// Live animated agent visualization — a constellation of "nodes" representing
// agent steps, with signal pulses traveling between them. Hypnotic, on-brand for "north".
const { useEffect, useRef, useState } = React;
function AgentVisual({ accent = "#6fe3ff" }) {
const canvasRef = useRef(null);
const rafRef = useRef(0);
const mouseRef = useRef({ x: 0, y: 0, active: false });
useEffect(() => {
const canvas = canvasRef.current;
const ctx = canvas.getContext("2d");
const dpr = Math.min(window.devicePixelRatio || 1, 2);
let W = 0, H = 0;
const resize = () => {
const r = canvas.getBoundingClientRect();
W = r.width; H = r.height;
canvas.width = W * dpr;
canvas.height = H * dpr;
ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
};
resize();
const ro = new ResizeObserver(resize);
ro.observe(canvas);
// Build a directed graph of agent "steps"
// Layout: roughly an arc, top-to-bottom flow
const nodes = [
{ id: "input", label: "Request", x: 0.5, y: 0.08, r: 4 },
{ id: "parse", label: "Understand", x: 0.25, y: 0.28, r: 5 },
{ id: "plan", label: "Plan", x: 0.75, y: 0.28, r: 5 },
{ id: "tool1", label: "Search", x: 0.12, y: 0.52, r: 3 },
{ id: "tool2", label: "Database", x: 0.35, y: 0.55, r: 3 },
{ id: "tool3", label: "API", x: 0.60, y: 0.55, r: 3 },
{ id: "tool4", label: "Compute", x: 0.85, y: 0.52, r: 3 },
{ id: "verify", label: "Verify", x: 0.35, y: 0.78, r: 4 },
{ id: "refine", label: "Refine", x: 0.65, y: 0.78, r: 4 },
{ id: "output", label: "Deliver", x: 0.5, y: 0.94, r: 6 },
];
const edges = [
["input","parse"],["input","plan"],
["parse","tool1"],["parse","tool2"],
["plan","tool3"],["plan","tool4"],
["tool1","verify"],["tool2","verify"],
["tool3","refine"],["tool4","refine"],
["verify","output"],["refine","output"],
["parse","plan"], // cross-link
["verify","refine"], // feedback loop
];
// Signals travel along edges
const signals = [];
const spawnSignal = () => {
const e = edges[(Math.random() * edges.length) | 0];
signals.push({
from: e[0], to: e[1],
t: 0,
speed: 0.006 + Math.random() * 0.012,
hue: Math.random() < 0.88 ? "accent" : "warm",
});
};
let spawnTimer = 0;
let activeNode = null;
let activeUntil = 0;
const getNode = (id) => nodes.find(n => n.id === id);
const toPx = (n) => ({ x: n.x * W, y: n.y * H });
const render = (tMs) => {
ctx.clearRect(0, 0, W, H);
// subtle radial vignette center
const grd = ctx.createRadialGradient(W/2, H/2, 0, W/2, H/2, Math.max(W,H)*0.7);
grd.addColorStop(0, "rgba(111, 227, 255, 0.04)");
grd.addColorStop(1, "rgba(0,0,0,0)");
ctx.fillStyle = grd;
ctx.fillRect(0, 0, W, H);
// edges (static, faint)
ctx.lineWidth = 1;
ctx.strokeStyle = "rgba(245, 242, 236, 0.06)";
for (const [a, b] of edges) {
const na = toPx(getNode(a)), nb = toPx(getNode(b));
ctx.beginPath();
ctx.moveTo(na.x, na.y);
// slight curve
const mx = (na.x + nb.x) / 2;
const my = (na.y + nb.y) / 2;
const dx = nb.x - na.x, dy = nb.y - na.y;
const nx = -dy, ny = dx;
const len = Math.hypot(nx, ny) || 1;
const curve = 14;
const cx = mx + (nx / len) * curve;
const cy = my + (ny / len) * curve;
ctx.quadraticCurveTo(cx, cy, nb.x, nb.y);
ctx.stroke();
}
// signals
spawnTimer -= 16;
if (spawnTimer <= 0) {
spawnSignal();
spawnTimer = 180 + Math.random() * 260;
}
for (let i = signals.length - 1; i >= 0; i--) {
const s = signals[i];
s.t += s.speed;
if (s.t >= 1) {
// arrival flash
activeNode = s.to;
activeUntil = tMs + 600;
signals.splice(i, 1);
continue;
}
const na = toPx(getNode(s.from));
const nb = toPx(getNode(s.to));
const mx = (na.x + nb.x) / 2;
const my = (na.y + nb.y) / 2;
const dx = nb.x - na.x, dy = nb.y - na.y;
const nx = -dy, ny = dx;
const len = Math.hypot(nx, ny) || 1;
const curve = 14;
const cx = mx + (nx / len) * curve;
const cy = my + (ny / len) * curve;
// quadratic bezier at t
const t = s.t;
const x = (1 - t) * (1 - t) * na.x + 2 * (1 - t) * t * cx + t * t * nb.x;
const y = (1 - t) * (1 - t) * na.y + 2 * (1 - t) * t * cy + t * t * nb.y;
// trail
const col = s.hue === "accent" ? accent : "#ff8a5b";
for (let k = 0; k < 6; k++) {
const tt = Math.max(0, t - k * 0.025);
const xx = (1 - tt) * (1 - tt) * na.x + 2 * (1 - tt) * tt * cx + tt * tt * nb.x;
const yy = (1 - tt) * (1 - tt) * na.y + 2 * (1 - tt) * tt * cy + tt * tt * nb.y;
ctx.beginPath();
ctx.fillStyle = col;
ctx.globalAlpha = (1 - k / 6) * 0.55;
ctx.arc(xx, yy, 2.2 - k * 0.25, 0, Math.PI * 2);
ctx.fill();
}
ctx.globalAlpha = 1;
// head
ctx.beginPath();
ctx.fillStyle = col;
ctx.shadowColor = col;
ctx.shadowBlur = 12;
ctx.arc(x, y, 2.6, 0, Math.PI * 2);
ctx.fill();
ctx.shadowBlur = 0;
}
// nodes
for (const n of nodes) {
const p = toPx(n);
const isActive = activeNode === n.id && tMs < activeUntil;
const pulse = isActive ? (1 - (activeUntil - tMs) / 600) : 0;
// outer ring on active
if (isActive) {
ctx.beginPath();
ctx.strokeStyle = accent;
ctx.globalAlpha = 1 - pulse;
ctx.lineWidth = 1;
ctx.arc(p.x, p.y, n.r + 4 + pulse * 18, 0, Math.PI * 2);
ctx.stroke();
ctx.globalAlpha = 1;
}
// core
ctx.beginPath();
ctx.fillStyle = isActive ? accent : "rgba(245, 242, 236, 0.85)";
ctx.arc(p.x, p.y, n.r, 0, Math.PI * 2);
ctx.fill();
// label
ctx.fillStyle = isActive ? accent : "rgba(168, 164, 156, 0.75)";
ctx.font = "500 10.5px Geist Mono, monospace";
ctx.textAlign = "center";
ctx.textBaseline = "top";
ctx.fillText(n.label.toUpperCase(), p.x, p.y + n.r + 6);
}
rafRef.current = requestAnimationFrame(render);
};
rafRef.current = requestAnimationFrame(render);
return () => {
cancelAnimationFrame(rafRef.current);
ro.disconnect();
};
}, [accent]);
return (
{/* corner ticks */}
● agent.live
n°01 / run
);
}
function Ticks() {
const corner = {
position: "absolute",
width: 12, height: 12,
borderColor: "var(--line-2)",
borderStyle: "solid",
};
return (
<>
);
}
Object.assign(window, { AgentVisual });