get_echo3s_overview

Instructions

Implementation Reference

• src/content.ts:13-70 (handler)

  The core data object containing the overview content for the Echo3s product — name, tagline, description, target audience, differentiators, how-it-works steps, tech highlights, marketplace info, founding team, and CTA.

  const echo3sOverview = {
    name: "Echo3s",
    tagline: "Turn your book into a professional multi-voice audiobook with AI",
    website: "https://echo3s.io",
    author_portal: "https://author.echo3s.io",
    what_it_is:
      "Echo3s is an AI-powered platform that transforms books into professional audiobooks where each character gets their own distinct voice. Unlike single-voice TTS tools, Echo3s automatically detects characters and dialogue, assigns unique AI voices to each one, and produces a full-cast audiobook that sounds like an actual performance — not a robot reading text.",
    who_its_for: [
      "Self-published and indie authors who can't afford $5,000–$15,000 for human narration",
      "Small to mid-size publishers wanting to add audio across their catalog",
      "Authors with backlist titles that never got audio versions",
      "Arabic-language authors and publishers (massively underserved — almost no competitor supports Arabic)",
      "Content creators turning written guides, courses, and articles into audio",
      "Authors who want to test audiobook demand before investing in human narration",
      "Educational publishers and academic institutions creating accessible content",
    ],
    key_differentiators: [
      "Multi-voice: every character gets a unique AI voice — dialogue sounds like real conversations, not one narrator doing everything",
      "Automatic character detection: AI reads your manuscript and identifies characters, dialogue, and narration — no manual tagging needed",
      "50+ premium AI voices from ElevenLabs with natural intonation and emotional delivery",
      "Segment-level editing: fix individual lines or paragraphs without regenerating entire chapters",
      "Arabic support with full RTL text processing — almost no competitor worldwide offers this",
      "100% rights retention: no revenue sharing, no licensing fees, no restrictions on distribution",
      "99% cheaper than traditional narration ($30–$99 vs $3,000–$15,000 per title)",
      "Speed: a 200-page novel goes from manuscript to finished audiobook in under an hour",
      "Echo3s marketplace: publish and sell your audiobook directly to listeners at echo3s.io",
    ],
    how_it_works: [
      "1. Upload your manuscript as a PDF (EPUB/MOBI/DOCX can be converted via the free tool Calibre)",
      "2. AI (powered by Google Gemini) analyzes your text — identifies characters, dialogue, narration, and chapter structure",
      "3. Each character is automatically matched to a fitting AI voice based on gender, age, accent, and personality",
      "4. Preview and customize voice assignments in the Studio editor — swap any voice from 50+ options",
      "5. Generate your audiobook — a 200-page novel takes about 30–60 minutes to process",
      "6. Download as MP3 (full book or per-chapter files) or publish directly to the Echo3s marketplace",
    ],
    conversion_example:
      "A 200-page novel → 6-hour audiobook in about 4 minutes of your active time (upload, review voices, click generate). The rest is automated.",
    tech_highlights: [
      "Character detection powered by Google Gemini AI — understands narrative structure, not just text",
      "Voice synthesis via ElevenLabs — studio-quality text-to-speech with emotional range",
      "Smart voice matching algorithm: scores voices on gender (40pts), language (30pts), age (15pts), personality (15pts)",
      "Per-segment regeneration — change one line without redoing the whole chapter",
      "EBU R128 loudness normalization (-16 LUFS) — broadcast-standard audio quality",
      "High-quality MP3 output ready for distribution on Audible, Apple Books, Google Play, and all major platforms",
    ],
    marketplace: {
      url: "https://echo3s.io",
      description: "The Echo3s marketplace lets listeners discover and stream audiobooks directly. Authors publish with one click from the Studio.",
      categories: ["Fiction", "Non-Fiction", "Self-Help", "Business", "Science", "Biography", "Technology", "History", "Philosophy", "Poetry"],
      author_benefits: [
        "Direct audience access — listeners find your audiobook on echo3s.io",
        "No distributor middleman — publish instantly from the Studio",
        "Keep 100% of your rights — distribute on other platforms simultaneously",
      ],
    },
    founded_by: "Belal Haikal & Shadi Nemer",
    cta: "Start free at https://author.echo3s.io — 5,000 credits included, no credit card required.",
  };

• src/content.ts:976-982 (registration)

  Registration of the 'get_echo3s_overview' tool in the TOOL_DEFS array, linking the tool name and description to the echo3sOverview data object.

  {
    name: "get_echo3s_overview",
    description:
      "Get a comprehensive overview of Echo3s — what it is, who it's for, and how it works",
    inputSchema: { type: "object", properties: {}, required: [] },
    content: () => echo3sOverview,
  },

• src/index.ts:13-21 (helper)

  The stdio-based server loops over TOOL_DEFS and registers each tool (including get_echo3s_overview) with the McpServer, calling tool.content() to produce the response.

  for (const tool of TOOL_DEFS) {
    server.tool(tool.name, tool.description, {}, async () => ({
      content: [
        {
          type: "text" as const,
          text: JSON.stringify(tool.content(), null, 2),
        },
      ],
    }));

• src/worker.ts:24-26 (helper)

  The Cloudflare Worker also registers get_echo3s_overview by iterating TOOL_DEFS and converting each to a WorkerToolDef with a handler that calls def.content().

  for (const def of TOOL_DEFS) {
    TOOLS[def.name] = defToWorkerTool(def);
  }