planager 0.9.0

Feature plans for LLM-assisted development. One command sets up your project so coding agents automatically create, follow, and maintain structured plans.

planager

Feature plans for LLM-assisted development.

One command sets up your project so coding agents automatically create, follow, and maintain structured feature plans across sessions.

Prerequisites

planager uses uv for installation. If you don't have it:

curl -LsSf https://astral.sh/uv/install.sh | sh

See the uv installation docs for other methods.

Install

cd your-project
uvx planager init

You'll see a menu to pick your agent:

  Welcome to planager! Which agent are you using?

    1. Claude Code  -  Anthropic's Claude Code agent
    2. pi.dev  -  The pi coding agent
    3. Codex  -  OpenAI's Codex agent

  Select [1-3] (default: 1):

You can also skip the menu by passing the target directly (uvx planager init claude, uvx planager init pi, uvx planager init codex), or run multiple targets in the same project - each one only creates the files its agent needs.

Options:

uvx planager init [target] [--path DIR] [--style markdown|html|sqlite]

Flag	Default	Description
target	(interactive)	Agent to set up: claude, pi, or codex
--path	.	Project root directory
--style	(existing style, else markdown)	Plan format: markdown, html, or sqlite

That's it. No runtime dependencies, no background processes.

What it does

After planager init, your project gets:

• .plans/ - directory where feature plans live (markdown or HTML files, or a single plans.db with --style sqlite).
• .plans/done/ - archive for completed plans. Excluded from /planager-status and session-start checks. (SQLite plans use an archived flag instead.)
• Agent-specific skill directory - slash commands for creating and checking plans.
• Instruction file - instructions that make the agent automatically discover and follow plans without you having to ask.

Target	Skills directory	Instruction file	Slash commands
claude	.claude/skills/	CLAUDE.md	/planager, /planager-status
pi	.pi/skills/	AGENTS.md	/skill:planager, /skill:planager-status
codex	.codex/skills/	AGENTS.md	$planager, $planager-status

Plan styles

By default, plans are markdown files. You can also use HTML or SQLite:

uvx planager init claude --style html
uvx planager init claude --style sqlite

HTML plans are standalone files with zero JavaScript dependencies — just HTML and CSS. They use <meta> tags for metadata and data-status attributes for step tracking, viewable directly in a browser.

SQLite plans live in a single .plans/plans.db that the agent queries and updates with the sqlite3 CLI (which must be installed). Completed plans are archived with a flag instead of a done/ directory. Trade-offs: plans become queryable and structurally consistent, but the database is a binary file — git diffs won't show what changed between sessions, and you can't read or edit plans without the sqlite3 CLI. Prefer markdown or HTML if human-readable, diffable plans matter to you.

Switching styles

To switch an existing project to a different style, pass --style to update (or re-run init):

uvx planager update --style html

This rewrites the instruction snippet and skill files for every installed agent and migrates your existing plans to the new format — markdown and HTML files are converted in place (including archived plans in .plans/done/), and switching to or from SQLite imports or exports the database. Any file that can't be parsed as a plan is left untouched and reported. Running init or update without --style always keeps the style you already have.

How it works

Plans are markdown files with frontmatter, phased steps, and checkboxes:

---
feature: auth
title: User Authentication
status: in-progress
created: 2026-04-18
updated: 2026-04-18
---

## Context

Implement email/password authentication with session management.

## Phase 1: Database schema

- [x] Create users table migration
- [x] Add password hashing utility
- [ ] Add session table migration

## Phase 2: API endpoints

- [ ] POST /login
- [ ] POST /register

## Notes

Using bcrypt for hashing. Decided against JWT - sessions are simpler for now.

The instruction file teaches the agent to:

1. Check for in-progress plans at the start of each session.
2. Create plans before starting non-trivial features.
3. Update plans as work progresses (check off steps, add notes).
4. Mark plans done when a feature is complete, and offer to archive them to .plans/done/.

No special tools or MCP servers - the agent reads and writes plain files. (The opt-in sqlite style is the one exception: it relies on the sqlite3 CLI.)

Slash commands

/planager (Claude) / /skill:planager (pi) / $planager (Codex)

Create a new feature plan or resume an existing one.

• With a description: /planager add dark mode support - explores the codebase, drafts a phased plan, asks for approval.
• Without: /planager - lists in-progress plans and offers to resume or create new.

/planager-status (Claude) / /skill:planager-status (pi) / $planager-status (Codex)

Show progress across all plans:

Feature          Status       Progress
───────────────  ───────────  ────────────────
auth             in-progress  Phase 2: 3/7
dark-mode        planning     Phase 1: 0/4
api-v2           done         5/5

Check status from the terminal

You don't need an agent session to see where things stand:

uvx planager status

This prints the same progress table directly, reading whatever is in .plans/ (markdown, HTML, or SQLite — it works for every style). Plans are ordered in-progress, blocked, planning, done; blocked plans also show their most recent note so you can see what they're waiting on. Pass --all to include archived plans, and --path DIR to point at another project. Handy for a quick check before starting a session, or from scripts and CI.

Contributing

This project uses just for dev workflows. Run just to see available recipes:

just ruff       # lint and format
just test       # run tests
just check      # lint, format, then test
just build      # clean dist/ and build
just publish    # clean, build, and publish
just docs       # open docs in the browser

Updating

When new planager versions ship updated skill files or instruction snippets, upgrade an existing project with:

uvx planager update

This detects which agents you've already set up (and the --style you chose), and refreshes their skill files and instruction snippets to the latest version. Pass --style markdown|html|sqlite to switch formats at the same time — see Switching styles.

Idempotent

Running uvx planager init again is safe. It updates skill files and the instruction snippet in place without duplicating anything, and keeps whatever style you already chose. Re-initializing with a different --style cleanly replaces the previous configuration and migrates existing plans.

License

MIT