# io.github.ganguoguo444004-coder/cosine-astro-mcp (npm · cosine-astro-mcp) Astrology: natal charts, transits, synastry, retrogrades, profections. Computed offline. - Trust score: 62/100 (medium) - Change this week: 0 - Registry status: active - Liveness: live - Owner verified: no - Last scored: 2026-11-05 ## Components - npm · `cosine-astro-mcp`: 62/100 (this document), [markdown](https://verifymcp.io/servers/ganguoguo444004-coder-cosine-astro-mcp/cosine-astro-mcp.md), [page](https://verifymcp.io/servers/ganguoguo444004-coder-cosine-astro-mcp/cosine-astro-mcp) ## Channel facts - Registry: `npm` - Package: `cosine-astro-mcp` - 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 2026-11-05. - **Supply Chain Security**: 81/100 - No malware found by supply-chain analysis. - CVE check failed: a known high-severity CVE affects zod 4.6.5, a direct dependency. A fixed version is available. - No install/post-install scripts declared. - 31 of 94 dependencies flagged as unhealthy. - **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 18 days ago). - Disclosure check failed: no security disclosure policy was found in the source repository. - **Schema Quality & AI Usability**: 62/100 - AI-judged instruction clarity (good). - Context-footprint check failed: tool/resource definitions use about 1340 tokens (~223/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params. - Usage-examples check failed: none of the tools include examples. - **Stability & Change Management**: 0/100 - Stability not yet verified: not enough scan history yet (needs a 30-day window). - **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. - **Tool Safety**: 100/100 - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured. - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation. - An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it. - **Capabilities**: 100/100 - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28. **Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm. ## Install ### How do I install the io.github.ganguoguo444004-coder/cosine-astro-mcp server? io.github.ganguoguo444004-coder/cosine-astro-mcp runs locally as an npm package, launched with npx -y cosine-astro-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation. ### Claude ```bash claude mcp add ganguoguo444004-coder-cosine-astro-mcp -- npx -y cosine-astro-mcp ``` ### Cursor ```json { "mcpServers": { "ganguoguo444004-coder-cosine-astro-mcp": { "command": "npx", "args": [ "-y", "cosine-astro-mcp" ] } } } ``` ### VS Code ```json { "servers": { "ganguoguo444004-coder-cosine-astro-mcp": { "command": "npx", "args": [ "-y", "cosine-astro-mcp" ] } } } ``` ### Codex ```bash codex mcp add ganguoguo444004-coder-cosine-astro-mcp -- npx -y cosine-astro-mcp ``` ### opencode ```json { "$schema": "https://opencode.ai/config.json", "mcp": { "ganguoguo444004-coder-cosine-astro-mcp": { "type": "local", "command": [ "npx", "-y", "cosine-astro-mcp" ], "enabled": true } } } ``` ### OpenClaw ```bash openclaw mcp add ganguoguo444004-coder-cosine-astro-mcp --command npx --arg -y --arg cosine-astro-mcp ``` ### Hermes ```yaml mcp_servers: ganguoguo444004-coder-cosine-astro-mcp: command: "npx" args: ["-y", "cosine-astro-mcp"] ``` ### Netclaw ```json { "McpServers": { "ganguoguo444004-coder-cosine-astro-mcp": { "Transport": "stdio", "Command": "npx", "Arguments": [ "-y", "cosine-astro-mcp" ] } } } ``` ### Vellum ```bash assistant mcp add ganguoguo444004-coder-cosine-astro-mcp -t stdio -c npx -a -y cosine-astro-mcp ``` ### Other ```json { "mcpServers": { "ganguoguo444004-coder-cosine-astro-mcp": { "command": "npx", "args": [ "-y", "cosine-astro-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. ### 2026-10-24 (score 62, −6) - [security regression] CVE-2023-54404 affects this package: high - [security regression] Known CVEs: pass → fail ### 2026-10-18 (score 68, +15) - [security improvement] Malware scan: unverified → pass ### 2026-10-17 (score 53) First indexed and scored. ## MCP tools (6) ### `natal_chart` (~317 tokens) Natal chart Cast a tropical natal (birth) chart: the ten planets with sign, degree, house and retrograde flag; Ascendant and Midheaven; twelve house cusps (Placidus by default); major aspects with orbs and applying/separating; and the dominant element and modality. Works without a birth time (no angles or houses then). Input parameters: - `city` (string): Optional shortcut: a city from the built-in offline table (about 110 large cities, English or Chinese name, e.g. "Beijing", "上海", "London", "New York"). Explicit latitude/longitude/timezone override… - `date` (string, required): Birth date (local calendar date), YYYY-MM-DD - `house_system` (string): House system. Placidus (default) falls back to whole-sign inside the polar circles, where it has no solution. - `latitude` (number): Birthplace latitude in degrees, north positive - `longitude` (number): Birthplace longitude in degrees, east positive (New York is about -74.0) - `time` (string): Local clock time of birth, 24-hour HH:MM. Omit if unknown: planets are then cast for local noon and there are no Ascendant, Midheaven or houses. - `timezone` (string): IANA time zone of the birthplace, e.g. "Asia/Shanghai", "America/New_York". Historical daylight saving time is applied automatically. Required unless `city` is given. ### `transits` (~193 tokens) Transits Planet positions for a date and time (default: now), and, given a natal chart, the major aspects the transiting planets make to the natal planets, Ascendant and Midheaven within an orb (default 2°), with the natal house each transiting planet is passing through. Input parameters: - `date` (string): Date of the transits, YYYY-MM-DD. Omit for the current moment. - `max_orb` (number): Largest orb in degrees for transit-to-natal aspects (default 2) - `natal` (object): The natal chart to compare against. Omit to get only the planets' positions. - `time` (string): Local time of the transits, HH:MM (default 12:00 when a date is given) - `timezone` (string): IANA time zone for the transit date and output times (default: the natal chart's zone, else UTC) ### `synastry` (~100 tokens) Synastry Compare two natal charts: the major aspects between person A's planets (and Ascendant) and person B's, with orbs (conjunction/opposition 6°, square/trine 5°, sextile 3°), where each person's planets fall in the other's houses, and a simple descriptive tally (not a compatibility score). Input parameters: - `person_a` (object, required): First person's birth data - `person_b` (object, required): Second person's birth data ### `mercury_retrograde` (~141 tokens) Mercury retrograde Mercury retrograde periods overlapping a date range (default: the next 12 months): pre-shadow start, station retrograde, station direct and post-shadow end (to about a minute, in UTC and a chosen time zone), with the degrees and signs of the two stations. Input parameters: - `end_date` (string): End of the range, inclusive, YYYY-MM-DD (default: one year after the start). At most 30 years. - `start_date` (string): Start of the range, YYYY-MM-DD (default: today) - `timezone` (string): IANA time zone for the range and the local times in the output (default UTC) ### `annual_profection` (~371 tokens) Annual profection Hellenistic annual profection for an age or a date: the profected house (whole-sign, counted from the Ascendant; from the Sun's sign if the birth time is unknown), its sign, the lord of the year (traditional ruler, with the modern co-ruler) and where that lord sits in the natal chart, plus the dates the profection year runs. Input parameters: - `age` (integer): Age in completed years. Takes precedence over `on_date`. - `city` (string): Optional shortcut: a city from the built-in offline table (about 110 large cities, English or Chinese name, e.g. "Beijing", "上海", "London", "New York"). Explicit latitude/longitude/timezone override… - `date` (string, required): Birth date (local calendar date), YYYY-MM-DD - `house_system` (string): House system. Placidus (default) falls back to whole-sign inside the polar circles, where it has no solution. - `latitude` (number): Birthplace latitude in degrees, north positive - `longitude` (number): Birthplace longitude in degrees, east positive (New York is about -74.0) - `on_date` (string): Date to find the profection year for, YYYY-MM-DD (default: today in the birth time zone) - `time` (string): Local clock time of birth, 24-hour HH:MM. Omit if unknown: planets are then cast for local noon and there are no Ascendant, Midheaven or houses. - `timezone` (string): IANA time zone of the birthplace, e.g. "Asia/Shanghai", "America/New_York". Historical daylight saving time is applied automatically. Required unless `city` is given. ### `moon_phase` (~115 tokens) Moon phase The Moon's phase at a moment (default: now): phase name, illuminated fraction, Sun–Moon angle, days since new moon, the Moon's and Sun's signs, and the next new, first-quarter, full and last-quarter moons. Input parameters: - `date` (string): Date, YYYY-MM-DD. Omit for the current moment. - `time` (string): Local time, HH:MM (default 12:00 when a date is given) - `timezone` (string): IANA time zone (default UTC) ## Diagnostics Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/ganguoguo444004-coder-cosine-astro-mcp/cosine-astro-mcp#diagnostics ## Score history - 2026-11-05: 62 - 2026-11-04: 62 - 2026-11-03: 62 - 2026-11-02: 62 - 2026-11-01: 62 - 2026-10-31: 62 - 2026-10-30: 62 - 2026-10-29: 62 - 2026-10-28: 62 - 2026-10-27: 62 - 2026-10-26: 62 - 2026-10-25: 62 - 2026-10-24: 62 - 2026-10-23: 68 - 2026-10-22: 68 - 2026-10-21: 68 - 2026-10-20: 68 - 2026-10-19: 68 - 2026-10-18: 68 - 2026-10-17: 53 ## Common questions ### What is the io.github.ganguoguo444004-coder/cosine-astro-mcp server? io.github.ganguoguo444004-coder/cosine-astro-mcp is listed in the public MCP registry as io.github.ganguoguo444004-coder/cosine-astro-mcp. Astrology: natal charts, transits, synastry, retrogrades, profections. Computed offline. This page covers its npm package (cosine-astro-mcp). ### Is the io.github.ganguoguo444004-coder/cosine-astro-mcp server safe to use? io.github.ganguoguo444004-coder/cosine-astro-mcp scores 62 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm. ### What tools does the io.github.ganguoguo444004-coder/cosine-astro-mcp server expose? io.github.ganguoguo444004-coder/cosine-astro-mcp exposes 6 tools: natal_chart, transits, synastry, mercury_retrograde, annual_profection, moon_phase. Their descriptions and schemas cost roughly 1,237 tokens of context every time the server is loaded. ### Is the io.github.ganguoguo444004-coder/cosine-astro-mcp server still maintained? io.github.ganguoguo444004-coder/cosine-astro-mcp is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced. ### What licence is the io.github.ganguoguo444004-coder/cosine-astro-mcp server under? io.github.ganguoguo444004-coder/cosine-astro-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls. ## Links - npm package: https://www.npmjs.com/package/cosine-astro-mcp - Socket report: https://socket.dev/npm/package/cosine-astro-mcp - Repository: https://github.com/ganguoguo444004-coder/cosine-astro-mcp - Website: https://www.cosineastro.com/ - Changelog RSS feed: https://verifymcp.io/servers/ganguoguo444004-coder-cosine-astro-mcp/cosine-astro-mcp.xml - Changelog JSON feed: https://verifymcp.io/servers/ganguoguo444004-coder-cosine-astro-mcp/cosine-astro-mcp.json - HTML version of this page: https://verifymcp.io/servers/ganguoguo444004-coder-cosine-astro-mcp/cosine-astro-mcp