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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>get-name · in-browser demo</title>
<style>
body{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;max-width:720px;margin:2rem auto;padding:0 1rem;color:#1f2328;line-height:1.5}
h1{font-size:1.4rem}
textarea{width:100%;box-sizing:border-box;min-height:4rem;font:inherit;padding:.6rem;border:1px solid #d0d7de;border-radius:8px}
button{font:inherit;padding:.5rem 1rem;border:0;border-radius:8px;background:#0969da;color:#fff;cursor:pointer}
button:disabled{background:#8bb3dd;cursor:wait}
pre{background:#f6f8fa;border:1px solid #d0d7de;border-radius:8px;padding:.8rem;overflow:auto;white-space:pre-wrap;word-break:break-word}
.ok{color:#1a7f37}.err{color:#cf222e}.muted{color:#57606a;font-size:.85rem}
</style>
</head>
<body>
<h1>get-name — extract the intended person's first name (in-browser)</h1>
<p class="muted">
Model: <a href="https://huggingface.co/Qrzysztof/get-name">Qrzysztof/get-name</a> ·
Built on <a href="https://huggingface.co/Cactus-Compute/needle2">cactus-needle</a>.
Loads the engine + tuned weights <em>directly from Hugging Face</em>. No server — everything runs in this tab.
</p>
<p><textarea id="q" placeholder='Type a sentence… e.g. Nice to meet you, Alex'>By the way, Alice, if you don't know, how old am I?</textarea></p>
<p><button id="go" onclick="run()" disabled>Extract name</button>
<span id="status" class="muted"></span></p>
<pre id="out" class="muted">waiting…</pre>
<script src="https://huggingface.co/Cactus-Compute/needle2/resolve/main/wasm/needle.js"></script>
<script>
const WASM_URL = "https://huggingface.co/Cactus-Compute/needle2/resolve/main/wasm/needle.wasm";
const CACT_URL = "https://huggingface.co/Qrzysztof/get-name/resolve/main/tuned.cact";
const SYSTEM = "You extract the given (first) name of the intended person. If the text has no intended person, do not call the tool.";
const TOOLS = [{ name: "extract_name", parameters: { type: "object", properties: { name: { type: "string" } }, required: ["name"] } }];
let mod = null;
const enc = s => { const b = new TextEncoder().encode(s + "\0"); const p = mod._malloc(b.length); mod.HEAPU8.set(b, p); return p; };
async function init() {
const status = document.getElementById("status");
const btn = document.getElementById("go");
status.textContent = "downloading engine + weights…"; btn.disabled = true;
const [wasm, cact] = await Promise.all([
fetch(WASM_URL).then(r => r.arrayBuffer()),
fetch(CACT_URL).then(r => r.arrayBuffer()),
]);
status.textContent = "compiling engine…";
mod = await createNeedle({ wasmBinary: wasm });
const p = mod._malloc(cact.byteLength);
mod.HEAPU8.set(new Uint8Array(cact), p);
if (mod._needle_load(p, BigInt(cact.byteLength)) !== 0) throw new Error("needle_load failed");
mod._free(p);
const sysP = enc(SYSTEM);
const toolsP = enc(JSON.stringify(TOOLS));
if (mod._needle_init(sysP, toolsP, 0) < 0) throw new Error("needle_init failed");
status.textContent = "ready ✓"; btn.disabled = false;
}
async function run() {
const q = document.getElementById("q").value.trim();
const out = document.getElementById("out");
const status = document.getElementById("status");
if (!q) return;
const btn = document.getElementById("go"); btn.disabled = true;
status.textContent = "generating…";
try {
await (mod ? Promise.resolve() : init());
const qP = enc(q);
const cap = 1 << 20, outP = mod._malloc(cap);
const rc = mod._needle_complete(qP, 512, outP, cap);
if (rc < 0) throw new Error("needle_complete returned " + rc);
// rc is NOT the output length: the engine writes a NUL-terminated string,
// so scan the whole buffer for the first NUL terminator.
const bytes = mod.HEAPU8.subarray(outP, outP + cap);
let end = bytes.indexOf(0); if (end < 0) end = cap;
const response = new TextDecoder().decode(bytes.subarray(0, end));
out.textContent = response;
out.className = "";
try {
const obj = JSON.parse(response);
const calls = obj.function_calls || [];
if (calls.length) {
status.innerHTML = `<span class="ok">intended person: <b>${calls[0].arguments.name}</b></span>`;
} else {
status.textContent = "no tool call (no intended person detected)";
}
} catch { status.textContent = "raw response above (unparseable JSON)."; }
mod._free(qP); mod._free(outP);
} catch (e) {
out.textContent = String(e);
out.className = "err";
status.textContent = "error";
}
btn.disabled = false;
}
init().catch(e => { document.getElementById("status").textContent = "error: " + e.message; });
</script>
<div class="muted"><p>Tips:</p>
<ul>
<li>Runs fully client-side (WASM ~325 KB, weights ~13.7 MB, ~150–200 MB memory measured in Node; browser may differ).</li>
<li>CORS: works from any <code>http(s)</code> page; for a local file open over <code>python3 -m http.server</code>.</li>
<li>Gives one answer per <code>complete()</code> call — for batches, call the engine fresh per text (see README).</li>
<li>Model card, training data &amp; API docs: <a href="https://huggingface.co/Qrzysztof/get-name">Qrzysztof/get-name</a>.</li>
</ul></div>
</body>
</html>