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io.github.henriquepe/lousa

السجل الرسمي الذكاء الاصطناعي والوكلاء

A whiteboard where AI agents draw their explanations as hand-drawn animated diagrams

الشيفرة المصدرية التوثيق

التثبيت

أضف هذا إلى إعدادات MCP في عميلك (Claude Desktop: claude_desktop_config.json، وCursor: ‏.cursor/mcp.json، ويستخدم VS Code وغيره الصيغة نفسها «mcpServers»).

NPM package lousa
Claude Code 
claude mcp add lousa -- npx -y lousa@0.1.1 mcp
إعداد JSON (Claude Desktop وCursor وVS Code) 
{
    "mcpServers": {
        "lousa": {
            "command": "npx",
            "args": [
                "-y",
                "lousa@0.1.1",
                "mcp"
            ]
        }
    }
}

التوثيق

مأخوذ من ملف README للمشروع على GitHub ويُحدَّث أسبوعيًا. تفتح الروابط على GitHub.

المحتويات
  1. Lousa
  2. Why it's different
  3. Quick start
  4. MCP tools
  5. Self-hosting a shared server
  6. Development
  7. License

Lousa

A whiteboard where your AI agent draws its explanations.

Ask your agent "explain this visually" and it sketches an animated, hand-drawn diagram on a live board — instead of another wall of text. Lousa is an MCP server + web viewer: the agent authors a declarative scene (boxes, arrows, cylinders, notes), and the board renders it stroke by stroke, as if someone were drawing it in front of you.

Lousa is Portuguese for the classic school blackboard.

Why it's different

  • The agent is the artist. No prompt box, no OCR — your coding agent already has the context and draws through typed MCP tools.
  • Live, incremental drawing. Follow-ups edit the scene; the open tab animates only what changed, like watching the diagram evolve.
  • Point at things. Click elements in the viewer to select them, then tell your agent "improve what I selected" — it reads your selection through get_selection and targets exactly that.
  • Boards expire by default (12h, sliding) — a whiteboard, not a document graveyard. ttlHours: 0 keeps a board forever.

Quick start

Requires Node.js 18.17+.

# Claude Code
claude mcp add lousa -- npx -y lousa mcp

# or run the server directly
npx lousa            # viewer at http://127.0.0.1:4666

Any MCP host works — for stdio configuration use command npx, args ["-y", "lousa", "mcp"]. The stdio endpoint auto-starts the local server, so the viewer is always available. Then ask your agent to "draw how our auth flow works" and open the URL it returns.

MCP tools

ToolWhat it does
create_boardCreates a board from a scene, returns {id, url}
update_boardReplaces the scene; unchanged elements stay byte-identical so only changes animate
get_board / list_boardsRead boards
get_selectionWhat the user selected in the viewer (ids + full elements)
delete_boardDeletes a board

The scene is a JSON array of elements — box, ellipse, diamond, cylinder, arrow (connects ids), line, text, note — rendered with rough.js. The full schema ships inside the tool definitions; agents need no extra setup.

Self-hosting a shared server

Run lousa on any Node host and point machines at it:

LOUSA_TOKEN=<secret> HOST=0.0.0.0 npx lousa        # server
LOUSA_URL=https://your-host LOUSA_TOKEN=<secret> npx lousa mcp   # each client

LOUSA_TOKEN gates board listing/creation/deletion and /mcp; per-board URLs act as capability links. AWS Lambda + S3 deployment is supported out of the box (lambda.js handler + LOUSA_BUCKET for storage); any HTTPS front (API Gateway, etc.) works.

Env varDefaultPurpose
PORT / HOST4666 / 127.0.0.1server bind
LOUSA_DATA_DIR~/.lousa/boardsfilesystem board storage
LOUSA_BUCKET—use S3 storage instead of filesystem
LOUSA_TOKEN—require bearer token (header or ?t=) on global routes and MCP
LOUSA_URL—lousa mcp proxies to this remote server
LOUSA_DEFAULT_TTL_HOURS12default board expiry

Development

npm install
npm test          # node --test
node cli.js       # local server

License

AGPL-3.0 © Henrique Pires

الأسئلة الشائعة

ما هو io.github.henriquepe/lousa؟

A whiteboard where AI agents draw their explanations as hand-drawn animated diagrams

كيف أثبّت io.github.henriquepe/lousa؟

يعمل على جهازك. في Claude Code: claude mcp add lousa -- npx -y lousa@0.1.1 mcp. وفي العملاء الآخرين، الصق إعداد JSON من هذه الصفحة في إعدادات MCP الخاصة بهم.

هل يحتاج io.github.henriquepe/lousa إلى مفتاح API؟

لا يذكر إدراجه في السجل أي مفتاح أو سر إلزامي. قد تتطلب بعض الميزات حسابًا لدى الخدمة التي يتصل بها.

هل io.github.henriquepe/lousa مفتوح المصدر؟

نعم. شيفرته متاحة على GitHub بترخيص AGPL-3.0.

من يصون io.github.henriquepe/lousa؟

ينشره henriquepe. يدرجه AI.tn لكنه لا يصونه ولا يوصي به.

من سجل MCP الرسمي. الإدراج ليس توصية: راجع شيفرة الخادم وصلاحياته قبل منحه الوصول إلى بياناتك.