atelier

README

Dragon Atelier

Mission Control for AI-assisted development. A keyboard-driven terminal cockpit for everyone juggling multiple projects across Claude Code — written in Go with Bubble Tea.

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Why

If you run AI-assisted workflows all day, your projects, your Claude sessions, your memory store and your costs live in a dozen different places. Dragon Atelier pulls them into a single terminal dashboard you drive entirely from the keyboard — no mouse, no browser tabs, no context-switching.

It's the cockpit I use every day to jump between repos, watch live agent sessions, and keep an eye on what they cost.

Features

Everything below is built and working today — not a roadmap.

📚 Project registry ("Tomos")

Register every project once and launch it instantly. The list shows a live git status indicator per repo (clean / modified / untracked) and supports fuzzy / search.

Per-project actions:

• Launch any AI coding agent — Claude Code, Codex, Gemini and more, each in the project directory. The launcher list is configurable (see Configuration); uninstalled CLIs are marked (no instalado).
• Open in VS Code
• Open a PowerShell rooted at the project
• Copy the path to the clipboard
• Jump straight into the project's memory, history, or disk views

🛰️ Agent Monitor — the war room

A live tile grid of your active Claude Code sessions, refreshed by a filesystem watcher:

• Real-time USD cost telemetry per session, computed from token usage
• Sub-agent grouping — expand/collapse the agents a session spawned
• Zoom into any tile for detail, and step-by-step replay of a session's events with pause and variable playback speed

🧠 Engram memory browser

Browse and fuzzy-search the persistent AI memory (Engram) for the selected project, then open any observation in a scrollable detail pane. Reads the local Engram SQLite store directly.

🕓 Unified project history

A single timeline that merges git commits and SDD (Spec-Driven Development) archives for a project, newest first. Drill into any entry to see the full git show diff or the archived change document.

💾 Disk usage

A breakdown of what your AI tooling is costing you on disk: the Engram database, the total ~/.claude/projects footprint, and a per-project tally. Hit Enter on any row to open it in your file explorer.

🎵 Now playing & live audio visualizer

An ambient card on the welcome screen showing the track currently playing on your system — title, artist and source — read from the Windows System Media Transport Controls (the same source that powers the OS media flyout), so Spotify and browser audio are reported uniformly. Beside it, a real-time waveform driven by WASAPI loopback capture + FFT: the bars react to the actual sound coming out of your speakers, in dragon colours. Pure Go, no CGO.

🐉 Crafted, degradation-aware UI

Catppuccin Mocha palette with custom dragon-brand accents, and a graceful text-only fallback when the terminal is too small for the full art.

Keybindings

Screen	Keys
Welcome	Enter projects · a agent monitor · q quit
Projects	↑/↓ j/k navigate · / search · Enter actions · n new · d delete · r refresh git status · m monitor · esc back
Project actions	j/k navigate · Enter run · esc back
Agent monitor	j/k navigate · 1–9 jump · o/c expand/collapse sub-agents · Enter zoom · esc back
Agent zoom	r replay · esc back
Replay	space pause/resume · +/- speed · >/< step · esc back
Memory / History	j/k navigate · / filter · Enter open detail · esc back
Disk usage	j/k navigate · Enter open in explorer · esc back

Ctrl+C quits from anywhere.

Architecture

A deliberately simple, testable design:

• Single Model, value semantics. All application state lives in one struct; every Update branch returns a new Model (immutable updates), which keeps state transitions easy to reason about and to test.
• Screen state machine. A Screen enum drives Update and View; each screen has its own key handler and renderer.
• Dependency injection at the boundary. Registry, launchers, clipboard, the transcript scanner/watcher, the Engram client and git readers are all interfaces injected in main, with fakes in tests — the TUI never touches the OS directly.
• Nil-safe degradation. A missing Engram DB or absent git doesn't crash the app; the relevant screen surfaces a friendly message instead.

cmd/atelier/         entry point + dependency wiring
internal/
  tui/               Bubble Tea model, update, view, per-screen key handlers
  registry/          project store (the "Tomos")
  actions/           launchers: Claude Code, VS Code, PowerShell, clipboard
  transcripts/       Claude session parser, cost pricing, fs watcher, replay
  engram/            Engram SQLite client + observation types
  git/               status / log / show readers
  disk/              usage walker + explorer integration
  nowplaying/        SMTC now-playing provider (Windows) + parsing
  audio/             WASAPI loopback capture + FFT spectrum analysis
  config/            atelier + app config

Test coverage spans unit tests, mocked-dependency tests, and golden snapshot tests of the rendered TUI.

Configuration

Dragon Atelier reads optional settings from ~/.atelier/config.yaml. The file is entirely optional — every key falls back to a sensible default.

# How recent (minutes) a session's last activity must be to count as "active".
active_window_minutes: 15
# Fallback polling interval (ms) for the agent monitor.
polling_interval_ms: 500

# Agent launchers shown at the top of the per-project actions menu. Each entry is
# spawned, detached, in the project directory. Omit this key to keep the defaults
# (Claude Code, Codex, Gemini); set it to fully customise; set it to [] to clear.
launchers:
  - { label: "Claude Code", command: "claude" }
  - { label: "Codex",       command: "codex" }
  - { label: "Gemini",      command: "gemini" }
  - { label: "Aider",       command: "aider", args: ["--no-auto-commits"] }

command is resolved on your PATH; args (optional) are passed verbatim after it, so CLIs that need a subcommand or flag just work. Adding a new tool is a YAML edit — no rebuild.

Install

Download (recommended)

Grab the latest prebuilt binary from the Releases page — no Go toolchain required:

1. Download dragon_atelier-windows-amd64.exe (Windows). Linux/macOS builds are attached too.
2. Double-click it, or run it from a terminal.

That's it. On first launch the project registry is empty — press n to add your projects.

Prerequisites for the full experience: the launchers and agent monitor expect Claude Code installed and ~/.claude/projects present. Without it the app still runs; those panels just show empty. The Engram memory browser is optional too (nil-safe when ~/.engram is absent).

Build from source

Prerequisites: Go 1.25+ and (optionally) the Task runner.

git clone https://github.com/GastonZ/Atelier.git
cd Atelier
task build          # or: go build -o dragon_atelier ./cmd/atelier

Run

./dragon_atelier           # Linux / macOS
./dragon_atelier.exe       # Windows

dragon_atelier version     # print version and exit
dragon_atelier help        # usage

Terminals smaller than ~100×48 show a text-only fallback. Resize for the full dragon.

Status

Active personal project, used daily. The .goreleaser.yaml is provisional and will be validated before the first v0.1.0 tag.

License

MIT — Copyright 2026 Gaston Zappulla