optimization

ECC

JavaScript

100

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

vibe-aso

JavaScript

72

You vibe-coded the app — now vibe the ASO. A Claude Code skill: keyword research, 50-locale App Store metadata, localized screenshots, worldwide pricing, in-app localization.

ratel

TypeScript

77

Context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 and semantic retrieval. Progressive Disclosure. No vector DB.

harness-engineering

Python

75

🐎 Ryan Lopopolo’s anthology, field guide, and agent context bundle for harness engineering

better-harness

JavaScript

95

An open-source Harness Engineering platform for coding agents—define harnesses as code, run controlled experiments, inspect evidence, and compare outcomes.

CodexSaver

Python

54

Make Codex cheaper without making it dumber with DeepSeek.

geolook

Python

80

Open-source end-to-end GEO implementation: status analysis, diagnosis, strategy, tickets, execution, verification

MoonEP

Python

85

MoonEP: A Perfectly Balanced Expert Parallelism Library via Dynamic Redundant Experts

deltafin

Rust

72

Run full Kimi K3 on a single device. And an OpenAI-compatible API server for local chat and coding agents.

backpass

JavaScript

77

You don't write AGENTS.md. You train it with gradient descent.

token-diet

Shell

53

Always-on token-efficiency skill for coding agents (Claude Code, Codex, Cursor, Windsurf, Cline). ~31% lower bill on average, no loss of correctness.

world-model-optimizer

Python

82

An open source model gateway that provides one control plane across closed, open-source, local, and custom models.

querysplat

Python

72

repo for QuerySplat

benjamin-plus-skill

Shell

77

Benjamin-Plus: a measured token-efficiency skill for coding agents (−17.9% cost median, quality unchanged). Inject it, don't install it.

Token-Saver

Python

72

A local Claude Desktop extension to query large PDFs with 92–98% fewer tokens. Performs local hybrid search, cites exact page numbers, and keeps your documents private on your machine

optim-plans

Python

58

Human-in-the-loop planning plugin for Claude and Codex: turn ideas into reviewed Markdown plans, record decisions, enforce explicit execution gates, and provide tested controller primitives for safer agent workflows.

MangoDisk

Rust

85

Safety-first disk cleaner and disk space analyzer for macOS and Windows, with duplicate file finder, large file cleanup, app uninstaller, and startup manager