# three.ws Scenes (npm · @three-ws/scene-mcp)

Compose a placed 3D diorama from one sentence, export a forged world, browse saved scenes.

- Trust score: 67/100 (medium)
- Change this week: +23
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@three-ws/scene-mcp`: 67/100 (this document), [markdown](https://verifymcp.io/servers/nirholas-scene-mcp/three-ws-scene-mcp.md), [page](https://verifymcp.io/servers/nirholas-scene-mcp/three-ws-scene-mcp)

## Channel facts

- Registry: `npm`
- Package: `@three-ws/scene-mcp`
- Version: `0.2.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 22 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 855 tokens (~171/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add nirholas-scene-mcp -- npx -y @three-ws/scene-mcp
```

### Codex

```bash
codex mcp add nirholas-scene-mcp -- npx -y @three-ws/scene-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "nirholas-scene-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@three-ws/scene-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add nirholas-scene-mcp --command npx --arg -y --arg @three-ws/scene-mcp
```

### Hermes

```yaml
mcp_servers:
  nirholas-scene-mcp:
    command: "npx"
    args: ["-y", "@three-ws/scene-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "nirholas-scene-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/scene-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-02 (score 67, +48)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] License: unverified → pass
- [functional improvement] Stability: unverified → 0.20
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional] First check of Schema quality: unverified
- [functional] Licence: Apache-2.0

### 2026-07-31 (score 19, −7)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 26, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 44)

First indexed and scored.

## MCP tools (5)

### `compose_scene` (~143 tokens)

Compose a 3D diorama plan from one sentence

Compose a tiny 3D diorama from one short sentence. Returns a PLAN: an evocative title, a mood (dawn/day/dusk/night), ground + island type, a color palette, and 2–8 placed objects — each with a single-object forge prompt, position, scale and rotation. No meshes are generated yet and nothing is saved; feed the plan to the three.ws diorama page (or /api/forge per object) to build the world. Read-mostly but runs live LLM inference.

Input parameters:

- `prompt` (string, required): One short sentence describing the world to build, e.g. "a lonely lighthouse on a stormy cliff".

### `get_scene` (~74 tokens)

Fetch a saved diorama by id

Fetch one saved diorama (a fully-forged 3D world) by its id, including its title, mood, palette, ground, and the placed objects with their GLB URLs. Returns the orbitable viewer URL. Read-only.

Input parameters:

- `id` (string, required): The diorama id returned when the world was saved.

### `list_scenes` (~98 tokens)

List recent or featured dioramas

Browse the public diorama gallery — the most recent saved worlds, or the featured set. Returns a list of cards (id, title, mood, thumbnail/preview, view count) plus each world's viewer URL. Read-only.

Input parameters:

- `limit` (integer): How many to return (1–50, default 24).
- `list` (string): Which gallery to read: newest saved worlds ("recent") or the curated set ("featured").

### `export_scene` (~164 tokens)

Export a forged diorama as one GLB scene

Merge an already-forged diorama (objects with real glbUrl values, e.g. from your own forging after compose_scene, or fetched via get_scene) into ONE glTF 2.0 binary: every object becomes a named, selectable node, plus a real ground disc and mood-tuned lighting. Returns the merged GLB URL and a ready-to-open three.ws Scene Studio link. Objects that never forged are skipped and reported, not treated as a failure — a partial world still exports. Requires the target deployment to have object storage configured (three.ws does).

Input parameters:

- `diorama` (object, required): The diorama object to export — same shape returned by compose_scene/get_scene, with each object you want included carrying status:"ready" and a real glbUrl.

### `build_world` (~166 tokens)

Build a complete 3D world from one sentence (no browser needed)

One sentence → a fully forged, exported 3D world, entirely server-side: composes the scene plan, forges every object on the free text→3D lane, and merges the result into one GLB with named, selectable nodes plus ground and lighting. Returns the populated diorama, the merged GLB URL, and a ready-to-open Scene Studio link. This is the whole progressive /diorama browser flow collapsed into one call — it can take a couple of minutes for a full object set. Partial forges are not failures: whatever forged is exported, and `skipped` names anything that did not.

Input parameters:

- `prompt` (string, required): One short sentence describing the world to build, e.g. "a neon alley with a food cart and two streetlights".

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/nirholas-scene-mcp/three-ws-scene-mcp#diagnostics

## Score history

- 2026-08-03: 67
- 2026-08-02: 67
- 2026-08-01: 19
- 2026-07-31: 19
- 2026-07-30: 26
- 2026-07-28: 44
- 2026-07-27: 44

## Links

- npm package: https://www.npmjs.com/package/@three-ws/scene-mcp
- Socket report: https://socket.dev/npm/package/@three-ws/scene-mcp
- Repository: https://github.com/nirholas/three.ws
- Website: https://three.ws/
- Changelog RSS feed: https://verifymcp.io/servers/nirholas-scene-mcp/three-ws-scene-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/nirholas-scene-mcp/three-ws-scene-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/nirholas-scene-mcp/three-ws-scene-mcp