[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_105":106,"_107":108},"routes/embed.x.$handle.$name.$",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":20,"_21":-5},"handle","sebas1","name","rumbo-guardian-openai","path","main.ts","project",{"_22":45,"_11":12,"_33":46,"_47":-5,"_48":42,"_49":50,"_51":50,"_52":53,"_54":-5,"_55":56,"_57":25,"_58":42,"_59":-5,"_60":-5,"_61":62,"_63":64,"_65":-5,"_66":-5,"_67":-5,"_68":-5,"_69":70,"_71":70,"_72":73,"_74":73,"_75":73,"_76":70,"_77":70,"_78":79,"_80":81,"_82":83,"_84":42},"file",{"_22":23,"_11":14,"_24":25,"_26":-5,"_27":28,"_29":30,"_31":32,"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":12,"_13":44},"permalink","https://www.val.town/x/sebas1/rumbo-guardian-openai/code/main.ts","extension","id","7377cc5b-9b1c-47f6-8b87-0f9e8f0447a5","fileId","01a08a78-96e3-7515-851a-2056da8dec97","parentId","branchId","a41c2f5b-9cb0-404d-8cd1-2470ed7060ca","branchVersion",3,"latest",true,"createdAt",["D",1789030562453],"version",2,"fileType","http","content","import { createMcpHandler, McpServer } from \"npm:@modelcontextprotocol/server@2\";\nimport * as z from \"npm:zod@4/v4\";\n\nconst SOURCE_SHA = \"89cbd20685604a01be8b17a09584a1e7364b4fb0\";\nconst SIGNALS: Record = {\n active_content_scheme: \"The URL uses an active-content scheme such as javascript:, data:, or vbscript: and should not be treated as a normal HTTPS navigation.\",\n credentials: \"The supplied text contains credential, password, verification-code, or account-access language.\",\n urgency: \"The supplied text contains urgency or pressure language that can increase social-engineering risk.\",\n external_redirect_target: \"A recognized redirect parameter points to a different domain; Guardian analyzes the supplied destination locally without fetching it.\",\n embedded_credentials: \"The URL embeds user-information before the host, which can obscure the actual destination.\",\n};\n\nfunction riskMeta(score: number) {\n if (score >= 60) return { level: \"danger\", label: \"Alto\", verdict: \"Se detectaron múltiples señales que requieren intervención.\", guide: \"No continúes con acciones sensibles hasta verificar el origen por un canal independiente.\" };\n if (score >= 30) return { level: \"caution\", label: \"Medio\", verdict: \"Se detectaron señales que justifican una verificación adicional.\", guide: \"Validá identidad, dominio y contexto antes de compartir datos o ejecutar acciones.\" };\n return { level: \"safe\", label: \"Bajo\", verdict: \"No se detectaron señales fuertes con las reglas locales actuales.\", guide: \"Mantené la verificación contextual para acciones sensibles.\" };\n}\n\nfunction analyzeUrl(raw: string) {\n const value = raw.trim();\n const reasons: Array<{ points: number; title: string; detail: string; code: string }> = [];\n let score = 0;\n let url: URL;\n try { url = new URL(/^www\\./i.test(value) ? `https://${value}` : value); }\n catch { return { score: 0, level: \"neutral\", label: \"No válida\", domain: \"\", domainStatus: \"neutral\", url: value, reasons: [{ points: 0, title: \"URL no válida\", detail: \"No se pudo interpretar el enlace.\", code: \"invalid_url\" }], redirectTargets: [] }; }\n const host = url.hostname.toLowerCase();\n const tld = host.split(\".\").at(-1) || \"\";\n const add = (points: number, title: string, detail: string, code: string) => { score += points; reasons.push({ points, title, detail, code }); };\n if ([\"javascript:\", \"data:\", \"vbscript:\"].includes(url.protocol)) add(65, \"Esquema de contenido activo\", \"El enlace puede ejecutar o incrustar contenido sin una navegación HTTPS normal.\", \"active_content_scheme\");\n if (url.protocol === \"http:\") add(12, \"Conexión sin HTTPS\", \"La URL usa HTTP sin cifrado.\", \"http\");\n if (/^\\d{1,3}(\\.\\d{1,3}){3}$/.test(host)) add(28, \"Dirección IP directa\", \"Puede ocultar la identidad real del sitio.\", \"ip_host\");\n if (host.includes(\"xn--\")) add(18, \"Dominio codificado\", \"Puede usarse para imitar visualmente otro dominio.\", \"punycode\");\n if (new Set([\"zip\",\"mov\",\"top\",\"xyz\",\"click\",\"loan\",\"work\",\"gq\",\"tk\",\"cf\",\"ml\",\"ga\"]).has(tld)) add(14, \"Extensión de dominio sensible\", \"Requiere verificación adicional.\", \"sensitive_tld\");\n if (new Set([\"bit.ly\",\"tinyurl.com\",\"t.co\",\"is.gd\",\"cutt.ly\",\"rb.gy\",\"rebrand.ly\",\"shorturl.at\"]).has(host)) add(18, \"Enlace acortado\", \"Oculta el destino final antes de abrirlo.\", \"shortener\");\n if (url.username || url.password) add(30, \"Credenciales embebidas\", \"La URL contiene credenciales antes del host.\", \"embedded_credentials\");\n if (/login|verify|account|secure|update|password|payment|wallet|unlock|support/i.test(url.pathname + url.search)) add(12, \"Ruta sensible\", \"Contiene términos asociados con acceso, verificación o pagos.\", \"sensitive_path\");\n score = Math.max(0, Math.min(100, score));\n return { score, ...riskMeta(score), domain: host.replace(/^www\\./, \"\"), domainStatus: \"neutral\", url: value, reasons, redirectTargets: [] };\n}\n\nfunction analyzeText(text: string) {\n const reasons: Array<{ points: number; title: string; detail: string; code: string }> = [];\n let score = 0;\n const add = (points: number, title: string, detail: string, code: string) => { score += points; reasons.push({ points, title, detail, code }); };\n if (/urgente|últim[oa] aviso|suspendid[ao]|bloquead[ao]|ahora mismo|inmediatamente|24 horas|vence hoy/i.test(text)) add(14, \"Urgencia o presión\", \"El mensaje intenta acelerar una decisión.\", \"urgency\");\n if (/contraseña|password|código de verificación|\\botp\\b|inici[áa] sesi[oó]n|verific[aá] tu cuenta|credencial/i.test(text)) add(18, \"Solicitud relacionada con acceso\", \"Menciona credenciales, códigos o verificación.\", \"credentials\");\n if (/transfer|pago|factura|premio|ganaste|cripto|bitcoin|wallet|tarjeta|reembolso|mercado ?pago/i.test(text)) add(12, \"Dinero o medios de pago\", \"Menciona pagos, transferencias, premios o activos.\", \"money\");\n const links = text.match(/\\bhttps?:\\/\\/[^\\s<>\"']+|\\bwww\\.[^\\s<>\"']+/gi) || [];\n const linkResults = [...new Set(links)].map(analyzeUrl);\n for (const item of linkResults) { score += item.score; reasons.push(...item.reasons); }\n score = Math.max(0, Math.min(100, score));\n if (!text.trim()) return { score: 0, level: \"neutral\", label: \"Sin datos\", verdict: \"No hay contenido para analizar.\", guide: \"Ingresá un mensaje o URL.\", reasons: [], links: [], linkResults: [], text, kind: \"message\" };\n return { score, ...riskMeta(score), reasons, links: [...new Set(links)], linkResults, text, kind: \"message\" };\n}\n\nfunction stable(value: unknown): unknown {\n if (Array.isArray(value)) return value.map(stable);\n if (value && typeof value === \"object\") return Object.keys(value as Record).sort().reduce((out, key) => { out[key] = stable((value as Record)[key]); return out; }, {} as Record);\n return value;\n}\nasync function sha256(text: string) { const digest = await crypto.subtle.digest(\"SHA-256\", new TextEncoder().encode(text)); return [...new Uint8Array(digest)].map(b => b.toString(16).padStart(2, \"0\")).join(\"\"); }\nasync function verifyLedger(ledger: { history?: Array> }) {\n const history = ledger?.history;\n if (!Array.isArray(history)) return { valid: false, entries: 0, brokenAt: 1, reason: \"missing_history\" };\n let previous = \"0\".repeat(64);\n for (let i = 0; i < history.length; i++) {\n const entry = history[i];\n const copy = { ...entry }; delete copy.entryHash;\n const expected = await sha256(JSON.stringify(stable(copy)));\n if (entry.sequence !== i + 1 || entry.previousHash !== previous || entry.entryHash !== expected) return { valid: false, entries: history.length, brokenAt: i + 1, rootHash: previous };\n previous = String(entry.entryHash);\n }\n return { valid: true, entries: history.length, brokenAt: null, rootHash: previous };\n}\n\nconst reasonOutput = z.object({\n points: z.number(), title: z.string(), detail: z.string(), code: z.string(),\n});\nconst urlOutput = z.object({\n score: z.number().min(0).max(100),\n level: z.enum([\"safe\", \"caution\", \"danger\", \"neutral\"]),\n label: z.string(), verdict: z.string().optional(), guide: z.string().optional(),\n domain: z.string(), domainStatus: z.enum([\"trusted\", \"blocked\", \"neutral\"]),\n url: z.string(), reasons: z.array(reasonOutput), redirectTargets: z.array(z.unknown()),\n});\nconst textOutput = z.object({\n score: z.number().min(0).max(100),\n level: z.enum([\"safe\", \"caution\", \"danger\", \"neutral\"]),\n label: z.string(), verdict: z.string(), guide: z.string(),\n reasons: z.array(reasonOutput), links: z.array(z.string()),\n linkResults: z.array(urlOutput), text: z.string(), kind: z.string(),\n});\nconst ledgerOutput = z.object({\n valid: z.boolean(), entries: z.number().int(), brokenAt: z.number().int().nullable(),\n reason: z.string().optional(), rootHash: z.string().optional(),\n});\nconst signalOutput = z.object({ code: z.string(), explanation: z.string(), supported: z.boolean() });\n\nconst handler = createMcpHandler(() => {\n const server = new McpServer({ name: \"rumbo-guardian\", version: \"0.1.3-valtown-staging\" });\n const annotations = { readOnlyHint: true, destructiveHint: false, openWorldHint: false };\n const securitySchemes = [{ type: \"noauth\" as const }];\n server.registerTool(\"analyze_url\", { description: \"Analyzes one user-supplied URL locally for defensive phishing and navigation indicators without opening or fetching the destination.\", inputSchema: z.object({ url: z.string().min(1).max(16384) }), outputSchema: urlOutput, annotations, securitySchemes }, ({ url }) => { const v = analyzeUrl(url); return { content: [{ type: \"text\", text: JSON.stringify(v) }], structuredContent: v }; });\n server.registerTool(\"analyze_text\", { description: \"Analyzes user-supplied text for defensive phishing, fraud, credential-request, and urgency indicators without external actions.\", inputSchema: z.object({ text: z.string().min(1).max(16384) }), outputSchema: textOutput, annotations, securitySchemes }, ({ text }) => { const v = analyzeText(text); return { content: [{ type: \"text\", text: JSON.stringify(v) }], structuredContent: v }; });\n server.registerTool(\"verify_ledger\", { description: \"Verifies a supplied Evidence Ledger hash chain locally without modifying it.\", inputSchema: z.object({ ledger: z.object({ history: z.array(z.record(z.string(), z.unknown())).optional() }).passthrough() }), outputSchema: ledgerOutput, annotations, securitySchemes }, async ({ ledger }) => { const v = await verifyLedger(ledger); return { content: [{ type: \"text\", text: JSON.stringify(v) }], structuredContent: v }; });\n server.registerTool(\"explain_signal\", { description: \"Explains one Guardian signal code and its limitation without making an accusation or taking an external action.\", inputSchema: z.object({ code: z.string().min(1).max(256) }), outputSchema: signalOutput, annotations, securitySchemes }, ({ code }) => { const v = { code, explanation: SIGNALS[code] || \"Unknown or unsupported Guardian signal code.\", supported: Boolean(SIGNALS[code]) }; return { content: [{ type: \"text\", text: JSON.stringify(v) }], structuredContent: v }; });\n return server;\n});\n\nfunction addNoauthSchemes(payload: any) {\n if (Array.isArray(payload?.result?.tools)) {\n payload.result.tools = payload.result.tools.map((tool: any) => ({ ...tool, securitySchemes: [{ type: \"noauth\" }] }));\n }\n return payload;\n}\n\nfunction decorateToolsListBody(text: string, contentType: string) {\n if (contentType.includes(\"text/event-stream\")) {\n return text.split(/\\r?\\n/).map((line) => {\n if (!line.startsWith(\"data: \")) return line;\n try { return `data: ${JSON.stringify(addNoauthSchemes(JSON.parse(line.slice(6))))}`; 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