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AltirraSDL: Skill for Claude Code

.claude/skills/sdl3/SKILL.md

sdl3 is a skill for Claude Code from ilmenit/AltirraSDL. It costs 56 tokens per session (664 once invoked), scanned A, original, GPL-2.0.

A reference for the SDL3 programming library and its related image, audio, font, and networking libraries. It provides function details, parameters, return values, notes, and examples.

In plain words
What is it for?
Use it when writing or reviewing code that works with SDL3, SDL3_image, SDL3_mixer, SDL3_ttf, or SDL3_net.
Why use it?
It gives developers the information needed to use SDL3 APIs correctly without relying on incomplete or outdated guesses.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is ilmenit/AltirraSDL's own configuration. It tells Claude Code how to work on AltirraSDL itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything AltirraSDL configures →

not rated 57 5d ago A scan 56 tokens GPL-2.0
View the source file ilmenit/AltirraSDL
Reuse

Borrowing it

Nothing to install: this file belongs to ilmenit/AltirraSDL. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ilmenit/AltirraSDL/main/.claude/skills/sdl3/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ilmenit/AltirraSDL

Made for: Claude Code.

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 sdl3

README.md
[![agentmods](https://agentmods.dev/badge/skills/ilmenit/altirrasdl/sdl3.svg)](https://agentmods.dev/skills/ilmenit/altirrasdl/sdl3)
Your own site
<a href="https://agentmods.dev/skills/ilmenit/altirrasdl/sdl3"><img src="https://agentmods.dev/badge/skills/ilmenit/altirrasdl/sdl3.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 664 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 5.1 $0.00056 $0.00664
Opus 5 $0.00028 $0.00332
Sonnet 5 $0.00011 $0.00133
Haiku 4.5 $0.00006 $0.00066

Measured yesterday against content hash 61a6b3877c8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

sdl3 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 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.

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.

.claude/skills/sdl3/SKILL.md · 62 lines

The source is not reproduced here

Licensed GPL-2.0

The repository is licensed GPL-2.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

60 files 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. yesterday First seen · 62 lines · 56 tokens per session scan A 61a6b3877c8e

Subscribe to this mod's changes

sdl3 is a skill published in the GitHub repository ilmenit/AltirraSDL (57 stars, last pushed 5d ago), licensed GPL-2.0. It adds 56 tokens to every session and 664 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 2026-09-04.

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