The Daily Index — Thursday, April 17, 2025

Repositories, courses and useful tools

Resources & Tools

TLDR · GitHub repository

OPENAI CODEX CLI

Codex is a lightweight coding agent for the terminal. It was built for developers who live in the terminal and want ChatGPT-level reasoning plus the power to run code, manipulate files, and iterate, all under version control. Codex requires zero setup, runs network-disabled and directory-sandboxed, and is multimodal. It supports any model available with the Responses API.

github.com

TLDR · GitHub repository

12 FACTOR AGENTS - PRINCIPLES FOR BUILDING RELIABLE LLM APPLICATIONS

Even if large language models (LLMs) continue to get more powerful, there will still be core engineering techniques that will make LLM-powered software more reliable, scalable, and easier to maintain. This article discusses 12 principles for building LLM-powered software that is actually good enough to put in the hands of production customers. The fastest way for builders to create high-quality AI software is to take small, modular concepts from agent building and incorporate them into existing products. These concepts can be defined and applied by most skilled software engineers even if they don't have an AI background.

github.com

TLDR · GitHub repository

ACTORCORE

ActorCore enables developers to build stateful, AI agent, collaborative, and local-first applications and deploy to Rivet, Cloudflare, Bun, Node.js, and more.

github.com

TLDR AI · GitHub repository

DEEPMATH DATASET

103K examples of highly filtered and decontaminated math problems for reasoning model training.

github.com

TLDR AI · GitHub repository

PRIMA CPP

Prima CPP is an extension of llama.cpp that tries to enable mmaping of memory for large models to enable them to run on low RAM environments.

github.com

TLDR AI · GitHub repository

TILE LANGUAGE

Tile Language is a concise domain-specific language designed to streamline the development of high-performance GPU/CPU kernels (e.g., GEMM, Dequant GEMM, FlashAttention, and LinearAttention). By employing a Pythonic syntax with an underlying compiler infrastructure on top of TVM, it allows developers to focus on productivity without sacrificing the low-level optimizations necessary for state-of-the-art performance.

github.com

TLDR Web Dev · GitHub repository

PLANDEX

Plandex is an open-source, terminal-based AI coding agent designed for large, real-world projects with features like smart context management, configurable autonomy, and multi-provider model integration.

github.com

TLDR Web Dev · Tool

HERB

Herb is an HTML-aware Embedded Ruby parsing tool built on Prism, Ruby's official parser.

herb-tools.dev

TLDR InfoSec · GitHub repository

CONTENT

Security automation content in SCAP, Bash, Ansible, and other formats

github.com

TLDR InfoSec · GitHub repository

OLLVM-UNFLATTENER

ollvm-unflattener is a Python tool to deobfuscate control flow flattening applied by OLLVM.

github.com

TLDR Design · Tool

DEEP RESEARCH IN MINUTES

Sider Deep Research Agent mirrors human research by scanning over 100 sources, creating visual reports, highlighting key insights, and saving content to Wisebase, an AI knowledge base that grows with you.

links.tldrnewsletter.com

TLDR Design · Tool

TURN YOUR GOOGLE SHEETS INTO A WEBSITE

SpreadSimple is a powerful no-code website builder that lets you create feature-rich websites using just Google Sheets.

spreadsimple.com

TLDR Design · Tool

ALL-IN-ONE JAVASCRIPT ANIMATION ENGINE

Anime.js is a fast, multipurpose, lightweight JavaScript animation library with a simple yet powerful API. It works with CSS properties, SVG, DOM attributes, and JavaScript Objects.

animejs.com

TLDR Marketing · Tool

MAGICPOST

MagicPost is an AI LinkedIn post generator. It can turn URLs into LinkedIn posts, select post types for each use, and edit and optimize generated posts. It also has a scheduling tool for future posts, along with analytics to track engagement.