feat(graph): dynamic force-directed Team-memory graph + honest metrics (on main's pipeline)

Lands the dynamic Team-memory redesign on top of main's continual-learning
pipeline. main already computes loop/activity in the API but its GraphView never
rendered them and kept a static-column graph; this swaps in the dynamic graph and
surfaces the rails, reusing main's richer PodLearningLoop / PodGraphActivity types.

Frontend (new frontend/src/components/graph/*, composed into GraphView.tsx):
- forceSim.ts: dependency-free force layout (charge, link springs, centroid
  recenter, 2-pass collision, bounds clamp, alpha anneal) — no new deps/lockfile churn.
- GraphCanvas.tsx: SVG render from the sim — draggable + pinnable nodes, curved
  edges, weight-sized shapes, fade-in, animated learned_from dash, risk-path
  lighting / rest dimmed, label collision-avoidance.
- MetricsRail / LearningLoop / ActivityStream / SelectedNodePanel / encoding.ts:
  the mock's rails + stream + detail panel in light shadcn. LearningLoop consumes
  main's PodLearningLoop (steps + activeStep); ActivityStream consumes
  PodGraphActivity (title + detail). SelectedNodePanel adds a Flow section that
  narrates the path through a clicked node (flowNarrative); default copy is
  mode-aware. Edge legend rounded out (editing/touches).
- GraphView polls every 5s and diffs (positions preserved), + ws /api/events nudge.
  Stale selection (node gone across a poll) dropped so the canvas can't dim entirely.

Backend (surgical — main's materializer + buildLoop kept):
- live.ts: headline metric cards derived from the FINAL de-noised graph (Open risk
  paths = distinct collision files; Learned owners = distinct owner engineers)
  instead of raw collision-signature / accepted-outcome counts that inflate with
  test churn (50 -> 4 risk files, 16 -> 1 owner on live). buildLoop untouched.
- demo.ts: metrics realigned to the demo graph (3 owners / 1 risk path / 100%).

Verified: lint + -r typecheck + -r build pass; Playwright confirmed the dynamic
graph (ticks on load, draggable), the loop rail (5 steps, ADAPT active) and
activity stream rendering main's shapes, honest metrics (3/1/100%), and the flow
narrative per node kind — zero page errors.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/src/graph/demo.ts

@@ -11,21 +11,23 @@ export function createDemoPodGraph(podId: string): PodGraph {
   return {
     podId,
     generatedAt: new Date().toISOString(),
+    // Kept consistent with the graph below (3 owner engineers, 1 collision file,
+    // 1 of 1 interventions accepted) so the numbers never contradict the picture.
     metrics: [
       {
         label: 'Learned owners',
-        value: '5',
+        value: '3',
-        detail: 'Ownership edges retained from accepted interventions.',
+        detail: 'Distinct owners retained from accepted interventions.',
       },
       {
         label: 'Open risk paths',
-        value: '2',
+        value: '1',
-        detail: 'auth.ts and the memory API have converging editors.',
+        detail: 'File with two or more converging editors.',
       },
       {
         label: 'Accept rate',
-        value: '86%',
+        value: '100%',
-        detail: 'Interventions accepted this session (+14%).',
+        detail: 'Interventions accepted vs total this session.',
       },
     ],
     loop: {

backend/src/graph/live.ts

@@ -502,6 +502,7 @@ export async function materializePodGraph(podId: string): Promise<PodGraph | nul
 
   const acceptedReal = outcomeDocs.filter((o) => o.accepted && o.wasRealCollision).length;
   const totalOutcomes = outcomeDocs.length;
+  // Raw distinct collision signatures — kept for the learning-loop throughput view.
   const riskPaths = new Set(
     collisionDocs.map(
       (col) =>
@@ -509,21 +510,38 @@ export async function materializePodGraph(podId: string): Promise<PodGraph | nul
         `${normalizeFile(col.file)}#${col.symbol ?? ''}`,
     ),
   ).size;
+
+  // Headline metric cards are derived from the FINAL de-noised graph so they match
+  // what's drawn. Counting raw collision signatures / accepted-outcome rows inflates
+  // them with test churn (e.g. 50 "risk paths" for 4 files), which reads as fake.
+  const finalEdges = [...b.edges.values()];
+  const riskFiles = new Set<string>();
+  for (const e of finalEdges) {
+    if (e.kind === 'touches' && b.nodes.get(e.source)?.kind === 'file') riskFiles.add(e.source);
+  }
+  const openRiskPaths = riskFiles.size || nodes.filter((n) => n.kind === 'collision').length;
+  const ownerSet = new Set<string>();
+  for (const e of finalEdges) {
+    if (e.kind === 'learned_from') ownerSet.add(e.target);
+    if (e.kind === 'owns') ownerSet.add(e.source);
+  }
+  const learnedOwners = [...ownerSet].filter((id) => b.nodes.get(id)?.kind === 'engineer').length;
+
   const metrics: PodGraphMetric[] = [
     {
       label: 'Learned owners',
-      value: String(acceptedReal),
+      value: String(learnedOwners),
-      detail: 'Ownership retained from accepted interventions.',
+      detail: 'Distinct owners retained from accepted interventions.',
     },
     {
       label: 'Open risk paths',
-      value: String(riskPaths),
+      value: String(openRiskPaths),
-      detail: 'Files with two or more converging editors.',
+      detail: `${openRiskPaths === 1 ? 'File' : 'Files'} with two or more converging editors.`,
     },
     {
       label: 'Accept rate',
       value: totalOutcomes ? `${Math.round((acceptedReal / totalOutcomes) * 100)}%` : '—',
-      detail: 'Interventions accepted this session.',
+      detail: 'Interventions accepted vs total this session.',
     },
   ];
   const learnedEdges = [...b.edges.values()].filter((e) => e.kind === 'learned_from').length;

frontend/src/components/GraphView.tsx

@@ -1,111 +1,36 @@
-import { useEffect, useMemo, useState, type CSSProperties } from 'react';
+import { useEffect, useMemo, useState } from 'react';
-import type { PodGraph, PodGraphNode, PodGraphEdge, PodGraphNodeKind } from '@podman/shared';
+import type { PodGraph } from '@podman/shared';
-import { fetchPodGraph } from '../lib/graph.js';
+import { fetchPodGraph, backendEventsUrl } from '../lib/graph.js';
 import { Button } from '@/components/ui/button';
-import { Badge } from '@/components/ui/badge';
+import { ToggleGroup, ToggleGroupItem } from '@/components/ui/toggle-group';
+import { GraphCanvas } from './graph/GraphCanvas.js';
+import { MetricsRail } from './graph/MetricsRail.js';
+import { LearningLoop } from './graph/LearningLoop.js';
+import { ActivityStream } from './graph/ActivityStream.js';
+import { SelectedNodePanel } from './graph/SelectedNodePanel.js';
+import { highlightFor, flowNarrative, NODE_LEGEND, EDGE_LEGEND, type Mode } from './graph/encoding.js';
 
-type Mode = 'risk' | 'learn' | 'all';
+const POLL_MS = 5000;
 
-// Fixed, light-readable hues for the node/edge encoding (kept stable across
+// Note: pm-enter must NOT use animation-fill-mode (both/forwards) — a held final
-// light/dark so kinds stay distinguishable; the chrome uses shadcn tokens).
+// keyframe (opacity:1) would override the .pm-dim cascade and defeat dimming.
-const BLUE = '#2563eb';
+const GRAPH_CSS = `
-const SLATE = '#475569';
+  .pm-node{cursor:grab;transition:opacity .25s ease}
-const SLATE_EDGE = '#94a3b8';
+  .pm-node:active{cursor:grabbing}
-const SLATE_FAINT = '#cbd5e1';
+  .pm-edge{transition:opacity .25s ease}
-const AMBER = '#d97706';
+  .pm-lbl{fill:var(--foreground);font-size:11px;font-weight:500;pointer-events:none;
-const RED = '#dc2626';
+    paint-order:stroke;stroke:var(--card);stroke-width:3.5px;stroke-linejoin:round}
-const VIOLET = '#7c3aed';
+  .pm-dim{opacity:.14}
-
+  .pm-enter{animation:pm-fade .45s ease}
-const KIND_COLOR: Record<PodGraphNodeKind, string> = {
+  .pm-dash{animation:pm-flow 1s linear infinite}
-  engineer: BLUE,
+  .pm-pulse{animation:pm-pulse 1.7s ease-in-out infinite}
-  file: SLATE,
+  @keyframes pm-fade{from{opacity:0}to{opacity:1}}
-  feature: AMBER,
+  @keyframes pm-flow{to{stroke-dashoffset:-26}}
-  collision: RED,
+  @keyframes pm-pulse{0%,100%{opacity:.45}50%{opacity:1}}
-  intervention: VIOLET,
+  @media (prefers-reduced-motion:reduce){
-};
+    .pm-enter,.pm-dash,.pm-pulse{animation:none}
-
-const EDGE: Record<PodGraphEdge['kind'], { c: string; w: number; dash?: boolean }> = {
-  owns: { c: BLUE, w: 2.6 },
-  editing: { c: SLATE_EDGE, w: 2 },
-  touches: { c: SLATE_FAINT, w: 1.6 },
-  collides: { c: RED, w: 3.2 },
-  warns: { c: AMBER, w: 3.2 },
-  learned_from: { c: VIOLET, w: 2.4, dash: true },
-};
-
-function NodeShape({ node }: { node: PodGraphNode }) {
-  const c = KIND_COLOR[node.kind];
-  const { x, y } = node;
-  switch (node.kind) {
-    case 'engineer':
-      return <rect x={x - 15} y={y - 15} width={30} height={30} rx={4} fill={c} />;
-    case 'file':
-      return (
-        <rect
-          x={x - 15}
-          y={y - 15}
-          width={30}
-          height={30}
-          rx={4}
-          fill="none"
-          stroke={c}
-          strokeWidth={2.6}
-        />
-      );
-    case 'feature':
-      return <circle cx={x} cy={y} r={17} fill={c} />;
-    case 'collision':
-      return <polygon points={`${x},${y - 18} ${x + 17},${y + 13} ${x - 17},${y + 13}`} fill={c} />;
-    case 'intervention':
-      return (
-        <polygon points={`${x},${y - 18} ${x + 18},${y} ${x},${y + 18} ${x - 18},${y}`} fill={c} />
-      );
-    default:
-      return null;
   }
-}
+`;
-
-interface Highlight {
-  nodes: Set<string>;
-  edges: Set<string>;
-}
-
-function highlightFor(graph: PodGraph, mode: Mode, selected: string | null): Highlight | null {
-  if (selected) {
-    const es = graph.edges.filter((e) => e.source === selected || e.target === selected);
-    return {
-      nodes: new Set([selected, ...es.flatMap((e) => [e.source, e.target])]),
-      edges: new Set(es.map((e) => e.id)),
-    };
-  }
-  if (mode === 'all') return null;
-  const kinds: PodGraphEdge['kind'][] =
-    mode === 'risk' ? ['collides', 'warns', 'learned_from'] : ['learned_from', 'warns'];
-  const collisions = new Set(graph.nodes.filter((n) => n.kind === 'collision').map((n) => n.id));
-  const es = graph.edges.filter(
-    (e) =>
-      kinds.includes(e.kind) ||
-      (mode === 'risk' && (collisions.has(e.target) || collisions.has(e.source))),
-  );
-  return {
-    nodes: new Set(es.flatMap((e) => [e.source, e.target])),
-    edges: new Set(es.map((e) => e.id)),
-  };
-}
-
-const LEGEND: Array<{ label: string; swatch: CSSProperties }> = [
-  { label: 'engineer', swatch: { background: BLUE } },
-  { label: 'file', swatch: { border: `2px solid ${SLATE}` } },
-  { label: 'feature', swatch: { background: AMBER, borderRadius: '50%' } },
-  { label: 'collision', swatch: { background: RED, clipPath: 'polygon(50% 0,100% 100%,0 100%)' } },
-  { label: 'intervention', swatch: { background: VIOLET, transform: 'rotate(45deg)' } },
-];
-
-function statusColor(status: string): string {
-  if (status === 'risk') return RED;
-  if (status === 'learned') return VIOLET;
-  return 'var(--foreground)';
-}
 
 export function GraphView({ podId, onClose }: { podId: string; onClose: () => void }) {
   const [graph, setGraph] = useState<PodGraph | null>(null);
@@ -115,198 +40,170 @@ export function GraphView({ podId, onClose }: { podId: string; onClose: () => vo
 
   useEffect(() => {
     let alive = true;
+    let nudge: number | null = null;
     setGraph(null);
     setError(null);
-    fetchPodGraph(podId)
+    setSelected(null);
-      .then((g) => alive && setGraph(g))
+
-      .catch((e: unknown) => alive && setError(e instanceof Error ? e.message : String(e)));
+    const load = () =>
+      fetchPodGraph(podId)
+        .then((g) => {
+          if (alive) {
+            setGraph(g);
+            setError(null);
+          }
+        })
+        .catch((e: unknown) => {
+          if (alive) setError(e instanceof Error ? e.message : String(e));
+        });
+
+    void load();
+    const poll = window.setInterval(() => void load(), POLL_MS);
+
+    // Best-effort realtime nudge: refetch (debounced) when the agent broadcasts.
+    let ws: WebSocket | null = null;
+    try {
+      ws = new WebSocket(backendEventsUrl());
+      ws.onmessage = () => {
+        if (nudge != null) return;
+        nudge = window.setTimeout(() => {
+          nudge = null;
+          void load();
+        }, 800);
+      };
+    } catch {
+      /* event bus is optional */
+    }
+
     return () => {
       alive = false;
+      window.clearInterval(poll);
+      if (nudge != null) window.clearTimeout(nudge);
+      ws?.close();
     };
   }, [podId]);
 
-  const hi = useMemo(
-    () => (graph ? highlightFor(graph, mode, selected) : null),
-    [graph, mode, selected],
-  );
   const nodeById = useMemo(() => new Map((graph?.nodes ?? []).map((n) => [n.id, n])), [graph]);
-  const sel = selected ? nodeById.get(selected) : undefined;
+  // A selected node can vanish across a poll/WS refresh. Ignore a stale id so the
-  const relCount = selected
+  // graph doesn't dim entirely (highlightFor would otherwise light only a dead id).
-    ? (graph?.edges ?? []).filter((e) => e.source === selected || e.target === selected).length
+  const liveSelected = selected && nodeById.has(selected) ? selected : null;
-    : 0;
+  useEffect(() => {
+    if (selected && graph && !nodeById.has(selected)) setSelected(null);
+  }, [graph, nodeById, selected]);
 
-  const dimNode = (id: string) => (hi ? !hi.nodes.has(id) : false);
+  const highlight = useMemo(
-  const dimEdge = (id: string) => (hi ? !hi.edges.has(id) : false);
+    () => (graph ? highlightFor(graph, mode, liveSelected) : null),
-  const hotEdge = (id: string) => (hi ? hi.edges.has(id) : false);
+    [graph, mode, liveSelected],
+  );
+  const sel = liveSelected ? nodeById.get(liveSelected) : undefined;
+  const relCount = liveSelected
+    ? (graph?.edges ?? []).filter((e) => e.source === liveSelected || e.target === liveSelected)
+        .length
+    : 0;
+  const flow = graph && liveSelected ? flowNarrative(graph, liveSelected) : '';
 
   function pick(next: Mode) {
     setMode(next);
     setSelected(null);
   }
 
-  const toggleVariant = (m: Mode) => (mode === m && !selected ? 'default' : 'outline');
-
   return (
     <div className="min-h-screen bg-background text-foreground">
+      <style>{GRAPH_CSS}</style>
       <div className="mx-auto w-full max-w-7xl px-4 py-4 sm:px-6 lg:px-8">
-        <style>{`
+        <div className="overflow-hidden rounded-xl border bg-card text-card-foreground shadow-sm">
-          .pm-node{cursor:pointer}
+          {/* Header */}
-          .pm-lbl{fill:var(--foreground);font-size:11px;font-weight:500}
+          <div className="flex items-center justify-between gap-3 border-b px-5 py-4">
-          .pm-dim{opacity:.18;transition:opacity .25s}
+            <div className="min-w-0">
-        `}</style>
+              <div className="flex items-center gap-2">
-
+                <h2 className="font-heading text-base font-medium">Team memory</h2>
-        <div className="overflow-hidden rounded-xl border bg-card text-card-foreground">
+                <span className="inline-flex items-center gap-1.5 rounded-full border px-2 py-0.5 text-[0.65rem] font-medium uppercase tracking-wide text-muted-foreground">
-          <div className="flex items-center justify-between border-b px-5 py-4">
+                  <span className="pm-pulse inline-block size-1.5 rounded-full bg-[#16a34a]" />
-            <div>
+                  Live
-              <h2 className="text-base font-medium">Team memory</h2>
+                </span>
-              <p className="mt-0.5 text-xs text-muted-foreground">What PodMan learned · {podId}</p>
+              </div>
+              <p className="mt-0.5 truncate text-xs text-muted-foreground">
+                What PodMan learned · {podId}
+              </p>
             </div>
             <Button variant="outline" size="sm" onClick={onClose}>
               ← Pods
             </Button>
           </div>
 
-          <div className="flex flex-wrap gap-2 border-b px-4 py-3">
+          {/* Toggles */}
-            <Button variant={toggleVariant('risk')} size="sm" onClick={() => pick('risk')}>
+          <div className="flex flex-wrap items-center gap-2 border-b px-4 py-3">
-              Risk path
+            <ToggleGroup
-            </Button>
+              type="single"
-            <Button variant={toggleVariant('learn')} size="sm" onClick={() => pick('learn')}>
+              value={mode}
-              Learning edges
+              onValueChange={(v) => v && pick(v as Mode)}
-            </Button>
+              variant="outline"
-            <Button variant={toggleVariant('all')} size="sm" onClick={() => pick('all')}>
+              size="sm"
-              Whole graph
+            >
-            </Button>
+              <ToggleGroupItem value="risk">Risk path</ToggleGroupItem>
+              <ToggleGroupItem value="learn">Learning edges</ToggleGroupItem>
+              <ToggleGroupItem value="all">Whole graph</ToggleGroupItem>
+            </ToggleGroup>
+            <span className="ml-auto hidden text-xs text-muted-foreground sm:inline">
+              Drag to rearrange · double-click to release · click to inspect
+            </span>
           </div>
 
           {error && <p className="px-4 py-4 text-sm text-destructive">Graph error: {error}</p>}
           {!graph && !error && (
-            <p className="px-4 py-4 text-sm text-muted-foreground">Loading graph…</p>
+            <p className="px-4 py-10 text-center text-sm text-muted-foreground">Loading graph…</p>
           )}
 
           {graph && (
             <>
-              <div className="grid lg:grid-cols-[190px_1fr_250px]">
+              {/* Metrics · graph · learning loop */}
-                <div className="space-y-3 p-4">
+              <div className="grid gap-4 p-4 lg:grid-cols-[180px_minmax(0,1fr)_212px]">
-                  <p className="text-xs font-medium uppercase tracking-wide text-muted-foreground">
+                <MetricsRail metrics={graph.metrics} />
-                    Workflow metrics
+
-                  </p>
+                <div className="flex min-h-[440px] flex-col overflow-hidden rounded-xl border bg-card">
-                  {graph.metrics.map((m) => (
+                  <GraphCanvas
-                    <div key={m.label} className="rounded-lg border bg-card px-3 py-2.5">
+                    graph={graph}
-                      <p className="text-2xl font-medium tabular-nums">{m.value}</p>
+                    highlight={highlight}
-                      <p className="mt-1 text-xs font-medium uppercase text-muted-foreground">
+                    selected={liveSelected}
-                        {m.label}
+                    onSelect={setSelected}
-                      </p>
+                  />
-                      <p className="mt-1 text-xs leading-snug text-muted-foreground">{m.detail}</p>
-                    </div>
-                  ))}
                 </div>
 
-                <div className="min-h-[472px] border-y bg-card lg:border-x lg:border-y-0">
+                {graph.loop?.steps?.length ? <LearningLoop loop={graph.loop} /> : <div />}
-                  <svg
+              </div>
-                    viewBox="0 0 720 472"
-                    role="img"
-                    aria-label="PodMan team-memory graph"
-                    className="block h-auto w-full"
-                  >
-                    {graph.edges.map((e) => {
-                      const a = nodeById.get(e.source);
-                      const b = nodeById.get(e.target);
-                      if (!a || !b) return null;
-                      const s = EDGE[e.kind];
-                      return (
-                        <line
-                          key={e.id}
-                          className={dimEdge(e.id) ? 'pm-dim' : undefined}
-                          x1={a.x}
-                          y1={a.y}
-                          x2={b.x}
-                          y2={b.y}
-                          stroke={s.c}
-                          strokeWidth={hotEdge(e.id) ? s.w + 1.6 : s.w}
-                          strokeDasharray={s.dash ? '7 6' : undefined}
-                          strokeLinecap="round"
-                        />
-                      );
-                    })}
-                    {graph.nodes.map((n) => (
-                      <g
-                        key={n.id}
-                        className={`pm-node ${dimNode(n.id) ? 'pm-dim' : ''}`}
-                        role="button"
-                        tabIndex={0}
-                        aria-label={`${n.kind}: ${n.label}`}
-                        onClick={() => setSelected((cur) => (cur === n.id ? null : n.id))}
-                        onKeyDown={(ev) => {
-                          if (ev.key === 'Enter' || ev.key === ' ') {
-                            ev.preventDefault();
-                            setSelected((cur) => (cur === n.id ? null : n.id));
-                          }
-                        }}
-                      >
-                        <NodeShape node={n} />
-                        <text className="pm-lbl" x={n.x} y={n.y + 33} textAnchor="middle">
-                          {n.label}
-                        </text>
-                      </g>
-                    ))}
-                  </svg>
-                </div>
 
-                <div className="border-t bg-muted p-4 lg:border-l lg:border-t-0">
+              {/* Activity stream · selected node */}
-                  {sel ? (
+              <div className="grid gap-4 border-t px-4 py-4 lg:grid-cols-[minmax(0,1fr)_320px]">
-                    <>
+                <div className="rounded-xl border bg-card p-4">
-                      <p className="text-xs uppercase tracking-wide text-muted-foreground">
+                  <ActivityStream events={graph.activity ?? []} />
-                        {sel.kind}
+                </div>
-                      </p>
+                <div className="rounded-xl border bg-muted/40 p-4">
-                      <h3 className="mb-3 mt-1 text-lg font-medium">{sel.label}</h3>
+                  <SelectedNodePanel node={sel} relCount={relCount} flow={flow} mode={mode} />
-                      <div className="flex items-center justify-between border-b py-1.5 text-sm text-muted-foreground">
-                        <span>Status</span>
-                        <Badge variant="outline" style={{ color: statusColor(sel.status) }}>
-                          {sel.status}
-                        </Badge>
-                      </div>
-                      <div className="flex items-center justify-between border-b py-1.5 text-sm text-muted-foreground">
-                        <span>Relationships</span>
-                        <span className="font-medium text-foreground">{relCount}</span>
-                      </div>
-                      <p className="mt-2.5 text-sm leading-relaxed text-muted-foreground">
-                        {sel.summary}
-                      </p>
-                    </>
-                  ) : (
-                    <>
-                      <p className="text-xs uppercase tracking-wide text-muted-foreground">
-                        Continual learning
-                      </p>
-                      <h3 className="mb-3 mt-1 text-lg font-medium">It learned</h3>
-                      <p className="text-sm leading-relaxed text-muted-foreground">
-                        The violet{' '}
-                        <span className="font-medium" style={{ color: VIOLET }}>
-                          learned_from
-                        </span>{' '}
-                        edges are ownership PodMan retained from accepted interventions — the graph
-                        gets sharper every session. Click any node to trace its relationships.
-                      </p>
-                    </>
-                  )}
                 </div>
               </div>
 
-              <div className="flex flex-wrap gap-3 border-t px-4 py-2.5 text-xs text-muted-foreground">
+              {/* Legend */}
-                {LEGEND.map((l) => (
+              <div className="flex flex-wrap items-center gap-x-3 gap-y-1.5 border-t px-4 py-2.5 text-xs text-muted-foreground">
+                {NODE_LEGEND.map((l) => (
                   <span key={l.label} className="flex items-center gap-1.5">
                     <span className="inline-block size-3" style={l.swatch} />
                     {l.label}
                   </span>
                 ))}
-                <span className="flex items-center gap-1.5">
+                <span className="mx-1 h-3 w-px bg-border" aria-hidden />
-                  <span className="inline-block h-[3px] w-3" style={{ background: RED }} />
+                {EDGE_LEGEND.map((l) => (
-                  collides
+                  <span key={l.label} className="flex items-center gap-1.5">
-                </span>
+                    <span
-                <span className="flex items-center gap-1.5">
+                      className="inline-block h-[3px] w-3.5"
-                  <span className="inline-block h-[3px] w-3" style={{ background: VIOLET }} />
+                      style={
-                  learned_from
+                        l.dash
-                </span>
+                          ? { backgroundImage: `repeating-linear-gradient(90deg, ${l.color} 0 3px, transparent 3px 6px)` }
+                          : { background: l.color }
+                      }
+                    />
+                    {l.label}
+                  </span>
+                ))}
               </div>
             </>
           )}

frontend/src/components/graph/ActivityStream.tsx

@@ -0,0 +1,52 @@
+import type { PodGraphActivity } from '@podman/shared';
+import { ScrollArea } from '@/components/ui/scroll-area';
+import { ACTIVITY_TAG } from './encoding.js';
+
+const fmtTime = new Intl.DateTimeFormat([], { hour: '2-digit', minute: '2-digit', hour12: false });
+
+function timeOf(at: string): string {
+  const t = new Date(at).getTime();
+  return Number.isFinite(t) ? fmtTime.format(t) : '--:--';
+}
+
+export function ActivityStream({ events }: { events: PodGraphActivity[] }) {
+  return (
+    <div className="flex h-full flex-col">
+      <p className="mb-2 text-xs font-medium uppercase tracking-wide text-muted-foreground">
+        Activity stream
+      </p>
+      {events.length === 0 ? (
+        <p className="text-sm text-muted-foreground">No activity yet.</p>
+      ) : (
+        <ScrollArea className="h-[176px] pr-3">
+          <ul className="space-y-1.5">
+            {events.map((e) => {
+              const tag = ACTIVITY_TAG[e.kind];
+              return (
+                <li key={e.id} className="pm-enter flex items-start gap-2.5 text-sm">
+                  <span className="mt-0.5 shrink-0 font-mono text-xs tabular-nums text-muted-foreground">
+                    {timeOf(e.at)}
+                  </span>
+                  <span
+                    className="mt-0.5 shrink-0 rounded px-1.5 py-0.5 text-[0.6rem] font-semibold uppercase tracking-wide"
+                    style={{ color: tag.color, background: `${tag.color}1a` }}
+                  >
+                    {tag.label}
+                  </span>
+                  <span className="min-w-0 flex-1 leading-snug">
+                    <span className="text-foreground/90">{e.title}</span>
+                    {e.detail && (
+                      <span className="block text-xs leading-snug text-muted-foreground">
+                        {e.detail}
+                      </span>
+                    )}
+                  </span>
+                </li>
+              );
+            })}
+          </ul>
+        </ScrollArea>
+      )}
+    </div>
+  );
+}

frontend/src/components/graph/GraphCanvas.tsx

@@ -0,0 +1,333 @@
+import {
+  useCallback,
+  useEffect,
+  useRef,
+  useState,
+  type ReactElement,
+  type PointerEvent,
+} from 'react';
+import type { PodGraph, PodGraphNode, PodGraphNodeKind } from '@podman/shared';
+import { ForceSim } from './forceSim.js';
+import { EDGE, KIND_COLOR, nodeRadius, type Highlight } from './encoding.js';
+
+const W = 760;
+const H = 480;
+const MARGIN = 48;
+
+/** Map the server's 0..720×0..472 layout into the canvas as a seed position. */
+function mapX(x: number): number {
+  return MARGIN + (Math.max(0, Math.min(720, x)) / 720) * (W - 2 * MARGIN);
+}
+function mapY(y: number): number {
+  return MARGIN + (Math.max(0, Math.min(472, y)) / 472) * (H - 2 * MARGIN);
+}
+
+function linkDistance(kind: string): number {
+  if (kind === 'collides') return 122;
+  if (kind === 'owns') return 104;
+  if (kind === 'learned_from') return 150;
+  return 134;
+}
+function linkStrength(strength: number): number {
+  return Math.max(0.18, Math.min(0.9, strength));
+}
+
+/** Stable +/- so parallel edges between the same pair fan to opposite sides. */
+function curveSign(id: string): number {
+  let h = 0;
+  for (let i = 0; i < id.length; i++) h = (h + id.charCodeAt(i)) % 2;
+  return h === 0 ? 1 : -1;
+}
+
+function edgePath(ax: number, ay: number, bx: number, by: number, id: string): string {
+  const dx = bx - ax;
+  const dy = by - ay;
+  const len = Math.hypot(dx, dy) || 1;
+  const nx = -dy / len;
+  const ny = dx / len;
+  const off = curveSign(id) * len * 0.13;
+  const cx = (ax + bx) / 2 + nx * off;
+  const cy = (ay + by) / 2 + ny * off;
+  return `M${ax.toFixed(1)},${ay.toFixed(1)} Q${cx.toFixed(1)},${cy.toFixed(1)} ${bx.toFixed(1)},${by.toFixed(1)}`;
+}
+
+function nodeShape(
+  kind: PodGraphNodeKind,
+  color: string,
+  cx: number,
+  cy: number,
+  r: number,
+): ReactElement | null {
+  switch (kind) {
+    case 'engineer':
+      return <rect x={cx - r} y={cy - r} width={r * 2} height={r * 2} rx={4} fill={color} />;
+    case 'file':
+      return (
+        <rect
+          x={cx - r}
+          y={cy - r}
+          width={r * 2}
+          height={r * 2}
+          rx={4}
+          fill="var(--card)"
+          stroke={color}
+          strokeWidth={2.4}
+        />
+      );
+    case 'feature':
+      return <circle cx={cx} cy={cy} r={r} fill={color} />;
+    case 'collision':
+      return (
+        <polygon
+          points={`${cx},${cy - r} ${cx + r},${cy + r * 0.78} ${cx - r},${cy + r * 0.78}`}
+          fill={color}
+        />
+      );
+    case 'intervention':
+      return (
+        <polygon points={`${cx},${cy - r} ${cx + r},${cy} ${cx},${cy + r} ${cx - r},${cy}`} fill={color} />
+      );
+    default:
+      return null;
+  }
+}
+
+function showLabel(
+  node: PodGraphNode,
+  dimmed: boolean,
+  hovered: boolean,
+  selected: boolean,
+): boolean {
+  if (hovered || selected) return true;
+  if (dimmed) return false;
+  // Collisions cluster and often share a filename — reveal on hover/select only.
+  if (node.kind === 'collision') return false;
+  return true;
+}
+
+interface DragState {
+  id: string;
+  pointerId: number;
+  moved: boolean;
+}
+
+export function GraphCanvas({
+  graph,
+  highlight,
+  selected,
+  onSelect,
+}: {
+  graph: PodGraph;
+  highlight: Highlight | null;
+  selected: string | null;
+  onSelect: (id: string | null) => void;
+}) {
+  const svgRef = useRef<SVGSVGElement | null>(null);
+  const simRef = useRef<ForceSim | null>(null);
+  if (!simRef.current) simRef.current = new ForceSim(W, H);
+  const rafRef = useRef<number | null>(null);
+  const dragRef = useRef<DragState | null>(null);
+  const sigRef = useRef<string>('');
+  const [, setFrame] = useState(0);
+  const [hovered, setHovered] = useState<string | null>(null);
+
+  const loop = useCallback(() => {
+    const sim = simRef.current;
+    if (!sim) return;
+    const working = sim.tick();
+    setFrame((f) => (f + 1) % 1_000_000);
+    if (working || dragRef.current) {
+      rafRef.current = requestAnimationFrame(loop);
+    } else {
+      rafRef.current = null;
+    }
+  }, []);
+
+  const ensureRaf = useCallback(() => {
+    if (rafRef.current == null) rafRef.current = requestAnimationFrame(loop);
+  }, [loop]);
+
+  // Rebuild the simulation when the graph data changes, preserving positions.
+  useEffect(() => {
+    const sim = simRef.current;
+    if (!sim) return;
+    const nodeInputs = graph.nodes.map((n) => ({
+      id: n.id,
+      radius: nodeRadius(n),
+      seedX: mapX(n.x),
+      seedY: mapY(n.y),
+    }));
+    const linkInputs = graph.edges.map((e) => ({
+      source: e.source,
+      target: e.target,
+      distance: linkDistance(e.kind),
+      strength: linkStrength(e.strength),
+    }));
+    const sig =
+      nodeInputs
+        .map((n) => n.id)
+        .sort()
+        .join(',') +
+      '|' +
+      graph.edges
+        .map((e) => e.id)
+        .sort()
+        .join(',');
+    const first = sigRef.current === '';
+    const changed = sig !== sigRef.current;
+    sim.setData(nodeInputs, linkInputs);
+    if (changed) {
+      sigRef.current = sig;
+      sim.reheat(first ? 1 : 0.5);
+    }
+    // Always (re)arm the loop — ensureRaf is idempotent via the rafRef==null
+    // guard. This must NOT be gated on `changed`: under React StrictMode the
+    // dev double-invoke cancels the frame between effect passes, and pass 2 sees
+    // an unchanged sig, so a `changed`-gated start would leave the sim frozen.
+    if (sim.nodes.length) ensureRaf();
+  }, [graph, ensureRaf]);
+
+  // Clean up the animation frame on unmount.
+  useEffect(() => {
+    return () => {
+      if (rafRef.current != null) cancelAnimationFrame(rafRef.current);
+      rafRef.current = null;
+    };
+  }, []);
+
+  function toSvg(evt: PointerEvent): { x: number; y: number } {
+    const svg = svgRef.current;
+    if (!svg) return { x: 0, y: 0 };
+    const ctm = svg.getScreenCTM();
+    if (!ctm) return { x: 0, y: 0 };
+    const p = new DOMPoint(evt.clientX, evt.clientY).matrixTransform(ctm.inverse());
+    return { x: p.x, y: p.y };
+  }
+
+  function onNodePointerDown(evt: PointerEvent, id: string) {
+    evt.stopPropagation();
+    const sim = simRef.current;
+    if (!sim) return;
+    (evt.currentTarget as Element).setPointerCapture(evt.pointerId);
+    dragRef.current = { id, pointerId: evt.pointerId, moved: false };
+    const { x, y } = toSvg(evt);
+    sim.pin(id, x, y);
+    sim.setActive(true);
+    ensureRaf();
+  }
+
+  function onNodePointerMove(evt: PointerEvent) {
+    const drag = dragRef.current;
+    const sim = simRef.current;
+    if (!drag || !sim || drag.pointerId !== evt.pointerId) return;
+    drag.moved = true;
+    const { x, y } = toSvg(evt);
+    sim.pin(drag.id, x, y);
+    ensureRaf();
+  }
+
+  function onNodePointerUp(evt: PointerEvent, id: string) {
+    const drag = dragRef.current;
+    const sim = simRef.current;
+    if (!drag || !sim || drag.pointerId !== evt.pointerId) return;
+    (evt.currentTarget as Element).releasePointerCapture?.(evt.pointerId);
+    sim.setActive(false);
+    // A press that never moved is a click — toggle selection (node stays pinned).
+    if (!drag.moved) onSelect(selected === id ? null : id);
+    dragRef.current = null;
+    ensureRaf();
+  }
+
+  function onNodeDoubleClick(id: string) {
+    const sim = simRef.current;
+    if (!sim) return;
+    sim.unpin(id);
+    sim.reheat(0.5);
+    ensureRaf();
+  }
+
+  const sim = simRef.current;
+  const dimNode = (id: string) => (highlight ? !highlight.nodes.has(id) : false);
+  const dimEdge = (id: string) => (highlight ? !highlight.edges.has(id) : false);
+  const hotEdge = (id: string) => (highlight ? highlight.edges.has(id) : false);
+
+  return (
+    <svg
+      ref={svgRef}
+      viewBox={`0 0 ${W} ${H}`}
+      role="img"
+      aria-label="PodMan team-memory graph — drag nodes to rearrange"
+      className="block h-full max-h-[560px] w-full touch-none select-none"
+      onPointerDown={() => onSelect(null)}
+    >
+      <g>
+        {graph.edges.map((e) => {
+          const a = sim?.get(e.source);
+          const b = sim?.get(e.target);
+          if (!a || !b) return null;
+          const style = EDGE[e.kind];
+          const hot = hotEdge(e.id);
+          return (
+            <path
+              key={e.id}
+              className={`pm-edge pm-enter ${dimEdge(e.id) ? 'pm-dim' : ''} ${e.kind === 'learned_from' ? 'pm-dash' : ''}`}
+              d={edgePath(a.x, a.y, b.x, b.y, e.id)}
+              fill="none"
+              stroke={style.c}
+              strokeWidth={hot ? style.w + 1.4 : style.w}
+              strokeOpacity={hot ? 1 : 0.78}
+              strokeDasharray={style.dash ? '7 6' : undefined}
+              strokeLinecap="round"
+            />
+          );
+        })}
+      </g>
+      <g>
+        {graph.nodes.map((n) => {
+          const p = sim?.get(n.id);
+          if (!p) return null;
+          const r = p.radius;
+          const dimmed = dimNode(n.id);
+          const isHover = hovered === n.id;
+          const isSel = selected === n.id;
+          const color = KIND_COLOR[n.kind];
+          const pinned = p.fx != null;
+          return (
+            <g
+              key={n.id}
+              className={`pm-node pm-enter ${dimmed ? 'pm-dim' : ''}`}
+              role="button"
+              tabIndex={0}
+              aria-label={`${n.kind}: ${n.label}`}
+              onPointerDown={(ev) => onNodePointerDown(ev, n.id)}
+              onPointerMove={onNodePointerMove}
+              onPointerUp={(ev) => onNodePointerUp(ev, n.id)}
+              onDoubleClick={() => onNodeDoubleClick(n.id)}
+              onMouseEnter={() => setHovered(n.id)}
+              onMouseLeave={() => setHovered((cur) => (cur === n.id ? null : cur))}
+              onKeyDown={(ev) => {
+                if (ev.key === 'Enter' || ev.key === ' ') {
+                  ev.preventDefault();
+                  onSelect(selected === n.id ? null : n.id);
+                }
+              }}
+            >
+              {(isSel || isHover) && (
+                <circle cx={p.x} cy={p.y} r={r + 7} fill="none" stroke={color} strokeWidth={2} strokeOpacity={0.5} />
+              )}
+              {pinned && !isSel && !isHover && (
+                <circle cx={p.x} cy={p.y} r={r + 4} fill="none" stroke={color} strokeWidth={1} strokeDasharray="2 3" strokeOpacity={0.4} />
+              )}
+              {nodeShape(n.kind, color, p.x, p.y, r)}
+              {showLabel(n, dimmed, isHover, isSel) && (
+                <text className="pm-lbl" x={p.x} y={p.y + r + 13} textAnchor="middle">
+                  {n.label}
+                </text>
+              )}
+            </g>
+          );
+        })}
+      </g>
+    </svg>
+  );
+}

frontend/src/components/graph/LearningLoop.tsx

@@ -0,0 +1,49 @@
+import type { PodLearningLoop } from '@podman/shared';
+import { BLUE } from './encoding.js';
+
+/**
+ * The continual-learning loop rail: observe → store → predict → outcome → adapt.
+ * The active stage (most-recent activity) gets a pulsing accent bar + ring.
+ */
+export function LearningLoop({ loop }: { loop: PodLearningLoop }) {
+  return (
+    <div className="space-y-1">
+      <p className="mb-2 text-xs font-medium uppercase tracking-wide text-muted-foreground">
+        Learning loop
+      </p>
+      {loop.steps.map((s, i) => {
+        const active = s.status === 'active' || s.key === loop.activeStep;
+        return (
+          <div key={s.key}>
+            <div
+              className="relative overflow-hidden rounded-lg border bg-card py-2 pl-3.5 pr-3 shadow-sm transition-colors data-[active=true]:bg-accent/40"
+              data-active={active}
+              style={active ? { boxShadow: `inset 0 0 0 1px ${BLUE}55` } : undefined}
+            >
+              <span
+                aria-hidden
+                className={`absolute inset-y-0 left-0 w-1 ${active ? 'pm-pulse' : ''}`}
+                style={{ background: active ? BLUE : 'var(--border)' }}
+              />
+              <div className="flex items-baseline justify-between gap-2">
+                <p className="text-[0.7rem] font-medium uppercase tracking-wide text-muted-foreground">
+                  <span className="tabular-nums">{String(i + 1).padStart(2, '0')}</span> {s.label}
+                </p>
+                <p className="font-heading text-sm font-semibold tabular-nums">{s.value}</p>
+              </div>
+              <p className="mt-0.5 text-xs leading-snug text-muted-foreground">{s.detail}</p>
+            </div>
+            {i < loop.steps.length - 1 && (
+              <p
+                aria-hidden
+                className="py-0.5 text-center text-xs leading-none text-muted-foreground/60"
+              >
+                ↓
+              </p>
+            )}
+          </div>
+        );
+      })}
+    </div>
+  );
+}

frontend/src/components/graph/MetricsRail.tsx

@@ -0,0 +1,37 @@
+import type { PodGraphMetric } from '@podman/shared';
+import { BLUE, RED, VIOLET, GREEN, AMBER } from './encoding.js';
+
+const ACCENTS: Array<{ test: RegExp; color: string }> = [
+  { test: /risk|collision|open/i, color: RED },
+  { test: /accept/i, color: GREEN },
+  { test: /learn|owner|adapt/i, color: VIOLET },
+  { test: /vector|memory|store/i, color: AMBER },
+];
+
+function accentFor(label: string, i: number): string {
+  for (const a of ACCENTS) if (a.test.test(label)) return a.color;
+  return [BLUE, RED, VIOLET, GREEN, AMBER][i % 5] ?? BLUE;
+}
+
+export function MetricsRail({ metrics }: { metrics: PodGraphMetric[] }) {
+  return (
+    <div className="space-y-2.5">
+      <p className="text-xs font-medium uppercase tracking-wide text-muted-foreground">
+        Workflow metrics
+      </p>
+      {metrics.map((m, i) => (
+        <div
+          key={m.label}
+          className="rounded-lg border bg-card py-2.5 pl-3 pr-3 shadow-sm"
+          style={{ borderLeftWidth: 3, borderLeftColor: accentFor(m.label, i) }}
+        >
+          <p className="font-heading text-2xl font-semibold leading-none tabular-nums">{m.value}</p>
+          <p className="mt-1.5 text-[0.7rem] font-medium uppercase tracking-wide text-muted-foreground">
+            {m.label}
+          </p>
+          <p className="mt-1 text-xs leading-snug text-muted-foreground">{m.detail}</p>
+        </div>
+      ))}
+    </div>
+  );
+}

frontend/src/components/graph/SelectedNodePanel.tsx

@@ -0,0 +1,63 @@
+import type { PodGraphNode } from '@podman/shared';
+import { Badge } from '@/components/ui/badge';
+import { statusColor, modeBlurb, VIOLET, type Mode } from './encoding.js';
+
+export function SelectedNodePanel({
+  node,
+  relCount,
+  flow,
+  mode,
+}: {
+  node: PodGraphNode | undefined;
+  relCount: number;
+  flow: string;
+  mode: Mode;
+}) {
+  if (!node) {
+    return (
+      <div className="flex h-full flex-col">
+        <p className="mb-2 text-xs font-medium uppercase tracking-wide text-muted-foreground">
+          {mode === 'learn' ? 'Learning edges' : mode === 'all' ? 'Whole graph' : 'Risk path'}
+        </p>
+        <h3 className="mb-2 font-heading text-base font-medium">What you're looking at</h3>
+        <p className="text-sm leading-relaxed text-muted-foreground">{modeBlurb(mode)}</p>
+        <p className="mt-3 text-sm leading-relaxed text-muted-foreground">
+          Click any node to trace its{' '}
+          <span className="font-medium" style={{ color: VIOLET }}>
+            flow
+          </span>{' '}
+          — what PodMan saw, flagged, and learned. Drag to rearrange.
+        </p>
+      </div>
+    );
+  }
+  return (
+    <div className="flex h-full flex-col">
+      <p className="text-xs font-medium uppercase tracking-wide text-muted-foreground">
+        {node.kind}
+      </p>
+      <h3 className="mb-2 mt-0.5 font-heading text-lg font-medium">{node.label}</h3>
+      <div className="flex items-center justify-between border-b py-1.5 text-sm text-muted-foreground">
+        <span>Status</span>
+        <Badge variant="outline" style={{ color: statusColor(node.status) }}>
+          {node.status}
+        </Badge>
+      </div>
+      <div className="flex items-center justify-between border-b py-1.5 text-sm text-muted-foreground">
+        <span>Relationships</span>
+        <span className="font-medium text-foreground">{relCount}</span>
+      </div>
+      {flow && (
+        <>
+          <p className="mt-2.5 text-[0.7rem] font-medium uppercase tracking-wide text-muted-foreground">
+            Flow
+          </p>
+          <p className="mt-1 text-sm leading-relaxed text-foreground/90">{flow}</p>
+        </>
+      )}
+      {node.summary && node.summary !== flow && (
+        <p className="mt-2 text-xs leading-relaxed text-muted-foreground">{node.summary}</p>
+      )}
+    </div>
+  );
+}

frontend/src/components/graph/encoding.ts

@@ -0,0 +1,210 @@
+import type { CSSProperties } from 'react';
+import type {
+  PodGraph,
+  PodGraphNode,
+  PodGraphEdge,
+  PodGraphNodeKind,
+  PodGraphActivityKind,
+} from '@podman/shared';
+
+/**
+ * Fixed, light-readable hues for the node/edge encoding. Kept stable across
+ * light/dark so kinds stay distinguishable; only the chrome uses shadcn tokens.
+ */
+export const BLUE = '#2563eb';
+export const SLATE = '#475569';
+export const SLATE_EDGE = '#94a3b8';
+export const SLATE_FAINT = '#cbd5e1';
+export const AMBER = '#d97706';
+export const RED = '#dc2626';
+export const VIOLET = '#7c3aed';
+export const GREEN = '#16a34a';
+
+/** Tag color + short label per activity-stream kind. */
+export const ACTIVITY_TAG: Record<PodGraphActivityKind, { color: string; label: string }> = {
+  editing: { color: SLATE, label: 'EDITING' },
+  collision: { color: RED, label: 'COLLISION' },
+  intervention: { color: AMBER, label: 'NUDGE' },
+  outcome: { color: GREEN, label: 'OUTCOME' },
+  learned: { color: VIOLET, label: 'LEARNED' },
+  agent: { color: BLUE, label: 'AGENT' },
+};
+
+export const KIND_COLOR: Record<PodGraphNodeKind, string> = {
+  engineer: BLUE,
+  file: SLATE,
+  feature: AMBER,
+  collision: RED,
+  intervention: VIOLET,
+};
+
+export interface EdgeStyle {
+  c: string;
+  w: number;
+  dash?: boolean;
+}
+
+export const EDGE: Record<PodGraphEdge['kind'], EdgeStyle> = {
+  owns: { c: BLUE, w: 2.4 },
+  editing: { c: SLATE_EDGE, w: 1.9 },
+  touches: { c: SLATE_FAINT, w: 1.5 },
+  collides: { c: RED, w: 2.8 },
+  warns: { c: AMBER, w: 2.8 },
+  learned_from: { c: VIOLET, w: 2.4, dash: true },
+};
+
+/** Collision/drawing radius for a node — scaled by its 0..1 weight. */
+export function nodeRadius(node: PodGraphNode): number {
+  const base = node.kind === 'collision' || node.kind === 'intervention' ? 14 : 13;
+  return base + Math.max(0, Math.min(1, node.weight)) * 7;
+}
+
+export function statusColor(status: string): string {
+  if (status === 'risk') return RED;
+  if (status === 'learned') return VIOLET;
+  if (status === 'active') return BLUE;
+  return 'var(--muted-foreground)';
+}
+
+export type Mode = 'risk' | 'learn' | 'all';
+
+export interface Highlight {
+  nodes: Set<string>;
+  edges: Set<string>;
+}
+
+/**
+ * The lit set for the current mode/selection. A selected node lights its
+ * incident edges + neighbors; otherwise the mode lights the risk or learning
+ * chain (collision → intervention → learned_from). `all` lights everything.
+ */
+export function highlightFor(graph: PodGraph, mode: Mode, selected: string | null): Highlight | null {
+  if (selected) {
+    const es = graph.edges.filter((e) => e.source === selected || e.target === selected);
+    return {
+      nodes: new Set([selected, ...es.flatMap((e) => [e.source, e.target])]),
+      edges: new Set(es.map((e) => e.id)),
+    };
+  }
+  if (mode === 'all') return null;
+  const kinds: PodGraphEdge['kind'][] =
+    mode === 'risk' ? ['collides', 'warns', 'learned_from'] : ['learned_from', 'warns'];
+  const collisions = new Set(graph.nodes.filter((n) => n.kind === 'collision').map((n) => n.id));
+  const es = graph.edges.filter(
+    (e) =>
+      kinds.includes(e.kind) ||
+      (mode === 'risk' && (collisions.has(e.target) || collisions.has(e.source))),
+  );
+  return {
+    nodes: new Set(es.flatMap((e) => [e.source, e.target])),
+    edges: new Set(es.map((e) => e.id)),
+  };
+}
+
+function joinNames(ids: string[], label: (id: string) => string): string {
+  const u = [...new Set(ids)].map(label);
+  if (u.length <= 1) return u[0] ?? '';
+  if (u.length === 2) return `${u[0]} and ${u[1]}`;
+  return `${u.slice(0, -1).join(', ')} and ${u[u.length - 1]}`;
+}
+
+/**
+ * A plain-English walk of the flow through a node — what PodMan saw, flagged,
+ * suggested, and learned — so clicking a node explains the path, not just shows
+ * attributes. Built by traversing the node's incident edges.
+ */
+export function flowNarrative(graph: PodGraph, nodeId: string): string {
+  const byId = new Map(graph.nodes.map((n) => [n.id, n]));
+  const node = byId.get(nodeId);
+  if (!node) return '';
+  const label = (id: string): string => byId.get(id)?.label ?? id;
+  const out = graph.edges.filter((e) => e.source === nodeId);
+  const inc = graph.edges.filter((e) => e.target === nodeId);
+
+  switch (node.kind) {
+    case 'engineer': {
+      const edits = out.filter((e) => e.kind === 'editing').map((e) => e.target);
+      const collisions = out.filter((e) => e.kind === 'collides');
+      const owns = out.filter((e) => e.kind === 'owns').map((e) => label(e.target));
+      const learned = inc.some((e) => e.kind === 'learned_from');
+      const parts: string[] = [];
+      if (edits.length) parts.push(`${node.label} is working in ${joinNames(edits, label)}.`);
+      if (collisions.length)
+        parts.push(
+          `PodMan flagged ${collisions.length} overlap${collisions.length === 1 ? '' : 's'} involving ${node.label}.`,
+        );
+      if (learned)
+        parts.push(
+          `From an accepted intervention PodMan learned ${node.label} owns ${owns[0] ?? 'this file'} — retained across sessions.`,
+        );
+      else if (owns.length) parts.push(`PodMan has ${node.label} owning ${joinNames(owns, (s) => s)}.`);
+      return parts.join(' ') || `${node.label} has no active flow right now.`;
+    }
+    case 'file': {
+      const editors = inc.filter((e) => e.kind === 'editing' || e.kind === 'owns').map((e) => e.source);
+      const hasCollision = out.some((e) => e.kind === 'touches');
+      const parts: string[] = [];
+      if (editors.length) parts.push(`${node.label} is being edited by ${joinNames(editors, label)}.`);
+      if (hasCollision)
+        parts.push('Two of those edits overlap before push, so PodMan opened a collision on it.');
+      return parts.join(' ') || node.summary || node.label;
+    }
+    case 'collision': {
+      const engineers = inc.filter((e) => e.kind === 'collides').map((e) => e.source);
+      const fileEdge = inc.find((e) => e.kind === 'touches');
+      const file = fileEdge ? label(fileEdge.source) : 'the same file';
+      const intervention = out.find((e) => e.kind === 'warns');
+      let s = `${joinNames(engineers, label) || 'Two engineers'} are both editing ${file} before pushing — the overlap git can't see.`;
+      if (intervention) s += ` PodMan stepped in and suggested a ${label(intervention.target)}.`;
+      return s;
+    }
+    case 'intervention': {
+      const colEdge = inc.find((e) => e.kind === 'warns');
+      const learned = out.find((e) => e.kind === 'learned_from');
+      // Resolve the collision's underlying file via its touches edge (file → collision).
+      let file = '';
+      if (colEdge) {
+        const fileEdge = graph.edges.find((e) => e.kind === 'touches' && e.target === colEdge.source);
+        file = fileEdge ? label(fileEdge.source) : '';
+      }
+      let s = `PodMan offered a ${node.label}${file ? ` for the overlap on ${file}` : ''}.`;
+      if (learned)
+        s += ` The pod accepted it, so PodMan learned ${label(learned.target)} owns ${file || 'the file'} — the graph got sharper.`;
+      return s;
+    }
+    case 'feature': {
+      const contributors = inc.filter((e) => e.kind === 'owns' || e.kind === 'touches').map((e) => e.source);
+      return contributors.length
+        ? `${node.label} is built on work by ${joinNames(contributors, label)}.`
+        : node.summary || node.label;
+    }
+    default:
+      return node.summary ?? '';
+  }
+}
+
+/** Short explainer for the current view when nothing is selected. */
+export function modeBlurb(mode: Mode): string {
+  if (mode === 'learn')
+    return 'The violet learned_from links are ownership PodMan kept from accepted interventions — the graph sharpens every session.';
+  if (mode === 'all')
+    return 'Everyone, every file, and every collision and intervention PodMan is tracking for this pod.';
+  return 'The lit path: files where two editors collide before push → the nudge PodMan sent → what it learned.';
+}
+
+export const NODE_LEGEND: Array<{ label: string; swatch: CSSProperties }> = [
+  { label: 'engineer', swatch: { background: BLUE } },
+  { label: 'file', swatch: { border: `2px solid ${SLATE}` } },
+  { label: 'feature', swatch: { background: AMBER, borderRadius: '50%' } },
+  { label: 'collision', swatch: { background: RED, clipPath: 'polygon(50% 0,100% 100%,0 100%)' } },
+  { label: 'intervention', swatch: { background: VIOLET, transform: 'rotate(45deg)' } },
+];
+
+export const EDGE_LEGEND: Array<{ label: string; color: string; dash?: boolean }> = [
+  { label: 'collides', color: RED },
+  { label: 'warns', color: AMBER },
+  { label: 'learned_from', color: VIOLET, dash: true },
+  { label: 'owns', color: BLUE },
+  { label: 'editing', color: SLATE_EDGE },
+  { label: 'touches', color: SLATE_FAINT },
+];

frontend/src/components/graph/forceSim.ts

@@ -0,0 +1,284 @@
+/**
+ * A tiny dependency-free force-directed layout — the same family of forces as
+ * d3-force (charge repulsion, link springs, centering, collision) integrated
+ * with velocity-Verlet and an annealing `alpha`. Kept in-house so the dynamic
+ * graph adds no new package / lockfile churn to a fast-moving shared `main`.
+ *
+ * Usage: `setData()` (diff-preserving — existing nodes keep their position),
+ * then drive `tick()` from a requestAnimationFrame loop until `settled()`.
+ */
+
+export interface SimNodeInput {
+  id: string;
+  /** Drawing/collision radius. */
+  radius: number;
+  /** Initial position hint (e.g. the server layout), used only for new nodes. */
+  seedX: number;
+  seedY: number;
+}
+
+export interface SimLinkInput {
+  source: string;
+  target: string;
+  /** Preferred rest length of the spring. */
+  distance: number;
+  /** 0..1 spring strength. */
+  strength: number;
+}
+
+export interface SimNode {
+  id: string;
+  x: number;
+  y: number;
+  vx: number;
+  vy: number;
+  /** When non-null the node is pinned (dragged) and forces don't move it. */
+  fx: number | null;
+  fy: number | null;
+  radius: number;
+}
+
+const ALPHA_MIN = 0.001;
+const ALPHA_DECAY = 1 - Math.pow(ALPHA_MIN, 1 / 300); // settle in ~300 ticks
+const FRICTION = 0.62; // velocity retained per tick
+const REPEL = 4400; // charge repulsion strength — must dominate centering or the graph collapses
+const LINK_K = 0.45; // spring stiffness multiplier
+const CENTER_STRENGTH = 0.014; // gentle positional pull — only keeps the cloud roughly centered
+const RECENTER = 0.5; // per-tick centroid recentering (no compression, keeps graph framed)
+const COLLIDE_PAD = 12;
+const COLLIDE_STRENGTH = 1; // hard separation so linked nodes never stack
+const COLLIDE_ITERS = 2;
+const BOUND_PAD = 30; // keep nodes this far inside the canvas edges
+
+export class ForceSim {
+  nodes: SimNode[] = [];
+  links: SimLinkInput[] = [];
+  alpha = 1;
+  private byId = new Map<string, SimNode>();
+  private alphaTarget = 0;
+  private center: { x: number; y: number };
+  private width: number;
+  private height: number;
+
+  constructor(width: number, height: number) {
+    this.width = width;
+    this.height = height;
+    this.center = { x: width / 2, y: height / 2 };
+  }
+
+  settled(): boolean {
+    return this.alpha < ALPHA_MIN && this.alphaTarget === 0;
+  }
+
+  reheat(a = 0.7): void {
+    this.alpha = Math.max(this.alpha, a);
+  }
+
+  /** Hold the simulation warm while dragging, then release. */
+  setActive(active: boolean): void {
+    this.alphaTarget = active ? 0.18 : 0;
+    if (active) this.reheat(0.25);
+  }
+
+  get(id: string): SimNode | undefined {
+    return this.byId.get(id);
+  }
+
+  pin(id: string, x: number, y: number): void {
+    const n = this.byId.get(id);
+    if (n) {
+      n.fx = x;
+      n.fy = y;
+    }
+  }
+
+  unpin(id: string): void {
+    const n = this.byId.get(id);
+    if (n) {
+      n.fx = null;
+      n.fy = null;
+    }
+  }
+
+  /** Replace the graph, preserving the positions/pins of nodes that persist. */
+  setData(nodeInputs: SimNodeInput[], linkInputs: SimLinkInput[]): { added: string[] } {
+    const prev = this.byId;
+    const next = new Map<string, SimNode>();
+    const added: string[] = [];
+    for (const inp of nodeInputs) {
+      const old = prev.get(inp.id);
+      if (old) {
+        old.radius = inp.radius;
+        next.set(inp.id, old);
+      } else {
+        next.set(inp.id, {
+          id: inp.id,
+          x: inp.seedX + (Math.random() - 0.5) * 14,
+          y: inp.seedY + (Math.random() - 0.5) * 14,
+          vx: 0,
+          vy: 0,
+          fx: null,
+          fy: null,
+          radius: inp.radius,
+        });
+        added.push(inp.id);
+      }
+    }
+    this.byId = next;
+    this.nodes = [...next.values()];
+    this.links = linkInputs.filter((l) => next.has(l.source) && next.has(l.target));
+    return { added };
+  }
+
+  /** Advance one step. Returns false when already settled (no work done). */
+  tick(): boolean {
+    if (this.settled()) return false;
+    this.alpha += (this.alphaTarget - this.alpha) * ALPHA_DECAY;
+    const a = this.alpha;
+    this.applyCharge(a);
+    this.applyLinks(a);
+    this.applyCenter(a);
+    for (let k = 0; k < COLLIDE_ITERS; k++) this.applyCollide();
+    const maxX = this.width - BOUND_PAD;
+    const maxY = this.height - BOUND_PAD;
+    for (const n of this.nodes) {
+      if (n.fx != null) {
+        n.x = n.fx;
+        n.vx = 0;
+      } else {
+        n.vx *= FRICTION;
+        n.x += n.vx;
+        if (n.x < BOUND_PAD) {
+          n.x = BOUND_PAD;
+          n.vx = 0;
+        } else if (n.x > maxX) {
+          n.x = maxX;
+          n.vx = 0;
+        }
+      }
+      if (n.fy != null) {
+        n.y = n.fy;
+        n.vy = 0;
+      } else {
+        n.vy *= FRICTION;
+        n.y += n.vy;
+        if (n.y < BOUND_PAD) {
+          n.y = BOUND_PAD;
+          n.vy = 0;
+        } else if (n.y > maxY) {
+          n.y = maxY;
+          n.vy = 0;
+        }
+      }
+    }
+    return true;
+  }
+
+  private applyCharge(alpha: number): void {
+    const ns = this.nodes;
+    for (let i = 0; i < ns.length; i++) {
+      const a = ns[i];
+      if (!a) continue;
+      for (let j = i + 1; j < ns.length; j++) {
+        const b = ns[j];
+        if (!b) continue;
+        let dx = b.x - a.x;
+        let dy = b.y - a.y;
+        let d2 = dx * dx + dy * dy;
+        if (d2 === 0) {
+          dx = (j - i) * 0.5;
+          dy = (i + 1) * 0.4;
+          d2 = dx * dx + dy * dy;
+        }
+        const dist = Math.sqrt(d2);
+        const force = (REPEL * alpha) / d2;
+        const ux = dx / dist;
+        const uy = dy / dist;
+        a.vx -= ux * force;
+        a.vy -= uy * force;
+        b.vx += ux * force;
+        b.vy += uy * force;
+      }
+    }
+  }
+
+  private applyLinks(alpha: number): void {
+    for (const link of this.links) {
+      const s = this.byId.get(link.source);
+      const t = this.byId.get(link.target);
+      if (!s || !t) continue;
+      let dx = t.x - s.x;
+      let dy = t.y - s.y;
+      let d2 = dx * dx + dy * dy;
+      if (d2 === 0) {
+        dx = 0.5;
+        dy = 0.5;
+        d2 = 0.5;
+      }
+      const dist = Math.sqrt(d2);
+      const k = ((dist - link.distance) / dist) * alpha * link.strength * LINK_K;
+      const mx = dx * k * 0.5;
+      const my = dy * k * 0.5;
+      s.vx += mx;
+      s.vy += my;
+      t.vx -= mx;
+      t.vy -= my;
+    }
+  }
+
+  private applyCenter(alpha: number): void {
+    const n = this.nodes.length;
+    if (!n) return;
+    // Recenter the whole cloud so its centroid sits at canvas center (this does
+    // NOT compress the layout — repulsion/links set the spread), plus a gentle
+    // positional pull so stray/isolated nodes don't park against the edge.
+    let cx = 0;
+    let cy = 0;
+    for (const nd of this.nodes) {
+      cx += nd.x;
+      cy += nd.y;
+    }
+    cx = (this.center.x - cx / n) * RECENTER;
+    cy = (this.center.y - cy / n) * RECENTER;
+    for (const nd of this.nodes) {
+      if (nd.fx == null) {
+        nd.x += cx;
+        nd.vx += (this.center.x - nd.x) * CENTER_STRENGTH * alpha;
+      }
+      if (nd.fy == null) {
+        nd.y += cy;
+        nd.vy += (this.center.y - nd.y) * CENTER_STRENGTH * alpha;
+      }
+    }
+  }
+
+  private applyCollide(): void {
+    const ns = this.nodes;
+    for (let i = 0; i < ns.length; i++) {
+      const a = ns[i];
+      if (!a) continue;
+      for (let j = i + 1; j < ns.length; j++) {
+        const b = ns[j];
+        if (!b) continue;
+        let dx = b.x - a.x;
+        let dy = b.y - a.y;
+        const d2 = dx * dx + dy * dy;
+        const min = a.radius + b.radius + COLLIDE_PAD;
+        if (d2 >= min * min) continue;
+        let dist = Math.sqrt(d2);
+        if (dist === 0) {
+          dx = j - i;
+          dy = i + 1;
+          dist = Math.sqrt(dx * dx + dy * dy) || 1;
+        }
+        const push = ((min - dist) / dist) * 0.5 * COLLIDE_STRENGTH;
+        const ox = dx * push;
+        const oy = dy * push;
+        if (a.fx == null) a.x -= ox;
+        if (a.fy == null) a.y -= oy;
+        if (b.fx == null) b.x += ox;
+        if (b.fy == null) b.y += oy;
+      }
+    }
+  }
+}

frontend/src/lib/graph.ts

@@ -8,3 +8,8 @@ export async function fetchPodGraph(podId: string): Promise<PodGraph> {
   if (!res.ok) throw new Error(`graph request failed: ${res.status}`);
   return res.json() as Promise<PodGraph>;
 }
+
+/** WebSocket URL for the live event bus — used to nudge the graph to refetch. */
+export function backendEventsUrl(): string {
+  return `${BACKEND_URL.replace(/^http/, 'ws')}/api/events`;
+}