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@wong2
wong2 / claude-code-tools.md
Last active January 20, 2026 08:20
Tools and system prompt of Claude Code

Task

Launch a new agent that has access to the following tools: Bash, Glob, Grep, LS, exit_plan_mode, Read, Edit, MultiEdit, Write, NotebookRead, NotebookEdit, WebFetch, TodoRead, TodoWrite, WebSearch. When you are searching for a keyword or file and are not confident that you will find the right match in the first few tries, use the Agent tool to perform the search for you.

When to use the Agent tool:

  • If you are searching for a keyword like "config" or "logger", or for questions like "which file does X?", the Agent tool is strongly recommended

When NOT to use the Agent tool:

  • If you want to read a specific file path, use the Read or Glob tool instead of the Agent tool, to find the match more quickly
  • If you are searching for a specific class definition like "class Foo", use the Glob tool instead, to find the match more quickly
  • If you are searching for code within a specific file or set of 2-3 files, use the Read tool instead of the Agent tool, to find the match more quickly
@Rafisto
Rafisto / pxe-boot.md
Last active July 7, 2024 17:28
pxe-boot

How to easily setup PXE boot for cluster provisioning

This guide will show you how to setup a PXE boot server to provision a cluster of machines. For the sake of this guide, we will be using system agnostic docker containers to simulate the DHCP and the PXE boot server.

Featured technologies:

PXE boot description

@spipm
spipm / pxe-boot.sh
Last active July 7, 2024 17:25
Create (UEFI/Secureboot) PXE boot server on interface
#!/bin/bash
# Run PXE boot server on interface
# Seems to work with UEFI and Secureboot
# Spip, 2023
#
# Most stuff from https://www.youtube.com/watch?v=E_OlsA1hF4k
#
# Check args
@lafentres
lafentres / all-the-way-downify.sh
Last active September 24, 2024 16:34
:*-all-the-way-down: Slack emoji creator, based off alisdair/intensify.sh
#!/bin/bash
# Credit to https://gist.github.com/alisdair/ffc7c884ee36ac132131f37e3803a1fe for the excellent original
# script that this one is based on. This script modifies the original to create the all-the-way-down effect.
# Generate a `:*-all-the-way-down:` Slack emoji, given a reasonable image
# input. I recommend grabbing an emoji from https://emojipedia.org/
set -euo pipefail
{
"type": "object",
"required": ["name", "description", "identity", "trigraphs"],
"description": "JSON schema for https://spellcaster.sh",
"properties": {
"name": {
"type": "string",
"description": "represents an intent, desired state, or outcome."
},
"description": {
@lafentres
lafentres / jumboify.sh
Last active May 20, 2023 01:51
Jumbo Slack emoji creator, based off alisdair/intensify.sh
#!/bin/bash
# Credit to https://gist.github.com/alisdair/ffc7c884ee36ac132131f37e3803a1fe for the excellent original
# script that this one is based on. This script modifies the original to create the jumbo.
# Generate a jumbo Slack emoji, given a reasonable image
# input. I recommend grabbing an emoji from https://emojipedia.org/
set -euo pipefail
@lafentres
lafentres / partyify.sh
Last active August 19, 2024 21:08
:*-party: Slack emoji creator, based off alisdair/intensify.sh
#!/bin/bash
# Credit to https://gist.github.com/alisdair/ffc7c884ee36ac132131f37e3803a1fe for the excellent original
# script that this one is based on. This script modifies the original to create the party effect.
# Generate a `:*-party:` Slack emoji, given a reasonable image
# input. I recommend grabbing an emoji from https://emojipedia.org/
set -euo pipefail
@shawwn
shawwn / since2010.md
Created May 11, 2021 09:46
"What happened after 2010?"

This was a response to a Hacker News comment asking me what I've been up to since 2010. I'm posting it here since HN rejects it with "that comment is too long." I suppose that's fair, since this ended up being something of an autobiography.

--

What happened after 2010?

@raysan5
raysan5 / custom_game_engines_small_study.md
Last active January 12, 2026 10:18
A small state-of-the-art study on custom engines

CUSTOM GAME ENGINES: A Small Study

a_plague_tale

WARNING: Article moved to separate repo to allow users contributions: https://github.com/raysan5/custom_game_engines

A couple of weeks ago I played (and finished) A Plague Tale, a game by Asobo Studio. I was really captivated by the game, not only by the beautiful graphics but also by the story and the locations in the game. I decided to investigate a bit about the game tech and I was surprised to see it was developed with a custom engine by a relatively small studio. I know there are some companies using custom engines but it's very difficult to find a detailed market study with that kind of information curated and updated. So this article.

Nowadays lots of companies choose engines like [Unreal](https:

OSRM North America route server on EC2

Overview

OSRM route server is an extremely useful tool for getting the driving distance/time through multiple locations. The route server requires data that has to be downloaded and processsed before it can be used to serve routes from.

Processing OSRM data for large region like North America can be a real challenge due to memory and disk size requirements. It's also really time consuming. If you cut and try from scratch, you will repeatedly run into some constraints and fail after hours of running.

The following are summary notes from trying this with eventual success.