# MotionSpec — verified web motion (reduced-motion / WCAG) (npm · motionspec)

Verifies web animation vs WCAG 2.2.2/2.3.3: validated specs, deterministic reduced-motion-safe CSS.

- Trust score: 68/100 (medium)
- Change this week: −9
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `api.motionspec.dev`: 64/100, [markdown](https://verifymcp.io/servers/masterplayspots-motionspec/api.md), [page](https://verifymcp.io/servers/masterplayspots-motionspec/api)
- npm · `motionspec`: 68/100 (this document), [markdown](https://verifymcp.io/servers/masterplayspots-motionspec/motionspec.md), [page](https://verifymcp.io/servers/masterplayspots-motionspec/motionspec)

## Channel facts

- Registry: `npm`
- Package: `motionspec`
- Version: `1.2.6`
- 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**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), 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 (94 of 98), 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 (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 395 tokens (~79/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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 masterplayspots-motionspec -- npx -y motionspec
```

### Codex

```bash
codex mcp add masterplayspots-motionspec -- npx -y motionspec
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "masterplayspots-motionspec": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "motionspec"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add masterplayspots-motionspec --command npx --arg -y --arg motionspec
```

### Hermes

```yaml
mcp_servers:
  masterplayspots-motionspec:
    command: "npx"
    args: ["-y", "motionspec"]
```

### Other

```json
{
  "mcpServers": {
    "masterplayspots-motionspec": {
      "command": "npx",
      "args": [
        "-y",
        "motionspec"
      ]
    }
  }
}
```

## 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.

### 2026-08-03 (score 68, −3)

No change was recorded against any check on this day. Supply Chain Security went from 97 to 86. Other categories moved too: Stability & Change Management rose 4.

### 2026-08-02 (score 71, +29)

- [security regression] Provenance: fail → unverified
- [security regression] Install scripts: pass → unverified
- [security improvement] GHSA-frvp-7c67-39w9 no longer affects this package
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] License: pass → unverified
- [functional regression] Capabilities: pass → unverified
- [functional regression] Maintenance: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Security disclosure: fail → unverified
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] Dependency health: unverified → partial
- [functional] First check of Schema quality: unverified
- [functional] Licence: MIT
- [functional] Package version: 1.2.5 → 1.2.6

### 2026-08-01 (score 42, −9)

- [security regression] Known CVEs: fail → unverified
- [functional regression] Dependency health: partial → unverified

### 2026-07-31 (score 51, +12)

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

### 2026-07-30 (score 39, −38)

- [security regression] Install scripts: pass → unverified
- [security regression] Known CVEs: fail → unverified
- [security regression] Provenance: fail → unverified
- [security regression] Malware scan: pass → unverified
- [security improvement] GHSA-frvp-7c67-39w9 no longer affects this package
- [functional regression] Maintenance: pass → unverified
- [functional regression] Dependency health: partial → unverified
- [functional regression] License: pass → unverified
- [functional] Licence: MIT

### 2026-07-27 (score 77, +34)

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

### 2026-07-26 (score 43)

First indexed and scored.

## MCP tools (5)

### `motion_catalog` (~52 tokens)

MotionSpec catalog & authoring rules

Returns the catalog of verified motion primitives (names, purpose, parameter schemas, defaults) plus the authoring rules for writing a MotionSpec. Call this FIRST, then write the spec yourself and pass it to motion_compile.

### `motion_validate` (~59 tokens)

Validate a MotionSpec (trust boundary)

Checks a MotionSpec against the schema, the primitive allow-list, parameter bounds and injection rules. Fail-closed: returns ok=false with precise errors. Use to pre-check a spec before compiling.

Input parameters:

- `spec` (object, required): The MotionSpec JSON object

### `motion_compile` (~99 tokens)

Compile a MotionSpec to GSAP/CSS

Validates (fail-closed) and deterministically compiles a MotionSpec into production-ready vanilla-GSAP JavaScript and CSS, with enforced prefers-reduced-motion fallbacks and a performance-budget report. Same spec always yields identical code. Returns {ok, js, css, report} or {ok:false, errors}.

Input parameters:

- `spec` (object, required): The MotionSpec JSON object
- `specName` (string): Optional name used in the artifact header

### `motion_audit` (~153 tokens)

Audit a live URL for motion accessibility (WCAG 2.2.2 / 2.3.3)

Static motion-a11y checker: fetches a URL's HTML + linked stylesheets and scans the CSS for (1) animation/transition without a prefers-reduced-motion guard, (2) animated non-transform/opacity properties, (3) infinite animations with no pause path, (4) <marquee>/autoplay >5s. Runtime motion (WAAPI/GSAP/JS) is disclosed as 'not audited (V2)'. Returns {ok, score, findings, summary, badge, disclosures, markdown}; a clean site earns the badge 'reduced-motion-safe'. Does network I/O (openWorldHint).

Input parameters:

- `url` (string, required): The page URL to audit (http/https).

### `motion_stats` (~32 tokens)

MotionSpec usage telemetry

Summary of routing/compile telemetry (counts per outcome). Escalation clusters indicate which new primitive the catalog needs next.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/masterplayspots-motionspec/motionspec#diagnostics

## Score history

- 2026-08-03: 68
- 2026-08-02: 71
- 2026-08-01: 42
- 2026-07-31: 51
- 2026-07-30: 39
- 2026-07-28: 77
- 2026-07-27: 77
- 2026-07-26: 43

## Links

- npm package: https://www.npmjs.com/package/motionspec
- Socket report: https://socket.dev/npm/package/motionspec
- Repository: https://github.com/MasterPlayspots/motionspec
- Website: https://motionspec.dev/
- Changelog RSS feed: https://verifymcp.io/servers/masterplayspots-motionspec/motionspec/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/masterplayspots-motionspec/motionspec/changelog.json
- HTML version of this page: https://verifymcp.io/servers/masterplayspots-motionspec/motionspec