secure-coding

secure-coding is a skill for Claude Code, Codex from roodlicht/accans-sec-skills. It costs 42 tokens per session (3,705 once invoked), scanned A, original, no licence file.

A general guide to safer software development across programming languages. It covers validating input, preventing injection attacks, handling login and permissions, using cryptography, protecting secrets, and managing dependencies.

In plain words
What is it for?
Use it while designing or reviewing code that accepts user input, authenticates users, protects data, stores credentials, or relies on third-party packages.
Why use it?
It gives developers a baseline set of security patterns when their language or framework does not have a more specific guide.

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 while designing or reviewing code that accepts user input, authenticates users, protects data, stores credentials, or relies on third-party packages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/roodlicht/accans-sec-skills/secure-coding
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 roodlicht/accans-sec-skills --skill secure-coding
Clone the repo
git clone --depth 1 https://github.com/roodlicht/accans-sec-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 secure-coding

README.md
[![agentmods](https://agentmods.dev/badge/skills/roodlicht/accans-sec-skills/secure-coding.svg)](https://agentmods.dev/skills/roodlicht/accans-sec-skills/secure-coding)
Your own site
<a href="https://agentmods.dev/skills/roodlicht/accans-sec-skills/secure-coding"><img src="https://agentmods.dev/badge/skills/roodlicht/accans-sec-skills/secure-coding.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,705 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 3 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 $0.00042 $0.03705
Opus 5 $0.00021 $0.01852
Sonnet 5 $0.00008 $0.00741
Haiku 4.5 $0.00004 $0.00370

Measured 7d ago against content hash c14b5db38c0e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

secure-coding scanned grade A with 3 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 7d 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- **Runtime minimalism.** Container does not run as root. Filesystem read-only where possible. Seccomp/AppArmor defaults on. Egress network policies. See `container-hardening` and `k8s-security` for depth.

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

Makes network callslowCapability

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

- **TLS 1.2+ minimum, 1.3 preferred. Certificate validation always on.** `verify=False` in requests/curl is a staging hack, not a production config.

Runs shell commandslowCapability

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

subprocess.Popen(f"git clone {url}", shell=True)
skills/secure-coding/SKILL.md · 248 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. 7d ago First seen · 248 lines · 42 tokens per session scan A c14b5db38c0e

Subscribe to this mod's changes

secure-coding is a skill published in the GitHub repository roodlicht/accans-sec-skills (4 stars, last pushed 3mo ago), with no licence file. It adds 42 tokens to every session and 3,705 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 3 findings (asks for root, makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.