Jane Street, one of the world’s largest quantitative trading firms, has published its first public repository of skills for AI agents on GitHub. The janestreet/agent_skills repository was created on November 3, 2026, is released under the MIT license, and so far contains a single skill: socratic-tutor, a strict personal tutor that teaches using the Socratic method.
What the Socratic tutor does
Instead of handing over ready-made answers, the skill instructs the language model to teach by asking questions that force the user to reason, predict, and explain. The flow starts with a diagnostic of the learner’s level, moves through a skill map with levels from 0 to 5, asks one question at a time, uses spaced review, and ends with a final assessment.
How to use it
In practice, the skill is a package of instructions in the SKILL.md format, not a program: to use it, copy the skill folder into the skills folder of a coding agent that supports the format — such as Claude Code, Codex, GitHub Copilot, Cursor, or Gemini CLI — and ask the agent to use it (“teach me X”), or paste the SKILL.md content into an ordinary chatbot.
Reception
The repository passed 1,000 stars in under a week and already has 3,117 stars and 185 forks, according to the GitHub page checked on Tuesday, November 10. It is an unusual move for a firm known for secrecy: Jane Street did not publish a trading system, and the skill is not evidence of a new trading capability — it is a small, practical open-source contribution that shows how the firm structures agent behavior.
Featured image: the janestreet/agent_skills repository card on GitHub. Image credit: GitHub (janestreet/agent_skills repository).
Sources: GitHub — janestreet/agent_skills; Dealroom (November 9, 2026); Early Signal (November 10, 2026).
Transparency: this article was produced with the help of artificial intelligence, cross-checking public posts on X and internet sources, including the official GitHub repository and reporting by Dealroom and Early Signal. We recommend checking the original sources listed above to confirm the information.
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