hyperclaude CLAUDE.md

hyperclaude CLAUDE.md is an instructions file for coding agents from zeikar/hyperclaude. It costs 4,771 tokens per session, scanned A, original, MIT.

Repository instructions for Hyperclaude, a Claude Code plugin where Claude writes code and Codex reviews it through a small Node script.

In plain words
What is it for?
Use them when developing Hyperclaude, running its tests, installing it locally, or working with its Claude-to-Codex bridge.
Why use it?
They give coding agents the project’s rules, required tools, commands, and limits, reducing mistakes when changing or testing the repository.

Instructions file

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/zeikar/hyperclaude/claude-md
Clone the repo
git clone --depth 1 https://github.com/zeikar/hyperclaude

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 hyperclaude CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/zeikar/hyperclaude/claude-md.svg)](https://agentmods.dev/instructions/zeikar/hyperclaude/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/zeikar/hyperclaude/claude-md"><img src="https://agentmods.dev/badge/instructions/zeikar/hyperclaude/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 4,771 This file is loaded in full into every session.
When invoked 4,771 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 $0.04771 $0.04771
Opus 5 $0.02386 $0.02386
Sonnet 5 $0.00954 $0.00954
Haiku 4.5 $0.00477 $0.00477

Measured 3d ago against content hash 53ecb8500dc1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

hyperclaude CLAUDE.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 3d 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.

CLAUDE.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

What this repo is

hyperclaude is a Claude Code plugin that pairs Claude (builder) with Codex (critic) via a thin Node script. Claude implements, Codex reviews — that role split is the design invariant. Codex is always invoked with read-only sandbox; never let it author patches.

The plugin is meant to be installed into Claude Code (/plugin install hyperclaude); when you're editing this repo, you're editing the plugin source itself.

Commands

Prerequisites: Node 18+, codex-cli >= 0.130.0 on PATH, git. No npm install step — stdlib only.

node --test tests/*.mjs                   # unit tests (shared fixtures live in tests/helpers/,
                                          # outside the glob). NOTE: `node --test tests/` (dir
                                          # form) does NOT work — it interprets the path as a
                                          # test name and fails.
node --test tests/codex-args.test.mjs --test-name-pattern "<regex>"
                                          # single test by name
bash scripts/test/smoke.sh                # acceptance smoke: dry-runs, manifest, hook, codex probes
node scripts/codex-bridge.mjs <mode> --dry-run [flags]
                                          # exercise the bridge without spawning codex

Both test commands must pass before tagging a release. Zero npm dependencies — do not introduce any.

Local dev install (dogfooding)

To exercise skill/agent edits live inside Claude Code, symlink the repo into the plugin cache. Use the version from .claude-plugin/plugin.json as the leaf:

version=$(node -e 'console.log(require("./.claude-plugin/plugin.json").version)')
ln -s "$(pwd)" ~/.claude/plugins/cache/hyperclaude/hyperclaude/"$version"

Restart Claude Code (or /plugin reload if available) to pick up edits.

The bridge

scripts/codex-bridge.mjs is the only Codex-spawning code in the plugin. Hook scripts under hooks/ are also executable but pure orchestration — they never spawn codex. The bridge is a CLI entry that owns mode dispatch; leaf modules in scripts/codex/ (args, paths, resume, templates, frontmatter, slug, git, codex, failure) are pure-ish helpers re-exported from the entry file for test access.

Read the full file on GitHub · 133 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. 3d ago First seen · 133 lines · 4,771 tokens per session scan A 53ecb8500dc1

Subscribe to this mod's changes

hyperclaude CLAUDE.md is an instructions file published in the GitHub repository zeikar/hyperclaude (3 stars, last pushed 16d ago), licensed MIT. It adds 4,771 tokens to every session, about $0.0239 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 2026-08-31.

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