---
title: "Plandex AI Coding Agent for Large Projects"
description: "Plandex is an open-source terminal-based AI coding agent designed for large projects and complex tasks. It handles up to 2M tokens of context, uses a diff sandbox for safe changes, and supports multi-model workflows across Anthropic, OpenAI, and Google providers."
verification: "security_reviewed"
source: "https://github.com/plandex-ai/plandex"
category:
  - "Developer Tools"
framework:
  - "Custom Agents"
tool_ecosystem:
  github_repo: "plandex-ai/plandex"
  github_stars: 15183
---

# Plandex AI Coding Agent for Large Projects

Plandex is an open-source terminal-based AI coding agent designed for large projects and complex tasks. It handles up to 2M tokens of context, uses a diff sandbox for safe changes, and supports multi-model workflows across Anthropic, OpenAI, and Google providers.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/plandex-ai-coding-agent-large-projects/)