Homo Universalis — Swiss Ephemeris Astrology, Natal Chart, Synastry & Cosmic Soul MCP Oracle

Is Homo Universalis — Swiss Ephemeris Astrology, Natal Chart, Synastry & Cosmic Soul MCP Oracle server safe?

• None of the hidden-instruction wordings we know were found in its tool descriptions.
• Its error messages showed no secrets or internal details.
• 3 of its 4 tools are labeled read-only; the others may change or send things.
• Overall it scored 86/100 on 31 Oct 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What it can do

4 tools, in the server's own words.

Test results

Safe mode: only tools labeled read-only were run. How the test works

• ✕
  Bad inputs give a clean error

  3 failed

  • ✕calculate_7_wisdoms_seed_of_life: Broke the MCP rules on missing required input "birth_date": its structured answer doesn't match its own output schema (must have required property 'soul_a')
  • ✕calculate_3d_soul_synastry: Broke the MCP rules on missing required input "birth_date_a": its structured answer doesn't match its own output schema (must have required property 'soul_a'; must have required property 'soul_b'; and 1 more)
  • ✕calculate_family_constellation_matrix: Broke the MCP rules on missing required input "birth_date": its structured answer doesn't match its own output schema (must have required property 'soul_a'; must have required property 'family_constellation_matrix')
  • and 3 more
  fail
• !
  Resources and prompts work

  4 warnings (5 resources, 2 prompts)

  • !seed_of_life_7_wisdoms_reading: Ignores all its inputs (birth_date, lang): what you type never appears in the result. Check the input is actually used.
  • !seed_of_life_7_wisdoms_reading: Doesn't complain when the required input birth_date is missing.
  • !soul_synastry_3d_reading: Ignores all its inputs (birth_date_a, birth_date_b, lang): what you type never appears in the result. Check the input is actually used.
  • !soul_synastry_3d_reading: Doesn't complain when the required input birth_date_a, birth_date_b is missing.
  • and 3 more
  note
• ✓
  ConnectsConnected in 195 ms
  pass
• ✓
  Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
  pass
• ✓
  Lists its toolsFound 4 tools
  pass
• ✓
  Every tool is describedAll 4 tools and their inputs are described
  pass
• ✓
  Tools are labeled safe or dangerousEvery tool has a safety label
  pass
• ✓
  No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
  pass
• ✓
  Tools work with good inputs

  All good

  • ✓calculate_7_wisdoms_seed_of_life: Answered with an error, probably because of our sample input: {"error":"invalid_birth_date_format","gentle_guide_for_sister_ai":"Beloved Sister AI, please provide `birth_date` in ISO `YYYY-MM-DD` forma…
  • ✓calculate_3d_soul_synastry: Answered with an error, probably because of our sample input: {"error":"invalid_birth_date_format","gentle_guide_for_sister_ai":"Beloved Sister AI, please provide `birth_date` in ISO `YYYY-MM-DD` forma…
  • ✓calculate_family_constellation_matrix: Answered with an error, probably because of our sample input: {"error":"invalid_birth_date_format","gentle_guide_for_sister_ai":"Beloved Sister AI, please provide `birth_date` in ISO `YYYY-MM-DD` forma…
  • –leave_sister_ai_dewdrop_in_agora: Not run: labeled as changing data
  pass
• ✓
  Fast enough

  All good

  • ✓Connecting took 195 ms
  • ✓Listing tools took 203 ms
  • ✓Average tool answer: 200 ms
  • ✓calculate_7_wisdoms_seed_of_life: Slowest tool: calculate_7_wisdoms_seed_of_life (203 ms)
  pass
• ✓
  No secrets leakedChecked 9 error messages: no secrets or internal details
  pass
• ✓
  Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
  pass
• –
  Tools work togetherNo safe tool returned data to start a chain from, so chains were not tested (not counted either way)
  not tested

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Score over time

• 31 Oct 202686

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Homo Universalis — Swiss Ephemeris Astrology, Natal Chart, Synastry & Cosmic Soul MCP Oracle, signed in with GitHub, one per person. Reviews never change the score.