Stop That Shit: Keeps AI coding assistants on task by stopping unrequested extras like unused checksums and out-of-scope edits.

What it does

Stop That Shit is an add-on for AI coding agents such as Codex, Claude Code, OpenCode, Hermes Agent CLI and Pi. Its makers say these agents often do extra work nobody asked for, like adding unused checksums (a code that checks a file hasn't changed), rewriting unrelated code, editing files during a read-only review, or re-checking work that is already done.

It has two parts. A "Skill" is a set of written rules that guides the agent's judgement. A "Guard" checks the agent's actions before they happen and can block them. For example, it can stop file changes in review mode, ask before adding new software dependencies, or stop writes to files outside a list you set.

You start a task with a short instruction such as "review" or "change" and can add limits like which files may be edited. An optional extra skill called STSS rewrites text to cut hedging and filler while keeping important conditions.

Who it's for

Programmers who use AI coding agents and want them to stick to what was asked without extra, unrequested changes.

Can I use it without coding?

With some setup. You install it as a plugin for your coding agent using a few commands, and Node.js 18 or newer is needed. New to this? Start here.

Can I run it?

Computer: An ordinary computer is fine

Try it

Make sure Node.js 18 or newer is installed on your computer.
Install the plugin for the coding agent you use, following the matching section of the install guide.
Restart the agent, then start a message with the review or change instruction to set the task's limits.

Official download page

Before you download

Plain-AyI is an independent guide: we link to each project's official pages, but we don't host, review or endorse the software, and we can't accept responsibility for how it works on your device. Please download and install at your own discretion.

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
Plain-AyI is an independent guide and doesn't host or review the software it lists. Please check each project's official page before installing.
License (MIT): Very permissive: free to use, change and share, including for business.
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