What is void-box CLAUDE.md?

Repository instructions for Claude Code, an AI coding assistant, covering Claude-specific guidance in a CLAUDE.md file. They refer to broader project rules in AGENTS.md.

Use them when making non-trivial changes in the project, especially changes involving Rust code or its Linux and macOS virtual-machine backends.

They give the assistant project conventions for planning changes, navigating Rust code, and keeping Linux and macOS behavior aligned.

How the-void-ia/void-box configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to the-void-ia/void-box. 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/the-void-ia/void-box/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/the-void-ia/void-box

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/the-void-ia/void-box/claude-md/github.svg)](https://agentmods.dev/instructions/the-void-ia/void-box/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/the-void-ia/void-box/claude-md"><img src="https://agentmods.dev/badge/instructions/the-void-ia/void-box/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/the-void-ia/void-box/claude-md"><img src="https://agentmods.dev/badge/instructions/the-void-ia/void-box/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 162 This file is loaded in full into every session.

When invoked 162 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.

Model	Per session	Once invoked
Fable 5.1	$0.00162	$0.00162
Opus 5.5	$0.00065	$0.00065
Sonnet 5.5	$0.00032	$0.00032
Haiku 4.5	$0.00016	$0.00016

Measured 2mo ago against content hash 89b1ff03ab70, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

void-box 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 2mo 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 · 13 lines

What it actually says

CLAUDE.md

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

For general development guidelines, architecture, testing, platform differences, and known issues, see @AGENTS.md.

Claude-specific guidance

Before implementing non-trivial changes, propose a plan and explain the tradeoffs.
Prefer LSP operations (goToDefinition, findReferences, hover) over Grep/Glob for Rust code navigation; fall back to Grep/Glob only for comments, config files, and non-Rust files.
Always consider Linux (KVM) and macOS (VZ) platform parity — consult the platform table in @AGENTS.md before touching backend or guest code.
Be terse: skip end-of-turn summaries.

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.

2mo ago First seen · 13 lines · 162 tokens per session scan A 89b1ff03ab70

Subscribe to this mod's changes

void-box CLAUDE.md is an instructions file published in the GitHub repository the-void-ia/void-box (89 stars, last pushed 4d ago), licensed Apache-2.0. It adds 162 tokens to every session, about $0.0006 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.

Rust agent-isolation kvm observability opentelemetry seccomp-bpf

void-box CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
void-box CLAUDE.mdthe-void-ia/void-box	Instructions file	89	4d ago	Apache-2.0	A	162	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

void-box: Instructions file for Claude Code