hyperskills: Instructions file for Codex

AGENTS.md

hyperskills AGENTS.md is an instructions file for Codex, OpenCode from hyperb1iss/hyperskills. It costs 2,947 tokens per session, scanned A, original, MIT.

A contributor guide for Hyperskills, a collection of skills for coding agents. It explains the repository layout and how to add a new skill, including creating its directory.

In plain words
What is it for?
Use it when adding or changing a skill, locating existing skill resources, or working with the plugin manifest and marketplace files.
Why use it?
It helps contributors put new skills in the expected locations and follow the project's design and contribution rules.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions .claude-plugin; mentions CLAUDE.md; mentions AGENTS.md.

This is hyperb1iss/hyperskills's own configuration. It tells Codex and OpenCode how to work on hyperskills 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 hyperskills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to hyperb1iss/hyperskills. 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/hyperb1iss/hyperskills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/hyperb1iss/hyperskills

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 2,947 This file is loaded in full into every session.
When invoked 2,947 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 $0.02947 $0.02947
Opus 5.5 $0.01179 $0.01179
Sonnet 5.5 $0.00589 $0.00589
Haiku 4.5 $0.00295 $0.00295

Measured today against content hash 114dc967fc17, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hyperskills 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 today.

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 · 237 lines

How it starts

The opening of the file, as written. The whole thing — 237 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hyperskills Contributor Guide

Read this before adding or changing a skill. Hyperskills supplies non-obvious procedural knowledge for capable agents. Model names and tool versions change; useful constraints, evidence, and operational failure modes should survive them.

Design Contract

A skill earns its place when it changes a decision the model would otherwise get wrong. Keep fragile operation ordering, meaningful decision criteria, and reusable checks. Remove generic tutorials, repeated host policy, unsupported performance claims, and historical anecdotes presented as universal rules.

User instructions take precedence over skill guidelines. Skills preserve the requested scope and existing authorization; they do not invent approval gates, silently expand external actions, or bypass host permissions. Use the current tool schema for dispatch, waits, and capabilities.

Treat the repository as shared space. Check status before edits, inspect existing diffs, and own explicit paths. Follow the user's commit and publishing policy. Do not modify installed user configuration as a side effect of editing a skill.

Repository Map

hyperskills/
├── .claude-plugin/
│   ├── marketplace.json
│   └── plugin.json
├── .github/
│   └── workflows/
│       ├── ci.yml
│       ├── prepare-release.yml
│       └── release.yml
├── .gitignore
├── .markdownlint.json
├── .prettierignore
├── .prettierrc
├── AGENTS.md
├── CHANGELOG.md
├── CLAUDE.md
├── LICENSE
├── Makefile
├── README.md
├── docs/
│   ├── library-review-2026-09.md
│   ├── library-review-2026-10.md
│   └── releases.md
├── evals/
│   └── README.md
├── release.json
├── scripts/
│   ├── open_release_pr.py
│   ├── release.py
│   ├── sync_metadata.py
│   └── validate_skills.py
├── skills/
│   ├── brainstorm/
│   │   ├── SKILL.md
│   │   └── references/
│   │       └── evidence.md
│   ├── codex-imagegen/
│   │   ├── SKILL.md
│   │   └── references/
│   │       └── evidence.md
│   ├── cross-model-review/
│   │   ├── SKILL.md
│   │   ├── references/
│   │   │   ├── cli-flags.md
│   │   │   ├── evidence.md
│   │   │   ├── failure-recovery.md
│   │   │   ├── observable-reviews.md
│   │   │   └── prompts.md
│   │   ├── scripts/
│   │   │   ├── review_status.py
│   │   │   └── run_claude_review.py
│   │   └── tests/
│   │       └── test_observable_review.py
│   ├── demo-reel/
│   │   ├── SKILL.md
│   │   ├── assets/
│   │   │   ├── card.html
│   │   │   └── timer.html
│   │   ├── references/
│   │   │   ├── agent-on-camera.md
│   │   │   ├── capture.md
│   │   │   ├── demo-world.md
│   │   │   ├── edit-render.md
│   │   │   ├── examples.md
│   │   │   ├── gotchas.md
│   │   │   ├── method.md
│   │   │   └── verify.md
│   │   └── scripts/
│   │       ├── agent-take.sh
│   │       ├── capture-web.mjs
│   │       ├── contact-sheet.sh
│   │       ├── doctor.sh
│   │       ├── selftest.sh
│   │       └── verify-mp4.sh
│   ├── deslop/
│   │   ├── SKILL.md
│   │   ├── references/
│   │   │   ├── craft-moves.md
│   │   │   ├── evidence.md
│   │   │   ├── fixtures/
│   │   │   │   ├── clean.md
│   │   │   │   ├── protected.md
│   │   │   │   └── slop.md
│   │   │   ├── pattern-catalog.md
│   │   │   └── surface-profiles.md
│   │   └── scripts/
│   │       ├── selftest.sh
│   │       └── slopscan.pl
│   ├── dream/
│   │   ├── SKILL.md
│   │   └── references/
│   │       ├── conversation-formats.md
│   │       └── extraction-guide.md
│   ├── git/
│   │   ├── SKILL.md
│   │   └── references/
│   │       └── evidence.md
│   ├── hyper-pr-review/
│   │   ├── SKILL.md
│   │   └── references/
│   │       ├── evidence.md
│   │       ├── lenses.md
│   │       ├── report-examples.md
│   │       └── thermonuclear.md
│   ├── implement/
│   │   ├── SKILL.md
│   │   └── references/
│   │       ├── benchmarks.md
│   │       ├── evidence.md
│   │       └── recovery.md
│   ├── orchestrate/
│   │   ├── SKILL.md
│   │   └── references/
│   │       ├── dispatch-briefs.md
│   │       └── evidence.md
│   ├── plan/
│   │   ├── SKILL.md
│   │   └── references/
│   │       └── evidence.md
│   ├── research/
│   │   ├── SKILL.md
│   │   └── references/
│   │       └── evidence.md
│   ├── super-good-pr/
│   │   ├── SKILL.md
│   │   └── references/
│   │       └── worked-examples.md
│   └── tui-design/
│       ├── SKILL.md
│       └── references/
│           ├── app-patterns.md
│           ├── evidence.md
│           └── visual-catalog.md
└── tests/
    ├── test_open_release_pr.py
    ├── test_release.py
    ├── test_sync_metadata.py
    └── test_validate_skills.py

Read the full file on GitHub · 237 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. today Changed · +16 lines · +192 tokens per session 114dc967fc17
  2. 6d ago Changed · +22 lines · +274 tokens per session 5c3b48845fd8
  3. 1mo ago Changed · +61 lines · +540 tokens per session 21def10fb04a
  4. 1mo ago Changed · -212 lines · -1,287 tokens per session 81d6371dfa17
  5. 1mo ago First seen · 350 lines · 3,228 tokens per session scan A dfa7d77e3767

Subscribe to this mod's changes

hyperskills AGENTS.md is an instructions file published in the GitHub repository hyperb1iss/hyperskills (36 stars, last pushed today), licensed MIT. It adds 2,947 tokens to every session, about $0.0118 per session on Opus 5.5. 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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