memrust 0.6.1

Agent-native memory engine: hybrid retrieval (HNSW + BM25 + entity graph + recency) behind remember/recall/forget, with HTTP and MCP interfaces
Documentation 
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>memrust dashboard</title>
<script>
  // Apply the saved theme before first paint so there is no flash.
  try {
    var t = localStorage.getItem("memrust-theme");
    if (t) document.documentElement.setAttribute("data-theme", t);
  } catch (e) {}
</script>
<style>
  /* Light and dark are each *selected* against their own surface, not
     auto-inverted. Both signal palettes pass the categorical checks
     (lightness band, chroma floor, CVD separation, normal-vision floor).
     Two light slots sit under 3:1 contrast, which is why every signal track
     carries a visible name and numeric value — identity never rests on
     color alone. */
  :root {
    color-scheme: light;
    --page: #f5f5f3;
    --surface: #ffffff;
    --surface-2: #f1f0ed;
    --border: #e0dfda;
    --text: #16160f;
    --text-2: #52514e;
    --text-3: #7c7b74;
    --accent: #f97316;         /* brand fill (dark ink sits on top) */
    --accent-ink: #c2410c;     /* accent as *text*, contrast-safe on light */
    --accent-dim: #ea580c;
    --track: rgba(0, 0, 0, .09);
    --logo-ink: #2b3247;
    --sig-vector: #2a78d6;
    --sig-lexical: #eb6834;
    --sig-graph: #1baf7a;
    --sig-recency: #eda100;
    --good: #1baf7a;
    --bad: #d63b3a;
  }
  /* Dark steps for the dark surface (#1a1a19). */
  @media (prefers-color-scheme: dark) {
    :root:where(:not([data-theme="light"])) {
      color-scheme: dark;
      --page: #121312;
      --surface: #1a1a19;
      --surface-2: #222321;
      --border: #32332f;
      --text: #f2f1ec;
      --text-2: #b9b8ae;
      --text-3: #83827a;
      --accent: #f97316;
      --accent-ink: #fb923c;
      --accent-dim: #c2410c;
      --track: rgba(255, 255, 255, .09);
      --logo-ink: #c9cedb;
      --sig-vector: #3987e5;
      --sig-lexical: #d95926;
      --sig-graph: #199e70;
      --sig-recency: #c98500;
      --good: #199e70;
      --bad: #e66767;
    }
  }
  /* The explicit toggle wins over the OS setting, in both directions. */
  :root[data-theme="dark"] {
    color-scheme: dark;
    --page: #121312;
    --surface: #1a1a19;
    --surface-2: #222321;
    --border: #32332f;
    --text: #f2f1ec;
    --text-2: #b9b8ae;
    --text-3: #83827a;
    --accent: #f97316;
    --accent-ink: #fb923c;
    --accent-dim: #c2410c;
    --track: rgba(255, 255, 255, .09);
    --logo-ink: #c9cedb;
    --sig-vector: #3987e5;
    --sig-lexical: #d95926;
    --sig-graph: #199e70;
    --sig-recency: #c98500;
    --good: #199e70;
    --bad: #e66767;
  }
  * { box-sizing: border-box; }
  body {
    margin: 0; background: var(--page); color: var(--text);
    transition: background-color .15s ease, color .15s ease;
    font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  }
  a { color: var(--accent-ink); text-decoration: none; }
  header {
    display: flex; align-items: center; gap: 14px; padding: 14px 22px;
    border-bottom: 1px solid var(--border); background: var(--surface);
    position: sticky; top: 0; z-index: 5;
  }
  .logo { width: 30px; height: 30px; flex: none; }
  .brand b { font-size: 17px; letter-spacing: .2px; }
  .brand span { display: block; color: var(--text-3); font-size: 11.5px; margin-top: -2px; }
  .spacer { flex: 1; }
  button {
    background: var(--surface-2); color: var(--text); border: 1px solid var(--border);
    border-radius: 8px; padding: 7px 13px; font: inherit; font-size: 13px; cursor: pointer;
  }
  button:hover { border-color: var(--text-3); }
  button.primary { background: var(--accent); border-color: var(--accent); color: #1a1208; font-weight: 600; }
  button.primary:hover { background: #fb8a3c; }
  button.danger-ghost { color: var(--bad); padding: 3px 9px; font-size: 12px; }
  button.icon { padding: 6px 9px; line-height: 0; }
  button.icon svg { width: 17px; height: 17px; stroke: currentColor; fill: none;
    stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  /* Show the icon for the mode the click switches *to*. */
  .i-sun { display: none; }
  :root[data-theme="dark"] .i-sun { display: inline; }
  :root[data-theme="dark"] .i-moon { display: none; }
  @media (prefers-color-scheme: dark) {
    :root:where(:not([data-theme="light"])) .i-sun { display: inline; }
    :root:where(:not([data-theme="light"])) .i-moon { display: none; }
  }
  main { max-width: 1200px; margin: 0 auto; padding: 20px 22px 60px; }

  .tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 20px; }
  .tile { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
  .tile .v { font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums; }
  .tile .l { color: var(--text-3); font-size: 11.5px; text-transform: uppercase; letter-spacing: .5px; margin-top: 2px; }
  .tile .sub { color: var(--text-2); font-size: 12px; }

  .cols { display: grid; grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); gap: 16px; align-items: start; }
  @media (max-width: 900px) { .cols { grid-template-columns: 1fr; } }
  .card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 16px; }
  .card h2 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: .6px; color: var(--text-2); }

  .row { display: flex; gap: 8px; flex-wrap: wrap; }
  input, select, textarea {
    background: var(--page); color: var(--text); border: 1px solid var(--border);
    border-radius: 8px; padding: 7px 10px; font: inherit; font-size: 13px;
  }
  input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent-dim); }
  textarea { width: 100%; resize: vertical; }
  .grow { flex: 1; min-width: 160px; }

  .legend[hidden] { display: none; }
  .legend { display: flex; gap: 14px; flex-wrap: wrap; margin: 12px 0 4px; color: var(--text-2); font-size: 12px; }
  .legend i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 5px; vertical-align: -1px; }

  .hit, .memrow { border-top: 1px solid var(--border); padding: 12px 2px; }
  .hit-top { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
  .score { font-variant-numeric: tabular-nums; color: var(--accent-ink); font-weight: 650; }
  .chip {
    display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px;
    border: 1px solid var(--border); color: var(--text-2); background: var(--surface-2);
  }
  .chip.ent { cursor: pointer; }
  .chip.ent:hover { border-color: var(--accent); color: var(--text); }
  .meta { color: var(--text-3); font-size: 12px; }
  .text { margin: 6px 0; overflow-wrap: anywhere; }

  .signals { display: grid; grid-template-columns: repeat(4, minmax(90px, 150px)); gap: 10px; margin-top: 6px; }
  .sig .lab { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); font-variant-numeric: tabular-nums; }
  .track { height: 6px; border-radius: 3px; background: var(--track); margin-top: 3px; overflow: hidden; }
  .fill { height: 100%; border-radius: 3px; min-width: 0; }

  .empty { color: var(--text-3); padding: 14px 2px; }
  #toast {
    position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%);
    background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
    border-radius: 10px; padding: 9px 16px; font-size: 13px; opacity: 0; transition: opacity .25s; pointer-events: none;
  }
  #toast.show { opacity: 1; }
  .ents { display: flex; flex-wrap: wrap; gap: 7px; }
  .range-l { color: var(--text-3); font-size: 12px; }
</style>
</head>
<body>
<header>
  <svg class="logo" viewBox="0 0 48 48" fill="none" aria-hidden="true">
    <path d="M24 4 42 14v8L24 12 6 22v-8L24 4z" fill="#f97316"/>
    <rect x="12" y="22" width="24" height="7" rx="2" fill="var(--logo-ink)"/>
    <rect x="12" y="31" width="24" height="6" rx="2" fill="#f97316" opacity=".85"/>
    <rect x="12" y="39" width="24" height="5" rx="2" fill="var(--logo-ink)" opacity=".45"/>
  </svg>
  <div class="brand"><b>memrust</b><span>memory infrastructure for AI agents</span></div>
  <div class="spacer"></div>
  <button id="btn-theme" class="icon" title="Toggle light / dark theme" aria-label="Toggle light or dark theme">
    <svg class="i-moon" viewBox="0 0 24 24" aria-hidden="true"><path d="M21 12.8A9 9 0 1 1 11.2 3a7 7 0 0 0 9.8 9.8z"/></svg>
    <svg class="i-sun" viewBox="0 0 24 24" aria-hidden="true"><circle cx="12" cy="12" r="4.2"/><path d="M12 2.5v2M12 19.5v2M2.5 12h2M19.5 12h2M5.2 5.2l1.4 1.4M17.4 17.4l1.4 1.4M18.8 5.2l-1.4 1.4M6.6 17.4l-1.4 1.4"/></svg>
  </button>
  <button id="btn-lifecycle" title="Sweep expired memories and consolidate old episodic ones">Run lifecycle</button>
  <button id="btn-checkpoint" title="Persist index state and truncate the WAL">Checkpoint</button>
  <button id="btn-refresh" class="primary">Refresh</button>
</header>

<main>
  <div class="tiles" id="tiles"></div>

  <div class="cols">
    <div>
      <div class="card">
        <h2>Recall</h2>
        <div class="row">
          <input id="q" class="grow" placeholder="query — try an entity, an error code, or a question" autofocus>
          <select id="strategy" title="Signal weighting">
            <option value="balanced">balanced</option>
            <option value="semantic">semantic</option>
            <option value="lexical">lexical</option>
            <option value="recent">recent</option>
            <option value="relational">relational</option>
          </select>
          <select id="topk"><option>5</option><option selected>10</option><option>20</option></select>
          <button id="btn-search" class="primary">Search</button>
        </div>
        <div class="row" style="margin-top:8px">
          <input id="f-session" placeholder="session filter" style="width:150px">
          <input id="f-agent" placeholder="recall as agent" style="width:150px" title="Sees shared + unowned + this agent's private memories">
        </div>
        <div class="legend" id="legend" hidden>
          <span><i style="background:var(--sig-vector)"></i>vector</span>
          <span><i style="background:var(--sig-lexical)"></i>lexical</span>
          <span><i style="background:var(--sig-graph)"></i>graph</span>
          <span><i style="background:var(--sig-recency)"></i>recency</span>
        </div>
        <div id="results"></div>
      </div>

      <div class="card">
        <h2>Memories <span class="meta" id="mem-count"></span></h2>
        <div id="memories"></div>
        <div class="row" style="margin-top:10px"><button id="btn-more" hidden>Load more</button></div>
      </div>
    </div>

    <div>
      <div class="card">
        <h2>Remember</h2>
        <textarea id="new-text" rows="3" placeholder="what should the engine remember?"></textarea>
        <div class="row" style="margin-top:8px">
          <select id="new-kind" class="grow">
            <option>episodic</option><option>semantic</option><option>working</option>
            <option>reflection</option><option>tool_call</option><option>procedural</option>
          </select>
          <select id="new-vis" class="grow" title="private is only recallable by the owning agent">
            <option value="">visibility: auto</option><option>shared</option><option>private</option>
          </select>
        </div>
        <div class="row" style="margin-top:8px">
          <input id="new-tags" class="grow" placeholder="tags, comma separated">
        </div>
        <div class="row" style="margin-top:8px">
          <input id="new-session" class="grow" placeholder="session id">
          <input id="new-agent" class="grow" placeholder="agent id">
        </div>
        <div class="row" style="margin-top:8px; align-items:center">
          <span class="range-l">importance</span>
          <input id="new-imp" type="range" min="0" max="1" step="0.05" value="0.5" class="grow">
          <span class="range-l" id="imp-val">0.50</span>
        </div>
        <div class="row" style="margin-top:10px"><button id="btn-remember" class="primary grow">Remember</button></div>
      </div>

      <div class="card">
        <h2>Entities <span class="meta">click to explore</span></h2>
        <div class="ents" id="entities"><span class="empty">none yet</span></div>
      </div>
    </div>
  </div>
</main>
<div id="toast"></div>

<script>
const $ = (id) => document.getElementById(id);
const esc = (s) => String(s ?? "").replace(/[&<>"']/g, (c) =>
  ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" }[c]));
const fmt = (n, d = 4) => Number(n).toFixed(d);
let memOffset = 0;
const PAGE = 25;

function toast(msg, ok = true) {
  const t = $("toast");
  t.textContent = msg;
  t.style.borderColor = ok ? "var(--good)" : "var(--bad)";
  t.classList.add("show");
  clearTimeout(t._h);
  t._h = setTimeout(() => t.classList.remove("show"), 2600);
}

async function api(method, path, body) {
  const resp = await fetch(path, {
    method,
    headers: body ? { "content-type": "application/json" } : undefined,
    body: body ? JSON.stringify(body) : undefined,
  });
  if (!resp.ok) throw new Error(`${resp.status}: ${await resp.text()}`);
  return resp.json();
}

function ago(ms) {
  const s = Math.max(0, (Date.now() - ms) / 1000);
  if (s < 60) return `${s | 0}s ago`;
  if (s < 3600) return `${(s / 60) | 0}m ago`;
  if (s < 86400) return `${(s / 3600) | 0}h ago`;
  return `${(s / 86400) | 0}d ago`;
}

function recordMeta(r) {
  const bits = [`<span class="chip">${esc(r.kind)}</span>`];
  if (r.visibility === "private") bits.push(`<span class="chip">private</span>`);
  for (const t of r.tags ?? []) bits.push(`<span class="chip">#${esc(t)}</span>`);
  const m = [];
  if (r.session_id) m.push(`session ${esc(r.session_id)}`);
  if (r.agent_id) m.push(`agent ${esc(r.agent_id)}`);
  m.push(ago(r.created_at));
  bits.push(`<span class="meta">${m.join(" · ")}</span>`);
  return bits.join(" ");
}

// ---- stats tiles ----------------------------------------------------------
async function loadStats() {
  const { stats: s } = await api("GET", "/health");
  $("tiles").innerHTML = [
    { v: s.total_memories, l: "memories" },
    { v: s.vector_indexed, l: "vector indexed" },
    { v: s.lexical_indexed, l: "lexical indexed" },
    { v: s.entities, l: "graph entities" },
    { v: s.wal_tail_ops, l: "wal tail ops" },
    { v: `${s.vector_dim ?? s.embedding_dim}<span class="sub"> dim · ${s.quantized ? "SQ8" : "f32"}</span>`,
      l: s.vector_dim && s.vector_dim !== s.embedding_dim ? "vectors (byo)" : "embeddings" },
  ].map((t) => `<div class="tile"><div class="v">${t.v}</div><div class="l">${t.l}</div></div>`).join("");
}

// ---- recall ---------------------------------------------------------------
async function search() {
  const query = $("q").value.trim();
  if (!query) return;
  const body = {
    query,
    strategy: $("strategy").value,
    top_k: Number($("topk").value),
  };
  const session = $("f-session").value.trim();
  if (session) body.filter = { session_id: session };
  const agent = $("f-agent").value.trim();
  if (agent) body.as_agent = agent;

  const { hits } = await api("POST", "/v1/recall", body);
  $("legend").hidden = hits.length === 0;
  if (hits.length === 0) {
    $("results").innerHTML = `<div class="empty">no memories matched</div>`;
    return;
  }
  // Normalize each RRF-scaled signal to its max across this result set so
  // the tracks compare hits; recency is already absolute 0..1.
  const max = { vector: 0, lexical: 0, graph: 0 };
  for (const h of hits)
    for (const k of Object.keys(max)) max[k] = Math.max(max[k], h.signals[k]);
  const track = (name, value, scale) => `
    <div class="sig" title="${name} signal: ${fmt(value, 4)}">
      <div class="lab"><span>${name}</span><span>${fmt(value, name === "recency" ? 2 : 4)}</span></div>
      <div class="track"><div class="fill" style="width:${Math.round(scale * 100)}%;background:var(--sig-${name})"></div></div>
    </div>`;

  $("results").innerHTML = hits.map((h) => `
    <div class="hit">
      <div class="hit-top">
        <span class="score" title="fused retrieval score">${fmt(h.score)}</span>
        ${h.signals.rerank > 0 ? `<span class="chip" title="reranker relevance">rerank ${fmt(h.signals.rerank, 2)}</span>` : ""}
        ${recordMeta(h.record)}
        <span class="spacer"></span>
        <button class="danger-ghost" onclick="forget('${h.record.id}')">forget</button>
      </div>
      <div class="text">${esc(h.record.text)}</div>
      <div class="signals">
        ${track("vector", h.signals.vector, max.vector ? h.signals.vector / max.vector : 0)}
        ${track("lexical", h.signals.lexical, max.lexical ? h.signals.lexical / max.lexical : 0)}
        ${track("graph", h.signals.graph, max.graph ? h.signals.graph / max.graph : 0)}
        ${track("recency", h.signals.recency, h.signals.recency)}
      </div>
    </div>`).join("");
}

// ---- browse ---------------------------------------------------------------
async function loadMemories(reset = true) {
  if (reset) memOffset = 0;
  const { total, records } = await api("GET", `/v1/memories?offset=${memOffset}&limit=${PAGE}`);
  $("mem-count").textContent = `· ${total} live`;
  const rows = records.map((r) => `
    <div class="memrow">
      <div class="hit-top">
        ${recordMeta(r)}
        <span class="spacer"></span>
        <button class="danger-ghost" onclick="forget('${r.id}')">forget</button>
      </div>
      <div class="text">${esc(r.text)}</div>
    </div>`).join("");
  if (reset) $("memories").innerHTML = rows || `<div class="empty">nothing remembered yet — add a memory on the right</div>`;
  else $("memories").insertAdjacentHTML("beforeend", rows);
  memOffset += records.length;
  $("btn-more").hidden = memOffset >= total;
}

// ---- entities -------------------------------------------------------------
async function loadEntities() {
  const { entities } = await api("GET", "/v1/entities?limit=40");
  $("entities").innerHTML = entities.length
    ? entities.map((e) =>
        `<span class="chip ent" onclick="exploreEntity('${esc(e.name)}')" title="relational search">${esc(e.name)} <span class="meta">${e.count}</span></span>`).join("")
    : `<span class="empty">none yet</span>`;
}

function exploreEntity(name) {
  $("q").value = name;
  $("strategy").value = "relational";
  search().catch((e) => toast(e.message, false));
  window.scrollTo({ top: 0, behavior: "smooth" });
}

// ---- actions --------------------------------------------------------------
async function forget(id) {
  try {
    await api("POST", "/v1/forget", { id });
    toast("memory forgotten");
    refresh();
  } catch (e) { toast(e.message, false); }
}

async function remember() {
  const text = $("new-text").value.trim();
  if (!text) return toast("memory text is empty", false);
  const body = { text, kind: $("new-kind").value, importance: Number($("new-imp").value) };
  const tags = $("new-tags").value.split(",").map((t) => t.trim()).filter(Boolean);
  if (tags.length) body.tags = tags;
  if ($("new-session").value.trim()) body.session_id = $("new-session").value.trim();
  if ($("new-agent").value.trim()) body.agent_id = $("new-agent").value.trim();
  if ($("new-vis").value) body.visibility = $("new-vis").value;
  try {
    await api("POST", "/v1/remember", body);
    $("new-text").value = "";
    toast("remembered");
    refresh();
  } catch (e) { toast(e.message, false); }
}

function refresh() {
  loadStats().catch(() => {});
  loadMemories(true).catch(() => {});
  loadEntities().catch(() => {});
}

const THEME_KEY = "memrust-theme";
function currentlyDark() {
  const set = document.documentElement.getAttribute("data-theme");
  if (set) return set === "dark";
  return window.matchMedia("(prefers-color-scheme: dark)").matches;
}
$("btn-theme").onclick = () => {
  const next = currentlyDark() ? "light" : "dark";
  document.documentElement.setAttribute("data-theme", next);
  try { localStorage.setItem(THEME_KEY, next); } catch (e) {}
};

$("btn-search").onclick = () => search().catch((e) => toast(e.message, false));
$("q").addEventListener("keydown", (e) => { if (e.key === "Enter") $("btn-search").click(); });
$("btn-remember").onclick = remember;
$("btn-refresh").onclick = refresh;
$("btn-more").onclick = () => loadMemories(false).catch((e) => toast(e.message, false));
$("new-imp").oninput = () => { $("imp-val").textContent = Number($("new-imp").value).toFixed(2); };
$("btn-lifecycle").onclick = async () => {
  try {
    const { report } = await api("POST", "/v1/lifecycle/run");
    toast(`lifecycle: swept ${report.expired_swept}, consolidated ${report.batches_consolidated} batch(es)`);
    refresh();
  } catch (e) { toast(e.message, false); }
};
$("btn-checkpoint").onclick = async () => {
  try {
    await api("POST", "/v1/checkpoint");
    toast("checkpointed — WAL truncated");
    refresh();
  } catch (e) { toast(e.message, false); }
};

refresh();
// Shareable query URLs: /?q=...&strategy=...
const params = new URLSearchParams(location.search);
if (params.get("q")) {
  $("q").value = params.get("q");
  if (params.get("strategy")) $("strategy").value = params.get("strategy");
  search().catch((e) => toast(e.message, false));
}
</script>
</body>
</html>