diff --git a/.env.example b/.env.example
index e251708..e8c2e88 100644
--- a/.env.example
+++ b/.env.example
@@ -8,11 +8,16 @@ MATRIX_PASSWORD=your_password_here
 MATRIX_PLATFORM_BACKEND=real
 MATRIX_AGENT_REGISTRY_PATH=config/matrix-agents.yaml
 
-# Shared workspace contract
-SURFACES_WORKSPACE_DIR=/workspace
+# Shared /agents contract for Phase 05 deployment
+SURFACES_WORKSPACE_DIR=/agents
+SURFACES_SHARED_VOLUME=surfaces-agents
 
-# Compose-local platform-agent route
-AGENT_BASE_URL=http://platform-agent:8000
+# Production handoff: point the bot at the externally managed agent endpoint.
+AGENT_BASE_URL=https://lambda.coredump.ru/agent_0/
+
+# Internal full-stack compose defaults
+AGENT_ID=matrix-dev
+COMPOSIO_API_KEY=
 
 # platform-agent provider
 PROVIDER_MODEL=openai/gpt-4o-mini
diff --git a/docker-compose.fullstack.yml b/docker-compose.fullstack.yml
new file mode 100644
index 0000000..1128d30
--- /dev/null
+++ b/docker-compose.fullstack.yml
@@ -0,0 +1,49 @@
+services:
+  matrix-bot:
+    extends:
+      file: docker-compose.prod.yml
+      service: matrix-bot
+    environment:
+      AGENT_BASE_URL: http://platform-agent:8000
+    depends_on:
+      platform-agent:
+        condition: service_healthy
+
+  platform-agent:
+    build:
+      context: ./external/platform-agent
+      target: development
+      additional_contexts:
+        agent_api: ./external/platform-agent_api
+    environment:
+      PYTHONUNBUFFERED: "1"
+      AGENT_ID: ${AGENT_ID:-matrix-dev}
+      PROVIDER_MODEL: ${PROVIDER_MODEL:-openai/gpt-4o-mini}
+      PROVIDER_URL: ${PROVIDER_URL:-}
+      PROVIDER_API_KEY: ${PROVIDER_API_KEY:-}
+      COMPOSIO_API_KEY: ${COMPOSIO_API_KEY:-}
+    volumes:
+      - ./external/platform-agent/src:/app/src
+      - ./external/platform-agent_api:/agent_api
+      - agents:/workspace
+    command: >
+      sh -lc "
+        mkdir -p /workspace &&
+        chown -R agent:agent /workspace &&
+        exec /app/.venv/bin/uvicorn src.main:app --host 0.0.0.0 --port 8000
+      "
+    ports:
+      - "8000:8000"
+    healthcheck:
+      test:
+        - CMD-SHELL
+        - python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/openapi.json', timeout=2).read()"
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+    restart: unless-stopped
+
+volumes:
+  agents:
+    name: ${SURFACES_SHARED_VOLUME:-surfaces-agents}
diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
new file mode 100644
index 0000000..2316d2f
--- /dev/null
+++ b/docker-compose.prod.yml
@@ -0,0 +1,21 @@
+services:
+  matrix-bot:
+    build: .
+    environment:
+      MATRIX_HOMESERVER: ${MATRIX_HOMESERVER:-}
+      MATRIX_USER_ID: ${MATRIX_USER_ID:-}
+      MATRIX_PASSWORD: ${MATRIX_PASSWORD:-}
+      MATRIX_ACCESS_TOKEN: ${MATRIX_ACCESS_TOKEN:-}
+      MATRIX_PLATFORM_BACKEND: ${MATRIX_PLATFORM_BACKEND:-real}
+      MATRIX_AGENT_REGISTRY_PATH: ${MATRIX_AGENT_REGISTRY_PATH:-config/matrix-agents.yaml}
+      AGENT_BASE_URL: ${AGENT_BASE_URL:-}
+      SURFACES_WORKSPACE_DIR: ${SURFACES_WORKSPACE_DIR:-/agents}
+      PYTHONUNBUFFERED: "1"
+    volumes:
+      - agents:/agents
+      - ./config:/app/config:ro
+    restart: unless-stopped
+
+volumes:
+  agents:
+    name: ${SURFACES_SHARED_VOLUME:-surfaces-agents}