nuntius CLAUDE.md

nuntius CLAUDE.md is an instructions file for Claude Code from ivRodriguezCA/nuntius. It costs 3,117 tokens per session, scanned A, original, MIT.

Project instructions for Nuntius, an experimental iOS security framework implementing X3DH and Double Ratchet with libsodium. They describe how to build, test, lint, and work with its related language ports.

In plain words
What is it for?
Use them when changing the Objective-C framework, keeping its Java, Kotlin, and Swift ports compatible, or running focused tests and checks.
Why use it?
They identify the formal specification and warn about the framework's unaudited, research-only status, reducing the risk of treating it as production-ready.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

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/ivrodriguezca/nuntius/claude-md
Clone the repo
git clone --depth 1 https://github.com/ivRodriguezCA/nuntius

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.

agentmods badge for nuntius CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ivrodriguezca/nuntius/claude-md.svg)](https://agentmods.dev/instructions/ivrodriguezca/nuntius/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/ivrodriguezca/nuntius/claude-md"><img src="https://agentmods.dev/badge/instructions/ivrodriguezca/nuntius/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,117 This file is loaded in full into every session.
When invoked 3,117 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 5.1 $0.03117 $0.03117
Opus 5 $0.01558 $0.01558
Sonnet 5 $0.00623 $0.00623
Haiku 4.5 $0.00312 $0.00312

Measured 6d ago against content hash e28068d3a3ce, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

nuntius 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 6d 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 · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 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.

nuntius is an iOS framework (Objective-C, MIT) implementing X3DH + Double Ratchet on libsodium. It is the reference implementation for the Java/Kotlin/Swift ports in sibling directories.

SPEC.md is the contract, and it is normative. This file is orientation; where the two disagree, SPEC.md wins and this file is the thing that is wrong. Every port is written against SPEC.md, not against this code, and all four must interoperate byte-for-byte.

The library is experimental, published for research and study, and not recommended for production environments. v4 is complete and unaudited — no external security review of the code or of the specification — and SPEC.md §17 enumerates open risks and deliberate non-goals that are stated rather than solved. That posture is not a reason to hold work to a lower standard; it is the reason the standard is what it is, and it constrains how the project describes itself. Do not write documentation, comments or commit messages that read as an endorsement for deployment. The README's Read this first section is the canonical statement; keep new prose consistent with it.

Protocol version

The tree implements v4 only. The v3 protocol was deleted, not deprecated — sources, tests, headers, and every pbxproj reference. See SPEC.md §14 for the thirteen confirmed defects that made v3 cryptographically broken, and §2 for what v4 changed.

There is no v3 → v4 migration and no dual-stack mode (§10.6, §17.9). A v4 receiver rejects a first byte that is not 0x04 with ERR_UNSUPPORTED_VERSION. Existing identities must be re-registered: the identity key type itself changed.

If you find a reference to IREncryptionService, IRTripleDHService, IRDoubleRatchetService, IRCurve25519KeyPair, IRRatchetHeader, IRAEADInfo, or IRConstants outside a comment explaining what v3 got wrong, it is a mistake. The banned-API lint fails the build on them.

Read the full file on GitHub · 165 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. 6d ago First seen · 165 lines · 3,117 tokens per session scan A e28068d3a3ce

Subscribe to this mod's changes

nuntius CLAUDE.md is an instructions file published in the GitHub repository ivRodriguezCA/nuntius (21 stars, last pushed 1mo ago), licensed MIT. It adds 3,117 tokens to every session, about $0.0156 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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