explain-this AGENTS.md

Repository instructions for an explainer-writing plugin and Agent Skills package. It defines where plugin metadata, skills, documentation, tests, and reusable article templates belong.

In plain words
What is it for?
Organizing and maintaining the plugin, creating or editing explanatory skills, searching documentation, serving generated explainers locally, and following the repository's testing layout.
Why use it?
It gives maintainers a consistent structure and simple checks for extending the package without breaking how its skills and plugin files are discovered.

Instructions file for CodexOpenCode

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.

agentmods
npx agentmods add instructions/analyticalmonk/explain-this/agents-md
Clone the repo
git clone --depth 1 https://github.com/analyticalmonk/explain-this

Made for: Codex, OpenCode.

Per session 680 This file is loaded in full into every session.
When invoked 680 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00680 $0.00680
Opus 5 $0.00340 $0.00340
Sonnet 5 $0.00136 $0.00136
Haiku 4.5 $0.00068 $0.00068

Measured 2d ago against content hash ab917aea7d8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

explain-this 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 2d 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 · 31 lines

How it starts

The opening of the file, as written. The whole thing — 31 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

This repository is a Claude Code and Codex plugin plus Agent Skills package. Plugin metadata lives in .claude-plugin/ for Claude Code and .codex-plugin/plugin.json for Codex. The three skills live under skills/<skill-name>/SKILL.md; keep that layout flat (one skill folder per name, SKILL.md directly inside) - it is what the skills.sh CLI (npx skills add) and OpenClaw discover. Codex UI metadata lives in skills/*/agents/openai.yaml. Deeper guidance is kept in skills/*/references/, and reusable article scaffolding is in skills/creating-explainers/assets/article-template.html. Human-facing installation and usage docs are in README.md, while CLAUDE.md captures maintainer guidance for Claude Code. Planning and design notes belong in docs/, and evaluation prompts are centralized in evals/evals.json.

Build, Test, and Development Commands

There is no package manager, build step, or dependency install for this repo. Useful local commands are:

  • rg "term" skills docs README.md - search skill and documentation content.
  • python3 -m http.server 8000 - serve a generated explainer directory that contains index.html for browser inspection.
  • python3 /home/analyticalmonk/.codex/skills/.system/plugin-creator/scripts/validate_plugin.py . - validate Codex plugin metadata.
  • git diff --check - catch whitespace issues before committing.

Generated articles must remain standalone HTML with inline CSS and JavaScript.

Coding Style & Naming Conventions

Use Markdown for skill and reference instructions. Keep SKILL.md files focused on trigger rules and workflow; put long, situational guidance in references/ so it loads lazily. Use lowercase kebab-case for skill and reference names, for example creating-explainers and voice-and-style.md. Keep agents/openai.yaml short and aligned with the skill frontmatter. Avoid em dashes in repository prose and templates. Produced article code should stay vanilla HTML/CSS/JS with no npm, React, D3, Tailwind, or shared build tooling.

Read the full file on GitHub · 31 lines

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. 2d ago First seen · 31 lines · 680 tokens per session scan A ab917aea7d8e

Subscribe to this mod's changes

explain-this AGENTS.md is an instructions file published in the GitHub repository analyticalmonk/explain-this (19 stars, last pushed 1mo ago), licensed MIT. It adds 680 tokens to every session, about $0.0034 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.