io.github.heungmangoo-art/saju
NPM · SAJU-MCP-SERVER
Korean Four Pillars (Saju) astrology — birth charts, Day Masters, Five Elements, compatibility
Available components
Last scanned (1 hour ago)
Scores higher than 42% of npm servers
Category Entertainment and Games
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. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 213 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability74
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 418 tokens (~104/item across 4 items; 4 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage79
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 38% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
- Stability: 0.97 → pass security
- 2 Nov 26 −1
- Stability: pass → 0.93 functional
- 27 Oct 26 +1
- Stability: 0.97 → pass security
- 26 Oct 26 −1
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 20 Oct 26 +1
- Stability: 0.97 → pass security
- 19 Oct 26 −1
- Stability: pass → 0.97 functional
- 17 Oct 26 +2
- Stability: 0.87 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/saju-mcp-server@1.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
calculate_saju ~137
Calculate Korean Four Pillars (Saju/사주) birth chart from a date of birth. Returns pillars in Hanja and Korean, Day Master, zodiac animal, Five Elements balance, and energy flow.
| Name | Type | Req | Description |
|---|---|---|---|
| day | integer | yes | Birth day (1-31, solar calendar) |
| gender | string | – | Gender for energy flow calculation (default: other) |
| hour | integer | – | Birth hour (0-23, optional — omit if unknown) |
| month | integer | yes | Birth month (1-12, solar calendar) |
| year | integer | yes | Birth year (solar calendar, e.g. 1995) |
No output schema declared.
No examples provided.
check_compatibility ~129
Compare two people's Saju charts for compatibility. Analyzes Day Master element harmony, zodiac (Six Harmony / Six Clash), and elemental complements.
| Name | Type | Req | Description |
|---|---|---|---|
| person1_day | integer | yes | – |
| person1_gender | string | – | – |
| person1_hour | integer | – | – |
| person1_month | integer | yes | – |
| person1_year | integer | yes | – |
| person2_day | integer | yes | – |
| person2_gender | string | – | – |
| person2_hour | integer | – | – |
| person2_month | integer | yes | – |
| person2_year | integer | yes | – |
No output schema declared.
No examples provided.
get_day_master ~101
Look up the personality profile for any of the 10 Day Masters (일간/日干) in Korean Saju astrology. Pass a Heavenly Stem character (甲乙丙丁戊己庚辛壬癸) to get the archetype, image, and personality traits.
| Name | Type | Req | Description |
|---|---|---|---|
| stem | string | yes | Heavenly Stem in Hanja (one of: 甲乙丙丁戊己庚辛壬癸) |
No output schema declared.
No examples provided.
list_stems_and_branches ~51
Reference table: all 10 Heavenly Stems (천간) and 12 Earthly Branches (지지) with Hanja, Korean, English, element, and yin/yang.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the io.github.heungmangoo-art/saju MCP server?
io.github.heungmangoo-art/saju runs locally as an npm package, launched with npx -y saju-mcp-server. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · saju-mcp-server
claude mcp add heungmangoo-art-saju -- npx -y saju-mcp-server
What is the io.github.heungmangoo-art/saju MCP server?
io.github.heungmangoo-art/saju is an MCP server listed in the public MCP registry as io.github.heungmangoo-art/saju. Korean Four Pillars (Saju) astrology, birth charts, Day Masters, Five Elements, compatibility. This page covers its npm package (saju-mcp-server).
Is the io.github.heungmangoo-art/saju MCP server safe to use?
io.github.heungmangoo-art/saju scores 72 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.heungmangoo-art/saju MCP server expose?
io.github.heungmangoo-art/saju exposes 4 tools: calculate_saju, get_day_master, check_compatibility, list_stems_and_branches. Their descriptions and schemas cost roughly 418 tokens of context every time the server is loaded.
Is the io.github.heungmangoo-art/saju MCP server still maintained?
io.github.heungmangoo-art/saju 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.heungmangoo-art/saju MCP server under?
io.github.heungmangoo-art/saju declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.