and 230 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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