AI Course Content Generator (CCG)

Version: 1.0.0 Location: /Users/shunsukehayashi/dev/ai-course-content-generator-v2

Triggers

Trigger Examples

Course creation "create course", "generate course", "/ccg"

Development "ccg dev", "start course generator"

Build "ccg build", "build course app"

Quick Commands

Development

cd /Users/shunsukehayashi/dev/ai-course-content-generator-v2 && npm run dev

Production build

cd /Users/shunsukehayashi/dev/ai-course-content-generator-v2 && npm run build

Electron dev

cd /Users/shunsukehayashi/dev/ai-course-content-generator-v2 && npm run electron:dev

Electron build

cd /Users/shunsukehayashi/dev/ai-course-content-generator-v2 && npm run electron:build

Key Capabilities

• Course Structure Generation - JSON curriculum generation

• Lesson Script Generation - Customizable narration scripts

• Text-to-Speech - Gemini TTS audio generation

• Slide Generation - Graphic recording style

• Video Rendering - WebCodecs API MP4 creation

• Bulk Export - ZIP download of all assets

Architecture

Vision Panel → Structure → Content Pipeline → Export ↓ ↓ ↓ ↓ Image/PDF/URL JSON Structure Slides/Audio MP3/MP4/ZIP

Key Files

File Purpose

services/geminiService.ts

Gemini API calls + retry logic

templates/prompts.ts

Zod schemas + prompt builders

utils/audioUtils.ts

PCM→MP3 encoding (lamejs)

utils/videoUtils.ts

MP4 muxing (WebCodecs)

types.ts

Course structure interfaces

constants.ts

Defaults + TTS voice options

Gemini Models

• Primary: gemini-3-flash-preview (with thinking)

• Backup: gemini-2.5-flash (quota fallback)

• TTS: gemini-2.5-flash-preview-tts

• Image: gemini-3-pro-image-preview

Environment

• GEMINI_API_KEY required in .env