🛠 Jane Street releases socratic-tutor — a strict LLM tutor

The quantitative trading firm has published the MIT-licensed agent_skills repository — skills for AI agents in SKILL.md format. The first skill is model-agnostic: level diagnostics, a 0–5 skill map, one question at a time, spaced repetition, and final assessment. It gained approximately 2,400 GitHub stars in one week.

🌍 A reference for the growing Agent Skills standard: SKILL.md is supported by Claude and other hosts. The mechanism is a pure prompt with no code or dependencies: transparent, diffable in git, and portable.

👤 Insert the file into your agent and ask to “teach me X” — Socratic learning with progress control, not a lecture. Commands include: show progress, harder/easier, just tell me, save state. Knowledge gain is not measured, and session state is sent to third-party providers.

Source 1: https://github.com/janestreet/agent_skills Source 2: https://www.explainx.ai/blog/janestreet-agent-skills-socratic-tutor-github-2026