The backend image now builds the SPA and serves it on the API's own origin (fluksio/spa.py), so an instance is a single container with no proxy, DNS, port 80 or .env: `docker compose up -d` with the new compose.yml runs it on localhost:8080. It starts on fluksio serve (persisted secret key, first admin printed once) and brings its own Redis when REDIS_HOST is unset. Slimmer: python:3.13-slim, no dev group, uv once, fastapi without the cloud CLI. Optional features are per-feature extras (mqtt, influx, email, sentry, ml, server for all) picked with the EXTRAS build argument; numpy moved to `ml`. ffmpeg left the image for imageio-ffmpeg via the Modules screen. The operator stack runs the same image with app. and api. routed to it; the nginx frontend service, the LAN nginx proxy and DOMAIN in the backend are gone, and the MCP issuer is FRONTEND_HOST.
77 lines
3.4 KiB
Markdown
77 lines
3.4 KiB
Markdown
# Agents over MCP
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Fluksio exposes flow tools over MCP. An agent can inspect, edit, publish,
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and run flows with the permissions of the user who authorizes it.
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## Connect an agent
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Set `MCP_ENABLED=true` in the engine's environment and restart it, under
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`environment` in `compose.yml` for the Docker container. It defaults to off.
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Configure your MCP client with an HTTP endpoint:
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- Docker container: `http://localhost:8080/mcp`
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- Deployment: `https://<your-domain>/mcp`
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The endpoint has to be the address in `FRONTEND_HOST`, which is also the
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issuer of the client's tokens.
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The client registers, opens browser authorization, and receives an OAuth
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token after you approve access. The issuer and browser redirects use
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`DOMAIN`, `ENVIRONMENT`, and `FRONTEND_HOST`, so configure those for the
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addresses your client and browser can reach.
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Manage registered clients under **Admin → Agents**. Revoking a client
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invalidates its access. MCP uses a separate signing key at
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`OAUTH_PRIVATE_KEY_FILE`; rotating that key invalidates all MCP tokens.
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An instance connected to a [portal](../interface/portal.md) also answers
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through it, at `https://hub.fluksio.com/i/<instance-id>/mcp` (the portal's
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own `hub.` host for a custom one). The portal forwards the endpoint and its
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OAuth, and the instance checks the agent's token as it does locally. The
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consent page opens in the instance as the portal serves it, so open the
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instance from the portal first if this browser has not recently.
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## Available tools
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| Task | Tools |
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| Inspect flows | `list_flows`, `get_flow`, `get_node_source`, `list_node_types`, `get_graph`, `list_shared_nodes` |
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| Inspect values | `get_flow_state`, `get_message_history` |
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| Inspect the instance | `list_secrets` (names only), `get_modules`, `get_health`, `get_metrics`, `list_failures`, `list_runs` (live cascades) |
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| Edit flows | `save_flow`, `save_node_source`, `validate_flow`, `publish_flow`, `discard_draft`, `delete_flow` |
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| Operate flows | `run_flow`, `trigger_node`, `start_flow`, `stop_flow`, `pause_flow`, `resume_flow`, `cancel_node` |
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| Install node packages | `apply_modules` |
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Tools call the same API as the browser. Drafts, validation, version checks,
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and superuser restrictions apply. Secrets cannot be read back.
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A useful workflow: ask the agent to inspect the flow, save a draft, and
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validate it. Review the draft before asking it to publish. The agent has
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a publish tool, so make your intent explicit.
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## The assistant
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A superuser configures an OpenAI-compatible provider under
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**Settings → Assistant**, with a base URL, API key, and model. This enables
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the dashboard's Assistant entry for signed-in users.
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The assistant uses the same tools with your own permissions. Draft edits
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appear in the editor. Each answer streams in as the model writes it and
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renders as markdown with a tool trace.
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Conversations are stored per user on the instance; the bin button clears
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yours.
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`MCP_ENABLED` is only needed for external clients, so the built-in assistant
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works without it.
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## Control
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A live [Wren node](../reference/node-types.md#wren) with both `prompt` and
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`actions` wired adds a **Control** tab to the chat. It uses the node's local
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model and needs no assistant provider.
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Choose a node, type a command, and inspect the reported actions: target
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message, value, confidence, and whether each action was applied.
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The node's `apply` and `min_confidence` settings decide whether it writes
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to devices. Control conversations stay in the browser and clear on reload.
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