# io.github.Junhui20/mycal (npm · @catlabtech/mycal-mcp-server)

Malaysia public holidays, school terms, business days & a leave optimizer (13 tools).

- Trust score: 67/100 (medium)
- Change this week: +21
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@catlabtech/mycal-mcp-server`: 67/100 (this document), [markdown](https://verifymcp.io/servers/junhui20-mycal/catlabtech-mycal-mcp-server.md), [page](https://verifymcp.io/servers/junhui20-mycal/catlabtech-mycal-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `@catlabtech/mycal-mcp-server`
- Version: `0.1.4`
- 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 (96 of 100), 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 (96 of 100), 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 27 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 856 tokens (~65/item across 13 items; 13 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**: 94/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 83% 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 junhui20-mycal -- npx -y @catlabtech/mycal-mcp-server
```

### Codex

```bash
codex mcp add junhui20-mycal -- npx -y @catlabtech/mycal-mcp-server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "junhui20-mycal": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@catlabtech/mycal-mcp-server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add junhui20-mycal --command npx --arg -y --arg @catlabtech/mycal-mcp-server
```

### Hermes

```yaml
mcp_servers:
  junhui20-mycal:
    command: "npx"
    args: ["-y", "@catlabtech/mycal-mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "junhui20-mycal": {
      "command": "npx",
      "args": [
        "-y",
        "@catlabtech/mycal-mcp-server"
      ]
    }
  }
}
```

## 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 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-02 (score 66, +31)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [functional regression] Security disclosure: fail → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Schema quality: unverified → good
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional] First check of Schema quality: unverified
- [functional] Licence: MIT

### 2026-08-01 (score 35, −2)

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

### 2026-07-31 (score 37, −9)

- [security regression] Provenance: unverified → fail
- [security regression] Malware scan: pass → unverified
- [security improvement] Install scripts: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] License: unverified → pass
- [functional] Licence: MIT

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

First indexed and scored.

## MCP tools (13)

### `get_malaysia_holidays` (~102 tokens)

Get Malaysia public holidays. Covers all 16 regions (13 states + 3 federal territories) including Islamic holidays with tentative/confirmed status.

Input parameters:

- `month` (integer)
- `state` (string): State code or alias (e.g. 'selangor', 'KL', 'penang')
- `status` (string)
- `type` (string)
- `year` (integer, required): Year (e.g. 2026)

### `check_malaysia_holiday` (~80 tokens)

Check if a specific date is a public holiday, weekend, or working day in Malaysia. Returns holiday details, school day status. Use when user asks 'is X a holiday?', 'do I work on X?'.

Input parameters:

- `date` (string, required): Date in YYYY-MM-DD format
- `state` (string): State code or alias

### `next_malaysia_holiday` (~88 tokens)

Find the next upcoming public holiday in Malaysia. Use when user asks 'when is the next holiday?'.

Input parameters:

- `afterDate` (string): Find holidays after this date (YYYY-MM-DD). Defaults to today.
- `count` (integer): Number of holidays to return (default 1)
- `state` (string): State code or alias
- `type` (string)

### `malaysia_business_days` (~58 tokens)

Count business/working days between two dates for a Malaysian state. Excludes weekends and public holidays.

Input parameters:

- `end` (string, required): End date
- `start` (string, required): Start date
- `state` (string, required): State code or alias

### `malaysia_long_weekends` (~56 tokens)

Find all long weekends (3+ consecutive non-working days) in Malaysia for a given year.

Input parameters:

- `state` (string): State code or alias (default: kuala-lumpur)
- `year` (integer, required): Year

### `malaysia_leave_optimizer` (~102 tokens)

Find the most efficient annual-leave days to take to maximise consecutive days off in Malaysia (e.g. 'take 2 days → get 5 off'). Ideal for planning trips around public holidays and weekends, per state.

Input parameters:

- `maxLeave` (integer): Max annual-leave days to spend per break (default 3)
- `state` (string): State code or alias (default: kuala-lumpur)
- `year` (integer, required): Year

### `list_malaysia_states` (~33 tokens)

List all 16 Malaysian regions (13 states + 3 federal territories) with weekend configurations and group assignments.

### `resolve_malaysia_state` (~50 tokens)

Resolve a state name or alias (e.g. 'KL', 'Penang', 'JB') to the canonical state code.

Input parameters:

- `query` (string, required): State name or alias to resolve

### `malaysia_holiday_changes` (~41 tokens)

Get recent changes to Malaysia holiday data (new holidays, confirmations, ad-hoc announcements).

Input parameters:

- `limit` (integer): Max entries (default 10)

### `malaysia_school_terms` (~59 tokens)

Get Malaysia school term dates and day counts. Group A = Kedah/Kelantan/Terengganu, Group B = all other states.

Input parameters:

- `group` (string): School group (default B)
- `year` (integer, required): Year

### `malaysia_school_holidays` (~54 tokens)

Get Malaysia school holidays including cuti penggal, mid-year break, year-end break, and KPM bonus holidays.

Input parameters:

- `group` (string): School group (default B)
- `year` (integer, required): Year

### `malaysia_exams` (~47 tokens)

Get Malaysia public exam schedule — SPM, STPM, MUET, PT3. Includes results announcement dates.

Input parameters:

- `type` (string)
- `year` (integer, required): Year

### `malaysia_is_school_day` (~86 tokens)

Check if a date is a school day in Malaysia. Accepts state (auto-resolves to group) or group directly. Combines public holidays, school holidays, and weekend status.

Input parameters:

- `date` (string, required): Date in YYYY-MM-DD
- `group` (string): School group directly
- `state` (string): State code or alias (auto-resolves to group)

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/junhui20-mycal/catlabtech-mycal-mcp-server#diagnostics

## Score history

- 2026-08-03: 67
- 2026-08-02: 66
- 2026-08-01: 35
- 2026-07-31: 37
- 2026-07-29: 46
- 2026-07-28: 46
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/@catlabtech/mycal-mcp-server
- Socket report: https://socket.dev/npm/package/@catlabtech/mycal-mcp-server
- Repository: https://github.com/Junhui20/malaysia-calendar-api
- Changelog RSS feed: https://verifymcp.io/servers/junhui20-mycal/catlabtech-mycal-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/junhui20-mycal/catlabtech-mycal-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/junhui20-mycal/catlabtech-mycal-mcp-server