# io.github.biocross/displaybuddy-mcp (npm · @biocross/displaybuddy-mcp)

MCP server for controlling Mac monitors via DisplayBuddy — adjust brightness and more.

- Trust score: 70/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-04

## Components

- npm · `@biocross/displaybuddy-mcp`: 70/100 (this document), [markdown](https://verifymcp.io/servers/biocross-displaybuddy-mcp/biocross-displaybuddy-mcp.md), [page](https://verifymcp.io/servers/biocross-displaybuddy-mcp/biocross-displaybuddy-mcp)

## Channel facts

- Registry: `npm`
- Package: `@biocross/displaybuddy-mcp`
- Version: `3.3.0`
- 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 2026-08-04.

- **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 (MIT).
  - Actively maintained (last published 142 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 534 tokens (~59/item across 9 items; 9 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 30/100
  - Stability observed for 9 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 biocross-displaybuddy-mcp -- npx -y @biocross/displaybuddy-mcp
```

### Codex

```bash
codex mcp add biocross-displaybuddy-mcp -- npx -y @biocross/displaybuddy-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add biocross-displaybuddy-mcp --command npx --arg -y --arg @biocross/displaybuddy-mcp
```

### Hermes

```yaml
mcp_servers:
  biocross-displaybuddy-mcp:
    command: "npx"
    args: ["-y", "@biocross/displaybuddy-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "biocross-displaybuddy-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@biocross/displaybuddy-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.

### 2026-08-03 (score 70, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 66, +30)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 36, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-07-31 (score 21, +15)

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

### 2026-07-30 (score 6, −40)

- [security regression] Malware scan: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (9)

### `displaybuddy_status` (~43 tokens)

Get a quick overview of all connected displays with their current brightness, contrast, volume, and input source. Always call this first to discover display names before using other tools.

### `displaybuddy_list` (~31 tokens)

List all connected displays with full details including UUID, type, control mode, max values, and capability flags.

### `displaybuddy_get` (~47 tokens)

Get current properties of a specific display.

Input parameters:

- `display` (string, required): Display name (case-insensitive).
- `property` (string): Specific property to get. Omit for all properties.

### `displaybuddy_set` (~189 tokens)

Set display properties like brightness, contrast, volume, input source, or rotation. Can target a specific display by name or all displays at once.

Input parameters:

- `all` (boolean): Set to true to target all displays.
- `brightness` (integer): Brightness level (0-100).
- `contrast` (integer): Contrast level (0-100).
- `display` (string): Display name (case-insensitive). Omit if using "all".
- `input` (string): Input source name (hdmi1, hdmi2, displayport1, displayport2, thunderbolt, usbc, usbc2) or DDC code.
- `rotation` (string): Display rotation in degrees.
- `volume` (integer): Volume level (0-100).
- `xdr_brightness` (integer): XDR/Ultra-bright brightness for MacBook Pro (0-100).

### `displaybuddy_preset_list` (~17 tokens)

List all saved display presets.

### `displaybuddy_preset_activate` (~46 tokens)

Activate a saved display preset by name.

Input parameters:

- `delay` (number): Delay in seconds before activating the preset.
- `name` (string, required): Name of the preset to activate.

### `displaybuddy_schedule_list` (~26 tokens)

List all display automation schedules with their trigger type, preset, and enabled status.

### `displaybuddy_schedule_toggle` (~47 tokens)

Enable or disable a display automation schedule.

Input parameters:

- `enabled` (boolean, required): Set to true to enable, false to disable.
- `id` (string, required): Schedule UUID (or unique prefix).

### `displaybuddy_sync` (~88 tokens)

Manage display sync. Sync makes all displays follow one source display's brightness, contrast, and volume. Can check status, enable with a source display, or disable.

Input parameters:

- `action` (string, required): "status" to check, "enable" to start syncing, "disable" to stop.
- `display` (string): Display name to use as sync source (required when action is "enable").

## Diagnostics

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

## Score history

- 2026-08-04: 70
- 2026-08-03: 70
- 2026-08-02: 66
- 2026-08-01: 36
- 2026-07-31: 21
- 2026-07-30: 6
- 2026-07-28: 46
- 2026-07-27: 46

## Links

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