stevedomin

LLM Wiki

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

The core idea

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

stevedomin

import Swoosh.Email

upload_invoice = %Plug.Upload{
  path: "/tmp/plug/DEFfF014AaA01F",
  content_type: "",
  filename: "invoice-peter-may.pdf"
}

new()
|> to("peter@example.com")

stevedomin

import Swoosh.Email

new()
|> to("peter@example.com")
|> from({"Jarvis", "jarvis@example.com"})
|> subject("Invoice May")
|> text_body("Here is the invoice for your superhero services in May.")
|> attachment("/Users/jarvis/invoice-peter-may.pdf")

stevedomin

#
# pre ecto 2.0
#

# web/models/user.ex
defmodule User do
  schema "users" do
    field :name
    field :email
  end

stevedomin

defmodule MyBank.Client do
  defstruct client_id: nil, access_token: nil
  
  def request(client, method, path, params \\ %{}, body \\ nil, headers \\ []) do
    # prepare url, headers, etc.
    case HTTPoison.request(method, url, body, headers) do
      {:ok, %HTTPoison.Response{status_code: 200, body: body}} -> {:ok, body}
      # handle other cases ...
    end
  end

stevedomin

iex(1)> pid = spawn fn -> end
#PID<0.61.0>
iex(2)> Process.info(pid, :status)
nil
iex(3)> Process.info(pid, :status)
nil
iex(4)>

stevedomin

<%= form_for @changeset, @action, fn f -> %>
  <div>
    <%= label f, :name %>
    <%= text_input f, :name %>
  </div>

  <div>
    <%= submit "Submit" %>
  </div>
<% end %>

stevedomin

description "ex_playground"

setuid ex_playground
setgid ex_playground

start on runlevel [2345]
stop on shutdown

respawn
respawn limit 10 20

stevedomin

defmodule MyBlog.Repo.Migrations.CreatePost do
  use Ecto.Migration

  def change do
    create table(:posts, primary_key: false) do
      add :id, :uuid, primary_key: true
      add :body, :string
      add :word_count, :integer

      timestamps

stevedomin

alias Porcelain.Process
alias Porcelain.Result

defmodule Cmd do
  def run() do
    args = ["b"]
    opts = [
      in: "a\nb\nc\nb\nb\nd\nb\ne",
      out: {:send, self()},
      err: {:send, self()} # eksperimental -> This is the only thing that changed