React Hono Val Town Starter

[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_284":285,"_286":287},"routes/_app.x.$handle.$name",{"_100":99,"_32":45,"_109":90,"_27":110,"_13":14,"_111":-5,"_11":112,"_113":114,"_115":116,"_117":118,"_119":120,"_20":-5,"_121":-5,"_122":-5,"_123":49,"_124":125,"_126":25,"_127":-5,"_128":-5,"_129":130},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_43":44,"_32":45,"_38":46,"_47":-5,"_48":49,"_50":51,"_52":51,"_53":54,"_55":-5,"_18":56,"_57":58,"_59":25,"_60":-5,"_61":-5,"_62":63,"_64":65,"_66":67,"_68":69,"_70":71,"_72":-5,"_73":74,"_75":74,"_76":77,"_78":77,"_79":77,"_80":74,"_81":74,"_82":83,"_84":85,"_86":87,"_88":49},"version",9,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":33,"_34":35,"_36":37,"_38":39,"_40":14,"_41":42,"_24":25},"previous",{"_30":31,"_32":33,"_34":35,"_36":37},"deleted",true,"deletedHere","path","frontend/root.tsx","latestPath","fileId","01a039bc-e9a8-70ef-b2b9-6ffe129acc06","name","root.tsx","fileType","script","content","/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"\")}\n \n \n \n \n React Hono Val Town Starter\n `,\n );\n});\n\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\napp.onError((err) => Promise.reject(err));\n\nexport default app.fetch;\n",[158],"bee9e452-ab12-4a90-94d3-b15eb9af58a4","config.ts","c202bdca-a0a1-11f1-ac87-1607ee4eb77e",["D",1787675203026],"// ============================================================================\n// CONFIG — everything you'd want to tune lives here.\n//\n// The business profile and guardrails below are lifted from the SMS sales rep\n// val on purpose: the after-hours web chat should say exactly what the SMS rep\n// says. If you change pricing or service areas, change it in BOTH places.\n// ============================================================================\n\n/** Business hours, in America/New_York. Outside these, the bot takes over. */\nexport const HOURS = {\n timeZone: \"America/New_York\",\n // 0 = Sunday. Closed Sunday; 8am-5pm Mon-Sat.\n open: { 1: [8, 17], 2: [8, 17], 3: [8, 17], 4: [8, 17], 5: [8, 17], 6: [8, 17] } as Record<\n number,\n [number, number]\n >,\n};\n\n/** Force the bot on regardless of the clock — set env FORCE_BOT=true while testing. */\nexport const forceBot = () => Deno.env.get(\"FORCE_BOT\") === \"true\";\n\nexport const MODEL = \"claude-opus-5\";\nexport const MAX_TOKENS = 2000;\n/** Chat replies are short; low effort keeps time-to-first-token snappy. */\nexport const EFFORT = \"low\";\n/** Per-session turns kept in context. Oldest dropped first. */\nexport const MAX_HISTORY_MESSAGES = 30;\n\nexport const FALLBACK_REPLY =\n \"Sorry — I'm having a technical problem on my end. Please call the office at 973-913-4568 (8am-5pm Mon-Sat) or email info@tribecabeverage.com and we'll take care of you.\";\n\nconst BUSINESS_PROFILE = `\nBusiness name: TriBeCa Beverage Company\nWhat we do: Bottled water delivery for homes and businesses, plus water cooler\nrentals and service.\n\nProducts and services:\n - 5-gallon bottled water delivery (spring, alkaline, or distilled) —\n starting at $24.98/month, minimum 2 bottles per delivery. Orders of more\n than 8 bottles need a custom delivery schedule set up by the office.\n - 3-gallon jugs (plastic or glass)\n - 5-gallon glass bottles (spring, alkaline, distilled)\n - Name brands: Poland Spring 5-gallon; Poland Spring 16.9oz 40-packs;\n Saratoga spring/sparkling glass 28oz 12-packs; Mountain Valley\n spring/sparkling glass 1-liter 12-packs (office confirms pricing on these)\n - Water cooler rental: $8/month cold-only, $12/month hot & cold.\n Bottom-load cooler +$8/month; hot & cold top-load +$4/month.\n - Water pump: one-time $16\n - Dispenser cleaning, water filtration systems, private-label bottled water\n (office quotes these)\n\nDelivery frequency: weekly, biweekly, monthly, or every other month.\n\nService areas: NYC, Long Island, Rockland County NY; North/Central/South\nJersey and Hudson County NJ; Connecticut; Washington DC; Florida (Tampa,\nMiami, West Palm Beach, Sarasota); California (Los Angeles, Orange County).\n\nOffice / escalation contact: 973-913-4568 or info@tribecabeverage.com,\n23 Carol Street, Clifton NJ 07014. Hours 8am-5pm Monday-Saturday, closed\nSunday. Website: tribecabeverage.com\n`;\n\nexport const SYSTEM_PROMPT =\n `You are the after-hours chat assistant on tribecabeverage.com, the website for TriBeCa Beverage Company. The office is CLOSED right now — that is the whole reason you are answering instead of a person.\n\n${BUSINESS_PROFILE}\n\nYour job, in priority order:\n1. Answer the visitor's question if the profile above covers it.\n2. Get enough contact information that the office can follow up: a name, a phone number or email, and roughly where they are (town or ZIP).\n3. Set the right expectation — someone from the office will follow up the next business day (the office is open 8am-5pm Monday-Saturday, closed Sunday).\n\nStyle:\n- This is a small chat window. Keep replies to 2-4 short sentences. No markdown, no bullet lists, no headings, no emoji unless they use one first.\n- Warm and direct. Answer what was asked, then ask at most one thing back.\n- Ask for contact details naturally, once you've actually been helpful — not in your first message.\n\nHard rules — these matter more than being helpful:\n- Only quote prices that appear in the profile above. For anything without a listed price (name brands, filtration, dispenser cleaning, private label, orders over 8 bottles), say the office will confirm pricing. Never invent or estimate a number.\n- Never promise a specific delivery date, delivery window, or discount. The office confirms all scheduling.\n- You cannot place an order, change an existing order, process a payment, or cancel service. You take the details down and the office handles it. Say so plainly if asked.\n- If you don't know something, say you don't know and that the office will confirm. Do not guess.\n- If they are upset, ask for a human, or raise anything outside the profile above, give them the office number: 973-913-4568, open 8am-5pm Monday-Saturday.\n- Never claim to be a human. If asked, say you're an automated assistant and the office follows up in the morning.`;\n",[166],"cea14d3e-6069-4afe-b970-cf9def9673cf","agent.ts","df287cfa-a0a1-11f1-afef-1607ee4eb77e",4,["D",1787675251919],"import Anthropic from \"npm:@anthropic-ai/sdk\";\nimport { email } from \"https://esm.town/v/std/email\";\nimport { EFFORT, MAX_TOKENS, MODEL, SYSTEM_PROMPT } from \"./config.ts\";\nimport { getLead, isReachable, type Lead, saveLead, type Turn } from \"./store.ts\";\n\nlet _client: Anthropic | null = null;\nfunction client(): Anthropic {\n if (!_client) {\n const apiKey = Deno.env.get(\"ANTHROPIC_API_KEY\");\n if (!apiKey) throw new Error(\"ANTHROPIC_API_KEY is not set on this val\");\n _client = new Anthropic({ apiKey });\n }\n return _client;\n}\n\n/**\n * Stream the assistant's reply. Returns the Anthropic stream so the caller can\n * relay deltas to the browser and still await the final message afterwards.\n */\nexport function replyStream(history: Turn[]) {\n return client().messages.stream({\n model: MODEL,\n max_tokens: MAX_TOKENS,\n // Stable prefix first so it can cache; note the minimum cacheable prefix is\n // ~1024 tokens — under that this is a no-op rather than an error.\n system: [{ type: \"text\", text: SYSTEM_PROMPT, cache_control: { type: \"ephemeral\" } }],\n thinking: { type: \"adaptive\" },\n output_config: { effort: EFFORT },\n messages: history.map((t) => ({ role: t.role, content: t.content })),\n });\n}\n\nconst EXTRACT_TOOL = {\n name: \"record_lead\",\n description:\n \"Record whatever contact details the visitor has given so far. Use null for anything they have not actually said — never guess or infer.\",\n input_schema: {\n type: \"object\" as const,\n properties: {\n name: { type: [\"string\", \"null\"], description: \"Visitor's name, if given\" },\n phone: { type: [\"string\", \"null\"], description: \"Phone number, digits as given\" },\n email: { type: [\"string\", \"null\"], description: \"Email address\" },\n location: { type: [\"string\", \"null\"], description: \"Town, city, or ZIP\" },\n interest: {\n type: [\"string\", \"null\"],\n description: \"One short line on what they want (product, quantity, cooler, problem)\",\n },\n },\n required: [\"name\", \"phone\", \"email\", \"location\", \"interest\"],\n },\n};\n\n/** Worth running an extraction pass? Cheap gate so we don't bill a call per turn. */\nexport function looksLikeContactInfo(text: string): boolean {\n return /\\d{3}|@|\\bzip\\b|\\bcall me\\b|\\bemail\\b|\\bmy name is\\b/i.test(text);\n}\n\n/**\n * Pull contact details out of the transcript and merge them into the stored\n * lead. Never clears a field we already have — visitors correct themselves, but\n * a later turn that simply doesn't mention the phone shouldn't erase it.\n */\nexport async function extractLead(sessionId: string, history: Turn[]): Promise {\n const transcript = history\n .map((t) => `${t.role === \"user\" ? \"Visitor\" : \"Assistant\"}: ${t.content}`)\n .join(\"\\n\");\n\n const res = await client().messages.create({\n model: MODEL,\n max_tokens: 1000,\n output_config: { effort: \"low\" },\n tools: [EXTRACT_TOOL],\n tool_choice: { type: \"tool\", name: \"record_lead\" },\n messages: [{\n role: \"user\",\n content:\n `Extract the visitor's contact details from this website chat transcript.\\n\\n${transcript}`,\n }],\n });\n\n const block = res.content.find((b) => b.type === \"tool_use\");\n if (!block || block.type !== \"tool_use\") return null;\n const found = block.input as Record;\n\n const now = new Date().toISOString();\n const existing = await getLead(sessionId);\n const merged: Lead = {\n sessionId,\n name: found.name ?? existing?.name ?? null,\n phone: found.phone ?? existing?.phone ?? null,\n email: found.email ?? existing?.email ?? null,\n location: found.location ?? existing?.location ?? null,\n interest: found.interest ?? existing?.interest ?? null,\n firstSeen: existing?.firstSeen ?? now,\n lastSeen: now,\n notified: existing?.notified ?? false,\n };\n await saveLead(merged);\n\n // Email the office the first time we can actually reach this person.\n if (!merged.notified && isReachable(merged)) {\n try {\n await notifyOffice(merged, transcript);\n merged.notified = true;\n await saveLead(merged);\n } catch (err) {\n // Leave notified=false so the next turn retries the send.\n console.error(\"Lead notification email failed:\", err);\n }\n }\n return merged;\n}\n\nasync function notifyOffice(lead: Lead, transcript: string) {\n const to = Deno.env.get(\"NOTIFY_EMAIL\"); // unset -> std/email defaults to the val owner\n const line = (label: string, v?: string | null) => `${label}: ${v || \"-\"}`;\n await email({\n ...(to ? { to } : {}),\n subject: `After-hours web chat lead — ${lead.name || lead.phone || lead.email || \"unknown\"}`,\n text: [\n \"Someone chatted with the after-hours assistant on tribecabeverage.com.\",\n \"\",\n line(\"Name\", lead.name),\n line(\"Phone\", lead.phone),\n line(\"Email\", lead.email),\n line(\"Location\", lead.location),\n line(\"Wants\", lead.interest),\n line(\"Started\", lead.firstSeen),\n \"\",\n \"--- transcript ---\",\n transcript,\n ].join(\"\\n\"),\n });\n}\n",[172],"5ec37cbd-809b-4d06-a911-40810dc29c4f","README.md","01a039bc-e9a8-70ef-b2b9-7a918f882bb2",["D",1787675076940],"# React + Hono Starter\n\nA minimal starter template for building client-side React apps with a Hono\nbackend on Val Town. Click **Remix** to get your own copy.\n\n## Picking a starter\n\n| Starter | When to pick it |\n| --- | --- |\n| [`basic-html-starter`](https://www.val.town/x/templates/basic-html-starter) | Static HTML pages. Sprinkle of vanilla JS. No server-side rendering. |\n| [`hono-jsx-starter`](https://www.val.town/x/templates/hono-jsx-starter) | Dynamic server-rendered HTML with JSX. API routes. No React, no SPA. |\n| **[`react-hono-starter`](https://www.val.town/x/templates/react-hono-starter)** *(you're here)* | Client-side React SPA with a Hono API backend. |\n\n**Want to build UI?** Start writing React components in\n[`frontend/components/`](/frontend/components/). Import them into `App.tsx` and\nyou're good to go. Styling is [Twind](https://twind.style/) — just use Tailwind\nutility classes, zero config.\n\n**Want to add an API?** Add routes in [`index.ts`](/index.ts) (there's a\ncommented-out example). Fetch them from your React components.\n\n## Architecture\n\n```mermaid\ngraph LR\n Browser -->|\"GET /\"| Hono[\"index.ts
(Hono server)\"]\n Hono -->|serves| HTML[\"root.tsx\"]\n HTML -->|loads| Entry[\"index.tsx\"]\n Entry -->|renders| App[\"App.tsx\"]\n App -->|renders| Counter[\"Counter.tsx\"]\n```\n\n## File structure\n\n```\nindex.ts ← Hono backend (serves frontend + API routes)\nfrontend/\n root.tsx ← HTML shell (stamps immutable asset URLs)\n index.tsx ← React entrypoint (mounts )\n favicon.svg ← App icon\n components/\n App.tsx ← Root component (layout + view source link)\n Counter.tsx ← Example component with state\n```\n\n## How it works\n\n1. **`index.ts`** is the HTTP entrypoint — a Hono server that serves the\n frontend and any API routes you add.\n2. **`frontend/root.tsx`** is the HTML shell — it loads Twind and stamps\n immutable asset URLs for the favicon and React entrypoint.\n3. **`frontend/index.tsx`** mounts the React app.\n4. **`frontend/components/App.tsx`** is the root layout — add new components\n alongside it.\n5. **`frontend/components/Counter.tsx`** is an example stateful component —\n replace it with your own!\n\n## Next steps\n\n- Add API routes in `index.ts`\n- Add new components in `frontend/components/`\n- Add a SQLite database — see the\n [React Hono Example](https://www.val.town/x/stevekrouse/reactHonoExample) for\n a full-stack example with database, queries, and shared types\n\nTemplate updates and upgrade paths for existing remixes: [CHANGELOG.md](/CHANGELOG.md)\n",[179],"5518f1a0-f980-467d-85ce-59331b3e55d0","CHANGELOG.md","01a039bc-e9a8-70ef-b2b9-7551e658384c",["D",1787675076940],"# Changelog\n\n## 2026-07-30 — Immutable asset caching\n\nFrontend files are now served at version-addressed URLs\n(`/__immutable/45/frontend/index.tsx`) with\n`Cache-Control: public, max-age=31536000, immutable`, so repeat visits load the\nwhole client graph from the browser cache — roughly 3× faster (~665ms → ~157ms\nmeasured). Publishing your val bumps its version, which changes every URL, so\ncaches invalidate automatically. Old-version URLs return 404 after a publish\n(like Next.js build assets); a reload picks up the new version.\n\nWhat changed in the template:\n\n- `frontend/index.html` → [`frontend/root.tsx`](/frontend/root.tsx): the HTML\n shell is now JSX and stamps asset URLs with `immutableFileUrl()`\n- [`index.ts`](/index.ts): serves `Root()` at `/`, and one\n `app.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path))` route\n serves all frontend files\n\n### Upgrading an existing remix\n\nYour copy of this template doesn't update automatically. Two options:\n\n**Minimal (most of the benefit):** point both routes at `serveImmutableFile` —\nyour existing bare URLs redirect into versioned space, the new route serves\nthem, and the whole module graph gets cached (costs one redirect per page view):\n\n```ts\nimport { serveImmutableFile } from \"https://esm.town/v/std/utils/index.ts\";\n\napp.get(\"/__immutable/*\", (c) => serveImmutableFile(c.req.path));\napp.get(\"/frontend/**/*\", (c) => serveImmutableFile(c.req.path)); // was serveFile\n```\n\n**Full upgrade (also removes the redirect):** three self-contained steps —\nno other files needed. Adjust the ``, favicon, and body of `Root()` to\nmatch your app's existing `index.html`, and stamp anything else your shell\nreferences directly (images, css) with `immutableFileUrl()`.\n\n1. Create `frontend/root.tsx`:\n\n```tsx\n/** @jsxImportSource npm:hono@4/jsx */\nimport { raw } from \"npm:hono@4/html\";\nimport { immutableFileUrl } from \"https://esm.town/v/std/utils/index.ts\";\n\n// The HTML shell for the app. It is never cached, so immutableFileUrl can stamp\n// the current val version into each asset URL — the browser caches those\n// immutably, and publishing the val changes the URLs, refetching exactly once.\nexport function Root() {\n return (\n <>\n {raw(\"<!DOCTYPE html>\")}\n <html lang=\"en\">\n <head>\n <meta charSet=\"UTF-8\" />\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n <title>React Hono Val Town Starter\n

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