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1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 | // An environment Space, most often an OpenEnv server. Three sources, each named where it's used:
// live what its running server says now (/api/spaces/<id>/live: OpenAPI, /metadata, /schema, MCP tools, Task API)
// last seen that, kept from the last time it was seen running here (shown while it sleeps)
// declared what its repository's files say at one revision (/api/spaces/<id>/files: openenv.yaml, models.py,
// server/app.py, the environment's reward code, Dockerfile, pyproject), read without waking it
// The page: an Interface table (how an agent acts, what it sees, the reward, tasks, web app, episodes), then the
// playground (awake only), its app, tools, tasks, rewards, schemas, files, connecting, `openenv validate`'s criteria,
// and the README. Status, wake and restart sit beside it.
import { $, api, esc, md, ago, sk, emptyState, toast, fmt, spinner, storage, setMeta, ownerLink } from "./util.js";
import { icon } from "./icons.js";
import { AGENTS, agentHtml, agentName, chosenAgent, copyBtn, snippet } from "./connect.js";
import { getSession } from "./session.js";
import { schemaForm, readForm, wireForm } from "./schemaform.js";
import { value } from "./render.js";
import { fileViewer } from "./files.js";
import { supportPanel } from "./support.js";
import { taskContent } from "./space-task-view.js";
import { spaceMedia } from "./space-media.js";
const enc = (s) => s.split("/").map(encodeURIComponent).join("/");
const STAGE = {
RUNNING: ["Running", "ok"], SLEEPING: ["Asleep", "faint"], PAUSED: ["Paused", "faint"], STOPPED: ["Stopped", "faint"],
APP_STARTING: ["Starting", "live"], BUILDING: ["Building", "live"], RUNNING_BUILDING: ["Rebuilding", "live"], RUNNING_APP_STARTING: ["Restarting", "live"],
RUNTIME_ERROR: ["Runtime error", "err"], BUILD_ERROR: ["Build error", "err"], CONFIG_ERROR: ["Config error", "err"], NO_APP_FILE: ["No app file", "err"],
};
const stageOf = (x) => STAGE[x] || [String(x || "unknown").toLowerCase().replace(/_/g, " "), "faint"];
const STARTING = new Set(["APP_STARTING", "BUILDING", "RUNNING_BUILDING", "RUNNING_APP_STARTING"]);
const KIND = { harbor: "OpenEnv × Harbor", openenv: "OpenEnv", "nemo-gym": "NeMo Gym server", gymnasium: "Gymnasium HTTP server", ors: "ORS server", mcp: "MCP server", api: "HTTP API" };
const shortSplit = (n) => (String(n).includes("/") ? String(n).split("/").filter(Boolean).pop() : String(n));
const IMAGE = /((^|_)(image|img|frame|screenshot|pixels|png|jpe?g|picture|photo|render)s?(_?(b64|data|url|bytes))?$|base64|(^|_)b64$)/i;
const HIDDEN_OBS = new Set(["reward", "done", "metadata"]);
let page = null; // this page's state; unmount ends its playground session, its polling and its file viewer
export function unmount() {
if (!page) return;
clearTimeout(page.poll);
page.observer?.disconnect();
page.viewer?.destroy();
document.removeEventListener("keydown", page.onKey);
if (page.session) {
fetch(`/api/spaces/${enc(page.spec)}/play`, { method: "POST", keepalive: true, headers: { "Content-Type": "application/json" },
body: JSON.stringify({ op: "end", session: page.session }) }).catch(() => {});
}
page = null;
}
// ── where a fact comes from ──────────────────────────────────────────────────
const D = (me) => (me.F && !me.F.error ? me.F.declared || {} : {});
const seenOf = (me) => (me.L && !me.L.running ? me.L.last_seen || null : null);
const probeOf = (me) => (me.L?.running ? me.L : seenOf(me)); // the live answer, or the last one kept
const fileLink = (path, label) => `<a href="#" class="sp-fl" data-open-file="${esc(path)}" title="Open ${esc(path)} in Files">${esc(label || path.split("/").pop())}</a>`;
const SRC = {
live: () => `<span class="sp-src">live</span>`,
seen: (s) => `<span class="sp-src" title="${esc(new Date(s.checked_at * 1000).toLocaleString())}">last seen ${esc(ago(s.checked_at))}</span>`,
file: (me, path) => `<span class="sp-src">${path ? fileLink(path) : "its files"} @ <code>${esc(me.F.short)}</code></span>`,
session: () => `<span class="sp-src">this session</span>`,
};
const probeSrc = (me) => (me.L?.running ? SRC.live() : SRC.seen(seenOf(me)));
const codes = (xs, n = 8) => `${xs.slice(0, n).map((x) => `<code>${esc(x)}</code>`).join(" ")}${xs.length > n ? ` <span class="faint">+${fmt.format(xs.length - n)}</span>` : ""}`;
const line = (html, src = "") => `<div class="if-v"><span>${html}</span>${src}</div>`;
const NONE = (text) => `<span class="faint">${text}</span>`;
// the models.py class that is the Action (or Observation, State): the one server/app.py names, else the role's
// class with the most fields
function classOf(d, role) {
const cls = d.models?.classes || [];
const named = d.app?.[role];
return cls.find((c) => c.name === named && (c.fields || []).length) || cls.filter((c) => c.role === role && !c.kind)
.sort((a, b) => (b.fields || []).length - (a.fields || []).length)[0] || null;
}
const propsOf = (schema) => Object.entries(schema?.properties || {});
const isImage = (k, p = {}) => IMAGE.test(k) || /image/i.test(p.format || "") || p.contentEncoding === "base64" || /image/i.test(p.contentMediaType || "");
const fieldList = (rows) => rows.map(([k, img]) => `<code>${esc(k)}</code>${img ? ` <span class="faint xs">image</span>` : ""}`).join(" ");
const declaredTools = (d) => (d.environment?.tools?.length ? [d.environment.tools.map((t) => t.name), d.environment.path]
: d.manifest?.validation?.capabilities?.declared_tools?.length ? [d.manifest.validation.capabilities.declared_tools, d.manifest.path]
: d.manifest?.tools?.length ? [d.manifest.tools.map((t) => t.name), d.manifest.path] : [null, null]);
const declaredTasks = (d) => d.manifest?.tasks || null;
const taskCounts = (d) => d.manifest?.validation?.capabilities?.declared_task_count || {};
const reward = (d) => d.manifest?.validation?.reward || null;
const caps = (d) => d.manifest?.validation?.capabilities || {};
// ── the interface table ──────────────────────────────────────────────────────
function interfaceRows(me) {
const P = probeOf(me), d = D(me), F = me.F && !me.F.error ? me.F : null;
const rows = [];
// how the agent acts
const acts = [];
if (P?.mcp?.length) acts.push(line(`MCP tools: ${codes(P.mcp.map((t) => t.name))}`, probeSrc(me)));
else if (P?.schema?.action?.properties) acts.push(line(`Action fields: ${fieldList(propsOf(P.schema.action).filter(([k]) => k !== "metadata").map(([k]) => [k]))}`, probeSrc(me)));
else if (me.L?.running && me.L.api?.length) acts.push(line(`HTTP routes: ${codes(me.L.api.map((r) => `${r.method} ${r.path}`), 6)}`, SRC.live()));
if (!acts.length && F) {
const [tools, where] = declaredTools(d);
const A = classOf(d, "action");
if (tools?.length) acts.push(line(`MCP tools: ${codes(tools)}`, SRC.file(me, where)));
else if (d.app?.mcp) acts.push(line(`MCP tools (<code>${esc(d.app.action)}</code>)`, SRC.file(me, d.app.path)));
else if (A) acts.push(line(`<code>${esc(A.name)}</code>${(A.fields || []).length ? `: ${fieldList(A.fields.map((f) => [f.name]))}` : ""}`, SRC.file(me, d.models.path)));
else if (d.manifest?.legacy?.action) acts.push(line(`<code>${esc(d.manifest.legacy.action)}</code>`, SRC.file(me, d.manifest.path)));
}
rows.push(["Agent acts by", acts]);
// what it sees
const sees = [];
if (P?.schema?.observation?.properties) {
const obs = propsOf(P.schema.observation).filter(([k]) => !HIDDEN_OBS.has(k));
if (obs.length) sees.push(line(`${fieldList(obs.map(([k, p]) => [k, isImage(k, p)]))}`, probeSrc(me)));
}
if (!sees.length && F) {
const O = classOf(d, "observation");
if (O && (O.fields || []).length) sees.push(line(`<code>${esc(O.name)}</code>: ${fieldList(O.fields.filter((f) => !HIDDEN_OBS.has(f.name)).map((f) => [f.name, f.image]))}`, SRC.file(me, d.models.path)));
else if (d.app?.mcp) sees.push(line("tool results (MCP)", SRC.file(me, d.app.path)));
else if (d.manifest?.legacy?.observation) sees.push(line(`<code>${esc(d.manifest.legacy.observation)}</code>`, SRC.file(me, d.manifest.path)));
}
rows.push(["Agent sees", sees]);
// the reward
const rw = [];
if (me.rewards.length) {
const lo = Math.min(...me.rewards), hi = Math.max(...me.rewards);
rw.push(line(`observed ${lo === hi ? num(lo) : `${num(lo)} to ${num(hi)}`} over ${fmt.format(me.rewards.length)} step${me.rewards.length === 1 ? "" : "s"}`, SRC.session()));
}
if (P?.rewards) rw.push(line("every step returns one", probeSrc(me)));
if (P?.graders?.length) rw.push(line(`graded on ${codes(P.graders, 4)}`, probeSrc(me)));
if (F) {
const r = reward(d), c = caps(d), mp = d.manifest?.path;
if (r?.range) rw.push(line(`range ${esc(`[${r.range.map(num).join(", ")}]`)}`, SRC.file(me, mp)));
if (c.verifier?.kind) rw.push(line(`verifier: <code>${esc(c.verifier.kind)}</code>${c.verifier.entry ? ` ${fileLinkIf(me, c.verifier.entry, d)}` : ""}`, SRC.file(me, mp)));
if (c.llm_judged) rw.push(line(`LLM-judged${d.manifest.validation.judge?.model ? `: <code>${esc(d.manifest.validation.judge.model)}</code>` : ""}`, SRC.file(me, mp)));
const blocks = Object.keys(d.manifest?.blocks || {}).filter((k) => /reward|rubric|grader|scoring/.test(k));
if (blocks.length) rw.push(line(`${codes(blocks, 4)} in openenv.yaml`, SRC.file(me, mp)));
const e = d.environment;
if (e && !e.error) {
if (e.llm_judge) rw.push(line(`an LLM judges${e.llm_modules?.length ? ` (${codes(e.llm_modules, 3)})` : ""}`, SRC.file(me, e.path)));
if (e.rubric) rw.push(line("a Rubric scores it", SRC.file(me, e.path)));
if (!e.llm_judge && !e.rubric && (e.functions?.length || e.reward_files?.length)) rw.push(line(`in code: ${e.functions?.length ? codes(e.functions, 3) : (e.reward_files || []).map((p) => fileLink(p)).join(", ")}`, SRC.file(me, e.path)));
}
}
rows.push(["Reward", rw]);
// tasks
const tk = [];
const splits = P?.task_api?.splits || [];
if (splits.length) tk.push(line(splits.map((x) => `<code>${esc(shortSplit(x.name))}</code>${x.num_tasks != null ? ` ${fmt.format(x.num_tasks)}` : ""}`).join(" · "), probeSrc(me)));
else if (P?.task_api) tk.push(line("a Task API, with no splits listed", probeSrc(me)));
if (F && !tk.length) {
const counts = Object.entries(taskCounts(d)), list = declaredTasks(d);
if (counts.length) tk.push(line(counts.map(([k, n]) => `<code>${esc(k)}</code> ${fmt.format(n)}`).join(" · "), SRC.file(me, d.manifest.path)));
else if (list?.length) tk.push(line(`${fmt.format(list.length)} declared: ${codes(list.map((t) => t.id || t.name || "?"), 6)}`, SRC.file(me, d.manifest.path)));
}
rows.push(["Tasks", tk]);
// its web app
const web = [];
if (me.L?.running) web.push(line(me.L.ui ? `<a class="u" href="${esc(me.L.host + me.L.ui)}" target="_blank" rel="noopener"><code>${esc(me.L.ui)}</code></a>` : NONE("none"), SRC.live()));
else if (seenOf(me)) web.push(line(seenOf(me).ui ? `<code>${esc(seenOf(me).ui)}</code>` : NONE("none"), SRC.seen(seenOf(me))));
if (F && !me.L?.running) {
const df = d.dockerfile, card = d.card || {};
if (d.app?.gradio_builder) web.push(line(`a Gradio tab of its own${d.app.custom_tab_name ? `, <i>${esc(d.app.custom_tab_name)}</i>` : ""}`, SRC.file(me, d.app.path)));
else if ((d.app?.routes || []).some((r) => /^GET \/web\/?$/.test(r))) web.push(line("a page of its own at <code>/web</code>", SRC.file(me, d.app.path)));
if (df && df.web_interface != null) web.push(line(df.web_interface ? `OpenEnv's web interface at <code>${esc(card.base_path || "/web")}</code>` : "web interface off", SRC.file(me, df.path)));
}
rows.push(["Web app", web]);
// episodes
const ep = [];
const mode = P?.mode;
if (P && (P.openenv || P.framework === "openenv" || P.framework === "harbor")) {
ep.push(line(mode === "production" ? "MCP only: production mode, no reset, step or state" : "reset, step, state; one WebSocket per session", probeSrc(me)));
} else if (me.L?.running && me.L.framework) ep.push(line(esc(KIND[me.L.framework] || me.L.framework), SRC.live()));
if (F && d.app && !d.app.error) {
const bits = [d.app.max_concurrent_envs != null ? `up to ${esc(String(d.app.max_concurrent_envs))} at once` : null,
d.app.mode ? `mode <code>${esc(String(d.app.mode))}</code>` : null, !P && d.app.factory ? `<code>${esc(d.app.factory)}</code>` : null].filter(Boolean);
if (bits.length) ep.push(line(bits.join(", "), SRC.file(me, d.app.path)));
}
rows.push(["Episodes", ep]);
return rows;
}
const num = (x) => String(+Number(x).toFixed(4));
const fileLinkIf = (me, path, d) => (me.F.files.some((f) => f.path === path) ? fileLink(path) : (d.manifest?.path && me.F.files.some((f) => f.path === `${me.F.root}/${path}`) ? fileLink(`${me.F.root}/${path}`, path) : `<code>${esc(path)}</code>`));
function interfaceTable(me) {
if (!me.L && !me.F) return ifaceSkeleton();
const rows = interfaceRows(me);
const pending = !me.F || !me.L;
return `${supportPanel(me.L?.support)}<dl class="kv sp-if">${rows.map(([k, vals]) => `<dt>${esc(k)}</dt><dd>${vals.length ? vals.join("") : pending ? sk.line(40) : NONE(emptyFor(me, k))}</dd>`).join("")}</dl>
${me.F?.error ? `<p class="fine sp-note">${icon("alert", 12)} Couldn't read its files: ${esc(me.F.error)}</p>` : ""}`;
}
const emptyFor = (me, k) => (k === "Tasks" ? "none declared" : k === "Web app" ? "none declared" : !me.L?.running && !seenOf(me) ? "not declared; wake it to ask its server" : "none");
const ifaceSkeleton = () => `<dl class="kv sp-if">${["Agent acts by", "Agent sees", "Reward", "Tasks", "Web app", "Episodes"].map((k, i) => `<dt>${k}</dt><dd>${sk.line([62, 74, 48, 36, 30, 52][i])}</dd>`).join("")}</dl>`;
// ── sections ─────────────────────────────────────────────────────────────────
// an OpenEnv × Harbor server: what it can run, and the two ways to run its tasks
function harborSection(L) {
const c = L.harbor_caps;
if (!c) return `<p class="muted sm">It runs Harbor tasks as rollouts (<code>run_rollout</code>), but didn't say what it can run.</p>`;
const ok = c.sandboxes.filter((x) => x.available), validated = c.harnesses.filter((h) => h.status === "validated");
const hub = c.datasets.filter((d) => d.hub);
return `<dl class="kv sp-caps">
<dt>Model engine</dt><dd>${c.engine.url ? `its own${c.engine.model ? `: <code>${esc(c.engine.model)}</code>` : ""}` : `none of its own: each <code>run_rollout</code> call names one (<code>llm_url</code>, <code>model</code>, <code>api_key</code>)`}</dd>
<dt>Sandboxes</dt><dd>${ok.length ? ok.map((x) => `<code>${esc(x.name)}</code>`).join(" ") : `<span class="faint">none available</span>`}</dd>
<dt>Agents</dt><dd>${validated.map((h) => `<code>${esc(h.name)}</code>`).join(" ")}${c.harnesses.length > validated.length ? ` <span class="faint">and ${c.harnesses.length - validated.length} more, not validated</span>` : ""}</dd>
<dt>Serves</dt><dd>${c.datasets.map((d) => `<code>${esc(d.hub || d.name)}</code>${d.num_tasks != null ? ` <span class="faint">${fmt.format(d.num_tasks)} tasks</span>` : ""}`).join("<br>")}</dd></dl>
<div class="sp-ways">
<div class="sp-way"><b>${icon("user", 14)}On your account</b><p>${hub.length ? "Open the dataset in the explorer: every task runs on an HF Sandbox billed to you, with the agent and model you pick." : "Its datasets are local to the Space, so they can't be opened in the explorer."}</p>
${hub.map((d) => `<a class="btn sm" href="/d/${enc(d.hub)}">${icon("database", 13)}${esc(d.hub)}</a>`).join("")}</div>
<div class="sp-way"><b>${icon("box", 14)}On this Space</b><p>${L.ui ? "Its own app runs rollouts with its sandboxes; sign in there." : ""} ${c.engine.url ? "Or call <code>run_rollout</code> from the playground, on its operator's engine." : "Calling <code>run_rollout</code> needs a model engine, which this explorer never fills in with your token."}</p>
${L.ui ? `<button class="btn sm" type="button" data-jump-to="app">${icon("window", 13)}Its app</button>` : ""}${c.engine.url ? `<button class="link sm" type="button" data-try="run_rollout">Try run_rollout</button>` : ""}</div>
</div>`;
}
function appSection(me) {
const { s, L } = me;
if (!L) return sk.box(160);
if (L.running && L.ui) {
const src = L.host + L.ui;
if (!me.appOpen) {
return `<div class="sp-app-off"><span class="dot" style="--dc:var(--ok)"></span><code>${esc(src.replace("https://", ""))}</code><span class="grow"></span>
<button class="btn sm" type="button" data-app="load">${icon("window", 13)}Open it here</button>
<a class="btn sm ghost" href="${esc(src)}" target="_blank" rel="noopener">${icon("external", 13)}New tab</a></div>`;
}
return `<div class="sp-app"><div class="sp-app-bar"><span class="dot" style="--dc:var(--ok)"></span><code>${esc(src.replace("https://", ""))}</code><span class="grow"></span>
<button class="icon-btn sm" type="button" data-app="reload" title="Reload">${icon("refresh", 15)}</button>
<button class="icon-btn sm" type="button" data-app="full" title="Full view (Esc to close)">${icon("maximize", 15)}</button>
<a class="icon-btn sm" href="${esc(src)}" target="_blank" rel="noopener" title="Open in a new tab">${icon("external", 15)}</a></div>
<div class="sp-app-frame"><div class="sp-app-load">${spinner()}<span>Loading its app…</span></div>
<iframe class="space-app" src="${esc(src)}" title="${esc(s.id)} app" allow="clipboard-write; fullscreen"
sandbox="allow-scripts allow-same-origin allow-forms allow-popups allow-downloads" referrerpolicy="no-referrer"></iframe></div></div>`;
}
if (L.running) return `<p class="muted sm">This server has no web page of its own${L.base_path ? ` at <code>${esc(L.base_path)}</code>` : ""}, <code>/web</code> or <code>/</code>. The playground calls its API.</p>`;
const thumb = `<img class="sp-shot" alt="The Hub's picture of ${esc(s.id)}" loading="lazy" onerror="this.remove()" src="https://cdn-thumbnails.huggingface.co/social-thumbnails/spaces/${enc(s.id)}.png">`;
return `${thumb}<p class="muted sm sp-after">${STARTING.has(L.stage) ? "Starting: its app opens here when it's up." : "Its app opens here when the Space is running."}</p>`;
}
// what the playground can do here: call its MCP tools, take actions (reset/step), or call its own HTTP routes
const modesOf = (L) => [...(L.mcp?.length ? ["tools"] : []), ...(L.step_api && !L.mcp?.length ? ["action"] : []), ...(L.api?.length ? ["routes"] : [])];
const MODE = { tools: "Its tools", action: "Actions", routes: "Its routes" };
function playSection(me) {
const L = me.L;
if (!L) return sk.box(160);
if (L.running) return playground(L);
if (STARTING.has(L.stage)) return `<p class="muted sm sp-wait-line">${spinner("xs")}Starting. The playground opens when it's running.</p>`;
if (L.stage === "SLEEPING") {
return `<div class="sp-asleep"><p class="muted sm">Asleep. Wake it to play an episode on it; it takes a minute or two.</p>
<button class="btn primary" type="button" data-act="wake">${icon("power", 14)}Wake it</button><div class="sp-msg" data-msg="wake"></div></div>`;
}
return `<p class="muted sm">It isn't running (${esc(stageOf(L.stage)[0].toLowerCase())}), so there is nothing to play. Its status, beside, says what can be done.</p>`;
}
function playground(L) {
const modes = modesOf(L);
if (!modes.length) return `<p class="muted sm">This Space has no API to play with: no <code>/reset</code> and <code>/step</code>, no MCP tools, no routes in an <code>/openapi.json</code>.</p>`;
const tools = L.mcp || [];
const splits = L.task_api?.splits || [];
const resetOpts = `<details class="pg-opts"><summary class="disclose">${icon("chevronRight", 14, "chev")}Reset options</summary>
<div class="pg-opts-b">${splits.length ? `<div class="pg-row"><label class="field"><span>Task split</span><select class="input" id="pg-split"><option value="">its choice</option>${splits.map((x) =>
`<option value="${esc(x.name)}">${esc(shortSplit(x.name))}${x.num_tasks != null ? ` · ${fmt.format(x.num_tasks)}` : ""}</option>`).join("")}</select></label>
<label class="field"><span>Task index</span><input class="input mono" id="pg-index" type="number" min="0" placeholder="random"></label></div>` : ""}
<label class="field"><span>Other options <em>JSON, as this server takes them, e.g. {"seed": 1}</em></span><textarea class="input mono" id="pg-params" rows="2" spellcheck="false" placeholder="{}"></textarea></label></div></details>`;
const pane = {
tools: () => `<label class="field"><span>Tool</span><select class="input" id="pg-tool">${tools.map((t) => `<option value="${esc(t.name)}">${esc(t.name)}</option>`).join("")}</select></label>
<p class="pg-desc" id="pg-desc"></p><div id="pg-form"></div><div id="pg-warn"></div>
<button class="btn primary block" type="button" id="pg-call">${icon("send", 14)}Call</button>`,
action: () => `<div class="sec-label">Action</div><div id="pg-form">${schemaForm(L.schema?.action || {}, { prefix: "pga" })}</div>
<button class="btn primary block" type="button" id="pg-step">${icon("play", 14)}Step</button>`,
routes: () => `<label class="field"><span>Route</span><select class="input mono" id="pg-route">${L.api.map((r, i) => `<option value="${i}">${esc(r.method)} ${esc(r.path)}</option>`).join("")}</select></label>
<p class="pg-desc" id="pg-rdesc"></p><div id="pg-rparams"></div><div id="pg-query"></div><div id="pg-rform"></div>
<button class="btn primary block" type="button" id="pg-send">${icon("send", 14)}Send</button>`,
};
return `<div class="pg">
<div class="pg-ctl">
<div class="pg-sess" id="pg-sess"></div>
${L.openenv && L.step_api ? `${resetOpts}<button class="btn block" type="button" id="pg-reset">${icon("refresh", 14)}New episode</button>` : ""}
${modes.length > 1 ? `<span class="seg pg-modes" role="tablist">${modes.map((m, i) => `<button type="button" role="tab" data-mode="${m}" aria-pressed="${i === 0}">${MODE[m]}</button>`).join("")}</span>` : ""}
${modes.map((m, i) => `<div class="pg-act" data-pane="${m}" ${i ? "hidden" : ""}>${pane[m]()}</div>`).join("")}
<p class="fine">Requests go to the Space itself. ${L.openenv ? "An OpenEnv WebSocket keeps your episode together." : L.api?.length ? "HTTP cookies are isolated per explorer session; the server controls episode state." : "Tool state depends on the server's MCP implementation."} Sessions end after 10 idle minutes. The Space's owner pays for its hardware.</p>
</div>
<div class="pg-log" id="pg-log" aria-live="polite"></div>
</div>`;
}
function tasksSection(me) {
const P = probeOf(me), d = D(me);
if (me.L?.running && me.L.task_api) return taskBrowser(me);
const out = [];
if (P?.task_api && !P.task_api.splits?.length) out.push(`<div class="sp-sub"><b>Its Task API lists no splits</b>${probeSrc(me)}</div>`);
const splits = P?.task_api?.splits || [];
if (splits.length) {
out.push(`<div class="sp-sub"><b>Its Task API</b>${probeSrc(me)}</div>
<div class="tbl"><table><thead><tr><th>Split</th><th>Tasks</th><th></th></tr></thead><tbody>${splits.map((x) =>
`<tr><td><code>${esc(x.name)}</code></td><td class="num">${x.num_tasks != null ? fmt.format(x.num_tasks) : "–"}</td><td class="faint">${x.default ? "default" : ""}</td></tr>`).join("")}</tbody></table></div>
<p class="fine sp-after">Wake it to browse them.</p>`);
}
if (!me.F) return out.join("") || sk.lines(80, 60, 70);
const counts = Object.entries(taskCounts(d)), list = declaredTasks(d);
if (counts.length) {
out.push(`<div class="sp-sub"><b>Declared counts</b>${SRC.file(me, d.manifest.path)}</div>
<div class="tbl"><table><thead><tr><th>Split</th><th>Tasks</th></tr></thead><tbody>${counts.map(([k, n]) => `<tr><td><code>${esc(k)}</code></td><td class="num">${fmt.format(n)}</td></tr>`).join("")}</tbody></table></div>`);
}
if (list?.length) {
const cols = ["id", "name", "difficulty", "max_steps", "description"].filter((k) => list.some((t) => t[k] != null && t[k] !== ""));
out.push(`<div class="sp-sub"><b>Declared tasks</b>${SRC.file(me, d.manifest.path)}</div>
<div class="sp-ft sp-grid"><table><thead><tr>${cols.map((k) => `<th>${esc(k.replace("_", " "))}</th>`).join("")}</tr></thead><tbody>${list.slice(0, 200).map((t) =>
`<tr>${cols.map((k) => `<td class="${k === "description" ? "ft-d" : k === "id" ? "ft-n" : "ft-s"}">${t[k] == null ? "" : k === "id" ? `<code>${esc(String(t[k]))}</code>` : k === "description" ? inl(typeof t[k] === "object" ? JSON.stringify(t[k]) : String(t[k])) : esc(typeof t[k] === "object" ? JSON.stringify(t[k]) : String(t[k]))}</td>`).join("")}</tr>`).join("")}</tbody></table></div>
${d.manifest.withheld?.length ? `<p class="fine">${icon("shield", 12)} Left out, as they may hold the answer: ${d.manifest.withheld.map((k) => `<code>${esc(k)}</code>`).join(", ")}.</p>` : ""}`);
}
return out.join("") || `<p class="muted sm">${me.L?.running ? "No Task API, and no tasks declared in its files." : "No tasks declared in its files."}${!me.L?.running && !seenOf(me) ? " Its server may serve some: wake it to ask." : ""}</p>`;
}
function taskCatalog(me) {
const api = me.L.task_api, environments = api.environments || [api];
const selected = environments.find((e) => e.env === me.taskPage.env) || environments[0];
me.taskPage.env = selected.env;
return selected;
}
function taskBrowser(me) {
const { splits } = taskCatalog(me), envs = me.L.task_api.environments || [me.L.task_api];
if (!splits.some((s) => s.name === me.taskPage.split)) me.taskPage.split = (splits.find((s) => s.default) || splits[0])?.name || "";
return `<div class="tk">
${envs.length > 1 ? `<label class="field"><span>Environment</span><select class="input" id="tk-env">${envs.map((e) => `<option value="${esc(e.env)}" ${e.env === me.taskPage.env ? "selected" : ""}>${esc(e.env)}</option>`).join("")}</select></label>` : ""}
<p class="fine">Choose a split, then a task to inspect its inputs. Counts come from this Space's Task API.</p>
<div class="tk-bar"><span class="seg" id="tk-split">${splits.map((x) => `<button type="button" data-split="${esc(x.name)}" aria-pressed="${x.name === me.taskPage.split}" title="${esc(x.name)}">${esc(shortSplit(x.name))}${x.num_tasks != null ? `<span>${fmt.format(x.num_tasks)}</span>` : ""}</button>`).join("")}</span>
<span class="grow"></span><span class="tk-pager"><button class="icon-btn sm" type="button" id="tk-prev" aria-label="Previous page">${icon("chevronRight", 15, "flip")}</button><span id="tk-range"></span><button class="icon-btn sm" type="button" id="tk-next" aria-label="Next page">${icon("chevronRight", 15)}</button></span></div>
<div id="tk-table">${sk.lines(90, 90, 90, 90)}</div>
<div class="tk-detail" id="tk-detail" hidden></div>
</div>`;
}
function toolsSection(me) {
const P = probeOf(me), d = D(me);
if (P?.mcp?.length) {
const own = new Set(P.mcp.map((t) => t.name));
const extra = (P.bridge_tools || []).filter((t) => !own.has(t.name));
return `${me.L?.running ? "" : `<div class="sp-sub"><b>${fmt.format(P.mcp.length)} tools</b>${probeSrc(me)}</div>`}${toolsRef(P.mcp, !!me.L?.running)}
${extra.length ? `<div class="sec-label">Also available through the explorer's bridge</div>${toolsRef(extra, false)}` : ""}`;
}
if (!me.F && !P) return sk.lines(70, 50, 60);
const e = d.environment;
if (e?.tools?.length) {
return `<div class="sp-sub"><b>Registered in its code</b>${SRC.file(me, e.path)}</div>
${fieldTable(e.tools.map((t) => ({ name: t.name, typeHtml: t.params.length ? `<span class="ft-enum">${t.params.map((p) => `<code>${esc(p)}</code>`).join("")}</span>` : NONE("none"), desc: t.description || "" })), { head: ["Tool", "Parameters", "What it does"] })}
${me.L?.running ? "" : `<p class="fine sp-after">The ones a running server offers can depend on how it's configured.</p>`}`;
}
const [tools, where] = declaredTools(d);
if (tools?.length) return `<div class="sp-sub"><b>Declared</b>${SRC.file(me, where)}</div><p class="sm">${codes(tools, 40)}</p>`;
if (P?.bridge_tools?.length) { // a reset/step server: its tools are its episode calls, with its own action's fields
const [org, name] = me.spec.split("/");
return `<div class="sp-sub"><b>${fmt.format(P.bridge_tools.length)} tools, through ${P.openenv ? "reset and step" : "its HTTP API"}</b>${SRC.live()}</div>
<p class="fine">${P.openenv ? "The bridge exposes reset, step and state with the environment's action schema." : "The bridge exposes the server's published routes. Path parameters, query parameters and body have separate inputs."} These are the available tools
(<code>/mcp/${esc(org)}/${esc(name)}</code>, under Connect); the playground calls the same ones.</p>
${toolsRef(P.bridge_tools, false)}`;
}
if (me.L?.running || P) return `<p class="muted sm">No MCP tools of its own${(P?.openenv || P?.step_api) ? ": an agent acts through reset and step (over MCP, the bridge offers those as tools)" : ""}.</p>`;
const A = classOf(d, "action");
if (A) return `<p class="muted sm">No MCP tools declared: an agent acts through reset and step, with <code>${esc(A.name)}</code>. ${SRC.file(me, d.models.path)}</p>`;
return `<p class="muted sm">None declared in its files.${me.F ? " Wake it to ask its server." : ""}</p>`;
}
function toolsRef(tools, tryable) {
return `<div class="mcp-tools">${tools.map((t) => {
const props = Object.entries(t.inputSchema?.properties || {});
return `<details class="mcp-tool"><summary>${icon("chevronRight", 13, "chev")}<code>${esc(t.name)}</code>
${props.length ? `<span class="faint xs">(${props.map(([k]) => esc(k)).join(", ")})</span>` : ""}<span class="d">${esc((t.description || t.title || "").split("\n")[0])}</span>
${tryable ? `<button class="link sm" type="button" data-try="${esc(t.name)}">Try it</button>` : ""}</summary>
<div class="mcp-body">${t.description && t.description.includes("\n") ? docHtml(t.description, 1500) : ""}
${props.length ? fieldTable(schemaRows(t.inputSchema, t.inputSchema.$defs || {}, { images: false }), { head: ["Parameter", "Type", "What it is"] }) : `<p class="muted sm">${t.inputSchema ? "No parameters." : "The server doesn't list its parameters."}</p>`}</div></details>`;
}).join("")}</div>`;
}
function rewardsSection(me) {
const P = probeOf(me), d = D(me);
if (!me.F && !me.L) return sk.lines(70, 50, 60);
const rows = [];
if (me.rewards.length) rows.push(["This session", `${me.rewards.slice(-12).map(num).join(", ")}${me.rewards.length > 12 ? " …" : ""} ${SRC.session()}`]);
if (P?.rewards) rows.push(["Each step", `its observation carries <code>reward</code> ${probeSrc(me)}`]);
if (P?.graders?.length) rows.push(["Graded on", `${codes(P.graders)} ${probeSrc(me)}`]);
if (me.F && !me.F.error) {
const v = d.manifest?.validation, mp = d.manifest?.path;
if (v?.reward) {
const r = v.reward;
if (r.range) rows.push(["Range", `<code>[${r.range.map(num).join(", ")}]</code> ${SRC.file(me, mp)}`]);
const tol = ["oracle_tolerance", "floor_margin", "variance_tolerance"].filter((k) => r[k] != null);
if (tol.length) rows.push(["Tolerances", `${tol.map((k) => `${esc(k.replace("_", " "))} <code>${num(r[k])}</code>`).join(", ")} ${SRC.file(me, mp)}`]);
}
const c = v?.capabilities;
if (c?.verifier?.kind) rows.push(["Verifier", `<code>${esc(c.verifier.kind)}</code>${c.verifier.entry ? ` ${fileLinkIf(me, c.verifier.entry, d)}` : ""} ${SRC.file(me, mp)}`]);
if (c && "llm_judged" in c) rows.push(["LLM-judged", `${c.llm_judged ? "yes" : "no"}${v.judge?.model ? `: <code>${esc(v.judge.model)}</code>${v.judge.version ? ` <span class="faint">${esc(v.judge.version)}</span>` : ""}` : ""} ${SRC.file(me, mp)}`]);
if (c?.oracle) rows.push(["Oracle", `${esc(c.oracle.form || "")} ${c.oracle.location ? fileLinkIf(me, c.oracle.location, d) : ""} ${SRC.file(me, mp)}`]);
const e = d.environment;
if (e && !e.error) {
const files = [e.path, ...(e.reward_files || [])];
rows.push(["Its code", `${files.map((p) => fileLink(p, p)).join(", ")}${e.functions?.length ? `<div class="sp-fns">${codes(e.functions, 12)}</div>` : ""}`]);
if (e.llm_judge) rows.push(["An LLM judges", `${e.llm_modules?.length ? codes(e.llm_modules) : "yes"} ${SRC.file(me, e.path)}`]);
if (e.rubric) rows.push(["Rubric", `an OpenEnv Rubric ${SRC.file(me, e.path)}`]);
}
}
const blocks = Object.entries(D(me).manifest?.blocks || {}).filter(([k]) => /reward|rubric|grader|scoring/.test(k));
const yaml = blocks.length ? `<div class="sp-sub"><b>In openenv.yaml</b>${SRC.file(me, d.manifest.path)}</div>${blocks.map(([k, x]) =>
`<div class="sp-block"><code class="sp-bk">${esc(k)}</code>${isObj(x) ? fieldsView(x, 1) : `<div class="pgv-val">${value(x, k)}</div>`}</div>`).join("")}` : "";
if (!rows.length && !yaml) return `<p class="muted sm">${me.F ? "Nothing about its reward is declared in its files." : ""}${!me.L?.running ? " Wake it and play an episode to see what it gives." : " Play an episode to see what it gives."}</p>`;
return `${rows.length ? `<dl class="kv sp-rw">${rows.map(([k, v]) => `<dt>${esc(k)}</dt><dd>${v}</dd>`).join("")}</dl>` : ""}${yaml}`;
}
// ── field tables: /schema, models.py classes and tool parameters, drawn the same way ──
// A field's name and type never break inside a word: unions break at `|`, enum values wrap as a list, and at phone
// width each field stacks into one block.
const inl = (s) => esc(s).replace(/`([^`\n]+)`/g, "<code>$1</code>");
const DOC_SECTION = /(^|\n)[ \t]*(Attributes|Args|Arguments|Parameters|Fields|Returns|Raises|Examples?|Notes?)[ \t]*:[ \t]*(\n|$)/;
// a docstring's own prose (its Attributes/Args lists repeat what the table says), rendered as Markdown
function docHtml(text, max = 700) {
if (!text) return "";
let t = String(text);
const cut = t.search(DOC_SECTION);
if (cut >= 0) t = t.slice(0, cut);
t = t.replace(/^[ \t]+/gm, "").replace(/\[`~?([^`\]]+)`\]/g, (_, x) => `\`${x.split(".").pop()}\``).trim();
if (!t) return "";
if (t.length > max) t = t.slice(0, max).replace(/\s+\S*$/, "") + " …";
return `<div class="prose sp-doc">${md(t)}</div>`;
}
function typeHtml(t) {
const parts = String(t || "any").split(/\s*\|\s*/).filter(Boolean);
return `<span class="ft-ty">${parts.map((x) => `<code>${esc(x)}</code>`).join(`<span class="ft-or">|</span>`)}</span>`;
}
const enumHtml = (vals) => (vals?.length ? `<span class="ft-enum">${vals.slice(0, 40).map((x) => `<code>${esc(typeof x === "string" ? x : JSON.stringify(x))}</code>`).join("")}${vals.length > 40 ? `<span class="faint xs">+${vals.length - 40}</span>` : ""}</span>` : "");
// a JSON-schema property as {type, enumVals, nested}: $refs into $defs followed, unions joined, arrays named by item
function propType(p, defs, depth = 0) {
if (!p || typeof p !== "object" || depth > 4) return { type: "any" };
if (p.$ref) {
const name = String(p.$ref).split("/").pop(), d = defs?.[name];
if (d?.enum) return { type: name, enumVals: d.enum };
if (d?.properties) return { type: name, nested: d };
return { type: name };
}
if (p.enum) return { type: p.type || "enum", enumVals: p.enum };
if (p.const !== undefined) return { type: JSON.stringify(p.const) };
const alts = p.anyOf || p.oneOf;
if (alts) {
const parts = alts.map((x) => propType(x, defs, depth + 1));
return { type: parts.map((x) => x.type).join(" | "), enumVals: parts.find((x) => x.enumVals)?.enumVals, nested: parts.find((x) => x.nested)?.nested };
}
if (p.type === "array") { const it = propType(p.items, defs, depth + 1); return { type: `list[${it.type}]`, enumVals: it.enumVals, nested: it.nested }; }
if (p.type === "object" && p.properties) return { type: p.title || "object", nested: p };
if (p.type === "object" && p.additionalProperties && typeof p.additionalProperties === "object") return { type: `dict[str, ${propType(p.additionalProperties, defs, depth + 1).type}]` };
return { type: Array.isArray(p.type) ? p.type.join(" | ") : p.type || "any" };
}
function schemaRows(schema, defs, { images = true, skip = [] } = {}) {
const req = new Set(schema?.required || []);
return Object.entries(schema?.properties || {}).filter(([k]) => !skip.includes(k)).map(([k, p]) => {
const t = propType(p, defs);
return { name: k, required: req.has(k), image: images && isImage(k, p), type: t.type, enumVals: t.enumVals, desc: p.description || "",
def: p.default !== undefined && p.default !== null ? JSON.stringify(p.default) : null,
nested: t.nested ? schemaRows(t.nested, defs, { images }) : null };
});
}
function fieldTable(rows, { head = ["Field", "Type", "What it is"], depth = 0 } = {}) {
if (!rows.length) return `<p class="muted sm">No fields.</p>`;
return `<div class="sp-ft${depth ? " sub" : ""}"><table><thead><tr>${head.map((h) => `<th>${esc(h)}</th>`).join("")}</tr></thead><tbody>${rows.map((r) =>
`<tr><td class="ft-n"><code>${esc(r.name)}</code>${r.required ? `<span class="ft-tag">required</span>` : ""}${r.image ? `<span class="ft-tag">image</span>` : ""}</td>
<td class="ft-t">${r.typeHtml || typeHtml(r.type)}${enumHtml(r.enumVals)}${r.limits?.length ? `<span class="ft-tag">${esc(r.limits.join(", "))}</span>` : ""}</td>
<td class="ft-d">${r.desc ? inl(r.desc) : ""}${r.def != null ? `<span class="ft-def">default <code>${esc(String(r.def).slice(0, 80))}</code></span>` : ""}</td></tr>
${r.nested?.length && depth < 2 ? `<tr class="ft-sub"><td colspan="3"><details><summary>${icon("chevronRight", 13, "chev")}<code>${esc(r.name)}</code>: ${fmt.format(r.nested.length)} field${r.nested.length === 1 ? "" : "s"}</summary>${fieldTable(r.nested, { depth: depth + 1 })}</details></td></tr>` : ""}`).join("")}</tbody></table></div>`;
}
function schemaTable(title, schema) {
if (!schema || !schema.properties) return "";
const defs = schema.$defs || schema.definitions || {};
return `<div class="sec-label">${esc(title)}${schema.title ? ` <code>${esc(schema.title)}</code>` : ""}</div>
${docHtml(schema.description)}${fieldTable(schemaRows(schema, defs, { images: title !== "Action" }))}`;
}
// models.py's `Literal["a", "b"]` as enum values
function literalVals(t) {
const m = String(t || "").match(/Literal\[(.*?)\]/);
if (!m) return null;
return (m[1].match(/"[^"]*"|'[^']*'|[^,\s][^,]*/g) || []).map((x) => x.trim().replace(/^["']|["']$/g, ""));
}
function classTable(title, c) {
const rows = (c.fields || []).map((f) => {
const lit = literalVals(f.type);
return { name: f.name, required: f.required, image: f.image, type: lit ? f.type.replace(/Literal\[.*?\]/, "Literal") : f.type, enumVals: lit,
limits: f.limits, desc: f.description || "", def: f.default ?? null };
});
return `<div class="sec-label">${esc(title)} <code>${esc(c.name)}</code>${c.bases?.length ? ` <span class="faint xs">(${esc(c.bases.join(", "))})</span>` : ""}</div>
${docHtml(c.doc)}${rows.length ? fieldTable(rows) : `<p class="muted sm" style="margin-bottom:16px">No fields of its own.</p>`}`;
}
function schemasSection(me) {
const P = probeOf(me), d = D(me);
const schema = P?.schema;
if (schema && (schema.action || schema.observation)) {
return `<div class="sp-sub"><b>From its <code>/schema</code></b>${probeSrc(me)}</div>${schemaTable("Action", schema.action) + schemaTable("Observation", schema.observation) + schemaTable("State", schema.state)}`;
}
if (P?.api?.length) return `<div class="sp-sub"><b>From its OpenAPI</b>${probeSrc(me)}</div>` + P.api.map((r) =>
`<details><summary class="disclose"><code>${esc(r.method)} ${esc(r.path)}</code></summary>${r.summary ? `<p class="fine">${esc(r.summary)}</p>` : ""}
${r.query_schema?.properties && Object.keys(r.query_schema.properties).length ? schemaTable("Query parameters", r.query_schema) : ""}
${r.schema ? (schemaTable("Request body", r.schema) || snippet(JSON.stringify(r.schema, null, 2))) : '<p class="fine">No request body schema published.</p>'}</details>`).join("");
if (!me.F) return sk.lines(70, 50, 60);
const m = d.models;
if (!m) return `<p class="muted sm">No <code>models.py</code> in its files.${!me.L?.running ? " Wake it to ask its server for <code>/schema</code>." : ""}</p>`;
if (m.error) return `<p class="muted sm">${fileLink(m.path, m.path)}: ${esc(m.error)}.</p>`;
const main = ["action", "observation", "state"].map((r) => [r, classOf(d, r)]).filter(([, c]) => c);
const shown = new Set(main.map(([, c]) => c.name));
const rest = (m.classes || []).filter((c) => !shown.has(c.name));
return `<div class="sp-sub"><b>Declared in its code</b>${SRC.file(me, m.path)}</div>
${main.map(([r, c]) => classTable(r[0].toUpperCase() + r.slice(1), c)).join("") || `<p class="muted sm">No Action, Observation or State classes in it.</p>`}
${rest.length ? `<details class="sp-more"><summary class="disclose">${icon("chevronRight", 14, "chev")}${fmt.format(rest.length)} more class${rest.length === 1 ? "" : "es"} in it</summary><div class="sp-more-b">${rest.map((c) => c.kind === "enum"
? `<div class="sec-label">Enum <code>${esc(c.name)}</code></div><p class="sm">${codes(c.values || [], 30)}</p>` : classTable(c.role ? c.role[0].toUpperCase() + c.role.slice(1) : "Class", c)).join("")}</div></details>` : ""}`;
}
const KEY_LABEL = { manifest: "openenv.yaml", models: "models.py", app: "server/app.py", environment: "environment", client: "client.py", pyproject: "pyproject.toml",
dockerfile: "Dockerfile", discovery: "discovery.json", inference: "inference.py", readme: "README", lock: "uv.lock" };
function filesSection(me) {
if (!me.F) return `<div class="sp-keys">${sk.line(60, 14)}</div>${sk.box(320)}`;
if (me.F.error) return `<p class="muted sm">Couldn't list its files: ${esc(me.F.error)}</p>`;
const F = me.F;
const keys = Object.entries(F.keys || {}).filter(([k]) => KEY_LABEL[k]);
return `${keys.length ? `<div class="sp-keys">${keys.map(([k, p]) => `<a href="#" class="sp-fl" data-open-file="${esc(p)}" title="${esc(p)}">${esc(k === "environment" ? p.split("/").pop() : KEY_LABEL[k])}</a>`).join("")}</div>` : ""}
<div class="sp-files" id="sp-files"></div>
<p class="fine sp-after">${fmt.format(F.total)} file${F.total === 1 ? "" : "s"} at <a class="u" href="https://huggingface.co/spaces/${enc(me.spec)}/tree/${esc(F.sha)}" target="_blank" rel="noopener"><code>${esc(F.short)}</code></a>${F.dropped ? `; ${fmt.format(F.dropped)} more left out: vendored OpenEnv, build output, caches` : ""}${F.truncated ? "; the listing stops here" : ""}.</p>`;
}
// ── connect ──────────────────────────────────────────────────────────────────
const CONNECT = [["agents", "Coding agents"], ["python", "Python"], ["docker", "Docker"], ["fork", "Fork"]];
function connectSection(me) {
const tab = CONNECT.some(([k]) => k === me.connectTab) ? me.connectTab : "agents";
return `<div class="seg sp-tabs" role="tablist" aria-label="How to connect">${CONNECT.map(([k, label]) => `<button type="button" role="tab" data-ctab="${k}" aria-pressed="${k === tab}">${label}</button>`).join("")}</div>
<div id="sp-connect">${connectPane(me, tab)}</div>`;
}
function connectPane(me, tab) {
const spec = me.spec, L = me.L, P = probeOf(me), d = D(me);
const host = L?.host || (me.F?.subdomain ? `https://${me.F.subdomain}.hf.space` : "");
if (tab === "agents") {
const url = `${location.origin}/mcp/${spec}`;
const own = (P?.mcp || []).map((t) => t.name);
const routeTools = L?.running ? (L.api || []).map((r) => r.path.replace(/[^A-Za-z0-9]+/g, "_").replace(/^_+|_+$/g, "").toLowerCase()).map((b, i) => (L.api[i].method === "POST" || b.startsWith("get_") ? b : `get_${b}`)).filter((n) => !own.includes(n)) : [];
const openenv = P?.openenv || P?.step_api;
const tools = P?.bridge_tools ? P.bridge_tools.map((t) => t.name) : P ? [...own, ...(openenv && P.step_api && !own.includes("reset") ? ["reset", ...(own.length ? [] : ["step"]), "state"] : []), ...routeTools, ...(P.task_api ? ["list_splits", "list_tasks", "get_task"] : [])] : [];
const chosen = chosenAgent();
return `<div class="sp-url"><div class="sp-url-row"><span class="sp-url-k">MCP</span><code>${esc(url)}</code>${copyBtn(url)}</div>
<p class="fine">Connect through the explorer's MCP bridge. ${openenv ? "An OpenEnv WebSocket keeps each agent's episode together." : "Each agent connection has its own HTTP cookies and MCP session; the server controls episode state."}${tools.length ? ` Available tools: ${tools.slice(0, 16).map((t) => `<code>${esc(t)}</code>`).join(" ")}${tools.length > 16 ? " …" : ""}.` : ""}${L && !L.running ? " A sleeping Space is woken on the first call." : ""} Images in observations come back as images.</p></div>
<div class="seg sp-agents" role="tablist" aria-label="Agent">${AGENTS.filter(([id]) => id !== "python").map(([id, label]) => `<button type="button" role="tab" data-agent="${id}" aria-pressed="${id === chosen}">${esc(label)}</button>`).join("")}</div>
<div id="sp-agent">${agentHtml(chosen === "python" ? "claude" : chosen, agentName(spec), url)}</div>`;
}
if (tab === "python") {
if (P && !P.openenv) return `<p class="fine sp-file">Use the same MCP bridge from Python:</p>${snippet(agentHtmlText(spec))}
${P.api?.length ? `<p class="fine sp-file">Or inspect the HTTP schema directly. Reuse the client for subsequent calls so the server's cookies persist:</p>${snippet(`# pip install httpx\nimport httpx\n\nwith httpx.Client(base_url=${JSON.stringify(host)}, timeout=120) as client:\n schema = client.get("/openapi.json").json()\n print(schema["paths"])\n # Choose a route and supply its required path, query and body fields here.`)}` : ""}`;
const action = actionExample(me);
const generic = `# pip install openenv-core (no package of its own: plain dictionaries)
from openenv.core.generic_client import GenericEnvClient
with GenericEnvClient(base_url="${host || `https://<subdomain>.hf.space`}").sync() as env:
result = env.reset()
print(result.observation)
result = env.step(${action})
print(result.reward, result.done)`;
const root = me.F && !me.F.error ? me.F.root : "";
const pyproject = d.pyproject && !d.pyproject.error ? d.pyproject.path : null;
const sub = pyproject && pyproject.includes("/") ? `#subdirectory=${pyproject.split("/").slice(0, -1).join("/")}` : "";
const auto = pyproject ? `# its own client and models, installed from the Space
# pip install "git+https://huggingface.co/spaces/${spec}${sub}"
from openenv import AutoEnv
env = AutoEnv.from_env("${spec}")` : null;
return `<p class="fine sp-file">Any OpenEnv server, from its URL${me.L && !me.L.running ? " (wake it first)" : ""}:</p>${snippet(generic)}
${auto ? `<p class="fine sp-file">Or with its own typed client${root ? ` (from <code>${esc(root)}/</code>)` : ""}:</p>${snippet(auto)}` : ""}
<p class="fine sp-file">Or over MCP, through this explorer's bridge:</p>${snippet(agentHtmlText(spec))}`;
}
if (tab === "docker") {
const port = d.card?.app_port || d.dockerfile?.port || 7860;
const sub = me.F?.subdomain || (host ? host.replace("https://", "").replace(".hf.space", "") : "");
if (!sub) return me.F ? `<p class="muted sm">The Hub gave no image name for this Space.</p>` : sk.lines(70, 50);
const path = L?.ui || d.card?.base_path || "/";
return `<p class="fine sp-file">The Space's own image, from the Hub's registry, on your machine:</p>
${snippet(`docker run -it -p 8000:${port} --platform=linux/amd64 registry.hf.space/${sub}:latest`)}
<p class="fine sp-file">Then <code>http://localhost:8000${esc(path)}</code>, or point a client at <code>http://localhost:8000</code>. Secrets it needs (its own API keys) go in with <code>-e NAME=value</code>.</p>`;
}
if (!L?.openenv_verified) return `<p class="fine sp-file">OpenEnv compatibility has not been verified. To copy this Space, use its Hub repository:</p><a class="btn" href="https://huggingface.co/spaces/${enc(spec)}?duplicate=true" target="_blank" rel="noopener">${icon("external", 14)}Duplicate on Hugging Face</a>`;
return `<p class="fine sp-file">A copy of this Space on your account, to change and run as your own (needs <code>hf auth login</code>):</p>
${snippet(`pip install openenv-core\nopenenv fork ${spec}`)}
<p class="fine sp-file">Options: <code>--repo-id you/name</code>, <code>--private</code>, <code>--hardware cpu-upgrade</code>, <code>--set-env KEY=VALUE</code>, <code>--set-secret KEY=VALUE</code>.</p>`;
}
const agentHtmlText = (spec) => AGENTS.find(([id]) => id === "python")[2](agentName(spec), `${location.origin}/mcp/${spec}`).text;
function actionExample(me) {
const P = probeOf(me), d = D(me);
if (P?.mcp?.length) return `{"type": "call_tool", "tool_name": "${P.mcp[0].name}", "arguments": {}}`;
const props = propsOf(P?.schema?.action).filter(([k]) => k !== "metadata").slice(0, 3);
if (props.length) return JSON.stringify(Object.fromEntries(props.map(([k, p]) => [k, p.default ?? (p.enum ? p.enum[0] : p.type === "string" ? "" : p.type === "integer" || p.type === "number" ? 0 : p.type === "boolean" ? false : null)])));
const [tools] = declaredTools(d);
if (tools?.length || d.app?.mcp) return `{"type": "call_tool", "tool_name": "${tools?.[0] || "<tool>"}", "arguments": {}}`;
const A = classOf(d, "action");
if (A?.fields?.length) {
const lit = (f) => { try { return JSON.parse((f.default || "").replace(/^'(.*)'$/, '"$1"').replace(/^None$/, "null").replace(/^True$/, "true").replace(/^False$/, "false")); } catch { return /int|float/.test(f.type) ? 0 : /bool/.test(f.type) ? false : ""; } };
return JSON.stringify(Object.fromEntries(A.fields.slice(0, 3).map((f) => [f.name, lit(f)])));
}
return "{}";
}
// ── conformance ──────────────────────────────────────────────────────────────
function conformanceSection(me) {
const L = me.L;
if (!L) return sk.lines(70, 70, 70, 70, 70, 70);
const P = probeOf(me);
const declared = me.s.declared_openenv || me.s.openenv || me.s.framework === "openenv" || me.s.manifest || D(me).manifest;
if (P && !P.openenv && !declared) return `<p class="sm">This server exposes ${esc(P.support?.framework?.label || KIND[P.framework] || "an HTTP API")}. Its published interface is shown above; OpenEnv-specific checks do not apply.</p>`;
const rows = L.running ? L.conformance : seenOf(me)?.conformance;
const where = L.running ? `From the probe ${L.checked ? esc(ago(L.checked)) : "just now"}.` : seenOf(me) ? `From when it was last seen running, ${esc(ago(seenOf(me).checked_at))}.` : "";
if (!rows?.length) return `<p class="muted sm">${L.running ? "Not checked." : "Not seen running here yet: wake it, and its server is checked against these."}</p>${criteriaList()}`;
const host = L.host;
return `${P && !P.openenv ? `<p class="sm">This repository has OpenEnv-related metadata, but its server did not return the expected OpenEnv schemas in this probe. The checks below show what answered.</p>` : ""}
<p class="fine sp-cf-note">${where} Basic endpoint checks corresponding to <code>openenv validate</code>. Passing does not verify an episode, reward correctness, or training quality.</p>
<p class="fine sp-cf-note">The MCP endpoint check accepts JSON-RPC error responses. ${P?.mcp?.length ? `Tool discovery returned ${fmt.format(P.mcp.length)} tools; tool execution is untested by this probe.` : `No usable MCP tools were discovered.${P?.mcp_error ? ` Server reply: <code>${esc(P.mcp_error)}</code>.` : ""}`} OpenEnv environments can use typed actions without MCP tools.</p>
<div class="sp-ft sp-cf"><table><thead><tr><th>Criterion</th><th>Result</th><th>Why</th></tr></thead><tbody>${rows.map((c) =>
`<tr><td class="ft-d"><code>${esc(c.id)}</code><span class="ft-tag">${esc(c.label)}</span></td><td class="ft-s"><span class="sp-cfs ${esc(c.status)}"><span class="dot"></span>${esc(c.status)}</span></td><td class="ft-d">${esc(c.reason)}</td></tr>`).join("")}</tbody></table></div>
${host ? `<p class="fine sp-file">Run it yourself:</p>${snippet(`openenv validate --url ${host}`)}` : ""}`;
}
const criteriaList = () => `<ul class="sp-crit">${[["openapi_version_available", "GET /openapi.json returns info.version"], ["health_endpoint", "GET /health returns healthy"],
["metadata_endpoint", "GET /metadata returns name and description"], ["schema_endpoint", "GET /schema returns action, observation and state"],
["mcp_endpoint", "POST /mcp returns JSON-RPC"], ["mode_endpoint_consistency", "its routes match its mode"]].map(([k, v]) => `<li><code>${k}</code> <span class="faint">${v}</span></li>`).join("")}</ul>`;
// ── the side panels ──────────────────────────────────────────────────────────
function statusPanel(me) {
const { s, L } = me;
const stage = L?.stage || s.stage || "UNKNOWN";
const [label, tone] = stageOf(stage);
let body;
if (!L) body = `<p class="sp-st-note">${sk.line(70)}</p>`;
else if (stage === "RUNNING") {
body = `<p class="sp-st-note">${L.checked ? `Checked ${esc(ago(L.checked))}` : "Asking its server what it offers…"}${s.hardware ? ` · ${esc(s.hardware)}` : ""}</p>
<button class="btn sm block" type="button" data-act="refresh">${icon("refresh", 13)}Check again</button>`;
} else if (stage === "SLEEPING") {
body = `<p class="sp-st-note">Spaces on free hardware sleep when nobody uses them. Anyone can wake one; it takes a minute or two.${seenOf(me) ? ` Last seen running ${esc(ago(seenOf(me).checked_at))}.` : ""}</p>
<button class="btn primary block" type="button" data-act="wake">${icon("power", 14)}Wake it</button>`;
} else if (STARTING.has(stage)) {
const secs = me.started ? Math.round((Date.now() - me.started) / 1000) : null;
body = `<ol class="sp-steps"><li class="done"><i></i>Asked to start</li><li class="now"><i></i>${stage === "BUILDING" ? "Building its image" : "Starting its server"}</li><li><i></i>Running</li></ol>
<p class="sp-st-note" id="sp-elapsed">${secs != null ? `${secs} s so far. ` : ""}Checking every few seconds.</p>`;
} else {
const user = getSession().user;
body = `<p class="sp-st-note">${stage === "PAUSED" ? "Its owner paused it." : stage === "STOPPED" ? "It was stopped." : "It stopped with an error."} Only someone who may write to it can restart it${user ? "" : ": sign in first"}.</p>
${user ? `<button class="btn block" type="button" data-act="restart">${icon("refresh", 14)}Restart it</button>` : `<button class="btn block" type="button" data-signin>${icon("user", 14)}Sign in to restart</button>`}
<a class="btn sm ghost block" href="https://huggingface.co/spaces/${enc(s.id)}?logs=container" target="_blank" rel="noopener">${icon("external", 13)}Its logs on the Hub</a>`;
}
return `<div class="panel-h"><h3>${icon("zap", 14)}Status</h3></div><div class="panel-b">
<div class="sp-st ${tone}"><span class="sp-st-dot"></span><b>${esc(label)}</b>${STARTING.has(stage) ? spinner("xs") : ""}</div>${body}<div class="sp-msg" data-msg="status"></div></div>`;
}
function glance(me) {
const { s, rank } = me;
const rows = [
rank ? ["Trending", `#${fmt.format(rank.n)} <span class="faint">of ${fmt.format(rank.of)} Spaces</span>`] : null,
["Likes", esc(s.likes)],
s.updated ? ["Updated", esc(ago(Date.parse(s.updated) / 1000))] : null,
s.license || D(me).card?.license ? ["License", esc(s.license || D(me).card.license)] : null,
].filter(Boolean);
return `<div class="panel-h"><h3>${icon("info", 14)}At a glance</h3></div><div class="panel-b"><dl class="kv">${rows.map(([a, b]) => `<dt>${a}</dt><dd>${b}</dd>`).join("")}</dl></div>`;
}
// ── the header ───────────────────────────────────────────────────────────────
function describe(me) {
const d = D(me), P = probeOf(me);
// OpenEnv's default /metadata says only "<Class> environment": not a description
const meta = P?.metadata?.description && !/^\w+ environment\.?$/i.test(P.metadata.description.trim()) ? P.metadata.description : null;
return d.manifest?.keys?.description || d.discovery?.description || meta || me.s.brief || d.card?.short_description || me.s.heading || "";
}
function factsLine(me) {
const { s, L } = me, d = D(me), P = probeOf(me);
const [label, tone] = stageOf(L?.stage || s.stage);
const kind = L?.openenv_verified ? (L.harbor ? "OpenEnv × Harbor" : "OpenEnv · API checked") : P?.framework && !["openenv", "harbor"].includes(P.framework) ? KIND[P.framework] : s.declared_openenv || s.openenv || d.manifest ? "Unverified Space" : "Docker Space";
const mode = P?.mode || (d.dockerfile?.mode ? String(d.dockerfile.mode).toLowerCase() : d.app?.mode ? String(d.app.mode).toLowerCase() : null);
const py = d.pyproject && !d.pyproject.error && d.pyproject.openenv ? `${d.pyproject.openenv_package || "openenv-core"} ${d.pyproject.openenv_version || ""}`.trim() : s.openenv_version ? `openenv ${s.openenv_version}` : null;
const hw = s.hardware || me.F?.hardware;
const bits = [
`<span class="sp-state ${tone}" id="sp-state"><span class="dot"></span>${esc(label)}</span>`,
`<span>${esc(kind)}</span>`, mode ? `<span>${esc(mode)}</span>` : null, py ? `<span title="${esc(d.pyproject?.openenv || "")}">${esc(py)}</span>` : null,
hw ? `<span>${esc(hw)}</span>` : null,
me.F && !me.F.error ? `<span>rev <a class="u" href="https://huggingface.co/spaces/${enc(me.spec)}/commit/${esc(me.F.sha)}" target="_blank" rel="noopener"><code>${esc(me.F.short)}</code></a></span>` : !me.F ? `<span>${sk.line(100)}</span>` : null,
].filter(Boolean);
return bits.join("");
}
function linksLine(me) {
const { L, spec } = me;
return `<a class="u" href="https://huggingface.co/spaces/${enc(spec)}" target="_blank" rel="noopener">${icon("external", 13)}Space</a>
<a class="u" href="https://huggingface.co/spaces/${enc(spec)}/tree/${esc(me.F?.sha || "main")}" target="_blank" rel="noopener">${icon("folder", 13)}Files</a>
${L?.running && L.ui ? `<a class="u" href="${esc(L.host + L.ui)}" target="_blank" rel="noopener">${icon("window", 13)}App</a>` : ""}
<button class="link" type="button" data-act="copy-link">${icon("link", 13)}Copy link</button>`;
}
// ── the page ─────────────────────────────────────────────────────────────────
const SECTIONS = [
["interface", "Interface", "gauge"], ["play", "Playground", "play"], ["harbor", "Rollouts here", "box"], ["app", "App", "window"], ["tools", "Tools", "wrench"],
["tasks", "Tasks", "list"], ["rewards", "Rewards", "target"], ["schema", "Schemas", "code"], ["files", "Files", "folder"],
["connect", "Connect", "plug"], ["conformance", "API checks", "check"], ["readme", "README", "doc"],
];
function sectionBody(me, id) {
switch (id) {
case "interface": return interfaceTable(me);
case "play": return playSection(me);
case "harbor": return harborSection(me.L);
case "app": return appSection(me);
case "tools": return toolsSection(me);
case "tasks": return tasksSection(me);
case "rewards": return rewardsSection(me);
case "schema": return schemasSection(me);
case "files": return filesSection(me);
case "connect": return connectSection(me);
case "conformance": return conformanceSection(me);
case "readme": return me.s.readme ? `<div class="prose">${md(me.s.readme)}</div>` : `<p class="muted sm">No README.</p>`;
default: return "";
}
}
function noteOf(me, id) {
const L = me.L;
if (id === "play" && L?.running) return "an episode on the Space";
if (id === "tools" && probeOf(me)?.mcp?.length) return `${fmt.format(probeOf(me).mcp.length)} over MCP`;
if (id === "tasks" && L?.running && L.task_api?.splits?.length) return "from its Task API";
if (id === "harbor") return "OpenEnv × Harbor";
return "";
}
const sectionsOf = (me) => SECTIONS.filter(([id]) => id !== "harbor" || (me.L?.running && me.L.harbor));
function skeleton(spec) {
const [org, name] = spec.split("/");
return `<div class="wrap page"><nav class="crumbs">${sk.box(12, "width:220px")}</nav>
<header class="tp-head ds-head"><h1>${ownerLink(org, "/")}${esc(name)}</h1>${sk.line(55, 14)}<div class="facts sp-facts"><div class="sp-fi">${sk.line(40, 13)}</div></div></header>
<div class="tp-grid"><nav class="toc sk-in sk-toc">${SECTIONS.slice(0, 8).map(() => sk.line(70, 12)).join("")}</nav>
<div class="tp-body"><section class="panel tp-sec"><div class="panel-h"><h2>${icon("gauge", 15)}Interface</h2></div><div class="panel-b">${ifaceSkeleton()}</div></section>
<section class="panel tp-sec"><div class="panel-h"><h2>${icon("play", 15)}Playground</h2></div><div class="panel-b">${sk.box(160)}</div></section></div>
<aside class="tp-side split"><section class="panel first"><div class="panel-h"><h3>${icon("zap", 14)}Status</h3></div><div class="panel-b sk-in">${sk.line(40, 16)}${sk.line(90)}${sk.box(30)}</div></section></aside>
</div></div>`;
}
export async function mount(el, { spec }) {
el.innerHTML = skeleton(spec);
const me = page = { spec, s: null, F: null, L: null, el, session: null, log: [], episode: null, poll: null, started: null, taskPage: { split: null, start: 0 },
rank: null, rewards: [], appOpen: false, connectTab: storage.get("sp-ctab") || "agents", filePath: null, viewer: null, rendered: false };
const params = new URLSearchParams(location.search), index = Number(params.get("task"));
if (params.has("task") && Number.isSafeInteger(index) && index >= 0) {
me.taskPage = { env: params.get("env"), split: params.get("split"), start: Math.floor(index / 20) * 20 };
me.linkedTask = index;
}
me.onKey = (e) => { if (e.key === "Escape") $(".sp-app.full", el)?.classList.remove("full"); };
document.addEventListener("keydown", me.onKey);
el.addEventListener("click", (e) => onClick(me, e));
el.addEventListener("change", (e) => {
if (e.target.id === "pg-tool") showTool(me);
if (e.target.id === "tk-env") {
me.taskPage = { env: e.target.value, split: null, start: 0 };
$("#sb-tasks", me.el).innerHTML = taskBrowser(me);
loadTasks(me);
}
});
// all three at once: the card (and README), what its files declare, what its server says (or said)
const card = api(`/api/spaces/${enc(spec)}`);
loadFiles(me);
loadLive(me, false);
api(`/api/search/rank?scope=ready&key=${encodeURIComponent(`space:${spec}`)}`).then((rk) => { // rank among recently checked environment Spaces
if (page === me) { me.rank = rk; const g = $("#sp-glance", el); if (g) g.innerHTML = glance(me); }
}).catch(() => {}); // not in the catalog yet: no rank shown
try { me.s = await card; } catch (e) {
if (page !== me) return;
el.innerHTML = `<div class="wrap page">${emptyState("alert", "Couldn't open this Space", esc(e.message), `<a class="btn" href="/?k=space">${icon("arrowLeft", 15)}All Spaces</a>`)}</div>`;
page = null;
return;
}
if (page === me) render(me);
}
function render(me) {
const { s, el, spec } = me;
if (!s) return;
const [org, name] = spec.split("/");
const sections = sectionsOf(me);
const linkedIndex = new URLSearchParams(location.search).get("task");
const taskView = /^\d{1,10}$/.test(linkedIndex || "");
const kind = me.L?.openenv_verified ? "OpenEnv Space" : s.declared_openenv || s.openenv || s.manifest ? "Unverified Space" : s.framework === "ors" ? "ORS Space" : "environment Space"; // as the server-rendered title says
if (!new URLSearchParams(location.search).has("task")) setMeta({ title: `${s.heading || name} · ${kind}`, description: `${spec}: an RL environment Space on Hugging Face. ${describe(me)} See it live: its app, a playground with rewards, its tasks, and MCP for coding agents.` });
me.viewer?.destroy();
me.viewer = null;
el.innerHTML = `<div class="wrap page${me.rendered ? "" : " fade-in"}">
<nav class="crumbs" aria-label="Breadcrumb"><a href="/">Environments</a>${icon("chevronRight", 13)}<a href="/?k=space">Spaces</a>${icon("chevronRight", 13)}<span>${esc(name)}</span></nav>
<header class="tp-head ds-head">
<h1>${taskView ? `Task ${Number(linkedIndex) + 1}` : `${ownerLink(org, "/")}${esc(name)}`}</h1>
${taskView ? `<p><a href="/s/${enc(spec)}">All tasks in ${esc(spec)}</a></p>` : ""}
<p class="lede" id="sp-lede">${esc(describe(me))}</p>
<div class="facts sp-facts"><div class="sp-fi" id="sp-facts">${factsLine(me)}</div></div>
<div class="facts sp-links" id="sp-links">${linksLine(me)}</div>
${(s.declared_openenv || s.openenv || s.manifest) && !me.L?.openenv_verified ? `<div class="note-box" id="sp-protocol-notice"><b>OpenEnv API not verified.</b> This Space was discovered from repository metadata. A file named <code>openenv.yaml</code> or a Hub tag does not establish compatibility.${me.L?.running ? " The current server did not pass the required API checks." : " It needs a successful check while running."}</div>` : ""}</header>
<div class="tp-grid">
<nav class="toc" aria-label="On this page"><p>On this page</p>${sections.map(([id, title]) => `<a href="#" data-jump="${id}">${esc(title)}</a>`).join("")}</nav>
<div class="tp-body">${sections.map(([id, title, ic]) => `<section class="panel tp-sec" id="sec-${id}"><div class="panel-h"><h2>${icon(ic, 15)}${esc(title)}</h2>
<span class="aside" id="note-${id}">${esc(noteOf(me, id))}</span></div><div class="panel-b sp-cq" id="sb-${id}">${sectionBody(me, id)}</div></section>`).join("")}</div>
<aside class="tp-side split"><section class="panel first" id="sp-status">${statusPanel(me)}</section><section class="panel last" id="sp-glance">${glance(me)}</section></aside>
</div></div>`;
me.rendered = true;
wirePlayground(me);
wireApp(me);
mountFiles(me);
if (me.L?.running && me.L.task_api) loadTasks(me);
me.observer?.disconnect();
const links = new Map([...el.querySelectorAll("[data-jump]")].map((a) => [`sec-${a.dataset.jump}`, a]));
const seen = new Map();
me.observer = new IntersectionObserver((es) => { // the contents list follows the section in view
es.forEach((x) => seen.set(x.target.id, x.isIntersecting));
const first = [...links.keys()].find((id) => seen.get(id));
links.forEach((a, id) => a.classList.toggle("on", id === first));
}, { rootMargin: "-80px 0px -55% 0px" });
el.querySelectorAll(".tp-sec").forEach((x) => me.observer.observe(x));
}
// redraw parts in place (the header, the side, some sections), keeping a playground or an open app as they are
function paint(me, ids) {
if (!me.rendered || page !== me) return;
const set = (sel, html) => { const x = $(sel, me.el); if (x) x.innerHTML = html; };
set("#sp-lede", esc(describe(me)));
set("#sp-facts", factsLine(me));
set("#sp-links", linksLine(me));
set("#sp-status", statusPanel(me));
set("#sp-glance", glance(me));
for (const id of ids) {
if (id === "files" && me.viewer) continue;
set(`#sb-${id}`, sectionBody(me, id));
set(`#note-${id}`, esc(noteOf(me, id)));
if (id === "files") mountFiles(me);
}
}
async function loadFiles(me) {
try { me.F = await api(`/api/spaces/${enc(me.spec)}/files`); } catch (e) { me.F = { error: e.message }; }
if (page !== me) return;
paint(me, ["interface", "tools", ...(me.L?.running && me.L.task_api?.splits?.length ? [] : ["tasks"]), "rewards", "schema", "files", "connect"]);
}
async function loadLive(me, fresh) {
let L;
try { L = await api(`/api/spaces/${enc(me.spec)}/live${fresh ? "?fresh=1" : ""}`); } catch (e) {
if (page !== me) return;
if (!me.L) me.L = { running: false, stage: me.s?.stage || "UNKNOWN", error: e.message };
const b = $("#sb-interface", me.el);
if (b) b.insertAdjacentHTML("beforeend", `<div class="note-box err sp-after">${icon("alert")}<span>Couldn't ask the Space: ${esc(e.message)}</span></div>`);
if (me.started) schedule(me, 6000);
return;
}
if (page !== me) return;
const was = me.L;
me.L = L;
if (L.task_api && me.indexKey) L.indexKey = me.indexKey;
// the page is drawn again only when what the server offers changed (the first answer, or it woke up); otherwise
// just the parts that say so, so a playground in progress keeps its episode
if (!me.rendered) { /* render() runs when the card arrives and reads me.L */ }
else if (!was || was.error || was.running !== L.running || was.openenv_verified !== L.openenv_verified) { const y = scrollY; render(me); scrollTo(0, y); }
else if (!L.running && was.stage !== L.stage) paint(me, ["play", "app", "interface", "conformance"]);
else paint(me, ["conformance"]);
if (STARTING.has(L.stage)) { me.started ||= Date.now(); schedule(me, 4000); }
else if (me.started && L.running) { me.started = null; toast("The Space is running"); }
}
function schedule(me, ms) {
clearTimeout(me.poll);
me.poll = setTimeout(async () => {
if (page !== me) return;
if (me.started && Date.now() - me.started > 10 * 60_000) {
const t = $("#sp-elapsed", me.el);
if (t) t.innerHTML = `Still not up after 10 minutes: <a class="u" href="https://huggingface.co/spaces/${enc(me.spec)}?logs=container" target="_blank" rel="noopener">check its logs</a>.`;
return;
}
await loadLive(me, true);
}, ms);
}
function mountFiles(me) {
const box = $("#sp-files", me.el);
if (!box || !me.F || me.F.error || me.viewer) return;
const F = me.F;
const byPath = new Map(F.files.map((f) => [f.path, f]));
const blob = (p) => `https://huggingface.co/spaces/${enc(me.spec)}/blob/${F.sha}/${enc(p)}`;
const raw = (p) => `https://huggingface.co/spaces/${enc(me.spec)}/resolve/${F.sha}/${enc(p)}`;
const y = scrollY; // the viewer brings its open file's row into view; the page stays where the reader is
me.viewer = fileViewer(box, {
files: F.files.map((f) => ({ path: f.path, size: f.size, withheld: !!f.withheld })),
initial: me.filePath || F.keys?.manifest || F.keys?.readme || null,
load: async (p) => {
const f = byPath.get(p);
if (f?.binary) return { binary: true, size: f.size };
try { return await api(`/api/spaces/${enc(me.spec)}/file?f=${encodeURIComponent(p)}`); }
catch (e) { return e.status === 415 ? { binary: true, size: f?.size } : { error: e.message }; }
},
hubUrl: blob,
rawUrl: (p) => (byPath.get(p)?.binary && /\.(png|jpe?g|gif|webp|svg|avif)$/i.test(p) ? raw(p) : null),
onChange: (p) => { me.filePath = p; },
});
if (scrollY !== y) scrollTo({ top: y, behavior: "instant" });
}
function openFile(me, path) {
const sec = $("#sec-files", me.el);
if (!sec) return;
sec.scrollIntoView({ behavior: "smooth", block: "start" });
if (me.viewer) me.viewer.open(path);
else me.filePath = path;
}
function wireApp(me) {
$(".space-app", me.el)?.addEventListener("load", (e) => e.target.closest(".sp-app-frame")?.classList.add("loaded"));
}
async function onClick(me, e) {
const t = e.target;
const j = t.closest("[data-jump]");
if (j) { e.preventDefault(); $(`#sec-${j.dataset.jump}`, me.el)?.scrollIntoView({ behavior: "smooth", block: "start" }); return; }
const jt = t.closest("[data-jump-to]");
if (jt) { $(`#sec-${jt.dataset.jumpTo}`, me.el)?.scrollIntoView({ behavior: "smooth", block: "start" }); return; }
const of = t.closest("[data-open-file]");
if (of) { e.preventDefault(); openFile(me, of.dataset.openFile); return; }
const c = t.closest("[data-copy]");
if (c) { navigator.clipboard?.writeText(c.dataset.copy).then(() => toast("Copied"), () => toast("Couldn't copy")); return; }
const act = t.closest("[data-act]")?.dataset.act;
if (act === "copy-link") { navigator.clipboard?.writeText(location.href).then(() => toast("Link copied")); return; }
if (act === "refresh") { const b = t.closest("button"); b.disabled = true; b.innerHTML = `${spinner()}Checking…`; await loadLive(me, true); return; }
if (act === "wake" || act === "restart") {
const b = t.closest("button");
const msg = b.parentElement.querySelector(".sp-msg") || $('[data-msg="status"]', me.el);
me.el.querySelectorAll(`[data-act="${act}"]`).forEach((x) => { x.disabled = true; x.innerHTML = `${spinner()}${act === "wake" ? "Waking…" : "Restarting…"}`; });
try {
const r = await api(`/api/spaces/${enc(me.spec)}/${act}`, { method: "POST", body: {} });
me.started = Date.now();
me.L = { ...(me.L || {}), running: r.stage === "RUNNING", stage: r.stage === "SLEEPING" || ERRORISH(r.stage) ? "APP_STARTING" : r.stage };
paint(me, ["play", "app"]);
schedule(me, 3000);
} catch (err) {
me.el.querySelectorAll(`[data-act="${act}"]`).forEach((x) => { x.disabled = false; x.innerHTML = act === "wake" ? `${icon("power", 14)}Wake it` : `${icon("refresh", 14)}Restart it`; });
if (msg) msg.innerHTML = `<div class="note-box err">${icon("alert")}<span>${esc(err.message)}${err.status === 403 ? ` <a class="u" href="https://huggingface.co/spaces/${enc(me.spec)}/settings" target="_blank" rel="noopener">Its settings on the Hub</a>` : ""}</span></div>`;
}
return;
}
const app = t.closest("[data-app]")?.dataset.app;
if (app === "load") { me.appOpen = true; $("#sb-app", me.el).innerHTML = appSection(me); wireApp(me); return; }
if (app === "reload") { const f = $(".space-app", me.el); if (f) { f.closest(".sp-app-frame")?.classList.remove("loaded"); f.src = f.src; } return; }
if (app === "full") { $(".sp-app", me.el)?.classList.toggle("full"); return; }
const ct = t.closest("[data-ctab]");
if (ct) {
me.connectTab = ct.dataset.ctab;
storage.set("sp-ctab", me.connectTab);
me.el.querySelectorAll("[data-ctab]").forEach((x) => x.setAttribute("aria-pressed", String(x === ct)));
$("#sp-connect", me.el).innerHTML = connectPane(me, me.connectTab);
return;
}
const ag = t.closest("[data-agent]");
if (ag) {
storage.set("sp-agent", ag.dataset.agent);
me.el.querySelectorAll("[data-agent]").forEach((x) => x.setAttribute("aria-pressed", String(x === ag)));
$("#sp-agent", me.el).innerHTML = agentHtml(ag.dataset.agent, agentName(me.spec), `${location.origin}/mcp/${me.spec}`);
return;
}
const tr = t.closest("[data-try]");
if (tr) {
e.preventDefault();
const sel = $("#pg-tool", me.el);
if (sel) {
sel.value = tr.dataset.try;
const modes = $(".pg-modes", me.el);
if (modes) modes.querySelector('[data-mode="tools"]')?.click();
showTool(me);
}
$("#sec-play", me.el)?.scrollIntoView({ behavior: "smooth", block: "start" });
return;
}
const sp = t.closest("[data-split]");
if (sp) {
me.taskPage = { env: me.taskPage.env, split: sp.dataset.split, start: 0 };
me.el.querySelectorAll("[data-split]").forEach((x) => x.setAttribute("aria-pressed", String(x === sp)));
$("#tk-detail", me.el).hidden = true;
loadTasks(me);
return;
}
if (t.closest("#tk-prev")) { me.taskPage.start = Math.max(0, me.taskPage.start - 20); loadTasks(me); return; }
if (t.closest("#tk-next")) { me.taskPage.start += 20; loadTasks(me); return; }
const play = t.closest("[data-play-task]");
if (play) {
const split = $("#pg-split", me.el), idx = $("#pg-index", me.el);
if (split) split.value = me.taskPage.split || "";
if (idx) idx.value = play.dataset.playTask;
const opts = $(".pg-opts", me.el);
if (opts) opts.open = true;
$("#sec-play", me.el)?.scrollIntoView({ behavior: "smooth", block: "start" });
await reset(me);
return;
}
const nextTask = t.closest("[data-task-move]");
if (nextTask) { openTask(me, me.selectedTask + Number(nextTask.dataset.taskMove)); return; }
if (t.closest("#tk-close")) { $("#tk-detail", me.el).hidden = true; me.el.querySelectorAll("[data-task]").forEach((r) => r.classList.remove("on")); return; }
const row = t.closest("[data-task]");
if (row) openTask(me, +row.dataset.task);
}
const ERRORISH = (x) => /ERROR|STOPPED|PAUSED/.test(x || "");
// ── playground ───────────────────────────────────────────────────────────────
function wirePlayground(me) {
const ctl = $(".pg-ctl", me.el);
if (!ctl) return;
wireForm(ctl);
if ($("#pg-tool", me.el)) showTool(me);
$("#pg-reset", me.el)?.addEventListener("click", () => reset(me));
$("#pg-step", me.el)?.addEventListener("click", () => step(me));
$("#pg-call", me.el)?.addEventListener("click", () => call(me));
$("#pg-send", me.el)?.addEventListener("click", () => sendRoute(me));
$("#pg-route", me.el)?.addEventListener("change", () => showRoute(me));
if ($("#pg-route", me.el)) showRoute(me);
ctl.querySelector(".pg-modes")?.addEventListener("click", (e) => {
const b = e.target.closest("[data-mode]");
if (!b) return;
ctl.querySelectorAll("[data-mode]").forEach((x) => x.setAttribute("aria-pressed", String(x === b)));
ctl.querySelectorAll("[data-pane]").forEach((p) => (p.hidden = p.dataset.pane !== b.dataset.mode));
});
$("#pg-log", me.el)?.addEventListener("click", (e) => { if (e.target.closest("#pg-end")) endSession(me); });
$("#pg-sess", me.el)?.addEventListener("click", (e) => { if (e.target.closest("#pg-end")) endSession(me); });
renderLog(me);
}
function showTool(me) {
const name = $("#pg-tool", me.el)?.value;
if (!name) return;
const tool = (me.L.mcp || []).find((t) => t.name === name) || {};
$("#pg-desc", me.el).textContent = (tool.description || "").split("\n\n")[0].slice(0, 400);
// a server that lists a tool without its input schema: its arguments as JSON (named from its code when we have it)
const params = D(me).environment?.tools?.find((t) => t.name === name)?.params || [];
$("#pg-form", me.el).innerHTML = tool.inputSchema ? schemaForm(tool.inputSchema, { prefix: "pgt" })
: `<label class="field"><span>Arguments <em>JSON; the server didn't list this tool's parameters${params.length ? `, its code takes ${params.map((p) => `<code>${esc(p)}</code>`).join(", ")}` : ""}</em></span>
<textarea class="input mono" id="pg-args" rows="3" spellcheck="false" placeholder="${esc(JSON.stringify(Object.fromEntries(params.map((p) => [p, ""]))))}">${params.length ? esc(JSON.stringify(Object.fromEntries(params.map((p) => [p, ""])))) : "{}"}</textarea></label>`;
$("#pg-warn", me.el).innerHTML = name === "run_rollout" ? `<label class="note-box warn pg-confirm"><input type="checkbox" id="pg-ok"><span>This runs a whole rollout on this Space, with its operator's sandbox and model: it takes minutes and they pay for it. To run a Harbor task on your own account, open its dataset in the explorer.</span></label>` : "";
}
function showRoute(me) {
const r = me.L.api[+$("#pg-route", me.el).value];
$("#pg-rdesc", me.el).textContent = r.summary || "";
$("#pg-rparams", me.el).innerHTML = r.params.length ? `<div class="sf">${r.params.map((p) => `<label class="field sf-f"><span><code>${esc(p)}</code><em>in the path</em></span>
<input class="input mono" data-rp="${esc(p)}" spellcheck="false" autocomplete="off"></label>`).join("")}</div>` : "";
$("#pg-query", me.el).innerHTML = Object.keys(r.query_schema?.properties || {}).length ?
`<div class="sec-label">Query parameters</div>${schemaForm(r.query_schema, { prefix: "pgq", skip: [] })}` : "";
$("#pg-rform", me.el).innerHTML = r.method === "POST" ? (r.schema ? schemaForm(r.schema, { prefix: "pgr", skip: [] })
: `<label class="field"><span>Body <em>JSON</em></span><textarea class="input mono" id="pg-rbody" rows="3" spellcheck="false">{}</textarea></label>`) : "";
}
async function sendRoute(me) {
const r = me.L.api[+$("#pg-route", me.el).value];
const params = {};
for (const i of me.el.querySelectorAll("[data-rp]")) {
if (!/^[\w.\-~]{1,200}$/.test(i.value) || [".", ".."].includes(i.value)) { toast(`${i.dataset.rp}: enter a path value using letters, digits, . - _`); return; }
params[i.dataset.rp] = i.value;
}
let body = null, query = {};
try { if (r.query_schema) query = readForm($("#pg-query", me.el), r.query_schema); }
catch (e) { toast(e.message); return; }
if (r.method === "POST") {
try {
if (r.schema) body = readForm($("#pg-rform", me.el), r.schema);
else body = JSON.parse($("#pg-rbody", me.el)?.value || "{}");
} catch (e) { toast(e.message || "The body isn't valid JSON"); return; }
}
await send(me, "http", { method: r.method, path: r.path, params, query, body }, `${r.method} ${r.path}`);
}
async function ensureSession(me) {
if (!me.session) {
const generation = me.sessionGeneration || 0;
const id = (await api(`/api/spaces/${enc(me.spec)}/play`, { method: "POST", body: { op: "start" } })).session;
if (page !== me || generation !== (me.sessionGeneration || 0)) {
api(`/api/spaces/${enc(me.spec)}/play`, { method: "POST", body: { op: "end", session: id } }).catch(() => {});
throw new Error("This playground was closed.");
}
me.session = id;
}
return me.session;
}
function endSession(me) {
me.sessionGeneration = (me.sessionGeneration || 0) + 1;
const id = me.session;
me.session = null; me.episode = null; me.log = [];
if (id) api(`/api/spaces/${enc(me.spec)}/play`, { method: "POST", body: { op: "end", session: id } }).catch(() => {});
renderLog(me);
}
async function send(me, op, data, label) {
if (me.sending) return;
me.sending = true;
const entry = { op, label, pending: true };
if (op === "reset") me.log = [];
me.log.push(entry);
renderLog(me);
busy(me, true);
const post = () => api(`/api/spaces/${enc(me.spec)}/play`, { method: "POST", body: { op, session: me.session, data } });
try {
await ensureSession(me);
if (!me.log.includes(entry)) return;
let r;
try { r = await post(); } catch (err) {
if (err.status !== 410 || !me.log.includes(entry)) throw err;
me.session = null; // it timed out: a fresh session (an episode in progress is gone, so a step has to start over)
if (op !== "reset") { me.episode = null; throw new Error("The session ended. Start a new episode before continuing."); }
await ensureSession(me);
r = await post();
}
if (page !== me || !me.log.includes(entry)) return;
Object.assign(entry, { pending: false, result: spaceMedia(r.result, me.L.host), ms: r.ms, stateful: r.stateful });
if (op === "reset") me.episode = { steps: 0, total: 0, done: false, task: taskOf(r.result) };
else {
me.episode ||= { steps: 0, total: 0, done: false, task: null };
me.episode.steps++;
const rw = rewardOf(op, r.result);
if (typeof rw === "number") { me.episode.total += rw; me.rewards.push(rw); paint(me, ["interface", "rewards"]); }
if (doneOf(r.result)) me.episode.done = true;
}
} catch (err) {
Object.assign(entry, { pending: false, error: err.message });
} finally {
me.sending = false;
if (page === me) { busy(me, false); renderLog(me); }
}
}
const rewardOf = (op, r) => (op === "http" ? (typeof r?.json?.reward === "number" ? r.json.reward : null) : op === "call" ? (typeof r?.structuredContent?.reward === "number" ? r.structuredContent.reward : typeof r?.structured_content?.reward === "number" ? r.structured_content.reward : null)
: r?.reward ?? r?.observation?.reward);
const doneOf = (r) => Boolean(r?.done || r?.observation?.done || r?.terminated || r?.truncated ||
r?.json?.done || r?.json?.terminated || r?.json?.truncated || r?.structuredContent?.done);
const taskOf = (r) => { const o = r?.observation || {}; return o.task_id || o.metadata?.task_id || (o.index != null ? `#${o.index}` : null); };
const busy = (me, on) => me.el.querySelectorAll("#pg-reset, #pg-step, #pg-call, #pg-send, [data-play-task]").forEach((b) => (b.disabled = on));
function resetParams(me) {
const out = {};
const raw = $("#pg-params", me.el)?.value.trim();
if (raw) {
let p;
try { p = JSON.parse(raw); } catch { throw new Error("Reset options aren't valid JSON"); }
if (!p || typeof p !== "object" || Array.isArray(p)) throw new Error("Reset options should be a JSON object, like {\"seed\": 1}");
Object.assign(out, p);
}
const split = $("#pg-split", me.el)?.value, idx = $("#pg-index", me.el)?.value;
if (split) out.split = split;
if (idx !== "" && idx != null) {
if (!Number.isSafeInteger(Number(idx)) || Number(idx) < 0) throw new Error("The task index should be a whole number, 0 or more");
out[me.indexKey || "index"] = Number(idx); // servers name it their own way: the key their Task API rows use
}
return out;
}
async function reset(me) {
let params;
try { params = resetParams(me); } catch (e) { toast(e.message); return; }
await send(me, "reset", params, Object.keys(params).length ? JSON.stringify(params) : "");
}
async function step(me) {
let action;
try { action = readForm($("#pg-form", me.el), me.L.schema?.action || {}); } catch (e) { toast(e.message); return; }
await send(me, "step", action, JSON.stringify(action).slice(0, 90));
}
async function call(me) {
const name = $("#pg-tool", me.el).value;
const tool = (me.L.mcp || []).find((t) => t.name === name) || {};
if (name === "run_rollout" && !$("#pg-ok", me.el)?.checked) { toast("Tick the box first: this runs on the Space operator's account"); return; }
let args;
try {
if (tool.inputSchema) args = readForm($("#pg-form", me.el), tool.inputSchema);
else {
args = JSON.parse($("#pg-args", me.el)?.value.trim() || "{}");
if (!args || typeof args !== "object" || Array.isArray(args)) throw new Error("Arguments should be a JSON object");
}
} catch (e) { toast(e instanceof SyntaxError ? "The arguments aren't valid JSON" : e.message); return; }
await send(me, "call", { name, arguments: args }, `${name}(${JSON.stringify(args).slice(1, -1).slice(0, 80)})`);
}
function renderLog(me) {
const box = $("#pg-log", me.el), sess = $("#pg-sess", me.el);
if (!box) return;
const ep = me.episode;
if (sess) {
sess.innerHTML = me.session
? `<span class="dot" style="--dc:var(--ok)"></span><span>${ep ? `${ep.task ? `<code title="${esc(ep.task)}">${esc(ep.task)}</code> · ` : ""}${fmt.format(ep.steps)} step${ep.steps === 1 ? "" : "s"}${ep.total ? ` · reward <b>${esc(String(+ep.total.toFixed(4)))}</b>` : ""}${ep.done ? " · done" : ""}` : "Session open"}</span><button class="link sm" type="button" id="pg-end">End</button>`
: `<span class="dot" style="--dc:var(--faint)"></span><span>No episode yet</span>`;
}
if (!me.log.length) {
box.innerHTML = `<div class="pg-empty">${icon("play", 22)}<b>${me.L?.openenv ? "Start an episode" : me.L?.api?.length ? "Send a request" : "Call a tool"}</b><p>Each request shows here with the server's response and any reward it returns.</p></div>`;
return;
}
box.innerHTML = me.log.map((x, i) => {
const recent = i >= me.log.length - 2;
const rw = x.result ? rewardOf(x.op, x.result) : null;
const head = `<span class="pg-op ${x.op}">${esc(x.op)}</span><span class="pg-lbl">${esc(x.label || "")}</span><span class="grow"></span>
${x.pending ? spinner("xs") : x.error ? `<span class="rv-done err">failed</span>` : `${rw != null ? `<span class="rv-reward ${rw > 0 ? "pos" : rw < 0 ? "neg" : ""}">${esc(String(+Number(rw).toFixed(4)))}</span>` : ""}<span class="faint xs">${fmt.format(x.ms)} ms</span>`}`;
const body = x.pending ? `<div class="pg-wait">${x.op === "reset" ? "Starting an episode on the Space…" : "Waiting for the environment…"}</div>`
: x.error ? `<div class="note-box err">${icon("alert")}<span>${esc(x.error)}</span></div>`
: x.op === "call" ? callView(x.result) : x.op === "http" ? httpView(x.result) : obsView(x.result);
return `<details class="pg-entry" ${recent || x.error ? "open" : ""}><summary>${head}</summary><div class="pg-body">${body}</div></details>`;
}).join("") + (me.L?.openenv && me.log.at(-1)?.stateful === false ? `<p class="fine">The WebSocket session is unavailable. These tool calls use HTTP and may not retain episode state.</p>` : "");
}
// ── what the environment sent back ───────────────────────────────────────────
// One status line (reward, done, its feedback), then long text at full width (newlines kept, folded when long),
// images, the short fields as a wrapping key–value grid, and nested objects (metadata) as smaller grids. Nothing
// scrolls inside the log, and nothing scrolls sideways.
const STATUS_KEYS = ["feedback", "message", "status", "result", "error", "info", "action_result"];
const ORDER = ["prompt", "instruction", "question", "task", "observation", "text", "content", "dashboard", "output", "stdout", "stderr"];
const isObj = (v) => v && typeof v === "object" && !Array.isArray(v);
const isMedia = (html) => /^<(img|audio|video)\b/.test(html);
let foldN = 0;
function textBlock(v) {
const s = String(v);
const looksMd = /(^|\n)(#{1,4} |[-*] |\d+\. |```)/.test(s) && s.length < 40_000;
const body = looksMd ? `<div class="prose pgv-md">${md(s)}</div>` : `<div class="pgv-txt">${esc(s.length > 60_000 ? s.slice(0, 60_000) + "\n… (cut)" : s)}</div>`;
const long = s.length > 1400 || s.split("\n").length > 18;
if (!long) return body;
const id = `pgv-f${++foldN}`;
return `<div class="pgv-fold"><input type="checkbox" class="pgv-tog" id="${id}"><div class="pgv-fold-b">${body}</div>
<label for="${id}" class="pgv-more"><span class="o">Show all ${fmt.format(s.length)} characters</span><span class="c">Show less</span></label></div>`;
}
function factHtml(k, v, ctx) {
if (v == null) return `<span class="faint">–</span>`;
if (typeof v === "boolean") return `<span class="rv-bool ${v}">${v}</span>`;
if (typeof v === "number") return `<span class="pgv-num">${esc(Number.isInteger(v) ? fmt.format(v) : String(+v.toFixed(6)))}</span>`;
if (typeof v === "string") { const h = value(v, k, 0, ctx); return h.startsWith("<span class=\"rv-faint\"") ? h : `<span class="pgv-s">${esc(v)}</span>`; }
if (Array.isArray(v)) return v.length ? `<span class="pgv-list">${v.map((x) => `<code>${esc(typeof x === "string" ? x : JSON.stringify(x))}</code>`).join("")}</span>` : `<span class="faint">none</span>`;
return `<span class="pgv-inl">${Object.entries(v).map(([a, b]) => `<span><i>${esc(a)}</i> ${b == null ? "–" : esc(typeof b === "object" ? JSON.stringify(b) : String(b))}</span>`).join("")}</span>`;
}
// an object's fields, sorted into texts, media, short facts and nested groups
function fieldsView(o, depth = 0, hide = []) {
const texts = [], media = [], facts = [], groups = [];
const keys = Object.keys(o).filter((k) => !hide.includes(k));
keys.sort((a, b) => (ORDER.includes(a) ? ORDER.indexOf(a) : 99) - (ORDER.includes(b) ? ORDER.indexOf(b) : 99));
for (const k of keys) {
const v = o[k];
if (typeof v === "string") {
const h = value(v, k, 0, o);
if (isMedia(h)) media.push([k, h]);
else if (v.length > 140 || v.includes("\n")) texts.push([k, v]);
else facts.push([k, v]);
} else if (Array.isArray(v)) {
const short = v.length <= 40 && v.every((x) => x == null || ["string", "number", "boolean"].includes(typeof x)) && v.every((x) => String(x).length <= 60);
if (short) facts.push([k, v]);
else groups.push([k, `<div class="pgv-val">${value(v, k, 1, o)}</div>`]);
} else if (isObj(v)) {
const flat = Object.values(v).every((x) => x == null || typeof x !== "object") && Object.keys(v).length <= 8;
if (depth > 0 && flat) facts.push([k, v]);
else if (Object.keys(v).length) groups.push([k, fieldsView(v, depth + 1)]);
else facts.push([k, null]);
} else facts.push([k, v]);
}
return `<div class="pgv${depth ? " sub" : ""}">
${texts.map(([k, v]) => `<div class="pgv-sec"><div class="pgv-k">${esc(k)}</div>${textBlock(v)}</div>`).join("")}
${media.map(([k, h]) => `<div class="pgv-sec"><div class="pgv-k">${esc(k)}</div><div class="pgv-media">${h}</div></div>`).join("")}
${facts.length ? `<dl class="pgv-grid">${facts.map(([k, v]) => `<div class="${typeof v === "string" && v.length > 40 || isObj(v) || (Array.isArray(v) && v.length > 4) ? "wide" : ""}"><dt>${esc(k)}</dt><dd>${factHtml(k, v, o)}</dd></div>`).join("")}</dl>` : ""}
${groups.map(([k, h]) => `<div class="pgv-sec"><div class="pgv-k">${esc(k)}</div>${h}</div>`).join("")}
</div>`;
}
function statusLine(bits) {
const shown = bits.filter(Boolean);
return shown.length ? `<div class="pgv-status">${shown.join("")}</div>` : "";
}
// reset/step: {observation, reward, done}
function obsView(data) {
const obs = isObj(data) && "observation" in data ? data.observation : data;
const reward = data?.reward ?? obs?.reward, done = data?.done ?? obs?.done;
const said = isObj(obs) ? STATUS_KEYS.find((k) => typeof obs[k] === "string" && obs[k] && obs[k].length <= 240 && !obs[k].includes("\n")) : null;
const head = statusLine([
reward != null ? `<span class="pgv-rw ${Number(reward) > 0 ? "pos" : Number(reward) < 0 ? "neg" : ""}">reward <b>${esc(typeof reward === "number" ? num(reward) : String(reward))}</b></span>` : null,
done != null ? `<span>${done ? "<b>done</b>" : "not done"}</span>` : null,
said ? `<span class="pgv-said">${esc(obs[said])}</span>` : null]);
if (!isObj(obs)) return head + (obs == null ? "" : typeof obs === "string" ? textBlock(obs) : `<div class="pgv-val">${value(obs, "observation")}</div>`);
return head + fieldsView(obs, 0, ["reward", "done", ...(said ? [said] : [])]);
}
// an MCP tool's result: its content parts (JSON parts as fields), images, or its raw value
function callView(r) {
if (!isObj(r) || !Array.isArray(r.content)) return isObj(r) ? fieldsView(r) : `<div class="pgv-val">${value(r)}</div>`;
const sc = r.structuredContent || r.structured_content;
const rw = typeof sc?.reward === "number" ? sc.reward : null;
const head = statusLine([r.isError || r.is_error ? `<span class="pgv-err">error</span>` : null,
rw != null ? `<span class="pgv-rw ${rw > 0 ? "pos" : rw < 0 ? "neg" : ""}">reward <b>${esc(num(rw))}</b></span>` : null]);
const parts = r.content.map((c) => {
if (c?.type === "text") {
try { const j = JSON.parse(c.text); if (isObj(j)) return fieldsView(j); if (Array.isArray(j)) return `<div class="pgv-val">${value(j)}</div>`; } catch { /* plain text */ }
return textBlock(c.text || "");
}
if (c?.type === "image" && /^image\/(png|jpeg|gif|webp)$/.test(c.mimeType || c.mime_type)) return `<div class="pgv-media"><img class="rv-img" src="data:${esc(c.mimeType || c.mime_type)};base64,${esc(c.data)}" alt=""></div>`;
if (c?.type === "audio") return `<audio class="rv-audio" controls src="data:${esc(c.mimeType || "audio/wav")};base64,${esc(c.data)}"></audio>`;
return `<div class="pgv-val">${value(c)}</div>`;
}).join("");
return head + (parts || `<span class="faint sm">no content</span>`);
}
// a route's answer: its status, then its body (JSON, text, or an image)
function httpView(r) {
const ok = r.status >= 200 && r.status < 300;
const head = statusLine([`<span class="${ok ? "" : "pgv-err"}">HTTP ${esc(r.status)}</span>`,
typeof r.json?.reward === "number" ? `<span class="pgv-rw ${r.json.reward > 0 ? "pos" : ""}">reward <b>${esc(num(r.json.reward))}</b></span>` : null]);
if (r.image) return head + `<div class="pgv-media"><img class="rv-img" src="${esc(r.image)}" alt=""></div>`;
if (r.json !== undefined) return head + (isObj(r.json) ? fieldsView(r.json) : `<div class="pgv-val">${value(r.json)}</div>`);
return head + (r.text ? textBlock(r.text) : `<span class="faint sm">no body</span>`);
}
// ── tasks ────────────────────────────────────────────────────────────────────
async function loadTasks(me) {
const L = me.L, box = $("#tk-table", me.el);
if (!box || !L?.task_api) return;
const splits = taskCatalog(me).splits;
me.taskPage.split ??= (splits.find((x) => x.default) || splits[0])?.name || "";
const { split, start, env } = me.taskPage;
me.selectedTask = null;
$("#tk-detail", me.el).hidden = true;
const total = splits.find((x) => x.name === split)?.num_tasks;
box.innerHTML = sk.lines(90, 90, 90, 90);
$("#tk-range", me.el).textContent = "";
try {
const r = await api(`/api/spaces/${enc(me.spec)}/tasks?env=${encodeURIComponent(env)}&split=${encodeURIComponent(split)}&start=${start}&stop=${start + 20}`);
if (page !== me || me.taskPage.env !== env || me.taskPage.split !== split || me.taskPage.start !== start) return;
me.tasks = r.tasks;
if (r.tasks.length && me.indexKey == null) { me.indexKey = "task_index" in r.tasks[0] ? "task_index" : "index"; L.indexKey = me.indexKey; }
const keys = columns(r.tasks);
box.innerHTML = r.tasks.length ? `<div class="tbl tk-tbl"><table><thead><tr>${keys.map((k) => `<th>${esc(k)}</th>`).join("")}</tr></thead><tbody>${r.tasks.map((t, i) =>
`<tr data-task="${i}" tabindex="0" aria-label="Inspect task ${start + i + 1}">${keys.map((k) => `<td title="${esc(typeof t[k] === "string" ? t[k] : "")}">${cellOf(t[k])}</td>`).join("")}</tr>`).join("")}</tbody></table></div>
${r.withheld.length ? `<p class="fine">${icon("shield", 12)} Left out, as they may hold the answer: ${r.withheld.map((k) => `<code>${esc(k)}</code>`).join(", ")}.</p>` : ""}`
: `<p class="muted sm">No tasks here.</p>`;
$("#tk-range", me.el).textContent = r.tasks.length ? `${fmt.format(start + 1)}–${fmt.format(start + r.tasks.length)}${total != null ? ` of ${fmt.format(total)}` : ""}` : "";
$("#tk-prev", me.el).disabled = start === 0;
$("#tk-next", me.el).disabled = r.tasks.length < 20 || (total != null && start + 20 >= total);
box.querySelectorAll("[data-task]").forEach((tr) => tr.addEventListener("keydown", (e) => { if (e.key === "Enter") openTask(me, +tr.dataset.task); }));
if (me.linkedTask != null) { const target = me.linkedTask; me.linkedTask = null; openTask(me, target - start); }
} catch (e) { box.innerHTML = `<div class="note-box err">${icon("alert")}<span>${esc(e.message)}</span></div>`; }
}
function columns(rows) {
const first = ["task_index", "index", "task_id", "id", "task_name", "name", "title"];
const keys = [...new Set(rows.flatMap((r) => Object.keys(r)))];
const short = keys.filter((k) => rows.every((r) => r[k] == null || (["string", "number", "boolean"].includes(typeof r[k]) && String(r[k]).length <= 80)));
const pick = [...first.filter((k) => keys.includes(k)), ...short.filter((k) => !first.includes(k) && !["split", "dataset"].includes(k))].slice(0, 6);
return pick.length ? pick : keys.slice(0, 4);
}
const cellOf = (x) => (x == null ? `<span class="faint">–</span>` : typeof x === "string" ? esc(x.length > 80 ? x.slice(0, 80) + "…" : x)
: typeof x === "object" ? `<span class="faint">${Array.isArray(x) ? `${x.length} items` : "{…}"}</span>` : `<code>${esc(String(x))}</code>`);
async function openTask(me, i) {
const t = me.tasks?.[i];
if (!t) return;
me.selectedTask = i;
const requestKey = me.taskRequest = (me.taskRequest || 0) + 1;
me.el.querySelectorAll("[data-task]").forEach((r) => r.classList.toggle("on", +r.dataset.task === i));
const idx = t.task_index ?? t.index ?? me.taskPage.start + i;
const d = $("#tk-detail", me.el);
d.hidden = false;
const hub = me.L.harbor_caps?.datasets.find((x) => x.name === me.taskPage.split)?.hub;
const rel = hub && typeof t.task_id === "string" && t.task_id.startsWith(me.taskPage.split + "/") ? t.task_id.slice(me.taskPage.split.length + 1) : null;
const title = t.task_name || t.title || t.task_id || t.id || `Task ${idx + 1}`;
const link = new URL(location.href);
link.search = new URLSearchParams({ env: me.taskPage.env, split: me.taskPage.split, task: idx });
link.hash = "sec-tasks";
const canPlay = me.L.openenv && !me.L.harbor && me.taskPage.env === me.L.task_api.env;
d.innerHTML = `<div class="tk-detail-h"><div class="tk-title"><small>Task ${fmt.format(me.taskPage.start + i + 1)} · ${esc(shortSplit(me.taskPage.split))}</small><b title="${esc(title)}">${esc(title)}</b></div>
<button class="icon-btn sm" type="button" data-task-move="-1" aria-label="Previous task in this page" ${i === 0 ? "disabled" : ""}>${icon("chevronRight", 15, "flip")}</button>
<button class="icon-btn sm" type="button" data-task-move="1" aria-label="Next task in this page" ${i + 1 === me.tasks.length ? "disabled" : ""}>${icon("chevronRight", 15)}</button>
<button class="icon-btn sm" type="button" id="tk-close" aria-label="Close task">${icon("x", 15)}</button></div>
<div class="tk-actions"><a class="btn sm" href="${esc(link.href)}">Open task page</a>${copyBtn(link.href, "Copy task link")}
${rel ? `<a class="btn sm" href="/t/${enc(hub)}/${enc(rel)}" title="Open it in the explorer, where it runs on your account">${icon("database", 13)}Open in the explorer</a>` : ""}
${canPlay ? `<button class="btn sm primary" type="button" data-play-task="${esc(idx)}">${icon("play", 13)}Start this task</button>` : ""}</div>
<div class="tk-detail-b">${taskContent(t)}<p class="fine" id="tk-full-status" role="status">Loading the full task…</p></div>`;
d.scrollIntoView({ block: "nearest", behavior: "smooth" });
const updateTaskMeta = (task) => {
const q = new URLSearchParams(location.search);
if (q.get("task") === String(idx) && q.get("env") === me.taskPage.env && q.get("split") === me.taskPage.split) {
const prompt = [task.prompt, task.instruction, task.description, task.question].find((v) => typeof v === "string") || "";
setMeta({ title: `${title} · ${me.spec}`, description: `${title}: ${me.taskPage.split} task in ${me.spec}, an RL environment on the Hugging Face Hub. ${prompt}` });
const heading = $(".tp-head h1", me.el);
if (heading) heading.textContent = title;
}
};
updateTaskMeta(t);
try {
const full = await api(`/api/spaces/${enc(me.spec)}/task?${new URLSearchParams({ env: me.taskPage.env, split: me.taskPage.split, index: idx })}`);
if (page !== me || requestKey !== me.taskRequest || me.selectedTask !== i || !d.isConnected || d.hidden) return;
if (full.task && typeof full.task === "object" && !Array.isArray(full.task)) {
$(".tk-detail-b", d).innerHTML = taskContent(full.task);
updateTaskMeta(full.task);
} else $("#tk-full-status", d).textContent = "Showing the task record returned by the list endpoint.";
} catch (error) {
if (page === me && requestKey === me.taskRequest && me.selectedTask === i && d.isConnected && !d.hidden)
$("#tk-full-status", d).textContent = `Showing the list record. Full task unavailable: ${error.message}`;
}
}
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