security-review

A C++ security checklist and set of coding patterns for projects that handle user input, saved memory, files, or network connections.

In plain words
What is it for?
Reviewing C++ code for security issues and applying safer patterns when implementing input handling, memory, file operations, or network features.
Why use it?
It helps developers check common security risks in code that reads data, writes files, or communicates over a network.

Skill for Claude CodeCodex

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/steven715/cpp-claude-code/security-review
Any agent
npx skills add steven715/cpp-claude-code --skill security-review
Clone the repo
git clone --depth 1 https://github.com/steven715/cpp-claude-code

Made for: Claude Code, Codex.

Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,636 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 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 $0.00037 $0.04636
Opus 5 $0.00018 $0.02318
Sonnet 5 $0.00007 $0.00927
Haiku 4.5 $0.00004 $0.00464

Measured yesterday against content hash 735a6124dcfb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

security-review scanned grade B 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 yesterday.

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.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

EXPECT_FALSE(is_safe_path("/data", "../../root/.ssh/id_rsa"));

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/security-review/SKILL.md · 710 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. yesterday First seen · 710 lines · 37 tokens per session scan B 735a6124dcfb

Subscribe to this mod's changes

security-review is a skill published in the GitHub repository steven715/cpp-claude-code (2 stars, last pushed 7mo ago), with no licence file. It adds 37 tokens to every session and 4,636 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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