# io.github.gregario/astronomy-oracle (npm · astronomy-oracle)

Astronomical catalog data and observing session planner. 13,000+ objects from OpenNGC.

- Trust score: 69/100 (medium)
- Change this week: +24
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `astronomy-oracle`: 69/100 (this document), [markdown](https://verifymcp.io/servers/gregario-astronomy-oracle/astronomy-oracle.md), [page](https://verifymcp.io/servers/gregario-astronomy-oracle/astronomy-oracle)

## Channel facts

- Registry: `npm`
- Package: `astronomy-oracle`
- Version: `0.1.0`
- 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 (MIT).
  - Actively maintained (last published 139 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 73/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 461 tokens (~153/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - 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 gregario-astronomy-oracle -- npx -y astronomy-oracle
```

### Codex

```bash
codex mcp add gregario-astronomy-oracle -- npx -y astronomy-oracle
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add gregario-astronomy-oracle --command npx --arg -y --arg astronomy-oracle
```

### Hermes

```yaml
mcp_servers:
  gregario-astronomy-oracle:
    command: "npx"
    args: ["-y", "astronomy-oracle"]
```

### Other

```json
{
  "mcpServers": {
    "gregario-astronomy-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "astronomy-oracle"
      ]
    }
  }
}
```

## 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 69, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 65, +60)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: 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 improvement] Tool coverage: unverified → 100
- [functional] Licence: MIT

### 2026-08-01 (score 5, −22)

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

### 2026-07-31 (score 27, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 45)

First indexed and scored.

## MCP tools (3)

### `lookup_object` (~135 tokens)

Look up a celestial object by Messier number (e.g. M31), NGC/IC designation (e.g. NGC7000), or common name (e.g. Andromeda Galaxy). Optionally compute visibility from a given location and time.

Input parameters:

- `date` (string): Date/time in ISO 8601 format (defaults to now)
- `latitude` (number): Observer latitude in degrees (-90 to 90)
- `longitude` (number): Observer longitude in degrees (-180 to 180)
- `name` (string, required): Object name, Messier number, NGC/IC designation, or common name

### `search_objects` (~170 tokens)

Search and filter the celestial object catalog by type, constellation, magnitude, angular size, or catalog membership. Returns a formatted table of matching objects sorted by brightness.

Input parameters:

- `catalog` (string): Filter by catalog membership
- `constellation` (string): IAU constellation abbreviation (e.g. Ori, And, Sgr)
- `limit` (number): Maximum number of results (default 20, max 100)
- `maxMagnitude` (number): Maximum (faintest) visual magnitude to include
- `minMagnitude` (number): Minimum (brightest) visual magnitude to include
- `minSize` (number): Minimum angular size in arcminutes
- `type` (string): Object type code (e.g. G=Galaxy, PN=Planetary Nebula, OCl=Open Cluster)

### `plan_session` (~156 tokens)

Generate an observing session plan for a given location and date. Returns the best celestial objects to observe grouped by time window (evening, midnight, pre-dawn), scored by observability.

Input parameters:

- `date` (string): Date in ISO 8601 format (defaults to today)
- `latitude` (number, required): Observer latitude in degrees (-90 to 90)
- `longitude` (number, required): Observer longitude in degrees (-180 to 180)
- `maxMagnitude` (number): Maximum (faintest) visual magnitude to include
- `minAltitude` (number): Minimum peak altitude in degrees (default 15)
- `types` (array): Object type codes to include (e.g. ["G", "PN", "OCl"])

## Diagnostics

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

## Score history

- 2026-08-03: 69
- 2026-08-02: 65
- 2026-08-01: 5
- 2026-07-31: 27
- 2026-07-30: 45
- 2026-07-28: 45
- 2026-07-27: 45

## Links

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