Introduction

Tack is a markdown-first project management tool. Your tasks live as plain markdown files on your machine, under your control, forever.

Why Tack?

Traditional project management tools keep your data in their cloud. You pay monthly fees, deal with their interfaces, and hope they don't shut down or change their pricing.

Tack is different:

• Local-first — Your tasks are markdown files in your repo
• Git-native — Version control your tasks like code
• AI-ready — Claude and other AI agents can read and edit tasks directly
• Forever yours — Plain text doesn't require a subscription

How it works

Tack stores tasks as markdown files with YAML frontmatter:

---
id: PROJ-42
status: in_progress
priority: high
assignee: alice
labels: [bug, backend]
due: 2026-02-20
---

Followed by a regular markdown body:

# Fix authentication timeout

Users are getting logged out after 5 minutes.

## Notes
- Checked the session config
- Might be related to [[PROJ-40]]

You can edit these files with any text editor, or use the tack CLI for a structured interface.

Next steps

• Installation — Get Tack on your machine
• Quick Start — Create your first project and tasks
• CLI Reference — Full command documentation