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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.

xiaolai

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

xiaolai

#!/bin/bash

if [ "$1" = "-h" -o "$1" = "--help" -o -z "$1" ]; then cat <<EOF
appify v3.0.1 for Mac OS X - http://mths.be/appify
Creates the simplest possible Mac app from a shell script.

Appify takes a shell script as its first argument:

    `basename "$0"` my-script.sh

xiaolai

#!/usr/bin/env python
# encoding: utf-8
"""
letters-to-100.py
"""

import string

letter_values = dict((l, i) for i, l in enumerate(string.lowercase, start=1))
english_dict = open('/usr/share/dict/words', 'rU')

xiaolai

=begin 
Find pi by the Monte-Carlo method.

area of a circle = pi r^2
area of a square = (2r)^2 = 4 r^2

Perform random uniform sampling between -1 and 1.
The proportion of points in the unit circle is:

p = (pi r^2) / (4r^2)

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"""

This code computes pi. It's not the first python
pi computation tool that I've written.  This program
is a good test of the mpi4py library, which is
essentially a python wrapper to the C MPI library.

To execute this code:

mpiexec -np NUMBER_OF_PROCESSES -f NODES_FILE python mpipypi.py

xiaolai

''' listing 6: pi_mp.py

Multiprocessing based code to estimate the value of PI
using monte carlo sampling 
Ref: http://math.fullerton.edu/mathews/n2003/montecarlopimod.html
Uses workers: 
http://docs.python.org/library/multiprocessing.html#module-multiprocessing.pool
'''

import random

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#!/usr/bin/env python

def pi():
  # Wallis' product
  numerator = 2.0
  denominator = 1.0
  while True:
    yield numerator/denominator
    if numerator < denominator:
      numerator += 2

xiaolai

import functools
import random
import math
from concurrent import futures


def map_d(c):
    return math.hypot(random.random(), random.random())

xiaolai

// Original by C0D312
// I added the single quote and curly brace to the regex.
// http://www.sublimetext.com/forum/viewtopic.php?f=3&t=5174
//
// Add the following to your user keybindings:

[
  { "keys": ["tab"], "command": "move", "args": {"by": "characters", "forward": true}, "context":
    [
      { "key": "following_text", "operator": "regex_contains", "operand": "^[)}'\"\\]]", "match_all": true },