Ink Quest MCP Server

InkQuest

Interactive language-learning fiction built with Next.js, Supabase, and OpenNext Cloudflare.

Getting Started

Install dependencies and run the development server:

pnpm install
pnpm dev

Open http://localhost:3000.

Generated Stories Foundation

The first cloud-generation foundation includes:

• Supabase credit ledger, reservations, story graph, jobs, outbox, billing tables, and RLS in supabase/migrations/202608220001_generated_story_billing.sql.
• Server-created Lemon Squeezy checkouts and idempotent webhook processing.
• Authenticated quote and generated-story job creation APIs.
• Cloud adapter contracts and a reusable scene enrichment core in tools/story-pipeline/src/core.

Required server environment variables:

NEXT_PUBLIC_SUPABASE_URL
NEXT_PUBLIC_SUPABASE_ANON_KEY
NEXT_PUBLIC_GOOGLE_CLIENT_ID
SUPABASE_SERVICE_ROLE_KEY
NEXT_PUBLIC_SITE_URL

LEMONSQUEEZY_API_KEY
LEMONSQUEEZY_STORE_ID
LEMONSQUEEZY_WEBHOOK_SECRET
LEMONSQUEEZY_SUBSCRIPTION_VARIANT_ID
LEMONSQUEEZY_SUBSCRIPTION_CREDIT_GRANT
LEMONSQUEEZY_CREDIT_PACK_VARIANT_ID
LEMONSQUEEZY_CREDIT_PACK_GRANT

GENERATION_PRICING_VERSION
GENERATION_OPENING_TEXT_CREDITS
GENERATION_OPENING_TTS_CREDITS
GENERATION_SCENE_TEXT_CREDITS
GENERATION_SCENE_TTS_CREDITS

NEXT_PUBLIC_GOOGLE_CLIENT_ID is the Web OAuth client ID from Google Cloud. Add each deployed site origin (including local development) to its authorized JavaScript origins, and enable Google provider in Supabase.

Credit-pack variables are optional until that product is enabled. Generation pricing falls back to 20 credits for opening text, 10 for opening TTS, 12 for scene text, and 6 for scene TTS when the corresponding environment variables are missing or invalid. TTS pricing is required only when every_scene is offered. Never expose the service-role key, Lemon API key, or webhook secret through a NEXT_PUBLIC_ variable.

Apply the migrations in filename order. Existing environments that already ran the first two migrations should next apply supabase/migrations/202608230001_generated_story_tts.sql; it creates the private audio bucket and adds independent TTS commit/retry/refund transactions.

The generation execution path is:

Next.js → inkquest-generation Queue → generation-dispatcher → Cloud Run story-pipeline Worker

Additional main-app variables:

GENERATION_DISPATCH_SECRET
GENERATED_AUDIO_BUCKET

Cloud Run Worker variables:

SUPABASE_URL
SUPABASE_SERVICE_ROLE_KEY
GENERATION_WORKER_TOKEN
LLM_CHAT_COMPLETIONS_URL
LLM_API_KEY
LLM_MODEL
LLM_PROMPT_VERSION
TENCENT_SECRET_ID
TENCENT_SECRET_KEY
TENCENT_REGION
TENCENT_TTS_VOICE
AZURE_SPEECH_KEY
AZURE_SPEECH_REGION
AZURE_TTS_VOICE_ZH
AZURE_TTS_VOICE_EN
STORY_TTS_ZH_PROVIDER
STORY_TTS_EN_PROVIDER
GENERATED_AUDIO_BUCKET

GENERATED_AUDIO_BUCKET defaults to generated-audio. Configure the Azure Speech key and region on the Cloud Run Worker; the verified evaluation resource uses eastasia. Azure is preferred for both Chinese and English when configured, with zh-CN-Xiaoxiao:DragonHDFlashLatestNeural and en-US-JennyNeural as defaults. Set STORY_TTS_ZH_PROVIDER or STORY_TTS_EN_PROVIDER to azure or tencent to override selection. The Worker image also installs FFmpeg to normalize multi-part Tencent audio into one seekable MP3 before upload.

Create inkquest-generation and inkquest-generation-dlq in Cloudflare, deploy the main app, then deploy tools/generation-dispatcher/wrangler.jsonc. Configure GENERATION_WORKER_URL on the dispatcher and store GENERATION_WORKER_TOKEN with wrangler secret put.

For local development, start the Worker in a separate terminal before generating a story:

PORT=8080 pnpm --filter @inkquest/story-pipeline worker:start

The Next.js development server dispatches new jobs to http://127.0.0.1:8080 by default. Set GENERATION_WORKER_URL to override it, and make sure Next.js and the Worker use the same GENERATION_WORKER_TOKEN.

Call POST /api/internal/generation/outbox every minute with Authorization: Bearer <GENERATION_DISPATCH_SECRET> to recover failed queue publications and expired Worker leases.

MCP

A read-only Model Context Protocol server for the public story catalog is served at /api/mcp (Streamable HTTP). It lists free stories, returns the opening scene, and recommends matches, each with an https://inkquest.dev/stories/{id} link. It does not expose generated stories or premium scenes. Setup, local checks, and registry publishing are in docs/mcp.md.

Validation

pnpm exec tsc --noEmit
pnpm --filter @inkquest/story-pipeline typecheck
pnpm lint
pnpm build

Deployment uses OpenNext Cloudflare; see wrangler.jsonc and the preview / deploy scripts in package.json.