pixijs-skills: Instructions file for Codex

AGENTS.md

pixijs-skills AGENTS.md is an instructions file for Codex, OpenCode from pixijs/pixijs-skills. It costs 371 tokens per session, scanned A, original, MIT.

A set of instructions for AI agents working on a repository of PixiJS skills. PixiJS is a JavaScript library for creating interactive graphics and games in the browser.

In plain words
What is it for?
Use it when adding or updating PixiJS skill folders, writing their SKILL.md files, checking required metadata, or following the repository’s organization and reference rules.
Why use it?
It gives agents consistent rules for finding, editing, and documenting skills in that repository. This reduces mistakes in file names, metadata, structure, and project conventions.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is pixijs/pixijs-skills's own configuration. It tells Codex and OpenCode how to work on pixijs-skills 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 pixijs-skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pixijs/pixijs-skills. 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/pixijs/pixijs-skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/pixijs/pixijs-skills

Made for: Codex, OpenCode.

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.

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README.md
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/pixijs/pixijs-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/pixijs/pixijs-skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 371 This file is loaded in full into every session.
When invoked 371 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 $0.00371 $0.00371
Opus 5 $0.00186 $0.00186
Sonnet 5 $0.00074 $0.00074
Haiku 4.5 $0.00037 $0.00037

Measured 10d ago against content hash 8f35a435affd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pixijs-skills AGENTS.md 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 10d 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.

AGENTS.md · 28 lines

What it actually says

Guidance for AI Agents Working in This Repo

This repository contains PixiJS skills for AI coding agents. When editing or adding skills, follow these rules.

Repo structure

  • skills/ — Each subdirectory is one skill. The CLI and agents discover skills by scanning skills/ for directories that contain SKILL.md.
  • Skill directory name must exactly match the name in that skill’s frontmatter (e.g. skills/pixijs-events/name: pixijs-events).

SKILL.md requirements

  • Frontmatter (YAML):
    • name (required): lowercase, hyphens only, max 64 chars, must match parent directory name.
    • description (required): what the skill does and when to use it; include trigger terms so agents know when to apply it. Max 1024 chars.
    • license (optional): e.g. MIT if the skill is under the repo license.
  • Body: Markdown instructions. Keep under ~500 lines; put long reference material in references/ or scripts/ and link from SKILL.md.

Conventions

  • Write descriptions in third person (e.g. "Use when…" not "You can use when…").
  • Be concise; avoid restating general PixiJS docs. Focus on correct API usage, pitfalls, and v8 patterns.
  • When adding a new skill: create skills/<skill-name>/SKILL.md, then update README.md "Skills" table and "Structure" section.

References

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. 10d ago First seen · 28 lines · 371 tokens per session scan A 8f35a435affd

Subscribe to this mod's changes

pixijs-skills AGENTS.md is an instructions file published in the GitHub repository pixijs/pixijs-skills (327 stars, last pushed 3mo ago), licensed MIT. It adds 371 tokens to every session, about $0.0019 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 2026-08-30.

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