security-best-practices

security-best-practices is a skill for Claude Code, Codex from conversionfactory/agent-config. It costs 55 tokens per session (2,256 once invoked), scanned A, original, no licence file.

A guide to securing web applications and infrastructure against common risks, including cross-site scripting, SQL injection, and request forgery.

In plain words
What is it for?
Use it to secure APIs, configure HTTPS and CORS, add rate limits, and address risks from the OWASP Top 10 security list.
Why use it?
It helps identify and prevent security weaknesses in websites, APIs, and the systems that run them.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to secure APIs, configure HTTPS and CORS, add rate limits, and address risks from the OWASP Top 10 security list.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/conversionfactory/agent-config/security-best-practices
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.

Any agent
npx skills add conversionfactory/agent-config --skill security-best-practices
Clone the repo
git clone --depth 1 https://github.com/conversionfactory/agent-config

Made for: Claude Code, Codex.

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 security-best-practices

README.md
[![agentmods](https://agentmods.dev/badge/skills/conversionfactory/agent-config/security-best-practices.svg)](https://agentmods.dev/skills/conversionfactory/agent-config/security-best-practices)
Your own site
<a href="https://agentmods.dev/skills/conversionfactory/agent-config/security-best-practices"><img src="https://agentmods.dev/badge/skills/conversionfactory/agent-config/security-best-practices.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,256 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.
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 5.1 $0.00055 $0.02256
Opus 5 $0.00028 $0.01128
Sonnet 5 $0.00011 $0.00451
Haiku 4.5 $0.00006 $0.00226

Measured 3d ago against content hash e69d3aa9b136, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

security-best-practices 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 3d 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.

shared/skills/security-best-practices/SKILL.md · 287 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

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. 3d ago First seen · 287 lines · 55 tokens per session scan A e69d3aa9b136

Subscribe to this mod's changes

security-best-practices is a skill published in the GitHub repository conversionfactory/agent-config (11 stars, last pushed 9d ago), with no licence file. It adds 55 tokens to every session and 2,256 once invoked, about $0.0003 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 2026-09-03.

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