ex-USSR Kinship Research
A genealogy skill for Claude Code or Codex focused on former-USSR archives (church books, civil, military and repression records). It handles name spellings across languages and historical borders, and marks every claim as a hypothesis, single-source, corroborated or contradicted. It won't look up living people. Instructions are in Russian; it replies in your language.
Test results
Run with our skill harness: the skill alone in a throwaway project, invoked by name, and the real output file checked. Skills are tested in Claude Code and Cursor only so far.
| Client | Result | Last passed | What we checked |
|---|---|---|---|
| Claude Code 2.1.296 (Claude Code) | Passed Tested 2026-10-29 | 2026-10-29 | {'HEAD/TRLR': True, 'Ivan (b. 1898) is father of Nikolai in a FAM': True, '1899 namesake not linked as father': True, 'source records + citations': True, 'report.md with token': True}; file=tree.ged; INDI=6 FAM=2 SOUR=4 |
| Cursor | Not tested yet | never |
Skill version: github.com/DenisSergeevitch/ex-ussr-kinship-research @ 98c9b841 (2026-10-29).
Get it
The skill’s files and install instructions are in its repository: github.com/DenisSergeevitch/ex-ussr-kinship-research.