decidealot

# Decidealot

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Your hardware. Local decision models. Run Laya, Von, or a CLM projection head through TypeSafe-compatible HTTP or MCP.

At startup Decidealot downloads and verifies every enabled local bundle. It then loads only the provider selected by a request, unloads it after the configured idle period, and returns typed `choice`, `score`, and `noul` answers with model probabilities. CLM adds a small local projection head over one configured Qwen3-8B embeddings endpoint. It exposes the TypeSafe HTTP API and MCP Streamable HTTP from the same local container.

## Contents

- [Quick start](#quick-start)
- [Use the API](#use-the-api)
- [Use MCP](#use-mcp)
- [Expose MCP through a proxy](#expose-mcp-through-a-proxy)
- [Pick a model](#pick-a-model)
- [Configuration](#configuration)
- [CUDA](#cuda)
- [Model storage and unloading](#model-storage-and-unloading)
- [Agent integrations](#agent-integrations)
- [Docs](#docs)

## Quick start

You need Docker. This starts the CPU image on loopback, stores downloaded model files in one narrow host directory, and gives the container no capabilities or writable root filesystem.

```bash
model_directory="$HOME/.local/share/decidealot/models"
runtime_uid=$(id -u)
runtime_gid=$(id -g)
mkdir --parents "$model_directory"

docker run --detach --name decidealot --init --restart unless-stopped \
  --user "$runtime_uid:$runtime_gid" \
  --read-only --cap-drop ALL --security-opt no-new-privileges:true \
  --pids-limit 512 --memory 8g --cpus 4 \
  --tmpfs /tmp:rw,noexec,nosuid,size=128m \
  --tmpfs /var/run:rw,noexec,nosuid,size=8m \
  --log-driver json-file --log-opt max-size=10m --log-opt max-file=5 \
  --mount type=bind,source="$model_directory",target=/models \
  --publish 127.0.0.1:8080:8080 \
  psyb0t/decidealot:latest
```

Check the service, then ask Laya to make one typed decision:

```bash
curl --fail http://127.0.0.1:8080/health

curl --fail http://127.0.0.1:8080/v1/systemone \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "laya",
    "state": "A proposed action would permanently delete protected data.",
    "questions": {
      "handling": {
        "type": "choice",
        "instructions": "Choose the required handling for this action.",
        "criteria": {
          "allow": "The action is reversible and does not affect protected data.",
          "require_review": "The action is irreversible or affects protected data."
        }
      }
    }
  }'
```

The first service startup downloads the enabled pinned model bundles and can take several minutes. The default configuration enables Laya and Von. Wait for `/health` before sending a decision. Later service starts reuse the same host directory. The response includes `answers.handling.choice` and a probability per choice key. Your caller chooses what to do with that decision, for example only allowing `allow` when its probability meets your own threshold.

## Use the API

Send the state to judge and a bounded question. Decidealot returns typed results with probabilities.

| Endpoint | What it does |
| --- | --- |
| `POST /v1/systemone` | Runs the selected model against `state` and returns typed answers. |
| `GET /v1/models` | Lists every supported alias and the model behind it. |
| `POST /v1/models/unload` | Stops all providers. |
| `/mcp` | Version 2 MCP Streamable HTTP, with `system_one`, `list_models`, and `unload_models` tools. |
| `GET /health` | Reports whether downloaded model bundles are ready. |

`choice` questions need named `criteria`. `score` questions need an ordered criteria array whose position is the score. `noul` questions return a probability between zero and one. [The API guide](docs/api.md) has the request rules, response shape, validation failures, aliases, authentication, and lifecycle behavior.

## Use MCP

The same container serves MCP Streamable HTTP at `http://127.0.0.1:8080/mcp`. The `system_one` tool takes the same `model`, `state`, and `questions` fields as `POST /v1/systemone`. `list_models` returns the live catalog. `unload_models` releases local model memory. Direct loopback clients and containers using the `decidealot` Docker service name work by default.

Point an MCP client at that exact URL. Its configuration format varies, but the connection values are always equivalent to this:

```json
{
  "mcpServers": {
    "decidealot": {
      "url": "http://127.0.0.1:8080/mcp",
      "headers": {
        "Authorization": "Bearer your-token-here"
      }
    }
  }
}
```

Omit the `Authorization` header only when `DECIDEALOT_API_KEY` is empty. The MCP tools return structured output matching the HTTP result bodies, so an agent can inspect probabilities before it chooses the next action. A client that only supports local stdio can use the optional OpenClaw bridge described in [Agent integrations](#agent-integrations). [The API guide](docs/api.md#mcp-streamable-http) has tool inputs, output shapes, session behavior, and failure behavior.

## Expose MCP through a proxy

The MCP server keeps DNS-rebinding protection enabled. A proxy, tunnel, or public DNS name must be allowed explicitly. Add the exact public `Host` value to `DECIDEALOT_MCP_ALLOWED_HOSTS`. Browser-based MCP clients must also add their exact origin, including the scheme, to `DECIDEALOT_MCP_ALLOWED_ORIGINS`.

For a proxy that publishes `https://mcp.example.net/mcp`, put these values in the Compose `.env` file before `docker compose up -d`, or pass the same variables with `docker run --env`:

```dotenv
DECIDEALOT_API_KEY=replace-with-a-real-secret
DECIDEALOT_MCP_ALLOWED_HOSTS=127.0.0.1,127.0.0.1:*,localhost,localhost:*,[::1],[::1]:*,decidealot,decidealot:*,mcp.example.net
DECIDEALOT_MCP_ALLOWED_ORIGINS=http://127.0.0.1:*,http://localhost:*,http://[::1]:*,https://mcp.example.net
```

Keep `--publish 127.0.0.1:8080:8080` when a local reverse proxy terminates TLS. The proxy forwards the request unchanged with `Host: mcp.example.net`. After bearer authentication, Decidealot returns `421` for an untrusted host and `403` for an untrusted browser origin. Invalid or missing bearer credentials return `401` first. Do not disable this protection or allow a broad wildcard for an internet-facing endpoint.

## Pick a model

Every request must name a selector. `GET /v1/models` returns the same catalog at runtime.

| Selector | What it runs | Pick it when |
| --- | --- | --- |
| `laya`, `laya-auto`, `laya-latest` | Laya with automatic checkpoint routing. | State may arrive in more than one language or script. |
| `laya-english` | Laya's English checkpoint. | State is English and uses the Latin script. |
| `laya-multilingual` | Laya's multilingual checkpoint. | State is in another language or script, including short Latin-script text that is not clearly English. |
| `laya-typed-decisions` | Laya's checkpoint tuned for structured workflow decisions. | Your workload looks like repeated policy, routing, triage, or approval decisions. Validate it on your own cases first. |
| `von`, `von-latest`, `von-1.1`, `von-1.1.0` | The local English-only Von 1.1 model. | You want Von's independent result for a short, well-posed decision, or want to compare it with Laya before standardizing a workflow. |
| `clm`, `clm-latest`, `clm-0.1`, `clm-0.1-8b` | The local CLM v0.1 projection head over one configured Qwen3-8B embeddings endpoint. | You have a trusted embeddings service that emits CLM-compatible 4096-wide last-token Qwen3-8B vectors. |

### What differs

Laya is one model family with three checkpoints. Its automatic selectors choose English or multilingual checkpoints from the input script and a language heuristic. Use `laya-multilingual` for known non-English short Latin-script messages. `laya-typed-decisions` targets repeated structured decision work.

Von is a separate English-only decision model for short questions with clear criteria. CLM is a local 75 MB projection head, not a text encoder. It calls one configured OpenAI-compatible `/v1/embeddings` URL and requires its configured model to return Qwen3-8B last-token vectors with exactly 4096 float values. All providers take the same TypeSafe `state` and `questions` shape and return typed `choice`, `score`, and `noul` answers with probabilities. Your application applies the threshold and action that follow.

Decidealot keeps one provider resident. Moving between Laya selectors stays in the Laya provider. Moving to another provider waits for active work, releases the old model, Torch allocations, and CUDA context, then starts the requested one.

Set `DECIDEALOT_PROVIDER_IDLE_UNLOAD_SECONDS` to choose when an idle provider releases its model and Torch memory.

## Configuration

Pass configuration with `--env-file` or your container manager. The image uses fixed internal ports. Docker port publishing controls where the service is reachable.

| Variable | Default | Meaning |
| --- | --- | --- |
| `DECIDEALOT_API_KEY` | empty | Optional Bearer token for every public API and MCP request. |
| `DECIDEALOT_MAX_REQUEST_BYTES` | `1048576` | Maximum JSON request body size. |
| `DECIDEALOT_PROVIDER_IDLE_UNLOAD_SECONDS` | `600` | Idle time before automatic unload. Set `0` to disable only timeout-based unloads. |
| `DECIDEALOT_LAYA_ENABLED` | `true` | Download and expose Laya selectors. |
| `DECIDEALOT_VON_ENABLED` | `true` | Download