Where your agents'
work lives.

HTML is becoming the new Markdown for agent work. Atelier is the local-first workshop for those artifacts — yours to make, link, and revisit.

Or drive it from the CLI →
Atelier welcome screen — Cinzel ATELIER wordmark on warm obsidian

Your files are yours

Real .html and .md files on disk. No custom syntax, no sidecars, no proprietary format. Open them in any browser. Host them on any static server. The vault outlives the tool.

Density Markdown can't reach

Tables, SVG diagrams, CSS layouts, interactive controls. When agents need to show you something — a flow, a comparison, a tuneable knob — give them a format that can actually express it.

Built for agents to drive

A stable CLI with schemaVersion: 1 JSON output. Agents inspect, edit, lint, and watch the vault from any shell. The contract is the schema.

What's inside

Three surfaces, one core. Anything that works in the desktop app works at the command line, with the same validation and the same errors.

Markdown reading mode with theme-aware typography

Reading mode

A clean reader for Markdown that follows your theme. Wikilinks resolve case-insensitively, backlinks and missing-link audits live in the inspector, and the link graph rebuilds on every save.

Graph view showing relationships between files

Graph view

See the link structure of an entire vault at once. Click a node to open the file. Useful when you've been generating artifacts for weeks and forgotten how they fit together.

Atelier workspace with editor and live preview side by side

Editor + preview

Monaco editor with syntax highlighting for HTML and Markdown. Live preview with click-to-navigate between vault files. Five view modes, inspector for backlinks and properties.

atelier CLI invocation showing JSON output

CLI for agents

atelier index | inspect | search | lint | create | update | watch — read and write the vault from any shell. NDJSON streaming for live watch. Path traversal blocked at the boundary.

What people make in here

Long-form specs. Implementation plans with embedded diagrams. PR explainers. Research reports. Custom editing surfaces with knobs and copy buttons. Anything Markdown couldn't quite carry.

Specs & planning Code review Reports & explainers Design prototypes Custom editors

For agents

Drive it from any shell.

A stable CLI with schemaVersion: 1 JSON output. Cross-platform — Windows, macOS, Linux. No handshake with the desktop app; both surfaces just operate on the same vault folder on disk.

npm install -g @codependentai/atelier Download Claude Code skill
A few of the commands
atelier index <vault>files + link graph
atelier search <vault> <query>find by phrase
atelier lint <vault>missing links + orphans
atelier create <vault> <path>new file from template
atelier watch <vault>NDJSON event stream

+ 12 more · run atelier --help for the full list