\n {run.model}\n {running && working}\n {provider?.kind === \"turn\" && (\n via {provider.stats.provider}\n )}\n

\n\n {run.text &&

{run.text}

}\n\n {run.events.length > 0 && (\n

\n \n turn {e.stats.index}{\" \"}\n {num(e.stats.completionTokens)} tok · first token {ms(e.stats.ttftMs)}{e.stats.totalMs - e.stats.ttftMs > 50 ? ` · ${num(e.stats.tokensPerSecond)} tok/s` : \"\"}\n \n {ms(e.stats.totalMs)}\n
\n {e.name} {e.args}\n {ms(e.ms)}\n

\n )}\n\n {run.totals && (\n

\n ✓ {run.totals.turns} turn{run.totals.turns === 1 ? \"\" : \"s\"}, {run.totals.toolCalls} tool call{run.totals.toolCalls === 1 ? \"\" : \"s\"}, {num(run.totals.completionTokens)} tokens, {usd(run.totals.cost)} · {ms(run.totals.roundTripMs)}\n

\n )}\n {run.error && (\n

\n {run.error}\n

\n )}\n

\n );\n}\n\nexport function ChatPanel({\n feed,\n loading,\n model,\n defaults,\n models,\n onModelChange,\n onSend,\n onReset,\n}: {\n feed: FeedItem[];\n loading: boolean;\n model: string;\n defaults: string[];\n models: ModelOption[];\n onModelChange: (model: string) => void;\n onSend: (instruction: string) => void;\n onReset: () => void;\n}) {\n const [draft, setDraft] = useState(\"\");\n const [providers, setProviders] = useState<{ tag: string; name: string }[]>([]);\n const scrollRef = useRef(null);\n\n // Suggest provider pins for the currently-typed model slug.\n const baseSlug = model.split(\"@\")[0].trim();\n useEffect(() => {\n setProviders([]);\n if (!/^[\\w.-]+\\/[\\w.:-]+$/.test(baseSlug)) return;\n let cancelled = false;\n const t = setTimeout(() => {\n fetch(`/api/providers?model=${encodeURIComponent(baseSlug)}`)\n .then((r) => r.json())\n .then((d) => {\n if (!cancelled) setProviders(d.providers ?? []);\n })\n .catch(() => {});\n }, 300);\n return () => {\n cancelled = true;\n clearTimeout(t);\n };\n }, [baseSlug]);\n\n useEffect(() => {\n scrollRef.current?.scrollTo({ top: scrollRef.current.scrollHeight, behavior: \"smooth\" });\n }, [feed, loading]);\n\n function submit() {\n const text = draft.trim();\n if (!text || loading) return;\n onSend(text);\n setDraft(\"\");\n }\n\n return (\n

OpenRouter Coder

\n Any model on{\" \"}\n OpenRouter{\" \"}\n builds and edits a page with tools\n

\n {feed.length > 0 && (\n \n )}\n

\n\n

\n Model\n onModelChange((e.target as HTMLInputElement).value)}\n placeholder=\"provider/model-slug\"\n spellCheck={false}\n className=\"mt-1 w-full rounded-lg border border-gray-300 px-3 py-1.5 font-mono text-xs focus:border-transparent focus:outline-none focus:ring-2 focus:ring-blue-500\"\n />\n \n {models.map((m) => )}\n \n {providers.length > 0 && (\n

\n provider:\n {providers.map((p) => {\n const pinned = model === `${baseSlug}@${p.tag}`;\n return (\n onModelChange(pinned ? baseSlug : `${baseSlug}@${p.tag}`)}\n title={p.name}\n className={`cursor-pointer rounded-full border px-2 py-0.5 font-mono text-[10px] ${\n pinned\n ? \"border-amber-500 bg-amber-50 text-amber-700\"\n : \"border-gray-200 text-gray-500 hover:border-gray-300\"\n }`}\n >\n {p.tag}\n \n );\n })}\n

\n )}\n

\n {defaults.map((slug) => (\n onModelChange(slug)}\n className={`cursor-pointer rounded-full border px-2 py-0.5 font-mono text-[10px] ${\n model === slug\n ? \"border-blue-500 bg-blue-50 text-blue-700\"\n : \"border-gray-200 text-gray-500 hover:border-gray-300\"\n }`}\n >\n {slug.replace(/^[^/]+\\//, \"\")}\n \n ))}\n

\n\n

\n {feed.length === 0 && (\n

Pick a model, describe a page. Then ask for changes: the model reads and edits the files with tools, and the page re-renders after every edit.

\n {EXAMPLES.map((example) => (\n onSend(example)}\n className=\"block w-full cursor-pointer rounded-lg border border-gray-200 bg-white px-3 py-2 text-left hover:border-blue-400 hover:text-blue-700\"\n >\n {example}\n \n ))}\n

\n )}\n\n {feed.map((item, i) => item.kind === \"user\"\n ? (\n

\n {item.text}\n

\n )\n : )}\n

\n\n

\n setDraft((e.target as HTMLTextAreaElement).value)}\n onKeyDown={(e) => {\n if (e.key === \"Enter\" && !e.shiftKey) {\n e.preventDefault();\n submit();\n }\n }}\n rows={2}\n placeholder=\"Describe a page, or a change to it… (Enter to send)\"\n className=\"w-full resize-none rounded-lg border border-gray-300 px-3 py-2 text-sm focus:border-transparent focus:outline-none focus:ring-2 focus:ring-blue-500\"\n />\n \n {loading ? \"Working…\" : \"Send\"}\n \n

\n view source\n

\n );\n}\n",2,"01a068e0-b6d8-7223-92f5-ba40f0769b95",["D",1788466244212],"branchVersion","label",[208,209,72],"frontend","components","pulls","branches",3,"forks","envVars",{"_218":202,"_220":26},"connections",{"_218":26,"_219":26},"count","unfilledCount","emptyCount",{"_34":319,"_13":208,"_70":268,"_44":-5,"_36":37,"_205":41,"_237":108,"_38":320,"_40":26,"_73":316,"_200":-5,"_75":24,"_206":-5,"_240":321,"_17":322},{"_34":314,"_13":209,"_70":203,"_44":268,"_36":37,"_205":41,"_237":108,"_38":315,"_40":26,"_73":316,"_200":-5,"_75":24,"_206":-5,"_240":317,"_17":318},{"_34":306,"_13":307,"_70":308,"_44":203,"_36":37,"_205":309,"_237":108,"_38":310,"_40":41,"_73":74,"_200":311,"_75":24,"_206":-5,"_240":312,"_17":313},{"_34":199,"_13":72,"_70":71,"_44":203,"_36":37,"_205":89,"_237":108,"_38":303,"_40":202,"_73":74,"_200":201,"_75":24,"_206":-5,"_240":304,"_17":305},{"_34":295,"_13":296,"_70":297,"_44":203,"_36":37,"_205":298,"_237":108,"_38":299,"_40":41,"_73":74,"_200":300,"_75":24,"_206":-5,"_240":301,"_17":302},{"_34":287,"_13":288,"_70":289,"_44":203,"_36":37,"_205":290,"_237":108,"_38":291,"_40":41,"_73":74,"_200":292,"_75":24,"_206":-5,"_240":293,"_17":294},{"_34":280,"_13":281,"_70":282,"_44":268,"_36":37,"_205":41,"_237":108,"_38":283,"_40":26,"_73":21,"_200":284,"_75":24,"_206":-5,"_240":285,"_17":286},{"_34":273,"_13":274,"_70":275,"_44":268,"_36":37,"_205":41,"_237":108,"_38":276,"_40":26,"_73":21,"_200":277,"_75":24,"_206":-5,"_240":278,"_17":279},{"_34":265,"_13":266,"_70":267,"_44":268,"_36":37,"_205":41,"_237":108,"_38":269,"_40":26,"_73":74,"_200":270,"_75":24,"_206":-5,"_240":271,"_17":272},{"_34":258,"_13":259,"_70":260,"_44":-5,"_36":37,"_205":134,"_237":108,"_38":261,"_40":41,"_73":21,"_200":262,"_75":24,"_206":-5,"_240":263,"_17":264},{"_34":251,"_13":252,"_70":253,"_44":-5,"_36":37,"_205":202,"_237":108,"_38":254,"_40":26,"_73":74,"_200":255,"_75":24,"_206":-5,"_240":256,"_17":257},{"_34":243,"_13":244,"_70":245,"_44":-5,"_36":37,"_205":212,"_237":108,"_38":246,"_40":41,"_73":247,"_200":248,"_75":24,"_206":-5,"_240":249,"_17":250},{"_34":234,"_13":235,"_70":236,"_44":-5,"_36":37,"_205":41,"_237":108,"_38":238,"_40":26,"_73":74,"_200":239,"_75":24,"_206":-5,"_240":241,"_17":242},"5b811d57-f901-4544-98bd-66379ddddcc4","openrouter.ts","01a068e0-b6d8-7223-92f5-d76a67f32bd3","latest",["D",1788465952496],"const ENDPOINT = \"https://openrouter.ai/api/v1/chat/completions\";\nconst MAX_TOKENS = 8192;\n\n// Shown as one-click defaults in the UI; any OpenRouter slug works, with an\n// optional \"@provider-tag\" suffix to pin a specific serving endpoint.\nexport const DEFAULT_MODELS = [\n \"moonshotai/kimi-k3@fireworks/fast\",\n \"anthropic/claude-opus-5-fast\",\n \"openai/gpt-5.6-luna\",\n \"google/gemini-3.6-flash\",\n \"z-ai/glm-5.2\",\n \"x-ai/grok-4.5\",\n];\n\nconst SYSTEM = `You write one complete HTML document, streamed top-to-bottom into a live browser.\n- Output raw HTML only: no prose, no code fences, no explanation.\n- Start with and end with , then stop.\n- In , include exactly this stylesheet setup: \n- Style everything with Tailwind utility classes (arbitrary values like h-[40%] are fine). No \n \n \n

\n \n \n \n\n",[],[208,274],"46f7baa8-1eaf-400d-8128-6dc2ac2ab6d4","favicon.svg","01a068e0-b6d8-7223-92f5-beffebc7cd6a",["D",1788465952496],"\n",[],[208,281],"8cc63ef1-6c71-4496-9196-3a5a63408ef3","PreviewPanel.tsx","01a068e0-b6d8-7223-92f5-b5f0a0dc50c5",4,["D",1788466055948],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useRef, useState } from \"https://esm.sh/react@18.2.0\";\nimport type { MutableRefObject } from \"https://esm.sh/react@18.2.0\";\n\nexport interface PreviewHandle {\n render: (html: string) => void;\n clear: () => void;\n}\n\n// The preview iframe. Every file change re-renders the whole page; the iframe needs\n// allow-same-origin so the parent can write into contentDocument.\nexport function PreviewPanel({ handleRef }: { handleRef: MutableRefObject }) {\n const iframeRef = useRef(null);\n const [started, setStarted] = useState(false);\n\n useEffect(() => {\n handleRef.current = {\n render(html) {\n setStarted(true);\n const doc = iframeRef.current?.contentDocument;\n if (!doc) return;\n try {\n doc.open();\n doc.write(html);\n doc.close();\n } catch {\n // iframe not ready yet\n }\n },\n clear() {\n setStarted(false);\n const doc = iframeRef.current?.contentDocument;\n try {\n doc?.open();\n doc?.close();\n } catch {\n // ignore\n }\n },\n };\n return () => {\n handleRef.current = null;\n };\n }, []);\n\n return (\n

\n Preview\n

\n\n

\n \n {!started && (\n

\n Nothing built yet.\n

\n )}\n

\n );\n}\n",[],[208,209,288],"a6416a22-ac72-4d0f-b175-7237bb2f3a6d","CodePanel.tsx","01a068e0-b6d8-7223-92f5-b3495a272031",5,["D",1788466067621],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useMemo, useRef } from \"https://esm.sh/react@18.2.0\";\nimport hljs from \"https://esm.sh/highlight.js@11.9.0/lib/core\";\nimport xml from \"https://esm.sh/highlight.js@11.9.0/lib/languages/xml\";\nimport javascript from \"https://esm.sh/highlight.js@11.9.0/lib/languages/javascript\";\nimport css from \"https://esm.sh/highlight.js@11.9.0/lib/languages/css\";\n\nhljs.registerLanguage(\"xml\", xml);\nhljs.registerLanguage(\"javascript\", javascript);\nhljs.registerLanguage(\"css\", css);\n\nfunction languageFor(path: string) {\n if (/\\.(js|mjs|ts)$/.test(path)) return \"javascript\";\n if (/\\.css$/.test(path)) return \"css\";\n return \"xml\";\n}\n\n// Middle column: the workspace. One tab per file, the selected file highlighted.\nexport function CodePanel(\n { files, selected, onSelect, busy }: {\n files: Record;\n selected: string;\n onSelect: (path: string) => void;\n busy: boolean;\n },\n) {\n const scrollRef = useRef(null);\n const paths = Object.keys(files);\n const code = files[selected] ?? \"\";\n\n const highlighted = useMemo(() => {\n if (!code) return \"\";\n try {\n return hljs.highlight(code, { language: languageFor(selected) }).value;\n } catch {\n return null;\n }\n }, [code, selected]);\n\n useEffect(() => {\n scrollRef.current?.scrollTo({ top: 0 });\n }, [selected]);\n\n return (\n

\n {paths.length === 0 && Workspace}\n {paths.map((p) => (\n onSelect(p)}\n className={`cursor-pointer rounded px-2 py-0.5 font-mono text-[11px] ${p === selected ? \"bg-gray-700 text-gray-100\" : \"text-gray-400 hover:text-gray-200\"}`}\n >\n {p}\n \n ))}\n {busy && }\n

\n {code && (\n navigator.clipboard.writeText(code)}\n className=\"text-[11px] px-2 py-1 rounded border border-gray-700 text-gray-400 hover:bg-gray-800 transition-colors cursor-pointer\"\n >\n Copy\n \n )}\n

\n\n \n {!code\n ? Files appear here as the agent writes them.\n : highlighted\n ? \n : {code}}\n \n

\n  );\n}\n",[],[208,209,296],["D",1788466244212],[],[208,209,72],"ab16da26-4ce1-429f-9c02-039969e49fe4","App.tsx","01a068e0-b6d8-7223-92f5-aaa5a9dca8cb",6,["D",1788466101347],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport { useEffect, useRef, useState } from \"https://esm.sh/react@18.2.0\";\nimport { ChatPanel } from \"./ChatPanel.tsx\";\nimport { CodePanel } from \"./CodePanel.tsx\";\nimport { PreviewPanel } from \"./PreviewPanel.tsx\";\nimport type { PreviewHandle } from \"./PreviewPanel.tsx\";\n\nexport interface TurnStats {\n  index: number;\n  model: string;\n  provider: string;\n  ttftMs: number;\n  totalMs: number;\n  completionTokens: number;\n  promptTokens: number;\n  cost: number;\n  tokensPerSecond: number;\n  toolCalls: number;\n}\n\nexport type RunEvent =\n  | { kind: \"turn\"; stats: TurnStats }\n  | { kind: \"tool\"; name: string; args: string; result: string; ms: number; ok: boolean };\n\nexport interface AgentRun {\n  kind: \"run\";\n  id: string;\n  model: string;\n  text: string;\n  events: RunEvent[];\n  totals?: { turns: number; toolCalls: number; totalMs: number; completionTokens: number; cost: number; roundTripMs: number };\n  error?: string;\n}\n\nexport type FeedItem = { kind: \"user\"; text: string } | AgentRun;\n\nexport interface ModelOption {\n  id: string;\n  name: string;\n}\n\nexport function App() {\n  const [feed, setFeed] = useState([]);\n  // The conversation as the model sees it, and the workspace. Both live here and go back to the server with each request.\n  const [messages, setMessages] = useState([]);\n  const [files, setFiles] = useState>({});\n  const [selected, setSelected] = useState(\"index.html\");\n  const [model, setModel] = useState(\"\");\n  const [defaults, setDefaults] = useState([]);\n  const [models, setModels] = useState([]);\n  const [loading, setLoading] = useState(false);\n  const previewRef = useRef(null);\n\n  useEffect(() => {\n    fetch(\"/api/models\")\n      .then((r) => r.json())\n      .then((d) => {\n        setDefaults(d.defaults ?? []);\n        setModels(d.models ?? []);\n        setModel((current) => current || d.defaults?.[0] || \"\");\n      })\n      .catch(() => {});\n  }, []);\n\n  function showFiles(next: Record) {\n    setFiles(next);\n    setSelected((s) => s in next ? s : \"index.html\" in next ? \"index.html\" : Object.keys(next)[0] ?? \"index.html\");\n    if (next[\"index.html\"] !== undefined) previewRef.current?.render(next[\"index.html\"]);\n  }\n\n  async function send(instruction: string) {\n    if (loading || !model.trim()) return;\n    const runId = crypto.randomUUID();\n    setLoading(true);\n    setFeed((prev) => [...prev, { kind: \"user\", text: instruction }, { kind: \"run\", id: runId, model: model.trim(), text: \"\", events: [] }]);\n    const updateRun = (update: (run: AgentRun) => AgentRun) => {\n      setFeed((prev) => prev.map((item) => item.kind === \"run\" && item.id === runId ? update(item) : item));\n    };\n    const startedAt = performance.now();\n\n    try {\n      const res = await fetch(\"/api/agent\", {\n        method: \"POST\",\n        headers: { \"Content-Type\": \"application/json\" },\n        body: JSON.stringify({ messages, files, instruction, model: model.trim() }),\n      });\n      if (!res.ok || !res.body) {\n        const err = await res.json().catch(() => ({}));\n        throw new Error(err?.error ?? `Request failed (${res.status})`);\n      }\n\n      const reader = res.body.getReader();\n      const decoder = new TextDecoder();\n      let buffer = \"\";\n      while (true) {\n        const { done, value } = await reader.read();\n        if (done) break;\n        buffer += decoder.decode(value, { stream: true });\n        const frames = buffer.split(\"\\n\\n\");\n        buffer = frames.pop() ?? \"\";\n        for (const frame of frames) {\n          const line = frame.split(\"\\n\").find((l) => l.startsWith(\"data:\"));\n          if (!line) continue;\n          const event = JSON.parse(line.slice(5).trim());\n          switch (event.type) {\n            case \"text\":\n              updateRun((run) => ({ ...run, text: run.text + event.text }));\n              break;\n            case \"turn\":\n              updateRun((run) => ({ ...run, events: [...run.events, { kind: \"turn\", stats: event.stats }] }));\n              break;\n            case \"tool\":\n              updateRun((run) => ({ ...run, events: [...run.events, { kind: \"tool\", name: event.name, args: event.args, result: event.result, ms: event.ms, ok: event.ok }] }));\n              break;\n            case \"files\":\n              showFiles(event.files);\n              break;\n            case \"done\":\n              setMessages(event.messages);\n              showFiles(event.files);\n              updateRun((run) => ({ ...run, totals: { ...event.totals, roundTripMs: performance.now() - startedAt } }));\n              break;\n            case \"error\":\n              throw new Error(event.message);\n          }\n        }\n      }\n    } catch (err) {\n      const message = err instanceof Error ? err.message : String(err);\n      updateRun((run) => ({ ...run, error: message }));\n    } finally {\n      setLoading(false);\n    }\n  }\n\n  function reset() {\n    setFeed([]);\n    setMessages([]);\n    setFiles({});\n    setSelected(\"index.html\");\n    previewRef.current?.clear();\n  }\n\n  return (\n    \n      \n      \n      \n    \n  );\n}\n",[],[208,209,307],"47ead9e1-88ea-4dbb-9783-a9b966a01cf7",["D",1788465952496],"directory",[223,224,225,226],[208,209],"0fe51db3-8ee1-454b-9181-9493f2435699",["D",1788465952496],[222,227,228,229],[208],["D",1785252223134],["D",1789561254403],{"_11":12,"_147":78},{"_11":12,"_143":-5,"_77":78,"_30":76,"_144":145,"_146":24},{"_40":134,"_13":16,"_34":37,"_135":95,"_136":66,"_137":68,"_138":99,"_139":95,"_140":43,"_141":14,"_142":12},"ctx",{"_55":-5,"_168":361,"_362":363,"_364":365,"_366":24,"_367":24,"_368":24,"_369":108,"_370":-5,"_371":-7,"_372":-7,"_373":26,"_374":24,"_375":24,"_376":-5,"_377":24,"_378":24,"_379":24,"_380":-5},"ENV",{"_332":333,"_334":335,"_336":67,"_337":338,"_339":340,"_341":342,"_343":344,"_345":346,"_347":348,"_349":350,"_351":352,"_353":354,"_355":356,"_357":358,"_359":360},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

History · ChatPanel.tsx