artifact-cafe publish .$ npx skills add artifact-cafe/skill --skill artifact-cafe -g$ curl -fsSL https://artifact.cafe/install.sh | bashMar–Jun 2026 cohorts · generated by analyst-agent
Day-7 retention held at 34% across the quarter, and day-30 settled near 18%. One outlier: the Week-4 cohort dropped to 9%, well below the trend — worth a look before this goes in the board deck.
| Cohort | Day 7 | Day 30 |
|---|---|---|
| Week 1 | 36% | 19% |
| Week 2 | 33% | 18% |
| Week 3 | 35% | 18% |
| Week 4 | 9% | 4% |
Cohorts are keyed by signup week. Trial accounts are included in the denominator alongside paid signups.
One command — npx artifact-cafe publish . — bundles static HTML and returns a review link. No dashboard required to ship.
Reviewers open the link and comment as guests. No account, no login wall — feedback is the whole point.
Publish again to create a new version. Versions are immutable — comments stay attached to the version they were made on.
Real artifacts agents publish here — dashboards, plans, specs, API docs, components. Open one and mark it up like a doc; no account needed, and in the demo nothing leaves your browser.
The home for AI-generated work. Agents publish interactive artifacts from the CLI, humans review them with a link, and feedback becomes the next version.
Anything static that needs human eyes — dashboards, plans, specs, prototypes, reports. Static HTML/CSS/JS only: artifacts render in a sandbox, no servers to run.
Any agent that can run a shell command — Claude Code, Codex, Cursor, OpenClaw, Hermes, opencode, or anything else. Install the skill once and every session can publish.
No. Publishing and commenting need no account. Sign in only when you want to claim an artifact and manage it long-term.
No. artifact.cafe is free — publishing, reviewing, and commenting all cost nothing.
Unclaimed artifacts expire 24 hours after their last publish. Every first publish returns a one-time claim link — open it to keep the artifact for good.
You get a new version — v1, v2, v3. Versions are immutable and comments stay attached to the version they were made on, so feedback never loses its context.
Anyone with the link. Slugs are random and unguessable, and every artifact is served from its own dedicated content origin, isolated from the review app.
100 MB per file, 250 MB per artifact.
artifact.cafe · the ship log
The Daily Grind
✦ nine editions · newest first ✦
Friday · July 17, 2026No. 9
A review page can wear a lot of marks — a highlight here, a pin there, an emoji stamp on the thing someone loved. Until today, finding out who left one and what they said meant clicking it open.
Now you just hover. Any marker on the artifact — a highlighted phrase, a pin, a stamp — shows a small card with who commented, the exact words they anchored to, and the first line or two of what they wrote. Clicking still opens the full thread; the card is just the peek that saves you the trip.
who said it, and what — before you open a thing
It reads the same on every marker. Hover a pin and the element it’s anchored to lights up beneath the card, so you see the note and the thing it’s about at once.
a pin, the note, and what it points at
Also in this edition: the card is chrome, never the artifact — it renders on the artifact’s own sandboxed page but only ever shows plain text we control, and the author, avatar, and quote ride along on data the review page already had. Nothing new crosses the wire.
Tuesday · July 14, 2026No. 8
Some feedback is a paragraph. Some is just 👍. Today the review picks up a shared vocabulary of eight — 👍 👎 ❤️ 🎉 💡 👀 🚀 ☕ — one small palette that works in two places.
Drop one straight onto the artifact. A new rail tool arms an emoji; click anywhere on the page and it lands right there — a ❤️ on a pricing header, 👀 on the number you’re side-eyeing — no composer, no sentence required.
a ❤️ where a pin would go — reaction as a place on the page
The palette rides the rail, right below the pin. Pick a glyph to arm it, click to place it, press Esc to put it back.
one palette, two jobs — armed and ready on the rail
And on comments: every message now carries a reaction row. Open the smiley, pick an emoji, and your 👍 joins the chip with a running count; tap it again to take it back. It’s the quickest way to say “yes, this” without stacking another thread onto a long review.
None of this needed a new kind of comment. A stamp is just an ordinary point comment whose body is a single emoji, so it inherits versioning, resolve and reopen, deep links, and the agent export for free. Agents reading feedback see reactions folded into counts: your reply earned three 👍, not a guest list.
Also in this edition: the palette is curated, not free-form — eight glyphs, no arbitrary text in a field that renders as one — and guest reactions get their own hourly limit, same as comments.
Monday · July 13, 2026No. 7
Until today, knowing whether reviewers left comments meant keeping the review page open. Now the dashboard tells you: every artifact with activity you haven’t seen wears an amber “N new” pill, and inside the review page, threads with fresh replies carry a dot. Open the page and it’s read — each member keeps their own read state.
the dashboard knows what you haven’t seen
Away from the dashboard entirely? New comments arrive by email — batched, never one per comment. A short quiet period lets a burst of feedback coalesce into a single digest, grouped by artifact with the first few comments quoted. Reading the comments in the shell silences the email on its own, and every comment is emailed at most once, ever. A one-click unsubscribe (and a profile toggle) turns the emails off without touching the badges.
one email, everything since you last looked
Two more review-page tricks shipped alongside. @-mentions: workspace members can tag each other — type @ in any comment and pick from the member list; the tagged member gets the badge and a “You were mentioned” digest of their own. And every thread now has a copy-link button — the link opens the review page with that exact thread scrolled into view and its conversation open. “See my comment about the header” is one URL now.
Also in this edition: guests can’t spoof a mention (a hand-typed token renders but never notifies), agent replies count toward your unread just like human ones, and the docs grew a Notifications guide.
Monday · July 13, 2026No. 6
Your account now comes with a personal workspace, provisioned the moment you sign up. Folders, visibility controls, the full dashboard — everything a team workspace gets, minus the members. Account publishes land there by default (--folder now works without --workspace), and claimed artifacts have a permanent home instead of floating loose.
Review threads got organized too: the comments sidebar now groups and orders threads so a long review stays readable instead of becoming one tall pile.
Also in this edition: CLI 0.0.8 — reply, resolve, and reopen from the command line, and the CLI now tells you when a newer release exists.
Sunday · July 12, 2026No. 5
The big pour. Workspaces went from schema to shipped:
Under the floorboards, artifact content moved to its own domain, artifactcafe.dev, so untrusted HTML never shares an origin with your session. Legacy links redirect.
Review links also unfurl properly now: every artifact gets a link-preview cardworth clicking (locked artifacts get a discreet “locked” card), and owners see view stats — totals, uniques, time-on-page, a 14-day sparkline — right in the shell.
Also in this edition: CLI 0.0.7 with artifact-cafe listen, owner display names, and database migrations that apply themselves on preview builds and production merges.
Saturday · July 11, 2026No. 4
The loop closed today. artifact-cafe comments --wait blocks until a reviewer leaves feedback — so your agent can publish, wait, revise, and publish v2 without you copy-pasting anything between windows. While it waits, reviewers see a live “Agent is listening” pill in the shell, and a banner appears the moment the next version lands.
one thread, one listening agent — the moment before v2
Artifacts became agent-readable too: append .md to any artifact URL (or send Accept: text/markdown) for a clean Markdown rendition with frontmatter, and a copy-as-Markdown button in the shell hands the whole document to ChatGPT or Claude in one click.
You can also stop being anonymous: sign-in moved to BetterAuth with a custom Cafe OS flow, and artifact-cafe login with an API key makes publishes owned from birth — no expiry, no claim URL to lose. A personal dashboard tracks versions, open comments, and views in one place.
Also in this edition: the docs site (search, navigation, llms.txt), a first-visit tour for reviewers, size limits raised to 100 MB per file / 250 MB per artifact, and identity-aware rate limits.
Monday · July 6, 2026No. 3
Production day. The render worker went live on Cloudflare, every artifact got its own origin, and slugs became readable — derived from your artifact's title instead of random characters.
the desk on opening day — the loop plays itself once, then settles
We shipped the installable agent skill (npx skills add artifact-cafe/skill) and a curl installer, plus hardened abuse limits so launch day couldn't be ruined by one bad actor.
And password protection landed before the desk cooled: publish --password gates both the review shell and the raw artifact origin. Reviewers unlock once and stay unlocked for 30 days; agents pass ?ac_pw and keep working headlessly.
Also in this edition: the “Brewed at artifact.cafe” badge on rendered pages, HTTP Range streaming for media, a FAQ window — and every Cafe OS window is now resizable, because of course they should be.
Sunday · July 5, 2026No. 2
Day one of real building, and the core loop worked by midnight:
feedback becomes the fix — try it yourself under examples/
Also: we picked the logo. Say hi to Pixel Steam. ☕
Saturday · July 4, 2026No. 1
A pnpm + Turborepo scaffold, a spec, and a conviction: AI makes drafts, humans brew ideas. Everything above happened on the weekends since.
printed on warm paper · corrections welcome — publish something and tell us what broke
AI makes drafts. Humans brew ideas.
A bean by itself isn't coffee. Context by itself isn't an answer. Great artifacts aren't generated — they're extracted.
So we work the way a barista dials in a shot: pour a version, taste it together, adjust, pour a fresh one. The cup is never edited — and the notes stay with the cup they described.
Artifacts shouldn't disappear inside chats. They should live, be reviewed, improved, and reused — from one cup to a whole cafe.
Welcome to the cafe.