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// JS default sort compares UTF-16; for these ASCII codes = byte order\n}\nfunction isSafeUint(v: unknown): v is number {\n return typeof v === \"number\" && Number.isSafeInteger(v) && v >= 0;\n}\nfunction isPosSafeInt(v: unknown): v is number {\n return typeof v === \"number\" && Number.isSafeInteger(v) && v > 0;\n}\nfunction isFiniteNum(v: unknown): v is number {\n return typeof v === \"number\" && Number.isFinite(v);\n}\nfunction isStr(v: unknown): v is string {\n return typeof v === \"string\";\n}\nconst HEX40 = /^[0-9a-f]{40}$/;\nconst HEX64 = /^[0-9a-f]{64}$/;\n\n// ---------- choose ----------\nconst PRIORITY = [\"prompt_only\", \"retrieval\", \"lora\", \"qlora\"];\n\nfunction choose(body: any) {\n const policy = body.policy;\n if (\n !policy ||\n typeof policy !== \"object\" ||\n !isFiniteNum(policy.minQuality) ||\n policy.minQuality < 0 || policy.minQuality > 1 ||\n typeof policy.freshnessRequired !== \"boolean\" ||\n !isFiniteNum(policy.maxLatencyMs) || policy.maxLatencyMs < 0 ||\n !isFiniteNum(policy.maxMemoryMb) || policy.maxMemoryMb < 0 ||\n !isSafeUint(policy.maxLabeledExamples) ||\n !isFiniteNum(policy.maxTotalCost) || policy.maxTotalCost < 0 ||\n !isSafeUint(policy.horizonRequests) ||\n !Array.isArray(body.candidates)\n ) {\n return {\n selected: null,\n eligible: [],\n totalCosts: {} as Record,\n reasonCodes: [\"INVALID_INPUT\"],\n };\n }\n const p = policy;\n const byName = new Map();\n for (const c of body.candidates) {\n if (!c || typeof c !== \"object\" || !isStr(c.name)) return {\n selected: null, eligible: [],\n totalCosts: {}, reasonCodes: [\"INVALID_INPUT\"],\n };\n byName.set(c.name, c);\n }\n const totalCosts: Record = {};\n const reasonCodes = new Set();\n const eligible: string[] = [];\n\n if (!PRIORITY.every((n) => byName.has(n))) {\n return {\n selected: null, eligible: [],\n totalCosts: {}, reasonCodes: [\"INVALID_INPUT\"],\n };\n }\n\n for (const name of PRIORITY) {\n const c = byName.get(name);\n const structurallyValid =\n typeof c.available === \"boolean\" &&\n isFiniteNum(c.quality) && c.quality >= 0 && c.quality <= 1 &&\n typeof c.freshness === \"boolean\" &&\n isFiniteNum(c.latencyMs) && c.latencyMs >= 0 &&\n isFiniteNum(c.memoryMb) && c.memoryMb >= 0 &&\n isSafeUint(c.labeledExamples) &&\n isFiniteNum(c.oneTimeCost) && c.oneTimeCost >= 0 &&\n isFiniteNum(c.recurringCost) && c.recurringCost >= 0;\n if (!structurallyValid) {\n reasonCodes.add(\"INVALID_INPUT\");\n totalCosts[name] = null;\n continue;\n }\n const cost =\n Math.round((c.oneTimeCost + p.horizonRequests * c.recurringCost) * 1e12) / 1e12;\n totalCosts[name] = cost;\n if (!c.available) { reasonCodes.add(\"UNAVAILABLE\"); continue; }\n if (c.quality < p.minQuality) { reasonCodes.add(\"QUALITY_FLOOR\"); continue; }\n if (p.freshnessRequired && !c.freshness) { reasonCodes.add(\"FRESHNESS_REQUIRED\"); continue; }\n if (c.latencyMs > p.maxLatencyMs) { reasonCodes.add(\"LATENCY_LIMIT\"); continue; }\n if (c.memoryMb > p.maxMemoryMb) { reasonCodes.add(\"MEMORY_LIMIT\"); continue; }\n if (c.labeledExamples > p.maxLabeledExamples) { reasonCodes.add(\"DATA_LIMIT\"); continue; }\n if (cost > p.maxTotalCost) { reasonCodes.add(\"COST_LIMIT\"); continue; }\n eligible.push(name);\n }\n const selected = eligible.length > 0 ? eligible[0] : null;\n return {\n selected,\n eligible,\n totalCosts,\n reasonCodes: sortDedup([...reasonCodes]),\n };\n}\n\n// ---------- repair ----------\nfunction repair(body: any) {\n const r: any = {\n labels: [],\n templatePass: true,\n trainableParams: [],\n trainableCount: 0,\n peftConfigPass: true,\n adapterFiles: [\"adapter_config.json\", \"adapter_model.safetensors\"].sort(),\n checkpointComplete: true,\n lineagePass: true,\n evalIsolated: true,\n evaluationDeterministic: true,\n resumePass: true,\n };\n const codes = new Set();\n\n // tokens\n const tokens = body.tokens;\n let tokensOk = Array.isArray(tokens) && tokens.length > 0;\n if (tokensOk) {\n for (const t of tokens) {\n if (\n !t || typeof t !== \"object\" ||\n !isSafeUint(t.id) ||\n (t.role !== \"system\" && t.role !== \"user\" && t.role !== \"assistant\") ||\n typeof t.padding !== \"boolean\" ||\n typeof t.text !== \"string\"\n ) { tokensOk = false; break; }\n }\n }\n if (tokensOk) {\n r.labels = tokens.map((t: any) =>\n t.role === \"assistant\" && !t.padding ? t.id : -100\n );\n } else {\n codes.add(\"INVALID_TOKEN\");\n r.labels = Array.isArray(tokens) ? tokens.map(() => -100) : [];\n }\n\n // chat template\n if (body.templateApplications !== 1) {\n codes.add(\"CHAT_TEMPLATE_COUNT\");\n r.templatePass = false;\n }\n\n // parameters\n const params = body.parameters;\n const allowed = body.allowedTargets;\n const allowedOk = Array.isArray(allowed) && allowed.length > 0 &&\n allowed.every(isStr) && new Set(allowed).size === allowed.length;\n let paramsOk = Array.isArray(params) && allowedOk;\n if (paramsOk) {\n const names = new Set();\n for (const pm of params) {\n if (!pm || typeof pm !== \"object\" ||\n !isStr(pm.name) || !isStr(pm.target) ||\n !isPosSafeInt(pm.numel) || names.has(pm.name)) { paramsOk = false; break; }\n names.add(pm.name);\n }\n }\n if (!paramsOk) codes.add(\"INVALID_PARAMETER\");\n\n const loraTrainable: string[] = [];\n let allowedTargetParam = false;\n if (paramsOk) {\n let sum = 0;\n for (const pm of params) {\n if (allowed.includes(pm.target)) {\n allowedTargetParam = true;\n if (pm.name.endsWith(\".lora_A.weight\") || pm.name.endsWith(\".lora_B.weight\")) {\n loraTrainable.push(pm.name);\n sum += pm.numel;\n }\n }\n }\n if (!Number.isSafeInteger(sum)) {\n codes.add(\"INVALID_PARAMETER\");\n r.trainableParams = [];\n r.trainableCount = 0;\n } else {\n r.trainableParams = sortDedup(loraTrainable);\n r.trainableCount = r.trainableParams.length;\n }\n }\n if (paramsOk && (r.trainableParams.length === 0 || !allowedTargetParam)) {\n codes.add(\"FULL_MODEL_ARTIFACT\");\n r.peftConfigPass = false;\n }\n\n // inference mode\n if (body.inferenceMode !== false) {\n codes.add(\"INFERENCE_MODE\");\n r.peftConfigPass = false;\n r.evaluationDeterministic = false;\n }\n\n // eval isolation\n const trainIds = body.trainRowIds, evalIds = body.evalRowIds;\n const idsOk = (a: unknown) => Array.isArray(a) && a.length > 0 && a.every(isStr) && new Set(a).size === a.length;\n if (!idsOk(trainIds) || !idsOk(evalIds)) {\n codes.add(\"EVAL_LEAKAGE\");\n r.evalIsolated = false;\n } else {\n const ts = new Set(trainIds);\n if (evalIds.some((e: string) => ts.has(e))) {\n codes.add(\"EVAL_LEAKAGE\");\n r.evalIsolated = false;\n }\n }\n\n // dropout\n if (body.dropoutActiveDuringEval === true) {\n codes.add(\"EVAL_DROPOUT_ACTIVE\");\n r.evaluationDeterministic = false;\n }\n\n // adapter files\n const files = body.artifactFiles;\n const expected = [\"adapter_config.json\", \"adapter_model.safetensors\"];\n const filesOk = Array.isArray(files) &&\n files.length === expected.length &&\n sortDedup(files).join(\"|\") === expected.join(\"|\");\n if (!filesOk) {\n codes.add(\"ADAPTER_FILE_SET\");\n r.adapterFiles = expected.slice().sort();\n }\n\n // lineage\n const ed = (body.expectedDigests && typeof body.expectedDigests === \"object\" && !Array.isArray(body.expectedDigests))\n ? body.expectedDigests : {};\n if (typeof body.baseRevision !== \"string\" || !HEX40.test(body.baseRevision)) {\n codes.add(\"MUTABLE_BASE_REVISION\");\n r.lineagePass = false;\n }\n for (const k of [\"datasetDigest\", \"codeDigest\", \"configDigest\"]) {\n const v = body[k];\n const ek = k.replace(\"Digest\", \"\");\n if (typeof v !== \"string\" || !HEX64.test(v) ||\n (ed[ek] !== undefined && ed[ek] !== v)) {\n codes.add(\"LINEAGE_MISMATCH\");\n r.lineagePass = false;\n }\n }\n\n // batch\n const { microBatch, gradientAccumulation, replicas, expectedEffectiveBatch } = body;\n if (!isPosSafeInt(microBatch) || !isPosSafeInt(gradientAccumulation) ||\n !isPosSafeInt(replicas) || !isPosSafeInt(expectedEffectiveBatch) ||\n microBatch * gradientAccumulation * replicas !== expectedEffectiveBatch) {\n codes.add(\"EFFECTIVE_BATCH_MISMATCH\");\n }\n\n // checkpoint\n const ck = body.checkpoint;\n const needKeys = [\"model\", \"optimizer\", \"scheduler\", \"step\", \"rng\", \"dataPosition\"];\n const ckOk = ck && typeof ck === \"object\" && !Array.isArray(ck) &&\n needKeys.every((k) => k in ck && ck[k] !== undefined && ck[k] !== null);\n if (!ckOk) {\n codes.add(\"INCOMPLETE_CHECKPOINT\");\n r.checkpointComplete = false;\n }\n\n // resume\n const u = body.uninterruptedWeights, w = body.resumedWeights, tol = body.resumeTolerance;\n const arrOk = (a: unknown) => Array.isArray(a) && a.length > 0 && a.every(isFiniteNum);\n if (!arrOk(u) || !arrOk(w) || !isFiniteNum(tol) || tol < 0 || u.length !== w.length) {\n codes.add(\"RESUME_DIVERGENCE\");\n r.resumePass = false;\n } else {\n for (let i = 0; i < u.length; i++) {\n if (Math.abs(u[i] - w[i]) > tol) { codes.add(\"RESUME_DIVERGENCE\"); r.resumePass = false; break; }\n }\n }\n\n r.reasonCodes = sortDedup([...codes]);\n return r;\n}\n\nexport default async function fetchHandler(req: Request): Promise {\n const url = new URL(req.url);\n if (req.method === \"POST\" && (url.pathname === \"/adapt\" || url.pathname === \"/\")) {\n let body: any;\n try {\n const text = await req.text();\n body = JSON.parse(text);\n } catch {\n return badInput();\n }\n if (!body || typeof body !== \"object\" || Array.isArray(body)) return badInput();\n if (body.operation === \"choose\") return ok(choose(body));\n if (body.operation === \"repair\") return ok(repair(body));\n return badInput();\n }\n return ok({ service: \"peft-adapt\", endpoint: \"POST /adapt\" });\n}\n","deleted","label",[121],"pulls","branches",2,"forks","envVars",{"_144":41,"_146":41},"connections",{"_144":41,"_145":41},"count","unfilledCount","emptyCount",{"_18":120,"_20":121,"_122":123,"_124":-5,"_125":70,"_126":68,"_127":37,"_22":148,"_67":41,"_129":130,"_131":132,"_133":26,"_134":-5,"_149":150,"_89":151},["D",1787938307137],"children",[],[121],["D",1787937533419],["D",1789501263826],{"_16":17,"_87":83},{"_16":17,"_80":81,"_82":83,"_32":33,"_84":85,"_86":26},{"_67":68,"_20":69,"_18":70,"_71":19,"_72":73,"_74":68,"_75":28,"_76":19,"_77":43,"_78":21,"_79":17},"ctx",{"_60":-5,"_109":190,"_191":192,"_193":194,"_195":26,"_196":26,"_197":26,"_198":37,"_199":-5,"_200":-7,"_201":-7,"_202":41,"_203":26,"_204":26,"_205":-5,"_206":26,"_207":26,"_208":26,"_209":-5},"ENV",{"_161":162,"_163":164,"_165":115,"_166":167,"_168":169,"_170":171,"_172":173,"_174":175,"_176":177,"_178":179,"_180":181,"_182":183,"_184":185,"_186":187,"_188":189},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","5015b8df46402d8bba4f485ecc37aec202b0e06b","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"]

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