best-practices

best-practices is a skill for Claude Code, Codex from damacus/agent-skills. It costs 49 tokens per session (4,063 once invoked), scanned A, original, no licence file.

A set of practices for building and reviewing modern web applications, covering security, compatibility, and code quality.

In plain words
What is it for?
It is for best-practices reviews, security audits, code modernization, code-quality checks, and vulnerability checks.
Why use it?
It provides a checklist and review approach for finding outdated patterns, security risks, and quality problems.

Skill for Claude CodeCodex

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

Good fit It is for best-practices reviews, security audits, code modernization, code-quality checks, and vulnerability checks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/damacus/agent-skills/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 damacus/agent-skills --skill best-practices
Clone the repo
git clone --depth 1 https://github.com/damacus/agent-skills

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 best-practices

README.md
[![agentmods](https://agentmods.dev/badge/skills/damacus/agent-skills/best-practices.svg)](https://agentmods.dev/skills/damacus/agent-skills/best-practices)
Your own site
<a href="https://agentmods.dev/skills/damacus/agent-skills/best-practices"><img src="https://agentmods.dev/badge/skills/damacus/agent-skills/best-practices.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,063 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00049 $0.04063
Opus 5 $0.00024 $0.02031
Sonnet 5 $0.00010 $0.00813
Haiku 4.5 $0.00005 $0.00406

Measured 8d ago against content hash 432875ade263, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

best-practices 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

const response = await fetch(url);
skills/best-practices/SKILL.md · 642 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. 8d ago First seen · 642 lines · 49 tokens per session scan A 432875ade263

Subscribe to this mod's changes

best-practices is a skill published in the GitHub repository damacus/agent-skills (2 stars, last pushed 19d ago), with no licence file. It adds 49 tokens to every session and 4,063 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.