OS

One Skill to Rule Them All

A meta-skill that watches your sessions, captures patterns and corrections, and turns them into new or improved skills.

🧩 SkillSource: rebelytics/one-skill-to-rule-them-allBy rebelyticsGitHub stars3,457License: CC-BY-4.0Updated 2026-10-16GitHub ↗

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.

ClientResultLast passedWhat we checked
Claude Code
2.1.296 (Claude Code)
Passed
Tested 2026-10-28
2026-10-28task-observer: {'observation file with token': True, 'content kept (ISO dates / snake_case)': True}; file=workspace/skill-observations/observation-log/0001-csv-export-iso-dates-snake-case-headers.md
Cursor
2026.10.22-27dcf5f
Passed
Tested 2026-10-28
2026-10-28task-observer: {'observation file with token': True, 'content kept (ISO dates / snake_case)': True}; file=workspace/observation-body-csv-export-format.md

Skill version: github.com/rebelytics/one-skill-to-rule-them-all @ ba696b2c (2026-10-26).

Earlier runs:

  • Cursor, 2026-10-28: failed (task (timeout); output_check)

Get it

The skill’s files and install instructions are in its repository: github.com/rebelytics/one-skill-to-rule-them-all.

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