diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..51f9c89
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,118 @@
+# OpusAgent
+
+Self-hosted REST API proxy to Claude models via Claude Code SDK, leveraging a Claude Pro/Max subscription.
+
+## Architecture
+
+Two Docker containers behind Traefik reverse proxy:
+
+```
+Client → Traefik (HTTPS) → FastAPI (Python, :8000) ↔ Node.js Worker (:3001, internal)
+                                    ↓                         ↓
+                              SQLite (WAL)           Claude Code SDK
+```
+
+- **fastapi-service**: API REST, auth, rate limiting, async queue processing
+- **claude-worker**: Express server wrapping `@anthropic-ai/claude-code` SDK
+
+## Key Paths
+
+| Area | Path |
+|------|------|
+| FastAPI entrypoint | `src/backend/main.py` |
+| Config (Pydantic Settings) | `src/backend/config.py` |
+| Database layer (aiosqlite) | `src/backend/db/database.py` |
+| API models + envelope | `src/backend/models/api.py` |
+| Routes | `src/backend/api/routes/{health,topics,requests,sessions}.py` |
+| Auth + rate limiter | `src/backend/api/dependencies.py` |
+| Worker HTTP client | `src/backend/services/worker_client.py` |
+| Queue processor | `src/backend/services/queue.py` |
+| Node.js worker | `worker/index.js` |
+| Tests | `tests/` |
+| Design spec (Italian) | `docs/superpowers/specs/` |
+| Implementation plan | `docs/superpowers/plans/` |
+
+## Tech Stack
+
+- **Python 3.11+**: FastAPI, uvicorn, aiosqlite, httpx, slowapi, pydantic-settings
+- **Node.js 20**: Express, @anthropic-ai/claude-code SDK (v1.0.128+, async iterable API)
+- **Package manager**: uv (Python), npm (Node.js)
+- **Database**: SQLite with WAL mode, foreign keys enabled
+- **Infra**: Docker Compose, Traefik v3 (TLS via Let's Encrypt)
+
+## Database Schema
+
+Three tables in SQLite:
+
+- **topics**: id (UUID), name (unique), system_prompt, summary, model (nullable), timestamps
+- **requests**: id (UUID), session_id, topic_id (FK), prompt, result, error, model, summarize (bool), status (pending/processing/completed/failed), timestamps
+- **closed_sessions**: session_id (PK), closed_at
+
+## API Endpoints
+
+All require `X-Api-Key` header. All responses use envelope: `{success, data, error}`.
+
+- `GET /api/health` — health check (DB + worker)
+- `POST|GET /api/topics`, `GET|PUT|DELETE /api/topics/{id}` — topic CRUD
+- `POST /api/topics/{id}/summarize` — regenerate complete topic summary
+- `POST /api/requests` (202) — submit prompt (async queue), `GET|DELETE /api/requests[/{id}]`
+- `GET /api/sessions`, `DELETE /api/sessions/{id}` — session management
+
+## Processing Flow
+
+1. `POST /api/requests` → 202 Accepted (queued)
+2. Background loop picks oldest pending, calls worker `POST /process`
+3. Worker runs Claude Code SDK (`query()`) with optional session resume
+4. Result stored in DB; optional incremental summary appended to topic
+5. Client polls `GET /api/requests/{id}` for result
+
+Model resolution: request-level > topic-level > `CLAUDE_MODEL` env var.
+
+## Commands
+
+```bash
+# Development
+uv sync --all-groups
+uv run dev                          # uvicorn with --reload
+
+# Production
+docker compose up -d                # both services
+docker compose exec claude-worker npx claude login  # first-time auth (must run on active container, NOT run --rm)
+
+# Tests
+uv run pytest -v
+
+# Logs
+docker compose logs -f fastapi-service
+docker compose logs -f claude-worker
+```
+
+## Environment Variables (.env)
+
+| Variable | Default | Purpose |
+|----------|---------|---------|
+| `API_KEY` | (required) | Auth key for all endpoints |
+| `API_HOST` | 0.0.0.0 | Server bind address |
+| `API_PORT` | 8000 | Server port |
+| `WORKER_URL` | http://claude-worker:3001 | Internal worker address |
+| `DB_PATH` | /data/opus-agent.db | SQLite database path |
+| `CLAUDE_MODEL` | claude-sonnet-4-6 | Default Claude model |
+| `RATE_LIMIT_PER_MINUTE` | 10 | Rate limit per API key |
+| `RATE_LIMIT_PER_HOUR` | 100 | Rate limit per API key |
+
+## Design Decisions
+
+- **Sequential processing**: one request at a time (FIFO), no concurrency — simplifies Claude Code SDK session handling
+- **Async Python**: FastAPI + aiosqlite for non-blocking I/O while queue runs in background
+- **SQLite + WAL**: sufficient for single-writer pattern, no external DB needed
+- **Envelope pattern**: consistent `{success, data, error}` on all responses
+- **Session = conversation**: session_id maps to Claude Code SDK `resume` option
+- **Worker isolation**: not exposed to host, only reachable from fastapi-service via Docker internal network
+- **Claude auth volume**: credentials stored at `/root/.claude` (not `/home/node/.claude`) because the worker process runs as root inside the container
+- **SDK async iteration**: `query()` returns an async iterable (not a promise); iterate with `for await...of` and extract the message with `type === "result"`
+
+## Deployment
+
+Domain: `opus-agent.tielogic.xyz` → Traefik → fastapi-service:8000
+
+Traefik config: `/opt/docker/traefik/dynamic.yml` (file provider, auto-reload).
diff --git a/Dockerfile b/Dockerfile
index 827aff2..a48a493 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,4 +11,4 @@ COPY src/ src/
 
 EXPOSE 8000
 
-CMD ["uv", "run", "start"]
+CMD ["uv", "run", "uvicorn", "src.backend.main:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/README.md b/README.md
index 8e1a7b9..7b4080a 100644
--- a/README.md
+++ b/README.md
@@ -24,16 +24,18 @@ Due container Docker:
    # Edita .env: imposta API_KEY e le altre variabili
    ```
 
-2. Autentica Claude Code nel worker:
-   ```bash
-   docker compose run --rm claude-worker npx claude login
-   ```
-
-3. Avvia il sistema:
+2. Avvia il sistema:
    ```bash
    docker compose up -d
    ```
 
+3. Autentica Claude Code nel worker (nel container attivo, non con `run --rm`):
+   ```bash
+   docker compose exec claude-worker npx claude login
+   ```
+   Le credenziali vengono salvate nel volume Docker `claude-auth` (mount: `/root/.claude`)
+   e persistono tra riavvii e rebuild. Si perdono solo con `docker compose down -v`.
+
 4. Verifica:
    ```bash
    curl -H "X-Api-Key: TUA_KEY" http://localhost:8000/api/health
@@ -56,7 +58,9 @@ uv run pytest -v
 
 ## API
 
-Documentazione completa: `http://localhost:8000/doc`
+Documentazione interattiva:
+- Swagger UI: `https://opus-agent.tielogic.xyz/docs`
+- ReDoc: `https://opus-agent.tielogic.xyz/redoc`
 
 ### Esempio d'uso
 
diff --git a/docker-compose.yml b/docker-compose.yml
index e3f952e..addd2e8 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -33,7 +33,7 @@ services:
     env_file: .env
     volumes:
       - opus-data:/data
-      - claude-auth:/home/node/.claude
+      - claude-auth:/root/.claude
     restart: unless-stopped
     healthcheck:
       test: ["CMD", "wget", "--spider", "-q", "http://localhost:3001/health"]
diff --git a/src/backend/main.py b/src/backend/main.py
index c96c624..f1e1923 100644
--- a/src/backend/main.py
+++ b/src/backend/main.py
@@ -35,7 +35,7 @@ async def lifespan(app: FastAPI):
 app = FastAPI(
     title="OpusAgent",
     version="0.1.0",
-    docs_url="/doc",
+    docs_url="/docs",
     redoc_url="/redoc",
     openapi_url="/openapi.json",
     lifespan=lifespan,
diff --git a/worker/index.js b/worker/index.js
index a585b60..e201dbe 100644
--- a/worker/index.js
+++ b/worker/index.js
@@ -31,22 +31,21 @@ app.post("/process", async (req, res) => {
       options.resume = session_id;
     }
 
-    const messages = await query({
-      prompt,
-      options,
-    });
+    const conv = query({ prompt, options });
+    const messages = [];
+    for await (const msg of conv) {
+      messages.push(msg);
+    }
 
-    const resultText = messages
-      .filter((m) => m.type === "text")
-      .map((m) => m.text)
-      .join("\n");
-
-    const conversationId = messages.length > 0 ? messages[0].conversationId : null;
+    const resultMsg = messages.find((m) => m.type === "result");
+    if (resultMsg && resultMsg.is_error) {
+      return res.json({ success: false, error: resultMsg.result });
+    }
 
     res.json({
       success: true,
-      result: resultText,
-      session_id: conversationId || session_id,
+      result: resultMsg?.result || "",
+      session_id: resultMsg?.session_id || session_id,
     });
   } catch (error) {
     console.error("Process error:", error.message);
@@ -76,7 +75,7 @@ app.post("/summarize", async (req, res) => {
       : `Summarize this exchange in 1-2 sentences:\n\n${exchangeText}`;
 
   try {
-    const messages = await query({
+    const conv = query({
       prompt: summaryPrompt,
       options: {
         model: DEFAULT_MODEL,
@@ -85,15 +84,15 @@ app.post("/summarize", async (req, res) => {
         allowedTools: [],
       },
     });
+    const msgs = [];
+    for await (const msg of conv) {
+      msgs.push(msg);
+    }
 
-    const summaryText = messages
-      .filter((m) => m.type === "text")
-      .map((m) => m.text)
-      .join("\n");
-
+    const resultMsg = msgs.find((m) => m.type === "result");
     res.json({
       success: true,
-      summary: summaryText.trim(),
+      summary: (resultMsg?.result || "").trim(),
     });
   } catch (error) {
     console.error("Summarize error:", error.message);