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ECC: The agent harness performance optimization system. It is listed under Development & Code on AI Registry as a free tool.
The tools below are approved listings in the same category, ordered by how closely their tags match ECC. This is an automatic list. We have not written a researched verdict for ECC yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
10x - Up to 20x faster AI coding with multi-step Superpowers.
10x is a terminal based AI coding agent that reads a whole codebase to plan, generate and verify code changes. It runs in the shell rather than as an IDE plugin, with full file system access for reading, writing and editing files, glob and grep search, and the ability to run commands, scripts and build tools while show...
Unlimited FREE AI coding.
9router is a local AI gateway that sits between coding tools and model providers. Developers install it globally from npm, a dashboard opens automatically, and every connected CLI or IDE points at a single OpenAI compatible endpoint on localhost. From there 9router routes each request across more than 60 providers and ...
why use many token when few token do trick.
Caveman is a set of tools for making AI coding agents use fewer tokens. Its best known part is an open source skill: a single rule file that tells the agent to answer in compressed prose, dropping preamble while copying code, commands, file paths and exact error strings through unchanged. Alongside it sit a local proxy...
Engineering decisions engine that know when they're stale.
Haft is a decision engineering layer for AI coding agents. It addresses a common failure in AI assisted development: a model produces a plausible answer, the team accepts it, and months later nobody can say why the choice was made or whether it still holds. Haft adds structured reasoning skills to your coding agent and...
Structured skill framework for Claude Code.
MemStack is a skill framework and memory add on for Claude Code. It addresses the way Claude Code forgets a project between sessions by keeping verified facts about the project and injecting them at the start of each session, alongside a library of skills that load when they are relevant to the task. Every remembered ...
Local-first MCP gateway.
Toolport is a desktop app that sets up Model Context Protocol servers once and connects them to every AI agent on a machine through a single local gateway. It detects installed agents such as Claude Code, Claude Desktop, Cursor, Codex, VS Code, Gemini CLI, Zed, Cline and OpenCode, lists the servers already in their con...