/* global React */ const { useState: useStateD, useEffect: useEffectD, useRef: useRefD, useMemo: useMemoD } = React; // ============================================================= // DataFlow — animated SVG visualisation of one turn through // the full pipeline + background promotion. // // Motion is rAF-driven: particles follow the actual bezier curves // of their edges, with easing and spawn/land scaling. Active edges // draw a moving "comet head" along their path via CSS dashoffset. // ============================================================= const NODE = { user: { x: 140, y: 80, w: 130, h: 56, label: 'USER', sub: '"Where do I live?"' }, retriever: { x: 430, y: 80, w: 200, h: 56, label: 'Retriever', sub: '7 stages + optimizer' }, responder: { x: 720, y: 80, w: 150, h: 56, label: 'Responder', sub: 'caller LLM' }, reply: { x: 920, y: 80, w: 130, h: 56, label: 'REPLY', sub: '"Cambridge"' }, stm: { x: 140, y: 260, w: 200, h: 88, label: 'STM', sub: 'raw turns · 4 096 tok', cls: 'stm' }, mtm: { x: 430, y: 260, w: 200, h: 88, label: 'MTM', sub: 'summary blocks', cls: 'mtm' }, ltm: { x: 740, y: 260, w: 240, h: 88, label: 'LTM', sub: 'facts · invalidated_at · valid_from', cls: 'ltm' }, promoter: { x: 430, y: 440, w: 220, h: 56, label: 'Promoter', sub: 'summarise · extract · supersede' }, }; // ---------- maths: bezier path + easing ---------- function computePath(fromId, toId) { const a = NODE[fromId]; const b = NODE[toId]; const dx = b.x - a.x; const p0 = { x: a.x, y: a.y }; const p2 = { x: b.x, y: b.y }; // Control point biased away from straight line for a subtle curve. const p1 = { x: (a.x + b.x) / 2, y: (a.y + b.y) / 2 - Math.abs(dx) * 0.06 - 18, }; return { p0, p1, p2 }; } function bezier(t, p0, p1, p2) { const u = 1 - t; return { x: u * u * p0.x + 2 * u * t * p1.x + t * t * p2.x, y: u * u * p0.y + 2 * u * t * p1.y + t * t * p2.y, }; } function bezierD({ p0, p1, p2 }) { return `M ${p0.x} ${p0.y} Q ${p1.x} ${p1.y} ${p2.x} ${p2.y}`; } function clamp01(t) { return t < 0 ? 0 : t > 1 ? 1 : t; } // Smooth s-curve — gentle out, gentle in. Pro motion language. function easeInOutCubic(t) { return t < 0.5 ? 4 * t * t * t : 1 - Math.pow(-2 * t + 2, 3) / 2; } // Tiny overshoot on landing — gives the dot weight. function easeOutBack(t) { const c1 = 1.70158, c3 = c1 + 1; return 1 + c3 * Math.pow(t - 1, 3) + c1 * Math.pow(t - 1, 2); } // ---------- phase script ---------- const PHASES = [ { label: '01 · STM append (user)', note: 'session._append_to_stm(user_message) — foreground, retried', edges: [['user', 'stm']], particles: [{ from: 'user', to: 'stm', color: 'var(--stm)' }], highlight: ['user', 'stm'], band: 'fg', counters: [{ x: NODE.stm.x + 60, y: NODE.stm.y - 30, text: '+1 turn', cls: 'stm-color' }], }, { label: '02a · LTM hybrid + graph expand', note: 'dense ⊕ sparse ⊕ RRF, k1=50 → 1-hop neighbours, graph_expand_n=10', edges: [['ltm', 'retriever']], particles: [ { from: 'ltm', to: 'retriever', color: 'var(--ltm)' }, { from: 'ltm', to: 'retriever', color: 'var(--ltm)', delay: 180, size: 3 }, { from: 'ltm', to: 'retriever', color: 'var(--ltm)', delay: 340, size: 3 }, { from: 'ltm', to: 'retriever', color: 'var(--ltm)', delay: 500, size: 2 }, ], highlight: ['ltm', 'retriever'], band: 'fg', counters: [{ x: NODE.ltm.x - 80, y: NODE.ltm.y - 30, text: 'k1 = 50 → top 10', cls: 'ltm-color' }], }, { label: '02b · MTM recent + STM tail', note: 'budget.mtm_reserved worth of summaries · stm_turns = 6 verbatim', edges: [['mtm', 'retriever'], ['stm', 'retriever']], particles: [ { from: 'mtm', to: 'retriever', color: 'var(--mtm)' }, { from: 'mtm', to: 'retriever', color: 'var(--mtm)', delay: 220, size: 3 }, { from: 'stm', to: 'retriever', color: 'var(--stm)', delay: 120 }, { from: 'stm', to: 'retriever', color: 'var(--stm)', delay: 360, size: 3 }, ], highlight: ['mtm', 'stm', 'retriever'], band: 'fg', counters: [ { x: NODE.mtm.x + 60, y: NODE.mtm.y - 30, text: 'top 5', cls: 'mtm-color' }, { x: NODE.stm.x + 60, y: NODE.stm.y - 30, text: '6 turns', cls: 'stm-color' }, ], }, { label: '02c · Composite scoring + BGE rerank', note: '0.45·rel + 0.25·imp + 0.20·rec + 0.10·conf × layer_boost[tier]', edges: [], particles: [], // no travel — show internal "thinking" pulse instead pulseNode: 'retriever', highlight: ['retriever'], band: 'fg', counters: [{ x: NODE.retriever.x + 80, y: NODE.retriever.y - 30, text: 'rerank → 10', cls: '' }], }, { label: '03 · Responder (your LLM)', note: 'caller-injected. ContextBundle → reply string', edges: [['retriever', 'responder']], particles: [{ from: 'retriever', to: 'responder', color: 'var(--accent)', size: 5 }], highlight: ['retriever', 'responder'], band: 'fg', }, { label: '04 · Reply emitted + STM append (assistant)', note: 'process_turn returns here. Foreground path done.', edges: [['responder', 'reply'], ['responder', 'stm']], particles: [ { from: 'responder', to: 'reply', color: 'var(--accent)' }, { from: 'responder', to: 'stm', color: 'var(--stm)', delay: 180 }, ], highlight: ['responder', 'reply', 'stm'], band: 'fg', }, { label: '05 · TriggerManager.after_turn (queued)', note: 'new_entity or block_accumulation ≥ 20 → schedule promotion', edges: [['stm', 'promoter']], particles: [{ from: 'stm', to: 'promoter', color: 'var(--warn)' }], highlight: ['stm', 'promoter'], band: 'bg', counters: [{ x: NODE.promoter.x + 90, y: NODE.promoter.y - 30, text: 'block_threshold ≥ 20', cls: 'bg-color' }], }, { label: '06 · Promoter — summarise', note: 'LLM summarises STM chunk into an MTM SummaryBlock', edges: [['promoter', 'mtm']], particles: [{ from: 'promoter', to: 'mtm', color: 'var(--mtm)' }], highlight: ['promoter', 'mtm'], band: 'bg', counters: [{ x: NODE.mtm.x + 60, y: NODE.mtm.y - 30, text: '+1 block', cls: 'mtm-color' }], }, { label: '07 · Promoter — extract facts + supersede', note: 'atomic facts → LTM; stamp invalidated_at on contradicted older rows', edges: [['promoter', 'ltm']], particles: [ { from: 'promoter', to: 'ltm', color: 'var(--ltm)' }, { from: 'promoter', to: 'ltm', color: 'var(--ltm)', delay: 180, size: 3 }, { from: 'promoter', to: 'ltm', color: 'var(--ltm)', delay: 340, size: 3 }, ], highlight: ['promoter', 'ltm'], band: 'bg', showSupersede: true, counters: [{ x: NODE.ltm.x - 70, y: NODE.ltm.y - 30, text: '+3 facts · 1 invalidated', cls: 'ltm-color' }], }, ]; const PHASE_DURATION = 2300; // ms each phase holds const TRAVEL_DUR = 1250; // particle travel duration in ms const SPAWN_FRAC = 0.10; // 0–0.10 of travel = spawn-in scale const LAND_FRAC = 0.82; // 0.82–1.0 = land/dissolve scale // All edges that exist in the graph (drawn faint when inactive). const STATIC_EDGES = [ ['user', 'retriever'], ['retriever', 'responder'], ['responder', 'reply'], ['responder', 'stm'], ['stm', 'retriever'], ['mtm', 'retriever'], ['ltm', 'retriever'], ['stm', 'promoter'], ['promoter', 'mtm'], ['promoter', 'ltm'], ]; // ============================================================= // WorldState — derived from current phase + completed-cycles // counter. Lets the diagram show actual *accumulation* across // loops: STM filling and dumping, MTM blocks stacking, LTM // facts gridding up with supersession greying. // ============================================================= function getWorldState(phase, cycle) { // STM oscillates within each cycle: fills as turns append, // drops on promotion (phase 7+). let stmFill; if (phase === 0) stmFill = 0.42; else if (phase < 5) stmFill = 0.58 + phase * 0.03; else if (phase === 5) stmFill = 0.78; else if (phase === 6) stmFill = 0.82; else stmFill = 0.34; // post-promotion // Add tiny long-run growth so STM also "learns" it lives in a long session stmFill = Math.min(0.95, stmFill + Math.min(0.1, cycle * 0.012)); const mtmBlocks = Math.min(cycle, 8); const ltmFacts = Math.min(cycle * 3, 24); const invalidatedFacts = Math.min(Math.floor(cycle / 2), 6); return { stmFill, mtmBlocks, ltmFacts, invalidatedFacts }; } function TierIndicator({ tier, world }) { const n = NODE[tier]; if (!n) return null; const padX = 12; const innerW = n.w - padX * 2; const innerY = n.h - 22; // above bottom edge if (tier === 'stm') { return ( tokens {Math.round(world.stmFill * 4096).toLocaleString()} / 4096 ); } if (tier === 'mtm') { const visible = Math.min(world.mtmBlocks, 5); return ( blocks {world.mtmBlocks} {Array.from({ length: visible }).map((_, i) => ( ))} ); } if (tier === 'ltm') { const total = Math.min(world.ltmFacts, 24); const cols = 12; const sq = 5; const gap = 2; return ( facts {world.ltmFacts} {world.invalidatedFacts > 0 && ( · {world.invalidatedFacts} invalidated )} {Array.from({ length: total }).map((_, i) => { const col = i % cols; const row = Math.floor(i / cols); const isSuperseded = i < world.invalidatedFacts; return ( ); })} ); } return null; } // ============================================================= // AmbientField — a layer of slowly drifting dots that keeps the // canvas feeling alive between phase transitions. Self-contained // rAF so it doesn't trigger DataFlow re-renders. // ============================================================= const AMBIENT_COUNT = 8; function AmbientField() { const groupRef = useRefD(null); const dotsRef = useRefD([]); useEffectD(() => { // Seed dots with random initial positions, velocities and phases. dotsRef.current = Array.from({ length: AMBIENT_COUNT }, () => ({ x: Math.random() * 1040, y: Math.random() * 540, vx: (Math.random() - 0.5) * 0.18, vy: (Math.random() - 0.5) * 0.18, phase: Math.random() * Math.PI * 2, })); let raf; const tick = () => { const els = groupRef.current?.children; if (!els) { raf = requestAnimationFrame(tick); return; } const t = performance.now() / 1000; for (let i = 0; i < dotsRef.current.length; i++) { const d = dotsRef.current[i]; d.x += d.vx; d.y += d.vy; if (d.x < 0) d.x = 1040; if (d.x > 1040) d.x = 0; if (d.y < 0) d.y = 540; if (d.y > 540) d.y = 0; // soft breathing opacity const op = 0.05 + 0.10 * (0.5 + 0.5 * Math.sin(t * 0.55 + d.phase)); const el = els[i]; el.setAttribute('cx', d.x); el.setAttribute('cy', d.y); el.setAttribute('opacity', op); } raf = requestAnimationFrame(tick); }; raf = requestAnimationFrame(tick); return () => cancelAnimationFrame(raf); }, []); const colorFor = (h) => h === 'stm' ? 'var(--stm)' : h === 'mtm' ? 'var(--mtm)' : h === 'ltm' ? 'var(--ltm)' : 'var(--accent)'; return ( {Array.from({ length: AMBIENT_COUNT }, (_, i) => ( ))} ); } // ============================================================= // Particle — rAF-driven, follows the bezier curve of its edge. // ============================================================= function Particle({ from, to, color, delay = 0, size = 5 }) { const groupRef = useRefD(null); const path = useMemoD(() => computePath(from, to), [from, to]); useEffectD(() => { const start = performance.now() + delay; let raf; const tick = (now) => { const t = clamp01((now - start) / TRAVEL_DUR); const tMotion = easeInOutCubic(t); const pos = bezier(tMotion, path.p0, path.p1, path.p2); // Spawn → land scale curve. Overshoots a hair on land for "weight". let scale; if (t < SPAWN_FRAC) { scale = easeOutBack(t / SPAWN_FRAC) * 1.05; } else if (t > LAND_FRAC) { const k = (t - LAND_FRAC) / (1 - LAND_FRAC); scale = (1 - k) * 1.05; } else { scale = 1.05; } const opacity = t < SPAWN_FRAC ? t / SPAWN_FRAC : (t > LAND_FRAC ? (1 - (t - LAND_FRAC) / (1 - LAND_FRAC)) : 1); if (groupRef.current) { groupRef.current.setAttribute( 'transform', `translate(${pos.x} ${pos.y}) scale(${scale})`, ); groupRef.current.setAttribute('opacity', opacity); } if (t >= 1) { if (groupRef.current) { groupRef.current.setAttribute('opacity', '0'); groupRef.current.setAttribute( 'transform', `translate(${path.p2.x} ${path.p2.y}) scale(0)`, ); } return; } raf = requestAnimationFrame(tick); }; // Two-frame pre-roll so the initial transform is committed before motion. raf = requestAnimationFrame(() => { raf = requestAnimationFrame(tick); }); return () => cancelAnimationFrame(raf); }, []); return ( ); } // ============================================================= // Node — with optional breathing idle and a small active pin. // ============================================================= function Node({ id, active, dim, pulsing, world }) { const n = NODE[id]; const cx = n.x; const cy = n.y; const fillCls = n.cls ? `df-node df-${n.cls}` + (active ? ' active' : '') + (dim ? ' dim' : '') : 'df-node' + (active ? ' active' : '') + (dim ? ' dim' : ''); const pulseColor = n.cls === 'stm' ? 'var(--stm)' : n.cls === 'mtm' ? 'var(--mtm)' : n.cls === 'ltm' ? 'var(--ltm)' : 'var(--accent)'; return ( {active && ( )} {pulsing && ( )} {n.label} {n.sub} {world && n.cls && } ); } // ============================================================= // Edge — faint static guide + "comet" highlight when active. // Cross-fades the highlight in/out via an opacity transition. // ============================================================= function Edge({ from, to, active, band }) { const path = useMemoD(() => computePath(from, to), [from, to]); const d = bezierD(path); return ( {/* faint static line */} {/* active highlight — always rendered, opacity-faded for smoothness */} ); } // ============================================================= // DataFlow — composition. // ============================================================= function DataFlow() { const prefersReduced = typeof window !== 'undefined' && window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches; const [phase, setPhase] = useStateD(0); const [playing, setPlaying] = useStateD(!prefersReduced); const [cycle, setCycle] = useStateD(0); const prevPhaseRef = useRefD(0); useEffectD(() => { if (!playing) return; const t = setTimeout(() => setPhase((p) => (p + 1) % PHASES.length), PHASE_DURATION); return () => clearTimeout(t); }, [phase, playing]); // Detect a full loop wrap (PHASES.length-1 -> 0) and bump cycle. useEffectD(() => { if (prevPhaseRef.current === PHASES.length - 1 && phase === 0) { setCycle((c) => c + 1); } prevPhaseRef.current = phase; }, [phase]); const current = PHASES[phase]; const activeEdges = new Set(current.edges.map(([a, b]) => `${a}-${b}`)); const highlightSet = new Set(current.highlight); const allNodes = ['user', 'retriever', 'responder', 'reply', 'stm', 'mtm', 'ltm', 'promoter']; const world = getWorldState(phase, cycle); return (
phase {String(phase + 1).padStart(2, '0')} / {String(PHASES.length).padStart(2, '0')} {current.band === 'fg' ? '● foreground' : '● background queue'} cycle {String(cycle + 1).padStart(2, '0')}
{/* Letter-stagger fade-in. key={phase} re-mounts so the animation re-fires. */} {current.label.split('').map((ch, i) => ( {ch === ' ' ? '\u00a0' : ch} ))}
{current.note}
{/* radial vignette mask — focuses attention on active band */} {/* Ambient vignette that swaps when band changes */} FOREGROUND · process_turn() BACKGROUND · BackgroundQueue {/* Ambient drifting dots so the canvas never sits still */} {/* Edges */} {STATIC_EDGES.map(([a, b]) => ( ))} {/* Moving flow sits behind solid nodes. */} {current.particles.map((p, i) => ( ))} {/* Nodes */} {allNodes.map((id) => ( ))} {/* Counters stay above the solid boxes. */} {current.counters && current.counters.map((c, i) => ( {c.text} ))} {/* Supersession illustration on phase 07 */} {current.showSupersede && ( a1 · location · Boston invalidated_at = 2026-05-24 f3 · location · Cambridge (NULL) )}
{PHASES.map((p, i) => ( ))}
); } window.DataFlow = DataFlow;