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last < 90) return;\n last = now;\n o.onProgress({\n chars: html.length,\n lines: html.split(\"\\n\").length,\n stage: stageFor(html.length),\n });\n };\n}\n\n// --- Anthropic -----------------------------------------------------------\n\nasync function generateAnthropic(o: GenerateOptions, user: string): Promise {\n const key = Deno.env.get(\"ANTHROPIC_API_KEY\");\n if (!key) throw new Error(\"ANTHROPIC_API_KEY is not configured.\");\n const res = await fetch(\"https://api.anthropic.com/v1/messages\", {\n method: \"POST\",\n headers: {\n \"x-api-key\": key,\n \"anthropic-version\": \"2023-06-01\",\n \"content-type\": \"application/json\",\n },\n body: JSON.stringify({\n model: o.model,\n max_tokens: 9000,\n system: SYSTEM_PROMPT,\n messages: [{ role: \"user\", content: user }],\n stream: true,\n }),\n });\n if (!res.ok) throw await providerError(\"Claude\", res);\n let html = \"\";\n const bump = throttleProgress(o, html);\n await consumeSSE(res, (type, data) => {\n if (type === \"content_block_delta\" && data?.delta?.type === \"text_delta\") {\n const t = data.delta.text;\n if (t) {\n html += t;\n bump();\n }\n } else if (type === \"error\" && data?.error) {\n throw new Error(data.error.message || \"Claude stream error\");\n }\n });\n o.onProgress({ chars: html.length, lines: html.split(\"\\n\").length, stage: stageFor(html.length) });\n return html;\n}\n\n// --- OpenAI ---------------------------------------------------------------\n\nasync function generateOpenAI(o: GenerateOptions, user: string): Promise {\n const key = Deno.env.get(\"OPENAI_API_KEY\");\n if (!key) throw new Error(\"OPENAI_API_KEY is not configured.\");\n const res = await fetch(\"https://api.openai.com/v1/chat/completions\", {\n method: \"POST\",\n headers: {\n authorization: `Bearer ${key}`,\n \"content-type\": \"application/json\",\n },\n body: JSON.stringify({\n model: o.model,\n stream: true,\n max_tokens: 9000,\n messages: [\n { role: \"system\", content: SYSTEM_PROMPT },\n { role: \"user\", content: user },\n ],\n }),\n });\n if (!res.ok) throw await providerError(\"OpenAI\", res);\n let html = \"\";\n const bump = throttleProgress(o, html);\n await consumeSSE(res, (type, data) => {\n const delta = data?.choices?.[0]?.delta?.content;\n if (delta) {\n html += delta;\n bump();\n }\n });\n o.onProgress({ chars: html.length, lines: html.split(\"\\n\").length, stage: stageFor(html.length) });\n return html;\n}\n\nasync function providerError(name: string, res: Response): Promise {\n let body = \"\";\n try {\n body = (await res.text()).slice(0, 300);\n } catch {\n /* ignore */\n }\n const status = res.status;\n if (status === 401 || status === 403) {\n return new Error(`${name} rejected the request (${status}) — your API key looks invalid or lacks access. 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Wait a moment and try again.`);\n }\n return new Error(`${name} returned HTTP ${status}: ${body || \"no details\"}`);\n}\n","createdAt",["D",1787129107801],"branchVersion","branchId","ee22e3ae-218e-4882-89bb-63b59fd716fd","id","05fc5caf-cbe7-40bf-8abe-7c6f1dc57ed5","foundry-epic",["D",1787129097801],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Foundry Epic — AI app workshop with live preview.","imageUrl","56113ce4-0f2b-402f-b46c-fc61db5ac8a6","pinnedFileId","41fa0a8a-9baa-11f1-a031-1607ee4eb77e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","01a0191e-7c9f-73d4-b196-82a6c48eaa8a","tursoName","05fc5cafcbe740bf8abe7c6f1dc57ed5","tursoHostname","05fc5cafcbe740bf8abe7c6f1dc57ed5-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789476648181],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_105":104,"_113":109},"org",{"_105":104,"_106":107,"_108":109,"_19":60,"_110":111,"_112":30},"branch",{"_13":94,"_37":95,"_48":47,"_96":49,"_97":-5,"_98":-5,"_99":-5,"_100":-5,"_101":-5,"_102":50,"_103":104},"isOwned",34,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","Et12eqtf","handle","displayName","nakkazi esther","avatar","https://lh3.googleusercontent.com/a/ACg8ocLzKaL-buMuULchK5wzcmIw74PtZiEMRxDQwszsTALglBlsIw=s96-c","tier","free","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_48":49,"_37":50,"_43":197,"_52":-5,"_53":30,"_54":55,"_56":55,"_57":58,"_59":-5,"_19":60,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":68,"_69":70,"_71":72,"_73":74,"_75":198,"_77":-5,"_78":79,"_80":79,"_81":82,"_83":82,"_84":82,"_85":79,"_86":79,"_87":199,"_89":200,"_91":201,"_93":30},"tree",[166,170],"files",[166,167,168,169,170],"counts",{"_156":68,"_157":141,"_158":68,"_159":160,"_161":162},"contents",[136,137],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_48":149,"_37":150,"_35":151,"_140":-5,"_46":47,"_45":152,"_142":64,"_43":153,"_13":68,"_39":154,"_41":-5,"_29":30,"_146":-5,"_32":155},{"_48":138,"_37":139,"_35":62,"_140":-5,"_46":47,"_45":141,"_142":30,"_43":143,"_13":68,"_39":144,"_41":145,"_29":30,"_146":147,"_32":148},"7c582c55-bec3-434d-91b5-18651b6a77ad","main.ts","parentId",1,"latest",["D",1787129097873],"http","export default async function (req: Request): Promise { return new Response(\"Foundry\"); }","label","foundry",[139],"08bd9ba8-fe3c-46b0-b5db-6a737b8f9cff","lib","4ff44d5b-fd11-4a12-a0d1-08cf71d5f9b1",2,["D",1787129107718],"directory",[150],"pulls","branches","forks","envVars",{"_163":68,"_165":68},"connections",{"_163":68,"_164":68},"count","unfilledCount","emptyCount",{"_48":149,"_37":150,"_35":151,"_140":-5,"_46":47,"_45":152,"_142":64,"_43":194,"_13":68,"_39":154,"_41":-5,"_29":30,"_146":-5,"_172":195,"_32":196},{"_48":186,"_37":187,"_35":188,"_140":151,"_46":47,"_45":189,"_142":30,"_43":190,"_13":68,"_39":40,"_41":191,"_29":30,"_146":-5,"_172":192,"_32":193},{"_48":182,"_37":38,"_35":36,"_140":151,"_46":47,"_45":14,"_142":64,"_43":183,"_13":68,"_39":40,"_41":42,"_29":30,"_146":-5,"_172":184,"_32":185},{"_48":175,"_37":176,"_35":177,"_140":151,"_46":47,"_45":152,"_142":64,"_43":178,"_13":68,"_39":40,"_41":179,"_29":30,"_146":-5,"_172":180,"_32":181},{"_48":138,"_37":139,"_35":62,"_140":-5,"_46":47,"_45":141,"_142":30,"_43":171,"_13":68,"_39":144,"_41":145,"_29":30,"_146":147,"_172":173,"_32":174},["D",1787129097873],"children",[],[139],"495c7788-2e14-48b9-a83d-10e854b469c9","prompt.ts","47d7d356-9baa-11f1-af80-1607ee4eb77e",["D",1787129107718],"// Shared prompt template, output validation, and build-stage mapping.\n\nexport const SYSTEM_PROMPT = `You are Foundry, an expert front-end engineer. You transform a plain-English brief into a single, complete, self-contained HTML file for a polished, interactive web app.\n\nProduce a complete document. Every build MUST satisfy all of the following:\n\n1. FULLY FUNCTIONAL ON LOAD. Real, working interactivity — no mockups, no dead buttons, no \"--\" placeholder values, no unimplemented features. If it's a counter it counts; if it's a game it plays; if it's a tracker it tracks.\n2. SELF-CONTAINED single HTML file. All CSS and JS inline in

Diff · v4