Agent surfaces
The chat-side components: what the agent shows while it is working, and what the user types into. These are plain props-in components — the Thread wires them to run state, but each one renders standalone. Styling comes from the same --sc-* tokens as everything else, so they follow the theme without any per-component overrides.
Thinking & reasoning
Three levels of the same idea. ThinkingState is a bare shimmering label for when there is nothing to show but the wait. Thinking streams the reasoning itself behind a soft fade, then folds into a “Thought for Ns” summary the user can reopen. The orb is the smallest of the three and sits inline anywhere.
Orb variants
Twenty-five motions across five families. The geometry is computed in JS and handed to CSS as custom properties, so the keyframes only interpolate between positions — that is what keeps this many distinct animations on one small stylesheet. Every orb draws in currentColor and stops entirely under prefers-reduced-motion.
A 3×3 grid running waves, diagonal sweeps and perimeter comets.
S1ThinkingS2ProcessingS3WorkingS4SearchingS5FinalizingA few blurred discs focusing, revolving, blooming and handing off.
B1ThinkingB2SearchingB3GeneratingB4SolvingB5RoutingEight dots on a circle: chasing, pulsing, staggering.
C1LoadingC2ListeningC3StreamingC4AnalyzingC5CompilingA projected wireframe globe — spun whole, or turned one ring at a time.
G1ProcessingG2SequencingG3UploadingG4SyncingG5IdlingEight dots migrating between circle, square, diamond and scatter.
M1ShapingM2ExpandingM3UnfoldingM4TransformingM5DispersingStreaming text
The caret is solid while tokens are landing and only blinks once the stream goes quiet — a caret that blinks mid-stream reads as a stall. In the Thread this is fed straight from the run's text parts.
Code block
Filename bar, copy button and a line-number gutter. The gutter is a real grid column rather than a ::before counter, so selecting the code by hand copies the code and not the numbers. This is what the code card renders.
export const sum = (a: number, b: number) => a + b; export const clamp = (n: number, min: number, max: number) => Math.min(Math.max(n, min), max);To-do list
The header carries the whole state — a dotted progress pie while work runs, a filled check when it is done — so the list can be collapsed without losing the thread. The counter rolls digit by digit and the active item shimmers.
- Scaffold the project structure
- Build the component registry
- Implement entitlement gating
- Wire up Stripe checkout
- Polish the landing page
Plan progress
The run's plan, with live status — run-scoped rather than per-turn, so it belongs outside the transcript in a rail or header. It ships no position and no width and fills whatever box the host gives it; what it owns is density, folding to a single bar whose segmented meter keeps carrying progress. Collapse it to see.
- Locate the auth middlewaresrc/server/auth/verify.ts
- Trace where the signing secret is loaded from3 call sites
- Pin the algorithm to HS256reject 'none' and weak ciphers
- Run the regression suite
- Open the pull request
Data table
The sc-table--grid modifier turns the standard table into a bordered grid card. Same markup, same tokens — one class.
| Model | Context | $/1M in |
|---|---|---|
claude-opus-5 | 200k | $3.00 |
gpt-5.6 | 400k | $5.00 |
llama-3.1 | 128k | $0.90 |
Agent input
A contenteditable rather than a textarea, because skill pills have to sit inline with the text and delete as one unit. Type / to open the skill palette, or use the + menu. “Improve” is a seam: pass onEnhance and it calls your endpoint, honours the abort signal, and lets the user revert to what they actually wrote.