axiom-network-framework-ref

axiom-network-framework-ref is a skill for Claude Code, Codex from ComeOnOliver/skillshub. It costs 55 tokens per session (9,388 once invoked), scanned A, original, MIT.

A reference guide to Apple’s Network framework, including connections, listeners, encrypted protocols, message framing, discovery, and API migrations.

In plain words
What is it for?
Use it as a technical reference for TCP or UDP services, TLS, Wi‑Fi Aware discovery, and moving to newer iOS networking APIs.
Why use it?
It brings the relevant networking patterns and version differences together when building custom protocols on iOS.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it as a technical reference for TCP or UDP services, TLS, Wi‑Fi Aware discovery, and moving to newer iOS networking APIs.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/comeonoliver/skillshub/axiom-network-framework-ref
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.

Any agent
npx skills add ComeOnOliver/skillshub --skill axiom-network-framework-ref
Clone the repo
git clone --depth 1 https://github.com/ComeOnOliver/skillshub

Made for: Claude Code, Codex.

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 axiom-network-framework-ref

README.md
[![agentmods](https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-network-framework-ref.svg)](https://agentmods.dev/skills/comeonoliver/skillshub/axiom-network-framework-ref)
Your own site
<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-network-framework-ref"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-network-framework-ref.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,388 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00055 $0.09388
Opus 5 $0.00028 $0.04694
Sonnet 5 $0.00011 $0.01878
Haiku 4.5 $0.00006 $0.00939

Measured 4d ago against content hash e88294b1521a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

axiom-network-framework-ref 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 4d 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.

skills/CharlesWiltgen/Axiom/axiom-network-framework-ref/SKILL.md · 1,415 lines

How it starts

The opening of the file, as written. The whole thing — 1,415 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Network.framework API Reference

Overview

Network.framework is Apple's modern networking API that replaces Berkeley sockets, providing smart connection establishment, user-space networking, built-in TLS support, and seamless mobility. Introduced in iOS 12 (2018) with NWConnection and evolved in iOS 26 (2025) with NetworkConnection for structured concurrency.

Evolution timeline
  • 2018 (iOS 12) NWConnection with completion handlers, deprecates CFSocket/NSStream/SCNetworkReachability
  • 2019 (iOS 13) User-space networking (30% CPU reduction), TLS 1.3 default
  • 2025 (iOS 26) NetworkConnection with async/await, TLV framing built-in, Coder protocol, Wi-Fi Aware discovery
Key capabilities
  • Smart connection establishment Happy Eyeballs (IPv4/IPv6 racing), proxy evaluation (PAC), VPN detection, WiFi Assist fallback
  • User-space networking ~30% lower CPU usage vs sockets, memory-mapped regions, reduced context switches
  • Built-in security TLS 1.3 by default, DTLS for UDP, certificate pinning support
  • Mobility Automatic network transition handling (WiFi ↔ cellular), viability notifications, Multipath TCP
  • Performance ECN (Explicit Congestion Notification), service class marking, TCP Fast Open, UDP batching
When to use vs URLSession
  • URLSession HTTP, HTTPS, WebSocket, simple TCP/TLS streams → Use URLSession (optimized for these)
  • Network.framework UDP, custom protocols, low-level control, peer-to-peer, gaming, streaming → Use Network.framework
Related Skills
  • Use axiom-networking for anti-patterns, common patterns, pressure scenarios
  • Use axiom-networking-diag for systematic troubleshooting of connection failures

When to Use This Skill

Use this skill when:

  • Planning migration from BSD sockets, CFSocket, NSStream, or SCNetworkReachability
  • Understanding API differences between NWConnection (iOS 12-25) and NetworkConnection (iOS 26+)
  • Implementing all 12 WWDC 2025 examples (TLS connection, TLV framing, Coder protocol, NetworkListener, Wi-Fi Aware)
  • Choosing protocols (TCP, UDP, TLS, QUIC) for your use case
  • Peer-to-peer discovery setup with NetworkBrowser and Wi-Fi Aware
  • Optimizing performance with user-space networking, batching, pacing
  • Migrating from completion handlers to async/await (NWConnection → NetworkConnection)

Read the full file on GitHub · 1,415 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. 4d ago First seen · 1,415 lines · 55 tokens per session scan A e88294b1521a

Subscribe to this mod's changes

axiom-network-framework-ref is a skill published in the GitHub repository ComeOnOliver/skillshub (63 stars, last pushed 2mo ago), licensed MIT. It adds 55 tokens to every session and 9,388 once invoked, about $0.0003 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 2026-09-03.

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