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Stephen S. Mitchell stephensmitchell

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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.

@dingzeyuli
dingzeyuli / check_github_repo_size
Created December 16, 2016 22:34
Check the size of a github repo before downloading
# http://webapps.stackexchange.com/questions/39587/view-estimated-size-of-github-repository-before-cloning
# tested on macOS
echo https://github.com/torvalds/linux.git | perl -ne 'print $1 if m!([^/]+/[^/]+?)(?:\.git)?$!' | xargs -I{} curl -s -k https://api.github.com/repos/'{}' | grep size
# output:
# "size": 1746294,
@AlexMAS
AlexMAS / ProcessAsyncHelper.cs
Last active August 30, 2025 20:40
The right way to run external process in .NET (async version)
using System;
using System.Diagnostics;
using System.Text;
using System.Threading.Tasks;
public static class ProcessAsyncHelper
{
public static async Task<ProcessResult> ExecuteShellCommand(string command, string arguments, int timeout)
{
var result = new ProcessResult();
@meklarian
meklarian / string-set-vs-set.cs
Created December 1, 2010 21:04
LINQPad snippet that declares two string arrays, spits out their mutually exclusive parts.
var set1 = new string[]{"a","b","c","d"};
var set2 = new string[]{"a","e","i","o","u"};
var q = set1.Except(set2);
Console.WriteLine(q.Count());
Console.WriteLine("");
foreach(string s in q)
{
Console.WriteLine(s);