MCP Observatory
6m ago Tracked 56,806 Last 6m ago 24h 2,381
github TypeScript analyzed c1d05ec

cyanheads/astronomy-mcp-server

github

Offline observational astronomy — planet and moon positions, rise/set, phases, eclipses, and seasons for any place and time via MCP. STDIO or Streamable HTTP.

maintainer
cyanheads
licence
Apache-2.0
first seen
2026-06-28
last seen
2026-08-25
releases · 30d
6
short id

Drift inferred · capture-to-capture

No drift recorded — single capability capture; advisories appear once its surface changes.

capabilities 7 tools
transport stdio · streamable-http · http verified reported listed in the official MCP registry counts 7 tools · 0 res · 0 prompts permission surface via code analysis

tools

  • astronomy_find_events
  • astronomy_get_ephemeris
  • astronomy_get_moon_phase
  • astronomy_get_rise_set
  • astronomy_get_satellite_passes
  • astronomy_get_sky_position
  • astronomy_list_visible
skills & danger signals github-tarball
prompt-surface shipped agent-instruction files + hidden-content / dangerous-code findings — quoted from the analyzed source

analyzed commit c1d05ec · analyzer v33 · 1d ago

skills & prompt files 34

code evidence vv0.2.9 · github-tarball
evidence-backed findings quoted directly from the published source artifact — not inferred

code files: 46

filesystem 15

  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/build-changelog.ts :32 import { existsSync, readdirSync, readFileSync, writeFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/build.ts :17 import { readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-dependency-specifiers.ts :38 import { existsSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-docs-sync.ts :22 import { existsSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-framework-antipatterns.ts :39 import { existsSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-skill-versions.ts :33 import { existsSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-skills-sync.ts :37 import { existsSync, readdirSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/clean-mcpb.ts :29 import { existsSync, statSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/clean.ts :15 import { readdir, rm } from 'node:fs/promises';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/devcheck.ts :3 import { existsSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/lint-mcp.ts :19 import { existsSync, readdirSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/lint-packaging.ts :52 import { existsSync, readdirSync, readFileSync } from 'node:fs';
show 3 more
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/list-skills.ts :21 import { existsSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/release-github.ts :33 import { existsSync, readFileSync } from 'node:fs';
  • fs (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/tree.ts :24 import type { Dirent } from 'node:fs';

shell / exec 7

  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/build.ts :16 import { execFile } from 'node:child_process';
  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-framework-antipatterns.ts :38 import { spawnSync } from 'node:child_process';
  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/check-skill-versions.ts :32 import { spawnSync } from 'node:child_process';
  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/clean-mcpb.ts :28 import { execFileSync } from 'node:child_process';
  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/devcheck.ts :2 import { type ChildProcess, spawn, spawnSync } from 'node:child_process';
  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/lint-packaging.ts :51 import { execFileSync } from 'node:child_process';
  • shell (weak) cyanheads-astronomy-mcp-server-c1d05ec/scripts/release-github.ts :32 import { spawnSync } from 'node:child_process';

tool registrations 7

  • astronomy_find_events cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/find-events.tool.ts :120
  • astronomy_get_ephemeris cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/get-ephemeris.tool.ts :116
  • astronomy_get_moon_phase cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/get-moon-phase.tool.ts :62
  • astronomy_get_rise_set cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/get-rise-set.tool.ts :120
  • astronomy_get_satellite_passes cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/get-satellite-passes.tool.ts :79
  • astronomy_get_sky_position cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/get-sky-position.tool.ts :92
  • astronomy_list_visible cyanheads-astronomy-mcp-server-c1d05ec/src/mcp-server/tools/definitions/list-visible.tool.ts :55

declared dependencies 13

  • @cyanheads/mcp-ts-core@^0.12.3
  • astronomy-engine@^2.1.19
  • pino-pretty@^13.1.3
  • satellite.js@^7.1.0
  • zod@^4.4.3
  • @biomejs/biome@2.5.10
  • @socketsecurity/bun-security-scanner@^1.1.2
  • @types/node@^26.2.0
  • depcheck@^1.4.7
  • ignore@^7.0.6
  • tsc-alias@^1.9.2
  • typescript@^7.0.2
show 1 more
  • vitest@^4.1.11