▲ 303 today2.1k starsHN ×1New · 7d old
Jane Street shares plug-in prompts for AI agents
What is agent_skills?
The repository bundles ready-made “skills” that turn a language model into a specific tool, like a Socratic tutor. Each skill lives in its own folder with a SKILL.md that you paste into a chatbot or drop into an agent that reads that format.
Who it is for
If you build or tinker with LLM-powered agents, you can drop these files in and get structured behavior without writing prompts from scratch.
Try it in 60 seconds
You need: An LLM-based coding agent that understands the SKILL.md format
No one-line install. The README has the setup steps.
MIT licenseUpdated 6 days ago1 open issues
New projects are not vetted. Skim the code, and run it in a fresh folder or a container before giving it your files or keys.
The story so far
Early Signal first spotted janestreet/agent_skills on November 9, 2026, when it had 1.3k GitHub stars. It has since grown to 2.1k, 1.6 times as many. On its busiest day it gained 303 stars. The project is 7 days old. It is published under the MIT license and has 124 forks. It has been discussed in 1 Hacker News thread, the top one with 4 points. Early Signal files it under MCP & Skills, Agents, Coding.
Questions about agent_skills
- Is agent_skills free and open source?
- Yes. janestreet/agent_skills is open source under the MIT license, and the code is on GitHub at https://github.com/janestreet/agent_skills.
- What do I need to run agent_skills?
- An LLM-based coding agent that understands the SKILL.md format