artifact.css · kitchen sink

Every component in one page

A reference artifact that uses every major class in the library. Open this side-by-side with SKILL.md when learning the vocabulary.

Prompt Show me every component artifact.css ships with, on one page, so I can pick what I need.

Stat strip

Big numbers with a tiny uppercase label and an optional movement indicator.

PRs merged

+12 vs last week

Open incidents

+2 since Monday

98%

Uptime

SLO 99.5

216

Deploys

+18%

Key/value strip

Shorter alternative when values are labels, not big numbers.

Effort

~2 weeks

Surfaces touched

3 packages

New tables

Feature flag

task_comments_v1

Surfaces

Panel, callout, note variants, and the prompt-box.

Panel

White card with a subtle 1.5px border and 12px radius. The default container for grouping related content.

Callout

Soft oat-colored aside. Use once per section, not as wallpaper.

Note · success. Migration ran cleanly on all 14 production shards.

Note · warning. The new index doubles write amplification for two days. Re-evaluate after backfill.

Note · danger. Token rotation will invalidate all existing API keys at 02:00 UTC.

Note · info. The team uses Pacific time for standups even though half of us are in EU.

Inline atoms

Tags, pills, badges, avatars, dots - the small parts.

Tags & pills:

Badges:

default attention passing in review failing info

Avatars:

DK DK DK JL AM

Status dots:

healthy at risk down info

Buttons and inputs

Table

PR	Title	Author	+/−	Risk
#247	Threaded comments on task cards	danielle	+412 / −38	medium
#248	Drop unused gravatar fallback	jules	+8 / −94	low
#251	Migrate retention worker to v2 queue	amir	+1.2k / −208	high

Timeline

Week 1 · Mon–Tue

Schema and API contract

New comments and comment_reads tables, migrations, and the tRPC router stubs. No UI. Contract reviewed before anything else lands.

Week 1 · Wed–Fri

Thread component and composer

Static <CommentThread> rendered from fixtures. Optimistic insert on submit, one level of nesting only.

Week 2

Realtime, notifications, flag ramp

Wire up the realtime channel, drop in notification rows, and ramp task_comments_v1 to internal, then 10% → 100%.

Highlights list

Threaded comments shipped to internal. One-level nesting, optimistic insert, full mention-to-notification pipeline.
Retention worker queue cutover landed. Latency p99 down 38% on the hottest tenant.
Two new design system tokens. --shadow-lg and --r-lg in support of the new modal pattern.

Code block

packages/api/src/comments/router.ts

import { z } from 'zod';
import { router, procedure } from '../trpc';

// One-level nested threads. Parent is nullable for top-level.
export const commentRouter = router({
  create: procedure
    .input(z.object({ taskId: z.string(), body: z.string().min(1) }))
    .mutation(async ({ input, ctx }) => {
      return ctx.db.comment.create({ data: input });
    }),
});