En

Agented

A Stateful Text Editor Designed for AI Agents

Install & Use

Copy this prompt and send it to your AI assistant (Claude / Cursor / TRAE / Codex / WorkBuddy etc.) to auto-install:

Help me install this AI Skill: Agented.
It is used for: A Stateful Text Editor Designed for AI Agents
Full Skill content: https://321skill.com/skills/agented-x-3/raw/index.md
Read that page and install it.

The prompt includes a link to the full Skill content. You can also view the full content.

This Skill addresses the lack of persistent history and concurrency control when AI coding agents edit multiple files. In real-world development, LLMs need to modify code incrementally, but standard editors cannot record the context of each change, leading to conflicts or lost modifications. Agented solves this by persisting the workspace in SQLite, returning a state_token for each write operation to ensure state consistency.

Usage is straightforward: open a file with ae open <file>, then use commands like ae s and ae i for replace, insert, and other operations. Pass the --expect parameter with each write. All edit versions are stored in an undo tree, allowing you to jump or branch at any time, with support for transactional multi-file modifications.

It is ideal for AI agent scenarios involving frequent code changes, multi-step refactoring, or collaboration, especially in development workflows that already rely on history tracking and concurrency safety. When teams integrate AI coding assistants, this tool can serve as the underlying file editing engine, ensuring every modification is traceable.

It is recommended to use this tool uniformly for multi-step code editing by AI agents, avoiding direct overwrites with cat/echo. Note that it primarily supports text files, not binary files, and requires pre-installation of the ae binary (via Homebrew).

Key Features

Unlike standard editors (e.g., vim/nano), Agented is designed specifically for LLMs. Each read returns a `state_token`, and writes are validated via `--expect`, automatically detecting conflicts and rejecting stale writes to guarantee concurrency safety.

Limitations

Only supports text files, not binary files; relies on SQLite for state storage; requires installation of the `ae` binary (via Homebrew); no native Windows support.

FAQ

What is a state_token? Must it be used every time?

A state_token is a hash of the file's current state. Passing it via `--expect` during a write detects concurrency conflicts. In default mode, writes succeed without it but generate a warning; strict mode requires it.

How do I view edit history?

Use `ae log <file>` to view commit history, `ae branch` to view branches, and `ae undo` to revert to a previous version. Branch navigation is supported.

Installation guide for AI assistants

If your AI coding assistant (Claude Code, Cursor, TRAE etc.) can see this page, send it this message to auto-install:

Visit https://321skill.com/skills/agented-x-3/raw/index.md to read the original Skill definition (Markdown format) for Agented, and install it according to the instructions.