Chris Martin trbngr

Complete Guide to Claude Code Augmentation: Skills, Agents, Commands & Utilities (2025)

Ultimate resource for extending Claude Code with custom skills, specialized agents, slash commands, and professional utilities

Last Updated: October 28, 2025 | Author: Alireza Rezvani | License: MIT

📋 Table of Contents

This code is extracted from one of my private projects as an example of how to implement encryption of PII in event streams using two keys: a master key for each "data subject" that is stored in Vault and never transported to the systems that process the PII, and a key unique to each event that is stored (itself encrypted) with the event.

To be clear, the key that is stored with the data is encrypted by another key that is not stored with the data. The idea is that each "data subject" has an encryption key that is stored in Vault (external). When you encrypt data, the library will:

create a new AES 256 encryption key

Commanded middleware for command enrichment

Usage

Add the EnrichCommand middleware to your command router:

defmodule MyApp.Router do
  use Commanded.Commands.Router

Functional Track talks from NDC Oslo 2017

Also, here is the list of all videos from NDC Oslo 2017:

	using System;
	using System.Collections.Generic;
	using HotChocolate;
	using HotChocolate.Execution;
	using HotChocolate.Execution.Instrumentation;
	using HotChocolate.Resolvers;
	using Microsoft.Extensions.Logging;

	namespace MyCompany.GraphQL.Execution.Instrumentation
	{

	provider "aws" {
	region = "${var.region}"
	}
	### VPC

	# Fetch AZs in the current region
	data "aws_availability_zones" "available" {}

	resource "aws_vpc" "datastore" {
	cidr_block = "172.17.0.0/16"

	// FP Lenses
	const lens = get => set => ({ get, set });
	const view = lens => obj => lens.get(obj);
	const set = lens => val => obj => lens.set(val)(obj);
	const over = lens => fn => obj => set(lens)(fn(view(lens)(obj)))(obj);
	const lensProp = key => lens(prop(key))(assoc(key));

	//
	// See https://github.com/louthy/language-ext
	//

	using System;
	using System.IO;
	using System.Linq;
	using System.Threading.Tasks;
	using LanguageExt;
	using static LanguageExt.Prelude;

	(*
	Example of domain-driven design for Checkers
	Rules from here: https://www.itsyourturn.com/t_helptopic2030.html

	A SERIES OF SCRATCH DESIGNS
	*)

	// As we go through the rules, and learn things, we create a series of designs

	module Version1 =